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		<title>多 LED 光固化配件</title>
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		<dc:creator><![CDATA[Juli Varvarezis]]></dc:creator>
		<pubDate>Tue, 22 Sep 2026 12:27:56 +0000</pubDate>
				<category><![CDATA[DHR 附件]]></category>
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<div class="productheader"><strong>多 LED 光固化配件</strong></div>
<div class="productsubheader" style="width: 100%;">精准可控测量，优化复杂固化过程。<br />
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			<h3 style="clear: both; text-align: justify;">多 LED 光固化配件</h3>
<p style="text-align: justify;"><img fetchpriority="high" decoding="async" width="1193" height="2250" class="size-full wp-image-107243" style="float: right; width: 200px; height: 377px; margin-top: -60px;" src="https://www.tainstruments.com.cn/wp-content/uploads/DHR-1-Multi-LED-Photocure-Full-Beauty.png" alt="多 LED 光固化配件" srcset="https://www.tainstruments.com.cn/wp-content/uploads/DHR-1-Multi-LED-Photocure-Full-Beauty.png 1193w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-1-Multi-LED-Photocure-Full-Beauty-159x300.png 159w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-1-Multi-LED-Photocure-Full-Beauty-543x1024.png 543w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-1-Multi-LED-Photocure-Full-Beauty-768x1448.png 768w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-1-Multi-LED-Photocure-Full-Beauty-814x1536.png 814w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-1-Multi-LED-Photocure-Full-Beauty-1086x2048.png 1086w" sizes="(max-width: 1193px) 100vw, 1193px" /><br />
HR 光固化配件可模拟实际固化工艺开展测量，是研发高性能材料的得力工具。依托软件集成校准与触发功能，可精准控制辐照剂量（光强与曝光时长）。为适配不同工艺需求，<strong>HR 流变仪可选用两款光固化配件</strong>：</p>
<ul>
<li>多 LED 光固化配件</li>
<li><a href="https://www.tainstruments.com.cn/uv-curing-light-guide/">紫外光导配件</a></li>
</ul>
<p style="text-align: justify;">Waters TA Instruments<img src="https://s.w.org/images/core/emoji/17.0.2/72x72/2122.png" alt="™" class="wp-smiley" style="height: 1em; max-height: 1em;" /> 多 LED 光固化配件能够对光固化反应进行精准流变测量，模拟实际固化工艺，助力配方与生产工艺优化。其集成的 LED 光源可在样品位置输出可控波长与光强，提供稳定、精确的测量条件，从而满足研究固化过程中物理性能演变的需求。</p>

