中国塑料 ›› 2020, Vol. 34 ›› Issue (8): 24-29.DOI: 10.19491/j.issn.1001-9278.2020.08.004

• 材料与性能 • 上一篇    下一篇

硫化和增塑对ACM/PP类 TPV微观结构和性能的影响

王杰1(), 韩吉彬1, 吴卫东2, 李晖1, 李军1, 蒋洪石1   

  1. 1.运城学院应用化学系,山西 运城,044000
    2.北京化工大学新型高分子材料制备与加工重点实验室, 北京 100029
  • 收稿日期:2020-02-24 出版日期:2020-08-26 发布日期:2020-08-26
  • 基金资助:
    山西省重点研发计划项目(201903D121105);国家自然基金项目(U1810110);运城学院科研项目(YQ?2019025)

Effects of Vulcanization and Plasticization on Microstructure and Properties of ACM/PP Thermoplastic Vulcanizates

Jie WANG1(), Jibin HAN1, Weidong WU2, Hui LI1, Jun LI1, Hongshi JIANG1   

  1. 1.Department of Applied Chemistry, Yuncheng University, Yuncheng, Shanxi 044000, China
    2.Key Laboratory of Beijing City on the Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2020-02-24 Online:2020-08-26 Published:2020-08-26
  • Contact: Jie WANG E-mail:jwang1998@163.com

摘要:

选用马来酸酐接枝聚丙烯(MP)作为丙烯酸酯橡胶(ACM)/聚丙烯(PP)热塑性硫化橡胶(TPV)的相容剂,研究了三巯基均三嗪(TCY)和过氧化二异丙苯(DCP)不同硫化体系和硫化剂含量,以及邻苯二甲酸二辛酯(DOP)增塑剂,对TPV微观结构和物理性能的影响。结果表明,DCP比TCY硫化体系的作用效果好,当采用2份(质量份,下同)DCP时,制备的TPV微观相态结构和拉伸、撕裂性能最佳,压缩永久变形和耐油性良好;增塑剂DOP的加入降低了TPV的肖A硬度,增加了TPV的弹性;当DOP含量为30份时,TPV具有较好的相态结构,在有效降低其硬度的同时,力学性能、耐油性和弹性保持相对较好。

关键词: 丙烯酸酯橡胶, 热塑性硫化胶, 微观结构, 力学性能

Abstract:

Maleic?modified polypropylene was used as a compatibilizer to prepared ACM/PP thermoplastic vulcanizates (TPV), and the effects of trithiocyanuric acid (TCY) and dicumyl peroxide (DCP) as vulcanizaters and dioctyl phthalate (DOP) as a plasticizer on the microstructure and physical properties of TPV were investigated. The results indicated that DCP exhibited a better vulcanizing effect than TCY, and the obtained TPV presented a desired microstructure and phase structure. The TPV achieved the optimum tensile and tear properties when 2 phr of DOC was incorporated, and it also showed the excellent compression set and oil resistance. The introduction of DCP decreased the hardness of TPV but enhanced its elasticity. A fine microstructure and good physical properties and elasticity were achieved for the TPV when 30 phr of DOP was added, and meanwhile the hardness was reduced effectively.

Key words: acrylate rubber, thermoplastic vulcanizate, the microsructure, mechanical property

中图分类号: