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。
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.
作者
王杰
韩吉彬
吴卫东
李晖
李军
蒋洪石
WANG Jie;HAN Jibin;WU Weidong;LI Hui;LI Jun;JIANG Hongshi(Department of Applied Chemistry,Yuncheng University,Yuncheng,Shanxi 044000,China;Key Laboratory of Beijing City on the Preparation and Processing of Novel Polymer Materials,Beijing University of Chemical Technology,Beijing 100029,China)
出处
《中国塑料》
CAS
CSCD
北大核心
2020年第8期24-29,共6页
China Plastics
基金
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)。
关键词
丙烯酸酯橡胶
热塑性硫化胶
微观结构
力学性能
acrylate rubber
thermoplastic vulcanizate
the microsructure
mechanical property