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<h3>特点与优势</h3>
<ul>
<li><strong>一机搭载四种波长</strong>：365 nm、385 nm、395 nm 和 405 nm 波长，可同步输出或依次切换</li>
<li>样品位置<strong>精准光强控制</strong>，经辐射计校准验证</li>
<li><strong>光强精度可达 <em>2% 以内</em></strong>，安装后无需重新对位或再次校准</li>
<li><strong>高精度主动温控</strong>，依托专利上帕尔帖板技术，最高可实现 150 °C 温度控制</li>
<li>TRIOS<img src="https://s.w.org/images/core/emoji/17.0.2/72x72/2122.png" alt="™" class="wp-smiley" style="height: 1em; max-height: 1em;" /> 软件能够同步控制流变测量，同步精度 <strong>± 0.1 秒</strong>，并可持续追踪光强变化</li>
<li>通过 SmartSwap<img src="https://s.w.org/images/core/emoji/17.0.2/72x72/2122.png" alt="™" class="wp-smiley" style="height: 1em; max-height: 1em;" />，<strong><em>5 分钟</em>内即可完成安装</strong>，适配功能丰富、灵活多用的流变仪平台</li>
<li>紫外互锁防护罩在<strong>确保操作人员安全</strong>的同时，不妨碍实时观察测试过程</li>
</ul>
</div>
<div class="column-right"><img decoding="async" class="size-medium wp-image-107245" src="https://www.tainstruments.com.cn/wp-content/uploads/DHR-5-Multi-LED-Photocure-Kit.png" alt="多 LED 光固化配件" width="300" height="200" srcset="https://www.tainstruments.com.cn/wp-content/uploads/DHR-5-Multi-LED-Photocure-Kit.png 2250w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-5-Multi-LED-Photocure-Kit-300x200.png 300w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-5-Multi-LED-Photocure-Kit-1024x683.png 1024w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-5-Multi-LED-Photocure-Kit-768x512.png 768w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-5-Multi-LED-Photocure-Kit-1536x1024.png 1536w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-5-Multi-LED-Photocure-Kit-2048x1365.png 2048w" sizes="(max-width: 300px) 100vw, 300px" /></div>
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			<h3 style="clear: both; text-align: justify;">应用领域</h3>
<div style="text-align: justify; clear: both;">
<p><img decoding="async" class="size-medium wp-image-107247" style="float: right;" src="https://www.tainstruments.com.cn/wp-content/uploads/DHR-2-Multi-LED-Photocure-UPP-Detail-37862.png" alt="多 LED 光固化配件" width="279" height="300" srcset="https://www.tainstruments.com.cn/wp-content/uploads/DHR-2-Multi-LED-Photocure-UPP-Detail-37862.png 1147w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-2-Multi-LED-Photocure-UPP-Detail-37862-279x300.png 279w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-2-Multi-LED-Photocure-UPP-Detail-37862-953x1024.png 953w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-2-Multi-LED-Photocure-UPP-Detail-37862-768x826.png 768w" sizes="(max-width: 279px) 100vw, 279px" /></p>
<p style="margin-bottom: 20px;">这款功能多样的多 LED 光固化配件可一键选择四种不同波长，不仅能满足当下的应用需求，更能轻松应对未来的发展。您可在单次实验中切换不同波长或组合使用多种波长，从而对各类新型固化工艺实现全面表征。</p>
<p><span style="color: #00529b; font-size: 22px;">资源</span><br />
应用说明：<a href="https://www.tainstruments.com/applications-notes/multi-wavelength-uv-cure-with-rheometer-rh173/">RH173 Multi-Wavelength UV Cure with Rheometer</a></p>
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			<h3 style="clear: both; text-align: justify;">多 LED 光固化配件</h3>
<p style="text-align: justify;"><img fetchpriority="high" decoding="async" width="1193" height="2250" class="size-full wp-image-107243" style="float: right; width: 200px; height: 377px; margin-top: -60px;" src="https://www.tainstruments.com.cn/wp-content/uploads/DHR-1-Multi-LED-Photocure-Full-Beauty.png" alt="多 LED 光固化配件" srcset="https://www.tainstruments.com.cn/wp-content/uploads/DHR-1-Multi-LED-Photocure-Full-Beauty.png 1193w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-1-Multi-LED-Photocure-Full-Beauty-159x300.png 159w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-1-Multi-LED-Photocure-Full-Beauty-543x1024.png 543w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-1-Multi-LED-Photocure-Full-Beauty-768x1448.png 768w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-1-Multi-LED-Photocure-Full-Beauty-814x1536.png 814w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-1-Multi-LED-Photocure-Full-Beauty-1086x2048.png 1086w" sizes="(max-width: 1193px) 100vw, 1193px" /><br />
HR 光固化配件可模拟实际固化工艺开展测量，是研发高性能材料的得力工具。依托软件集成校准与触发功能，可精准控制辐照剂量（光强与曝光时长）。为适配不同工艺需求，<strong>HR 流变仪可选用两款光固化配件</strong>：</p>
<ul>
<li>多 LED 光固化配件</li>
<li><a href="https://www.tainstruments.com.cn/uv-curing-light-guide/">紫外光导配件</a></li>
</ul>
<p style="text-align: justify;">Waters TA Instruments<img src="https://s.w.org/images/core/emoji/17.0.2/72x72/2122.png" alt="™" class="wp-smiley" style="height: 1em; max-height: 1em;" /> 多 LED 光固化配件能够对光固化反应进行精准流变测量，模拟实际固化工艺，助力配方与生产工艺优化。其集成的 LED 光源可在样品位置输出可控波长与光强，提供稳定、精确的测量条件，从而满足研究固化过程中物理性能演变的需求。</p>

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<h3>特点与优势</h3>
<ul>
<li><strong>一机搭载四种波长</strong>：365 nm、385 nm、395 nm 和 405 nm 波长，可同步输出或依次切换</li>
<li>样品位置<strong>精准光强控制</strong>，经辐射计校准验证</li>
<li><strong>光强精度可达 <em>2% 以内</em></strong>，安装后无需重新对位或再次校准</li>
<li><strong>高精度主动温控</strong>，依托专利上帕尔帖板技术，最高可实现 150 °C 温度控制</li>
<li>TRIOS<img src="https://s.w.org/images/core/emoji/17.0.2/72x72/2122.png" alt="™" class="wp-smiley" style="height: 1em; max-height: 1em;" /> 软件能够同步控制流变测量，同步精度 <strong>± 0.1 秒</strong>，并可持续追踪光强变化</li>
<li>通过 SmartSwap<img src="https://s.w.org/images/core/emoji/17.0.2/72x72/2122.png" alt="™" class="wp-smiley" style="height: 1em; max-height: 1em;" />，<strong><em>5 分钟</em>内即可完成安装</strong>，适配功能丰富、灵活多用的流变仪平台</li>
<li>紫外互锁防护罩在<strong>确保操作人员安全</strong>的同时，不妨碍实时观察测试过程</li>
</ul>
</div>
<div class="column-right"><img decoding="async" class="size-medium wp-image-107245" src="https://www.tainstruments.com.cn/wp-content/uploads/DHR-5-Multi-LED-Photocure-Kit.png" alt="多 LED 光固化配件" width="300" height="200" srcset="https://www.tainstruments.com.cn/wp-content/uploads/DHR-5-Multi-LED-Photocure-Kit.png 2250w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-5-Multi-LED-Photocure-Kit-300x200.png 300w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-5-Multi-LED-Photocure-Kit-1024x683.png 1024w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-5-Multi-LED-Photocure-Kit-768x512.png 768w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-5-Multi-LED-Photocure-Kit-1536x1024.png 1536w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-5-Multi-LED-Photocure-Kit-2048x1365.png 2048w" sizes="(max-width: 300px) 100vw, 300px" /></div>
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	        	<a class="ult-tabto-actitle withBorder ult_a " id="1603286802936-2-1" style="color:#00529b;;background-color:#ffffff;border-bottom-color:transparent;border-bottom-width:0px;border-bottom-style:solid;border-bottom-color:transparent;border-bottom-width:0px;border-bottom-style:solid;border-bottom-color:transparent;border-bottom-width:0px;border-bottom-style:solid;" href="#1603286802936-2-1">
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	            		<dd class="ult-tabto-accordionItem ult-tabto-accolapsed">
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			<h3 style="clear: both; text-align: justify;">应用领域</h3>
<div style="text-align: justify; clear: both;">
<p><img decoding="async" class="size-medium wp-image-107247" style="float: right;" src="https://www.tainstruments.com.cn/wp-content/uploads/DHR-2-Multi-LED-Photocure-UPP-Detail-37862.png" alt="多 LED 光固化配件" width="279" height="300" srcset="https://www.tainstruments.com.cn/wp-content/uploads/DHR-2-Multi-LED-Photocure-UPP-Detail-37862.png 1147w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-2-Multi-LED-Photocure-UPP-Detail-37862-279x300.png 279w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-2-Multi-LED-Photocure-UPP-Detail-37862-953x1024.png 953w, https://www.tainstruments.com.cn/wp-content/uploads/DHR-2-Multi-LED-Photocure-UPP-Detail-37862-768x826.png 768w" sizes="(max-width: 279px) 100vw, 279px" /></p>
<p style="margin-bottom: 20px;">这款功能多样的多 LED 光固化配件可一键选择四种不同波长，不仅能满足当下的应用需求，更能轻松应对未来的发展。您可在单次实验中切换不同波长或组合使用多种波长，从而对各类新型固化工艺实现全面表征。</p>
<p><span style="color: #00529b; font-size: 22px;">资源</span><br />
应用说明：<a href="https://www.tainstruments.com/applications-notes/multi-wavelength-uv-cure-with-rheometer-rh173/">RH173 Multi-Wavelength UV Cure with Rheometer</a></p>
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</div><p>The post <a href="https://www.tainstruments.com.cn/multi-led-photocure-accessory/">多 LED 光固化配件</a> first appeared on <a href="https://www.tainstruments.com.cn">TA仪器</a>.</p>]]></content:encoded>
					
