摘要
通过引入甲基丙烯酸缩水甘油酯/苯乙烯/过氧化二异丙苯(GMA/St/DCP)体系,对复合阻燃剂氢氧化镁/红磷(MH/RP)阻燃的天然橡胶/线型低密度聚乙烯(NR/LLDPE)热塑性硫化橡胶(TPV)进行"原位"增容,同时研究了"原位"增容改性对阻燃TPV阻燃性能、力学性能、热稳定性和微观形态结构的影响。结果表明:在TPV动态硫化过程中引入GMA/St/DCP(8/4/0.3)体系,明显提高了阻燃剂在聚合物基体中的分散性,增强了阻燃TPV中各组分的界面黏结强度,改善了复合阻燃剂MH/RP(80/8)的协同阻燃效果,从而达到同时提高TPV力学性能和阻燃性能的双重目的。
Glycidyl methacrylate/styrene/dicumyl peroxide（GMA/St/DCP） system, which served as an ＂in situ＂ compatibilizer, was introduced into natural rubber/linear low density polyethylene（NR/LLDPE） thermoplastic vulcanizate（TPV） flame-retarded by magnesium hydroxide（MH） and red phosphorus（RP）. The effect of ＂in situ＂ compatibilization on flame-retardant properties, mechanical properties, thermostability and microstructure of the flame-retardant TPV were investigated. The results show that： by introducing GMA/St/DCP（8/4/0.3） system in the process of dynamic vulcanization, dispersibility of the flame retardants in polymer matrix and interface bond strength among the components of TPV improve obviously, a good synergistic flame-retardant effect of MH/RP（80/8） can be obtained, and mechanical properties and flame-retardant properties of the TPV increase at the same time.
出处
《塑料科技》
CAS
北大核心
2015年第7期25-29,共5页
Plastics Science and Technology
基金
海南省高等学校科学研究项目(Hjkj2012-02)
