摘要
为了分析一种导电胶的成分,利用热分析仪采用一次投样两次测试的方法,对导电胶进行DSC-TGA测试分析。通过对两次DSC-TGA测试曲线的分析、比对、计算及样品感观鉴别,排除有机物的干扰,半定量判定样品的化学成分及用量。得出此胶由无机物及有机物组成,其配比如下:二乙二醇甲醚约20%,乙基纤维素及其它未知有机物约1%,铝粉约40%,银粉约20%,低熔点玻璃粉及其它未知无机物约20%。此工作为利用热分析简便、快捷分析胶黏剂组分提供了一条新思路。
In order to analyze the compositions of a conductive paste, the sample was tested twice by the DSC-TGA thermal analysis in the thermal analysis instrument. The two DSC-TGA curves were analyzed, calculated and contrasted. The second DSC-TGA curves gave further information with the organic matter was burned down in the first test. The semi-quantitative compositions of the sample were got. It is found that the conductive paste contains organic and inorganic matter, and the approximate compositions are di-ethylene glycol mono-methyl ether is 20%, ethyl cellulose and other unknown organic matters are 1%, aluminum powder is 40%, silver powder is 20% and the glass powder and other unknown inorganic matters are 20%.
出处
《化学与粘合》
CAS
2009年第3期33-35,47,共4页
Chemistry and Adhesion
关键词
热分析
胶黏剂
组分
分析
Thermal analysis
adhesive
compositions
analysis