		
		
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		<title>Beyond Traditional DMA: What Are You Missing Without Real High Force DMA?</title>
		<link>https://pages.waters.com/Beyond-Traditional-DMA-Webinar-On-Demand-Registration.html?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=beyond-traditional-dma-what-are-you-missing-without-real-high-force-dma</link>
		
		<dc:creator><![CDATA[Juli Varvarezis]]></dc:creator>
		<pubDate>Fri, 18 Sep 2026 16:34:58 +0000</pubDate>
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		<title>Thermal, Mechanical, and Dimensional Characterization of Substrates for Electronics</title>
		<link>https://pages.waters.com/Thermal-Mechanical-and-Dimensional-Characterization-of-Substrates-for-Electronics-On-Demand-Registration.html?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=thermal-mechanical-and-dimensional-characterization-of-substrates-for-electronics</link>
		
		<dc:creator><![CDATA[Juli Varvarezis]]></dc:creator>
		<pubDate>Wed, 26 Aug 2026 18:46:14 +0000</pubDate>
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		<title>Using the Double Wall Ring for Interfacial Measurements on the Discovery™ HR</title>
		<link>https://www.tainstruments.com.cn/using-the-double-wall-ring-for-interfacial-measurements-on-the-discovery-hr/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=using-the-double-wall-ring-for-interfacial-measurements-on-the-discovery-hr</link>
		
		<dc:creator><![CDATA[Juli Varvarezis]]></dc:creator>
		<pubDate>Thu, 20 Aug 2026 20:33:00 +0000</pubDate>
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		<guid isPermaLink="false">https://www.tainstruments.com.cn/?p=107178</guid>

					<description><![CDATA[]]></description>
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			<h3>Overview</h3>
<p>In this tech tip, learn how to use the Double Wall Ring (DWR) interfacial accessory on TA Instruments HRX rheometers to perform quantitative interfacial measurements, complete essential calibrations, accurately position the ring at the liquid interface, and optimize oscillatory testing conditions.</p>

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</div><p>The post <a href="https://www.tainstruments.com.cn/using-the-double-wall-ring-for-interfacial-measurements-on-the-discovery-hr/">Using the Double Wall Ring for Interfacial Measurements on the Discovery™ HR</a> first appeared on <a href="https://www.tainstruments.com.cn">TA仪器</a>.</p>]]></content:encoded>
					
		
		
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		<title>Part II: Advanced Rheometric Applications for Aging/Mutating Systems</title>
		<link>https://www.tainstruments.com.cn/part-ii-advanced-rheometric-applications-for-aging-mutating-systems-video/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=part-ii-advanced-rheometric-applications-for-aging-mutating-systems-video</link>
		
		<dc:creator><![CDATA[Juli Varvarezis]]></dc:creator>
		<pubDate>Thu, 20 Aug 2026 16:15:11 +0000</pubDate>
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		<title>Part I: Basics of the Optimally-Windowed Exponential Chirp</title>
		<link>https://www.tainstruments.com.cn/part-i-basics-of-the-optimally-windowed-exponential-chirp-video/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=part-i-basics-of-the-optimally-windowed-exponential-chirp-video</link>
		
