TPI/LLDPE新型热塑性弹性体的制备及性能研究  

Preparation of TPI/LLDPE new TPE by dynamic vulcanization

作　　者：葛铁军[1,2,3] 施智超 Ge Tiejun;Shi Zhichao(Plastic Engineering Research Center,Shenyang University of Chemical Technology,Shenyang 110142;Liaoning Polymer Materials Engineering Technology Research Center,Shenyang University of Chemical Technology,Shenyang 110142;Kangping Institute of Plastic Weaving,Shenyang University of Chemical Technology,Shenyang 110142)

机构地区：[1]沈阳化工大学塑料工程研究中心,沈阳110142 [2]沈阳化工大学辽宁省高分子材料工程技术研究中心,沈阳110142 [3]沈阳化大康平塑编研究院,沈阳110142

出　　处：《化工新型材料》2022年第9期94-97,103,共5页New Chemical Materials

基　　金：辽宁省重点研发计划项目(2017304004)。

摘　　要：采用动态硫化手段制备合成杜仲胶(TPI)和线性低密度聚乙烯(LLDPE)的新型热塑性弹性体,制备了不同橡塑比的弹性体,通过动态热机械分析、扫描电镜、门尼黏度仪、转矩流变仪和力学性能测试等手段,探究制备的TPI/LLDPE热塑性弹性体的基本性能。结果表明:当橡塑比为RP/73时,塑料与橡胶的分布形态最理想,而综合性能也较好,拉伸强度为10.06MPa,断裂伸长率为279%,加工门尼黏度为22.61,邵氏硬度D为42,断裂回弹率为80.86%。The dynamic vulcanization was used to prepare new thermoplastic elastomer(TPE)of synthetic gutta percha(TPI)and linear low density polyethylene(LLDPE).By preparing elastomers with different rubber-to-plastic ratios,dynamic thermomechanical analyzer(DMA),scanning electron microscope(SEM),mooney viscometer,torque rheology were used.The basic properties of the prepared TPI/PE were explored.The results shown that when the rubber-to-plastic ratio was RP/73,the distribution of plastic and rubber was the most ideal,and the overall performance was also better.The tensile strength was 10.06 MPa,the elongation at break was 279%,and the processed mooney viscosity was 22.61,the shore hardness D was 42,and fracture rebound rate was 80.86%.

关 键 词：动态硫化 热塑性弹性体 杜仲胶 聚乙烯 

分 类 号：TQ334.2[化学工程—橡胶工业]