摘要
用二种结构不同的双马来酰亚胺热熔共混,制得了一种熔点低和溶解性能较好的新的双马来酰亚胺树脂。其复合材料在250℃有高的强度保持率,而且有良好的湿热稳定性。
A new modified bismaleimide resin,designated LL-45-1 was obtained by hot melting two different kinds of hismaleimide,one is a commerial product,4,4'bismaleimidediphenylmethane,the other is a substituted bisma- leimide.LL-45-1 resin has a low melting point(about 55℃),which is far below the polymerization temperature,though it maintains the heat resistance of polybismaleimide(decomposition temperature>400℃).Hence it is a heat resistant rcsin of better property.The composite made from LL-45-1 resin exhibits high Strength at 250℃ as well,as good thermalmoisture sta- bility.It shows that LL-45-1 resin is a hopeful matrix resin candidate for high temperature composites.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
1989年第3期16-19,90-91,共6页
Acta Materiae Compositae Sinica