		<dc:creator><![CDATA[Juli Varvarezis]]></dc:creator>
		<pubDate>Thu, 20 Aug 2026 15:06:15 +0000</pubDate>
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		<title>Selecting Candidates &#038; Optimizing Drug Formulations – Leveraging Heat, Weight, and Flow</title>
		<link>https://www.tainstruments.com.cn/selecting-candidates-optimizing-drug-formulations-leveraging-heat-weight-and-flow/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=selecting-candidates-optimizing-drug-formulations-leveraging-heat-weight-and-flow</link>
		
		<dc:creator><![CDATA[Juli Varvarezis]]></dc:creator>
		<pubDate>Wed, 19 Aug 2026 21:11:11 +0000</pubDate>
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		<guid isPermaLink="false">https://www.tainstruments.com.cn/?p=107150</guid>

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<h3><strong>Selecting Candidates &amp; Optimizing Drug Formulations – Leveraging Heat, Weight, and Flow</strong></h3>

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<p>Selecting the right drug candidates and formulating them for success requires more than isolated data points—it demands a holistic understanding of how biomolecules behave and interact with each other. In this webinar, we will demonstrate how <strong>microcalorimetry</strong>, <strong>thermal analysis</strong>, and <strong>rheology</strong> deliver complementary insights into the properties that matter most: <strong>binding energetics</strong>, <strong>molecular and thermal stability</strong>, <strong>phase behavior</strong>, <strong>moisture content</strong>, and <strong>flow performance</strong>. By connecting heat, weight, and flow measurements, researchers can <strong>rapidly differentiate promising candidates</strong>, <strong>de-risk formulations</strong>, and <strong>resolve common development challenges</strong> before they reach late-stage testing.</p>
<p>Join us to see how integrating these techniques into your workflow can accelerate the path to a high-quality biopharmaceutical product by:</p>
<ul>
<li class="x_MsoListParagraph">shortening development timelines</li>
<li class="x_MsoListParagraph">improving formulation robustness</li>
<li class="x_MsoListParagraph">increasing confidence in critical go/no go decisions</li>
</ul>
<h5>To view this webinar, complete the form to the right →</h5>
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<div style="float: left; margin-right: 20px;"><img loading="lazy" decoding="async" width="300" height="300" class="size-medium wp-image-107156" style="max-width: 90px !important; height: auto !important; width: auto !important;" src="https://www.tainstruments.com.cn/wp-content/uploads/Viviana-Headshot-300x300.png" alt="Viviana Costa" srcset="https://www.tainstruments.com.cn/wp-content/uploads/Viviana-Headshot-300x300.png 300w, https://www.tainstruments.com.cn/wp-content/uploads/Viviana-Headshot-1024x1024.png 1024w, https://www.tainstruments.com.cn/wp-content/uploads/Viviana-Headshot-150x150.png 150w, https://www.tainstruments.com.cn/wp-content/uploads/Viviana-Headshot-768x768.png 768w, https://www.tainstruments.com.cn/wp-content/uploads/Viviana-Headshot.png 1080w" sizes="auto, (max-width: 300px) 100vw, 300px" /></div>
<div style="margin-left: 20px;"><strong>Viviana Costa, PhD</strong><br />
Applications Scientist<br />
Waters Materials Sciences (formerly Waters TA Instruments)</div>
<div style="clear: both;">
<p>Viviana Costa earned her master’s degree in chemical engineering from the University of Coimbra, Portugal and her Ph.D. in Chemistry from Texas Christian University, Fort Worth, Texas. Dr. Costa joined TA instruments in 2023 as an Applications Scientist, based in Lindon, Utah. She supports the microcalorimetry product line and related applications.</p>
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</div><p>The post <a href="https://www.tainstruments.com.cn/selecting-candidates-optimizing-drug-formulations-leveraging-heat-weight-and-flow/">Selecting Candidates & Optimizing Drug Formulations – Leveraging Heat, Weight, and Flow</a> first appeared on <a href="https://www.tainstruments.com.cn">TA仪器</a>.</p>]]></content:encoded>
					
		
		
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		<title>Thermal Characterization of Advanced Materials for Aerospace</title>
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		<dc:creator><![CDATA[Juli Varvarezis]]></dc:creator>
		<pubDate>Wed, 19 Aug 2026 21:08:05 +0000</pubDate>
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		<title>Using the Cox-Merz Transformation in TRIOS™ Software</title>
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		<dc:creator><![CDATA[Super Admin]]></dc:creator>
		<pubDate>Wed, 19 Aug 2026 16:35:19 +0000</pubDate>
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<p>In this tech tip, learn how to apply the Cox-Merz rule in Trios software to predict high-shear polymer melt behavior from frequency sweep data and validate the results against steady-state flow measurements.</p>

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</div><p>The post <a href="https://www.tainstruments.com.cn/using-the-cox-merz-transformation-in-trios-software/">Using the Cox-Merz Transformation in TRIOS™ Software</a> first appeared on <a href="https://www.tainstruments.com.cn">TA仪器</a>.</p>]]></content:encoded>
					
		
		
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		<title>何时使用DSC、TMA或DMA测量玻璃化转变温度(Tg)。</title>
		<link>https://www.tainstruments.com.cn/when-to-measure-glass-transition-temperature-tg-on-dsc-tma-or-dma-blog/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=when-to-measure-glass-transition-temperature-tg-on-dsc-tma-or-dma-blog</link>
		
