摘要
用DSC与不平衡直流电桥联用方法研究了碳黑-树脂掺合型导电涂料组成对固化过程各特征温度、电阻值以及反应热等变化规律,并用标准试样测定其电阻率与平均电阻温度系数,讨论了此类涂料在固化中碳微粒的微观结构,为工艺参数的选择提供必要的依据。
Application of Differential Scanning Calorimetry and DC resistance bridge methods to the study of the Conductive Coating of Carbon black-resin was studied. The objective of work is to study the influence of components of coating on the characteristic temperatures, enthalpy change of cure reaction from DSC curve peaks and resistivity, temperature coefficient of resistance by using standard coating samples. These results are interpreted by model of continual net chains of carbon particles and process of resin cure and also supply necessary evidence for the selection of technical parameters.
关键词
导电涂料
碳黑
电桥
酚醛树脂
phenol-aldehyde resins
thermal analysis
conductive coating
carbon-black
resistivity
