摘要
介绍了聚酰亚胺 (PI)纳米杂化材料的四种制备方法 :溶胶 -凝胶法、插层法、分散法、相转移分散聚合法。纳米粒子在PI材料中分散性良好。由于纳米粒子本身的特性和纳米粒子改变了PI材料的应力作用点 ,随着SiO2 、AlN等纳米粒子含量增加 ,PI杂化物的玻璃化温度、热分解温度、拉伸强度、断裂伸长率、杨式模量、密度增加 ,线性膨胀系数减少。对介电性能的影响因不同纳米材料而异。
e: The paper reviews some preparative motheds of Polyimide inorganic hybrid material: Sol gel process, Intercalation , Dispersion process and ex situ methods. The T g, T d, tensile strength, Young's modulus and alongation at break of the polymide inorganic hybrid increase and CTE decreases with increasing nanoscale inorganic partle's content due to inorganic partle itself properties and crosslink points of polyimide being changed. The dielectric properties depend on the inorganic materials.
出处
《功能高分子学报》
CAS
CSCD
2002年第2期207-213,218,共8页
Journal of Functional Polymers
