X—52~#活性环氧树脂稀释剂的合成及性能研究

活性环氧树脂稀释剂x—52~#是一种原料易得、成本低、毒性小,质量稳定、性能优越的新品种。本文详述了该稀释剂的合成方法,文章涉及原料选择,工艺确定,实验室小试、中试,工业生产,产品性能特点及其应用研究等。     

Modified Polyimides Based on Epoxy Resin (Part 2)

Abstract

A 2-furanyl oxy derivative of a novolac epoxy resin (FNE) was prepared using furfuryl alcohol (from agricultural waste) and characterised. The Diels-Alder polymerisation of FNE with various bismaleimides was carried out in solution as well as in bulk. The resultant novolac epoxy resin based polyimides were characterised by elemental analyses, IR spectral studies, and thermogravimetry. The ‘in-situ’ glass reinforced composites of FNE-bismaleimides were prepared and characterised by chemical resistance and mechanical properties.     

聚氨酯脲增强增韧环氧树脂性能的研究

用原位多相聚合技术合成了聚氨酯脲 /环氧树脂互穿网络聚合物 (IPN) ,得到了环氧树脂准分子复合材料 ,测定了产物的力学性能和热性能 ,探讨了聚醚分子质量和聚氨酯脲加入量对环氧树脂增强增韧过程的影响 ,并对反应体系的活性进行了考察。     

聚氨酯脲增强增韧环氧树脂的研究

用原位多相聚合法合成了聚氨酯脲／环氧树脂互穿网络聚合产物（ＩＰＮ）,测定了产物的力学性能和热性能,探讨了ＩＰＮ中聚氨酯脲含量对环氧树脂增韧过程的影响。