摘要
本文通过扫描电镜（ＳＥＭ）观察了ＰＶＣ／ＭＢＳ共混物银纹的发展和冲击断面形貌，并测定了银纹体的密度变化。采用光散射法（ＷＡＸＳ）分析银纹和剪切带比例。合成不同玻璃化温度的ＭＢＳ考察它对ＰＶＣ增韧的影响，进行有关ＭＢＳ对ＰＶＣ增韧机理的探讨。
The entire procedures of the crazing induction-formation-destroy of the PVC/MBS mixtures under stretching stress were observed by SEM, and it was illustrated by the density determination and inmer structure of the crazing that the material had been left 'empty '. The materials change from brittle to tenacious rupture with the MBS contents in the mixtures and it was indicated that the MBS has great entoughness effect. The ratio of the crazing to the shear ribbon was analysed by WAXS.MBS with various T_g were synthesised and the relationship between T_g and its entoughness on PVC was investigated, It was proved that the T_g of the MBS has great effect on the entoughnes.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1994年第4期102-106,共5页
Polymer Materials Science & Engineering
