弹性体及无机粒子协同增韧PVC研究

Study on Synergistic Toughening PVC with Elastomer and Inorganic Particles

利用甲基丙烯酸甲酯-丁二烯-苯乙烯共聚物(MBS)、氯化聚乙烯(CPE)及碳酸钙(CaCO3)对聚氯乙烯(PVC)进行协同增韧改性。研究表明,固定MBS用量,随着CaCO3用量的增加,拉伸强度及冲击强度呈先上升后下降趋势,而硬度变化不大;固定CPE用量,随着CaCO3用量的增加,拉伸强度呈下降趋势,冲击强度呈上升趋势,而硬度基本保持不变。

MBS, CPE and CaCO3 were used to toughen polyvinyl chloride （PVC） cooperatively. It was showed that with the increase of the amount of CaCO3 the tensile strength and impact strength of PVC toughened with MBS and CaCO3 increased and then decreased and hardness unchanged. It was also showed that with the increase of the amount of CaCO3 the tensile strength of PVC decreased, impact strength in-creased and hardness unchanged.