第 43 卷第 6 期Vol. 43 No. 6
2013 年 12 月Dec 2013

所属栏目:功能材料

配方因素对氯醚橡胶老化性能的影响研究
谭雅婷1,徐建双2,熊 晨2,王 曦1,苏胜培1* (1. 湖南师范大学 化学化工学院 资源精细化与先进材料湖南省高校重点实验室,湖南 长沙 410081; 2. 深圳市博富隆新材料科技有限公司,广东 深圳 518118)
摘 要:研究了吸酸剂氧化镁用量、填料配比和防老剂配比对共聚型氯醚橡胶(ECO)力学性能和老化性能的影响。结果表明,氧化镁用量为10 phr、白炭黑用量为30 phr、炭黑用量为10 phr、防老剂N,N-二丁基二硫代氨基甲酸镍(NBC)用量为2 phr时,胶料综合性能最好。拉伸强度为13.9 MPa,断裂伸长率为644%,100%定伸应力为2.6 MPa,硬度为71。125℃老化1 000 h后,拉伸强度保持率为100%,断裂伸长率保持率为26.4%。
关键词:氯醚橡胶;防老剂;吸酸剂;填料;老化性能
中图分类号:TQ333  文献标识码:A  文章编号:1009-9212(2013)06-0063-06
Study on Effects of Formula to Thermo-oxidative Aging Properties of Epichlorohydrin Rubber
TAN Ya-ting1,XU Jian-shuang2,XIONG Chen2,WANG Xi1,SU Sheng-pei1* (1. College of Chemistry and Chemical Engineering,Key Lab of Sustainable Resources Processing and Advanced Materials,Hunan Normal University,Changsha 410081,China;2. Shenzhen Prosperous New Materials Co.,Ltd.,Shenzhen 518118,China)
Abstract:Effects of the loadings of acid acceptor(magnesium oxide),the proportion of fillers and the proportion of anti-aging agents on the mechanical properties and thermo-oxidative aging properties of epichlorohydrin rubber have been evaluated. The experimental results indicated that when the loadings of MgO,white carbon black,carbon black,and nickelous N,N-dibutyldithiocarbamate were 10 phr,30 phr,10 phr and 2 phr respectively,the over-all properties of rubber were the best. The tensile strength of rubber composite was 13.9 MPa;the elongation at break was 644%;the 100% modulus was 2.6 MPa and the hardness was 71. After aging at 125℃ for 1 000 h,the percent retention of tensile strength was 100% and the percent retention of elongation at break was 26.4%.
Key words:epichlorohydrin rubber;anti-aging agent;acid acceptor;filler;thermo-oxidative aging property
基金项目: 湖南师范大学潇湘学者启动资金资助课题(化050613),深圳市战略新兴产业发展专项资金(CXZZ20120830161412161)。
作者简介:谭雅婷(1989-),女,湖南津市人,硕士研究生,研究方向:高分子复合材料。(E-mail:tanyating413@gmail.com)
联 系 人:苏胜培,教授,博士生导师,研究方向:高分子复合材料。(E-mail:sushengpei@gmail.com)
收稿日期: 2013-12-1