摘要
本文讨论了高分子合金中的平均分散粒子径d、粒子间距离与力学性能间的关系,当d小于临界平均分散粒子径d_c(d<d_c)时,冲击强度大,随d的减小,冲击强度进一步提高;当d>d_c时,冲击强度明显下降;在d=d_c附近,高分子合金的冲击强度发生急剧变化;分散相粒子间距离τ及其临界值τ_c对冲击强度的影响与平均分散粒子径的作用相似。同时,本文分析了影响分散形态的因素。
The relationship among average dispersed-phase particle diameter (d), particle distances and mechanical properties of polymer alloys are discussed in this paper. When d is less than d_c, where d_c is critical value of average dispersed-phase particle diameter, the value of impact strength is larger. Impact strength is improved with d decreasing. When d> d_c, impact strength is obviously decreasing. In the areas where d= d_c, impact strength of polymer alloys dramatically changes. The influence of dispersed-phase particles distance and its critical value on impact strength is similar to the effect of average dispersed-phase particle diameter. Meanwhile, some factores affecting dispersed-phase morphology are analyzed.
出处
《中国塑料》
CAS
CSCD
北大核心
1997年第6期14-19,共6页
China Plastics
基金
国家教委基金
关键词
分散粒子径
强度
力学性能
共混
高聚物
Polymer Alloy, Average Dispersed-phase Particle Dimeter, Impact Strength
