MXene对动态硫化型聚丙烯/三元乙丙橡胶共混体系性能的影响  

Effcet of MXene on Properties of Dynamically Vulcanized PP/EPDM Blends

作　　者：李超群[1] 王德灵 王江[2] LI Chao-qun;WANG De-ling;WANG Jiang(Key Laboratory of Advanced Materials for Tropical Island Resources,Ministry of Education,College of Materials Science and Engineering,Hainan University,Haikou 570228,China;College of Science,Hainan University,Haikou 570228,China)

机构地区：[1]海南大学材料科学与工程学院热带岛屿资源先进材料教育部重点实验室,海南海口570228 [2]海南大学理学院,海南海口570228

出　　处：《塑料科技》2023年第4期11-15,共5页Plastics Science and Technology

基　　金：海南省自然科学基金(2019RC051;420RC526);海口市重点科技计划项目(2021-031)。

摘　　要：为了研究MXene纳米材料改性动态硫化型聚丙烯(PP)/三元乙丙橡胶(EPDM)共混体系的结构及相关性能,采用母料法制备大分子包覆的MXene,通过熔融混合制备MXene/PP/EPDM复合体系。结果表明:剥离的MXene片层在聚合物基体中分散均匀。MXene质量分数为0.75%时,体系的力学性能最好。由于MXene具有较大的表面积且在基体中分散良好,加入少量MXene可提高体系的热稳定性,初始热分解温度和最大热失重温度分别提高26℃和20℃;同时复合体系具有良好的绝缘性能。制备的MXene/PP/EPDM复合材料在电线电缆和电气绝缘件领域具有潜在应用。In order to study the structure and related properties of dynamic vulcanized polypropylene(PP)/ethylenepropylene-diene monomer(EPDM)blends modified by MXene nanomaterials,macromolecular coated MXene was prepared by masterbatch method,and MXene/PP/EPDM composites were prepared by melt blending.The results show that the exfoliated MXene sheets are uniformly dispersed in the polymer matrix.When the mass fraction of MXene is 0.75%,the mechanical properties of the system are the best.Because MXene has a large surface area and is well dispersed in the matrix,the addition of a small amount of MXene can improve the thermal stability of the system,and the initial thermal decomposition temperature and the maximum thermal weight loss temperature are increased by 26℃and 20℃,respectively.At the same time,the composite system has good insulation performance.The prepared MXene/PP/EPDM composites have potential applications in the field of wire and cable and electrical insulation.

关 键 词：MXene纳米材料 PP/EPDM共混物 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]