		<dc:creator><![CDATA[Juli Varvarezis]]></dc:creator>
		<pubDate>Tue, 28 Jul 2026 21:09:47 +0000</pubDate>
				<category><![CDATA[Blog Applications]]></category>
		<category><![CDATA[Blog Techniques]]></category>
		<category><![CDATA[Thermal Analysis]]></category>
		<category><![CDATA[电池及电池材料]]></category>
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					<description><![CDATA[<p>如今的电池创新正不断突破极限，实现更高的能量密度、更高的功率以及更长的续航时间。然而，这些进步可能会带来严重的安全风险。在开放周期的早期阶段测量电池的安全性和稳定性，对于确保新设计在推进完整电池规模化量产前取得成功至关重要。</p>
<p>The post <a href="https://www.tainstruments.com.cn/when-to-measure-glass-transition-temperature-tg-on-dsc-tma-or-dma-blog/">何时使用DSC、TMA或DMA测量玻璃化转变温度(Tg)。</a> first appeared on <a href="https://www.tainstruments.com.cn">TA仪器</a>.</p>]]></description>
										<content:encoded><![CDATA[<div class="wpb-content-wrapper" id="wpb-content-root"><div class="vc_row wpb_row vc_row-fluid dt-default" style="margin-top: 0px;margin-bottom: 0px"><div class="wpb_column vc_column_container vc_col-sm-12"><div class="vc_column-inner"><div class="wpb_wrapper"><div class="vc_row wpb_row vc_inner vc_row-fluid"><div class="wpb_column vc_column_container vc_col-sm-2"><div class="vc_column-inner"><div class="wpb_wrapper"></div></div></div><div class="wpb_column vc_column_container vc_col-sm-8"><div class="vc_column-inner"><div class="wpb_wrapper">
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			<h1 style="font-weight: bold;">何时使用DSC、TMA或DMA测量玻璃化转变温度(Tg)。</h1>

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			<p><strong>Morgan Ulrich | Abhinandh Sankar</strong><br />
2026 年 7 月 28 日</p>

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<p>玻璃化转变温度 (Tg) 是定义材料完整性、制造条件和操作指南的基本材料特性，适用于聚合物、电子产品和先进材料等应用领域。玻璃化转变可以通过三种热分析技术进行测量：DSC、TMA 和 DMA 各有其适用的材料和应用。这篇博客将解释这些技术如何测量Tg，以及何时应该选择哪种技术。</p>
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			<div class="vc_single_image-wrapper  "><img loading="lazy" decoding="async" width="1700" height="1080" src="https://www.tainstruments.com.cn/wp-content/uploads/Artboard-1-copy-1.png" class="vc_single_image-img attachment-full" alt="When to Measure Glass Transition Temperature (Tg) on DSC, TMA, or DMA" title="When to Measure Glass Transition Temperature (Tg) on DSC, TMA, or DMA" srcset="https://www.tainstruments.com.cn/wp-content/uploads/Artboard-1-copy-1.png 1700w, https://www.tainstruments.com.cn/wp-content/uploads/Artboard-1-copy-1-300x191.png 300w, https://www.tainstruments.com.cn/wp-content/uploads/Artboard-1-copy-1-1024x651.png 1024w, https://www.tainstruments.com.cn/wp-content/uploads/Artboard-1-copy-1-768x488.png 768w, https://www.tainstruments.com.cn/wp-content/uploads/Artboard-1-copy-1-1536x976.png 1536w" sizes="auto, (max-width: 1700px) 100vw, 1700px"  data-dt-location="https://www.tainstruments.com.cn/when-to-measure-glass-transition-temperature-tg-on-dsc-tma-or-dma-blog/artboard-1-copy-1/" /></div>
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			<h3>什么是玻璃化转变温度（Tg）？</h3>

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<p>玻璃化转变是指非晶态材料在加热时从玻璃态转变为橡胶态，或在冷却时从橡胶态转变为非晶态的温度区域。玻璃化转变实际上发生在一定的温度范围内，但通常被报道为一个单一的温度，称为 Tg。</p>
<p>了解玻璃化转变温度有助于解答一些重要问题，例如：</p>
<ul>
<li>印刷电路板（PCB）在什么温度下有分层风险？</li>
<li>注塑成型或聚合物共混而不发生降解的理想温度是多少？</li>
<li>材料在使用过程中会发生变形或开裂吗？</li>
</ul>
<p>玻璃化转变可以通过DSC、TMA和DMA来测量。这些热学技术均基于玻璃化转变过程中不同材料特性的变化来检测 Tg。选择正确的方法对于获得可靠的数据和对材料进行定量比较至关重要。</p>
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			<h3>DSC测定的玻璃化转变</h3>

