环氧树脂潜伏性固化促进剂的研究——Ⅱ.促进剂对固化物性能的影响  

STUDY ON THE LATENT ACCELERATOR FOR EPOXY RESIN Ⅱ.EFFECT OF THE ACCELERATOR ON PHYSICAL PROPERTIES OF CURED RESIN

作　　者：宋永贤[1] 彭新生[1] 李荣先[1] 

机构地区：[1]中国科学院长春应用化学研究所,长春130022

出　　处：《应用化学》1990年第3期29-32,共4页Chinese Journal of Applied Chemistry

基　　金：中国科学院科学基金

摘　　要：对双酚A环氧树脂/桐油酸酐/乙酰丙酮钕体系的热固化及其产物性能,用热分析,介电损耗和动态力学等手段进行了研究。结果表明,乙酰丙酮钕除对固化具有潜伏性促进作用外,尚可使固化物的物理性能明显提高。The effect of a novel latent accelerator, neodymium acetylacetonate(AD), on the proper-ties of cured resin for bisphenol A epoxy resin(E-44)/Tung oil acid anhydride(TOA)systemis reported in this paper. Presence of AD decreased the gel time at 150℃ and increased theactivation energy with increasing amount of AD. The E-44/TOA/AD system displayed bet-ter storage stability at 40℃ than the control. The incorporation of AD into the epoxy resin caused an increase in the T_g values anddepressed the dielectric loss Tano at 130℃.155℃ of Nd ion-containin g epoxy. The mechan-ical properties were raised as compared with the control. It might be due to the specialelectron structure of rare-earth elements which makes the epoxy system having higher T_gowing to the higher crosslink density or more homogenoous network structure.

关 键 词：环氧树脂 潜伏性促进剂 物理性能 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]