石墨烯的用量对合成异戊橡胶力学性能和电性能的影响  

Effect of amount of graphene on mechanical and electrical properties of isoprene rubber

作　　者：白延群 李雪[1] 宋鹏豪 樊文琪 邹楠煊 王筑城 孙悦 路乃群[2] 王存国[1] BAI Yanqun;LI Xue;SONG Penghao;FAN Wenqi;ZOU Nanxuan;WANG Zhucheng;SUN Yue;LU Naiqun;WANG Cunguo(Key Laboratory of Rubber-plastics,Ministry of Education,Shandong Province Key Lab.of Rubber-plastics,Qingdao University of Science and Technology,Qingdao 266042,China;College of Automation and Electronic Engineering,Qingdao University of Science and Technology,Qingdao 266110,China)

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东省橡塑材料与工程重点实验室,山东青岛266042 [2]青岛科技大学自动化与电子工程学院,山东青岛266110

出　　处：《化工科技》2020年第4期23-27,共5页Science & Technology in Chemical Industry

基　　金：国家高端外国专家项目(中组部办公厅字2017-21);山东省教育厅项目(SDYJG19089);山东省潍坊市高层次创新创业人才计划项目(潍办字2013-69)。

摘　　要：通过对不同含量的石墨烯与异戊橡胶混炼和硫化,制备出了石墨烯补强的新型异戊橡胶复合材料,硫化特性测试表明石墨烯能够增大异戊橡胶的硫化程度,且随着石墨烯含量增多,石墨烯对异戊橡胶硫化的促进效果也会增强,但是石墨烯含量的增多也会导致异戊橡胶焦烧时间t10的下降,影响橡胶混炼过程的安全性。经过拉伸强度和撕裂强度等力学性能测试表明,石墨烯的添加能够同时增大异戊橡胶的拉伸强度和撕裂强度,当异戊橡胶中加入0.5~1.0份石墨烯时,异戊橡胶的综合力学性能最好。电性能测试结果表明,加入2.0份石墨烯,异戊橡胶的电导率提高近1000倍,达1.87×10^-7 S/cm,可以制备适应某些领域的抗静电橡胶和导电橡胶。In this paper,a new isoprene rubber composite reinforced by graphene is prepared by mixing and vulcanizing different content of graphene with isoprene rubber.The test of vulcanization characteristics shows that the vulcanization degree of isoprene rubber can be increased by the addition of grapheme.That is to say,with the increase of graphene content,the promotion effect of graphene on vulcanization of isoprene rubber will also be enhanced.However,the increase of graphene content will also lead to the decrease of scorch time of isoprene rubber(t10),which will affect the safety of mixing process for rubbers.The mechanical properties such as tensile strength and tear strength show that the addition of graphene can increase the tensile strength and tear strength of isoprene rubber at the same time.When 0.5~1.0 phr graphene is added to isoprene rubber,the comprehensive mechanical properties of isoprene rubber are the best.The results of electrical properties test show that the conductivity of isoprene rubber increases nearly 1000 times to 1.87×10^-7 S/cm as 2.0 phr of graphene is added,and antistatic rubber and conductive rubber suitable for some fields can be prepared.

关 键 词：石墨烯 橡胶 聚异戊二烯 力学性能 电导率 

分 类 号：TQ336.1[化学工程—橡胶工业] O631[理学—高分子化学]