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<p>差示扫描量热法（DSC）是测量玻璃化转变最常用的方法。DSC 测量样品相对于惰性参考物的热量流入和流出，揭示热容变化，用于定义玻璃化转变。这些热容变化产生了三个温度值：玻璃化转变的起始温度、转变的中点温度和转变的结束温度。</p>
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			<div class="vc_single_image-wrapper  "><img loading="lazy" decoding="async" width="1536" height="975" src="https://www.tainstruments.com.cn/wp-content/uploads/Figure-1-1.png" class="vc_single_image-img attachment-full" alt="图1：聚碳酸酯（13 mg）在 20 °C/min 升温速率下的 DSC 玻璃化转变曲线" title="图1：聚碳酸酯（13 mg）在 20 °C/min 升温速率下的 DSC 玻璃化转变曲线" srcset="https://www.tainstruments.com.cn/wp-content/uploads/Figure-1-1.png 1536w, https://www.tainstruments.com.cn/wp-content/uploads/Figure-1-1-300x190.png 300w, https://www.tainstruments.com.cn/wp-content/uploads/Figure-1-1-1024x650.png 1024w, https://www.tainstruments.com.cn/wp-content/uploads/Figure-1-1-768x488.png 768w" sizes="auto, (max-width: 1536px) 100vw, 1536px"  data-dt-location="https://www.tainstruments.com.cn/when-to-measure-glass-transition-temperature-tg-on-dsc-tma-or-dma-blog/figure-1-2/" /></div><figcaption class="vc_figure-caption">图1：聚碳酸酯（13 mg）在 20 °C/min 升温速率下的 DSC 玻璃化转变曲线</figcaption>
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<p>实验设计对DSC结果至关重要。更高的加热速率可以提供更高的灵敏度，但由于仪器效应、样品热导率和转变动力学，会使 Tg 发生偏移。尽管如此，<a href="https://www.tainstruments.com/%e4%ba%a7%e5%93%81/thermal-analysis/differential-scanning-calorimeters/?lang=zh-hans">现代 DSC 仪器</a>仍具有优异的基准性能，并且当与高加热速率相结合时，可为非晶态、半结晶态和增塑材料以及热固性树脂提供可靠的 Tg 测量。DSC 可以同时测量熔融、结晶和固化反应，提供其他方法所缺乏的额外热数据。</p>
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			<div class="vc_single_image-wrapper  "><img loading="lazy" decoding="async" width="768" height="478" src="https://www.tainstruments.com.cn/wp-content/uploads/Figure-2.png" class="vc_single_image-img attachment-full" alt="图2：聚苯乙烯（18 mg）的玻璃化转变起始点、中点和终止点（由DSC测定）随升温速率的变化，展示了升温速率对所测Tg值的影响。" title="图2：聚苯乙烯（18 mg）的玻璃化转变起始点、中点和终止点（由DSC测定）随升温速率的变化，展示了升温速率对所测Tg值的影响。" srcset="https://www.tainstruments.com.cn/wp-content/uploads/Figure-2.png 768w, https://www.tainstruments.com.cn/wp-content/uploads/Figure-2-300x187.png 300w" sizes="auto, (max-width: 768px) 100vw, 768px"  data-dt-location="https://www.tainstruments.com.cn/when-to-measure-glass-transition-temperature-tg-on-dsc-tma-or-dma-blog/figure-2/" /></div><figcaption class="vc_figure-caption">图2：聚苯乙烯（18 mg）的玻璃化转变起始点、中点和终止点（由DSC测定）随升温速率的变化，展示了升温速率对所测Tg值的影响。</figcaption>
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<p>调制差示扫描量热法 (MDSC) 通过施加振荡热流，提供有关可逆和非可逆转变的更多信息。虽然体积弛豫吸热峰可能会扭曲传统 DSC 的 Tg，但 MDSC 将体积弛豫吸热峰与 Tg 处的热容变化逆向变化分离，从而获得更可靠的测量结果。MDSC 还可以区分不可逆转变（如冷结晶和固化），并提供检测与加热速率相关的转变的灵敏度。MDSC 对半结晶聚合物、多层薄膜或部分固化的热固性材料尤其有价值。</p>
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			<div class="vc_single_image-wrapper  "><img loading="lazy" decoding="async" width="768" height="501" src="https://www.tainstruments.com.cn/wp-content/uploads/Figure-3.png" class="vc_single_image-img attachment-full" alt="图3：利用MDSC技术测得的聚碳酸酯玻璃化转变（样品量12 mg，升温速率5 °C/min，调制振幅0.5 °C，调制周期50 s），展示了MDSC在检测玻璃化转变温度（Tg）方面更高的灵敏度。" title="图3：利用MDSC技术测得的聚碳酸酯玻璃化转变（样品量12 mg，升温速率5 °C/min，调制振幅0.5 °C，调制周期50 s），展示了MDSC在检测玻璃化转变温度（Tg）方面更高的灵敏度。" srcset="https://www.tainstruments.com.cn/wp-content/uploads/Figure-3.png 768w, https://www.tainstruments.com.cn/wp-content/uploads/Figure-3-300x196.png 300w" sizes="auto, (max-width: 768px) 100vw, 768px"  data-dt-location="https://www.tainstruments.com.cn/when-to-measure-glass-transition-temperature-tg-on-dsc-tma-or-dma-blog/figure-3/" /></div><figcaption class="vc_figure-caption">图3：利用MDSC技术测得的聚碳酸酯玻璃化转变（样品量12 mg，升温速率5 °C/min，调制振幅0.5 °C，调制周期50 s），展示了MDSC在检测玻璃化转变温度（Tg）方面更高的灵敏度。</figcaption>
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			<h3>TMA上的玻璃化转变</h3>

