| 用DSC测量复铜板玻璃化转变区的比热容 |
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| 引用本文： | 曾春莲,蔡涛,黎莹,杨微. 用DSC测量复铜板玻璃化转变区的比热容[J]. 广州化工, 2010, 38(12): 204-206 |
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| 作者姓名： | 曾春莲 蔡涛 黎莹 杨微 |
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| 作者单位： | 中山大学化学与化学工程学院,广东广州510275 |
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| 摘 要： | 在100℃~200℃的温度范围,用蓝宝石校正DSC测量比热容的系统误差,得到校正系数K(T)=-6×10-7T2+6×10-5T+0.9922。通过测量α-Al2O3的比热容来验证准确性,结果表明:用校正公式Cpmd=K(T)Cpms,对α-Al2O3的比热容测量值Cpms进行校正,校正值Cpmd与文献值Cpstd非常吻合,相对误差小于0.67%。在此基础上测定复铜板玻璃化转变区的比热容,其结果与预期值相符。
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| 关 键 词： | DSC 比热容 蓝宝石 三氧化二铝 相对误差 复铜板 |
Measurement of Specific Heat Capacity of Copper Clad Laminate within Glass Transition Range by DSC |
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| ZENG Chun-lian,CAI Tao,LI Ying,YANG Wei. Measurement of Specific Heat Capacity of Copper Clad Laminate within Glass Transition Range by DSC[J]. GuangZhou Chemical Industry and Technology, 2010, 38(12): 204-206 |
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| Authors: | ZENG Chun-lian CAI Tao LI Ying YANG Wei |
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| Affiliation: | (School of Chemistry and Chemical Engineering,Sun Yat-sen University,Guangdong Guangzhou 510275,China) |
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| Abstract: | Within the temperature range of 100℃-200℃,the systematic error of measured specific heat capacity by differential scanning calorimetry（DSC） was calibrated with sapphire,and a correction coefficient K（T） was obtained,K（T）=-6×10^-7T2＋6×10^-5T＋0.9922.Additionally,the emendated values（Cp^md） of α-Al2O3,obtained by the formula Cp^md=K（T）Cp^ms,agreed well with the literature values（Cp^std）,and the relative error was below 0.67%.On this basis,the specific heat capacity of copper clad laminate within glass transition zoom was measured,and the results were in accord with the expected values. |
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| Keywords: | differential scanning calorimetry（DSC） specific heat capacity（Cp） sapphire α-Al2O3 relative error copper clad laminate（CCL） |
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