Comparisson of Tg values for a graphite epoxy composite by differential scanning calorimetry (DSC), thermomechanical analysis (TMA), and dynamic mechanical analysis (DMA)
Comparisson of Tg values for a graphite epoxy composite by differential scanning calorimetry (DSC), thermomechanical analysis (TMA), and dynamic mechanical analysis (DMA)
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通过差示扫描量热法 (DSC)、热机械分析 (TMA) 和动态机械分析 (DMA) 比较石墨环氧复合材料的 Tg 值
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
J. Rogers
中科院分区：
文献类型：
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作者：
H. R. O'neal;S. Welch;S. Guilford;G. Curran;K. Menard;J. Rogers
采用热机械分析（TMA）、差示扫描量热法（DSC）和动态力学分析（DMA）研究了试样环境和测试方法对石墨-环氧复合材料表观玻璃化转变温度（Tg）的影响。在受控条件下制备样品，并在试验前储存在受控环境中。试样进行了检查TMA的渗透，弯曲，热膨胀，以及DSC和DMA的弯曲和扭转梁。测得的Tg被认为是受水分含量，所使用的仪器，和所选择的测试方法。讨论了Tg值比较的建议
The effect of sample environment and test method on the apparent T g of graphite-epoxy composites was investigated by thermomechanical analysis (TMA), differential scanning calorimetry (DSC), and dynamic mechanical analysis (DMA). Samples were prepared under controlled conditions and stored in a controlled environment before testing. Specimens were examined on the TMA in penetration, flexure, and thermal expansion, as well by DSC and DMA in both flexure and torsion beam. The measured T g was found to be affected by moisture content, the instrument used, and the test method selected. Recommendations for the comparison of T g values are discussed