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<p><a href="https://www.tainstruments.com/products/thermal-analysis/thermomechanical-analyzers/?lang=zh-hant&amp;utm_source=blog&amp;utm_medium=link&amp;utm_campaign=Tg">热机械分析 (TMA)</a>是根据样品受热时尺寸的变化来测量玻璃化转变的。Tg 可以通过热膨胀的变化来测量，也可以通过探针穿透深度的增加来测量，因为材料在玻璃化转变过程中会软化。膨胀模式适用于刚性热塑性塑料和具有明确膨胀过渡的材料，而渗透模式更适用于在 Tg 以上明显软化的材料，例如较软的聚合物、涂料、粘合剂和一些弹性体。</p>
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			<div class="vc_single_image-wrapper  "><img loading="lazy" decoding="async" width="2560" height="896" src="https://www.tainstruments.com.cn/wp-content/uploads/Figure-4-scaled.png" class="vc_single_image-img attachment-full" alt="图4 左：利用TMA膨胀探头测定的聚碳酸酯玻璃化转变，其中Tg通过斜率的变化来测定。右：利用TMA穿透探头测定的聚苯乙烯玻璃化转变，显示了基于尺寸变化导数确定的Tg。" title="图4 左：利用TMA膨胀探头测定的聚碳酸酯玻璃化转变，其中Tg通过斜率的变化来测定。右：利用TMA穿透探头测定的聚苯乙烯玻璃化转变，显示了基于尺寸变化导数确定的Tg。" srcset="https://www.tainstruments.com.cn/wp-content/uploads/Figure-4-scaled.png 2560w, https://www.tainstruments.com.cn/wp-content/uploads/Figure-4-300x105.png 300w, https://www.tainstruments.com.cn/wp-content/uploads/Figure-4-1024x359.png 1024w, https://www.tainstruments.com.cn/wp-content/uploads/Figure-4-768x269.png 768w, https://www.tainstruments.com.cn/wp-content/uploads/Figure-4-1536x538.png 1536w, https://www.tainstruments.com.cn/wp-content/uploads/Figure-4-2048x717.png 2048w" sizes="auto, (max-width: 2560px) 100vw, 2560px"  data-dt-location="https://www.tainstruments.com.cn/when-to-measure-glass-transition-temperature-tg-on-dsc-tma-or-dma-blog/figure-4/" /></div><figcaption class="vc_figure-caption">图4 左：利用TMA膨胀探头测定的聚碳酸酯玻璃化转变，其中Tg通过斜率的变化来测定。右：利用TMA穿透探头测定的聚苯乙烯玻璃化转变，显示了基于尺寸变化导数确定的Tg。</figcaption>
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<p>对于填充、高度结晶或交联的材料，TMA 比 DSC 更合适，因为在 Tg 处观察到的尺寸变化通常很显著。然而，TMA 测得的 Tg 曲线通常较宽，可能受到探针加载条件的影响，并且可能受到体积弛豫效应的影响。</p>
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			<h3>DMA上的玻璃化转变</h3>

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<p><a href="https://www.tainstruments.com/%e4%ba%a7%e5%93%81/%e6%b5%81%e5%8f%98%e5%ad%a6/dynamic-mechanical-analyzers/?lang=zh-hans">动态力学分析 (DMA)</a>通过施加振荡的机械应力或应变来测量机械刚度和能量吸收的变化。随着分子运动在玻璃化转变过程中增加，储能模量（E&#8217;）急剧下降，使得DMA成为测定Tg最灵敏的技术之一。这种灵敏度非常适合检测高填充、结晶或交联材料中非晶态含量极低的Tg。</p>
<p>可以使用三个 DMA 事件来定义玻璃化转变的范围。储能模量起始点 (E&#8217;) 标志着玻璃化转变的开始，损耗模量峰值 (E”) 是玻璃化转变的中点，损耗角正切峰值代表转变的上限。</p>
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			<div class="vc_single_image-wrapper  "><img loading="lazy" decoding="async" width="768" height="505" src="https://www.tainstruments.com.cn/wp-content/uploads/Figure-5.png" class="vc_single_image-img attachment-full" alt="图5：聚碳酸酯的DMA玻璃化转变（1 Hz，3 °C/min）" title="图5：聚碳酸酯的DMA玻璃化转变（1 Hz，3 °C/min）" srcset="https://www.tainstruments.com.cn/wp-content/uploads/Figure-5.png 768w, https://www.tainstruments.com.cn/wp-content/uploads/Figure-5-300x197.png 300w" sizes="auto, (max-width: 768px) 100vw, 768px"  data-dt-location="https://www.tainstruments.com.cn/when-to-measure-glass-transition-temperature-tg-on-dsc-tma-or-dma-blog/figure-5/" /></div><figcaption class="vc_figure-caption">图5：聚碳酸酯的DMA玻璃化转变（1 Hz，3 °C/min）</figcaption>
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			<h3>选择适合您材料的技术</h3>

