摘要
采用DSC等温法研究了线型酚醛树脂/低密度聚乙烯共混体系固化过程动力学。并采用自催化形成的动力学方程进行数学处理,得到了相应的动力学参数。结果表明,不同共混比的体系具有相近的固化反应表观活化能(约110～125kJ/mol)和相近的反应级数m,n(约0.5～0.6级)。聚乙烯组分的存在影响了固化过程的表观频率因子。
In this article, the kinetics of curing reaction for phenolic resin-LDPE blending system has been studied by static DSC method. It has been found that different systems with different blending ratios have the same activation energy approximately (about 110～125 kJ/mol), and the same reaction order (about 0.5～0.6). In addition, the blending ratio has influence on the frequency factor of the kinetics equation.
关键词
酚醛树脂
聚乙烯
共混
固化
phenolic resin, low density polyethlene, static curing reaction, activation energy, reaction kinetics, frequency factor.
