硅橡胶发泡材料制备工艺对其性能的影响规律探究  

Effect of Preparation Technology of Porous Silicone Rubber Material on Its Properties

作　　者：邵雯[1] 庞青涛[2,3] 鲁杰 邵水源[2] 孙伟镇[2] Shao Wen;Pang Qingtao;Lu Jie;Shao Shuiyuan;Sun Weizhen(The First Affiliated Hospital of Xi＇ an Jiaotong University,Shanxi Xi＇ an 710061;College of Materials Science and Engineering,Xi＇an University of Science and Technology,Shanxi Xi＇an 710054;Shaanxi Coal and Chemical Industry New Energy Group Co.,Ltd,Shanxi Xi＇an 710100)

机构地区：[1]西安交通大学第一附属医院,陕西西安710061 [2]西安科技大学材料学院,陕西西安710054 [3]陕西煤业化工新型能源有限公司,陕西西安710100

出　　处：《化工时刊》2018年第5期11-15,共5页Chemical Industry Times

摘　　要：以甲基乙烯基硅橡胶为基体,采用模压成型的方式制备硅橡胶发泡材料。通过一系列的性能测试与结构表征,分析硫化压力、硫化温度、硫化保压时间及放压速率四种硫化工艺对硅橡胶发泡材料性能的影响。结果表明:硫化压力为10 MPa,一段硫化温度130℃、二段硫化温度150℃,硫化保压时间15 s,放压速率1 MPa/s时制备的硅橡胶发泡材料制品性能最优,其表面平整,制品内部泡孔均匀且致密,断裂伸长率360.14%、拉伸强度0.63 MPa,热性能优异。Base on the methyl vinyl silicone rubber as the matrix,the porous silicone rubber material was prepared by compression molding method. By a series of performance testing and structure characterization,the effect of vulcanization process,such as curing pressure,curing temperature,curing pressure holding time and pressure release rate,on the properties of silicone rubber foam was analyzed. The results showed that when the curing pressure was 10 MPa,the first curing temperature was 130℃,the secondary vulcanization temperature was 150℃,curing pressure holding time was 15 s,pressure release rate was 1 MPa/s,the prepared silicone rubber foam materials＇ s performance was optimal. Its surface was smooth,products internal bubble hole was compact and uniform,elongation at break was360. 14%,tensile strength was 0. 63 MPa,and had an excellent thermal performance.

关 键 词：甲基乙烯基硅橡胶 多孔材料 硫化温度 硫化压力 硫化时间 

分 类 号：TQ333.93[化学工程—橡胶工业]