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<p>DSC、TMA 和 DMA 在测定不同材料的 Tg 时各有其优势和劣势。下表总结了根据我们的研究，不同热分析技术在评估不同材料的玻璃化转变温度（Tg）方面的相对效用：</p>
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			<p><em>表 1.采用DSC、TMA和DMA测量的性能</em></p>
<div class="aligncenter">
<table style="width: 100%;">
<thead>
<tr style="background-color: #00529b; color: white;">
<th style="text-align: left; padding-left: 10px; width: 40%;">聚合物类型</th>
<th style="text-align: left; width: 15%;">DSC</th>
<th style="text-align: left; width: 15%;">MSDSC</th>
<th style="text-align: left; width: 15%;">DMA</th>
<th style="text-align: left; width: 15%;">TMA</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align: left; padding-left: 10px; width: 25%;">非晶态</td>
<td>最好的</td>
<td>最好的</td>
<td>最好的</td>
<td>最好的</td>
</tr>
<tr>
<td style="text-align: left; padding-left: 10px; width: 25%;">半结晶</td>
<td>更好的</td>
<td>最好的</td>
<td>最好的</td>
<td>最好的</td>
</tr>
<tr>
<td style="text-align: left; padding-left: 10px; width: 25%;">高度结晶</td>
<td>好的</td>
<td>好的</td>
<td>最好的</td>
<td>最好的</td>
</tr>
<tr>
<td style="text-align: left; padding-left: 10px; width: 25%;">塑化</td>
<td>更好的</td>
<td>最好的</td>
<td>更好的</td>
<td>最好的</td>
</tr>
<tr>
<td style="text-align: left; padding-left: 10px; width: 25%;">热固性树脂</td>
<td>最好的</td>
<td>最好的</td>
<td>更好的</td>
<td>更好的</td>
</tr>
<tr>
<td style="text-align: left; padding-left: 10px; width: 25%;">固化热固性树脂</td>
<td>好的</td>
<td>更好的</td>
<td>更好的</td>
<td>最好的</td>
</tr>
<tr>
<td style="text-align: left; padding-left: 10px; width: 25%;">弹性体</td>
<td>更好的</td>
<td>最好的</td>
<td>更好的</td>
<td>最好的</td>
</tr>
<tr>
<td style="text-align: left; padding-left: 10px; width: 25%;">玻璃填充</td>
<td>好的</td>
<td>好的</td>
<td>更好的</td>
<td>最好的</td>
</tr>
<tr>
<td style="text-align: left; padding-left: 10px; width: 25%;">碳填充</td>
<td>好的</td>
<td>好的</td>
<td>更好的</td>
<td>最好的</td>
</tr>
<tr>
<td style="text-align: left; padding-left: 10px; width: 25%;">容量松弛</td>
<td>A.</td>
<td>最好的</td>
<td>A.</td>
<td>更好的</td>
</tr>
</tbody>
</table>
</div>
<p style="font-size: 13px;">（a）体积弛豫可能会干扰 T <sub>g 的</sub>精确性。</p>

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<p>有关更多信息和分析，请阅读完整的应用说明<a href="https://www.tainstruments.com/applications-notes/exploring-the-sensitivity-of-thermal-analysis-techniques-to-the-glass-transition-ta082/">《探索热分析技术对玻璃化转变的敏感性》</a> 。我们的免费<a href="https://www.tainstruments.com/thermal-analysis-selection-guide-download/?lang=zh-hant">热分析选型指南</a>中提供了更详细的分析，介绍了哪些热分析仪器适合特定的应用。</p>
</div>

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</div></div></div><div class="wpb_column vc_column_container vc_col-sm-2"><div class="vc_column-inner"><div class="wpb_wrapper"></div></div></div></div></div></div></div></div><div class="vc_row wpb_row vc_row-fluid dt-default" style="margin-top: 0px;margin-bottom: 0px"><div class="wpb_column vc_column_container vc_col-sm-2"><div class="vc_column-inner"><div class="wpb_wrapper"></div></div></div><div class="wpb_column vc_column_container vc_col-sm-8"><div class="vc_column-inner"><div class="wpb_wrapper">
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			<h2>其他资源</h2>

		</div>
	</div>
<div class="standard-arrow list-divider bullet-top"><ul>
<li>应用说明 – <a href="https://www.tainstruments.com/applications-notes/measurement-of-glass-transition-temperatures-by-dynamic-mechanical-analysis-and-rheology/">利用动态热机械分析（DMA）和流变学测量玻璃化转变温度</a></li>
<li>应用说明 – <a href="hhttps://www.tainstruments.com/pdf/literature/TA433.pdf">利用调制DSC® (MDSC®) 分离焓松弛与玻璃化转变</a></li>
<li>技术提示 – <a href="https://www.tainstruments.com/glass-transitions-and-melt-peaks-trios-discovery-dsc/?lang=zh-hans">玻璃化转变与熔融峰 &#8211; TRIOS &#8211; Discovery DSC</a></li>
<li>选型指南 – <a href="https://www.tainstruments.com/thermal-analysis-selection-guide-download/?lang=zh-hant">热分析选型指南</a></li>
<li>网络研讨会 – <a href="https://www.tainstruments.com/thermal-characterization-of-advanced-materials-for-aerospace/?lang=zh-hant">航空航天先进材料的热学表征</a></li>
</ul>
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</div><p>The post <a href="https://www.tainstruments.com.cn/when-to-measure-glass-transition-temperature-tg-on-dsc-tma-or-dma-blog/">何时使用DSC、TMA或DMA测量玻璃化转变温度(Tg)。</a> first appeared on <a href="https://www.tainstruments.com.cn">TA仪器</a>.</p>]]></content:encoded>
					
		
		
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