PVC／SBR／MBS三元共混合金的研究

Studies on the Polymer Alloys of PVC/SBR/MBS

对ＰＶＣ／ＳＢＲ／ＭＢＳ三元共混合金作了研究．在ＰＶＣ／ＳＢＲ体系中加入ＭＢＳ，ＰＶＣ的冲击强度可提高５．５倍，弯曲强度的保留率在８０％左右．电镜和ＤＤＶ测试表明ＭＢＳ的加入提高了ＳＢＲ对ＰＶＣ的相容性，增强了橡胶对ＰＶＣ的界面粘结力．

his thesis deals with the polymer alloys of PVC/SBR/MBS. By adding MBS into PVC/SBR system, the notch impact strength of PVC was enhanccd to 5.5 times and the bonding strength was remained about 80% of PVC's. It was proved by SEM and DDV that adding MBS into PVC/SBR improved the compatibility between SBR and PVC and increased interphase bounding strength between them.