防老剂在氢化丁腈橡胶复合材料中的应用研究  

Investigation of application of antioxidants in HNBR rubber composites

作　　者：田帅承 王增林[2] 张福涛[3] 王冠中[1] 孙宝全[3] 谷开昭[3] 李再峰[1] 

机构地区：[1]青岛科技大学生态化工国家重点实验室培育基地,山东青岛266042 [2]中国石化胜利石油管理局,山东东营257001 [3]中国石化胜利油田采油工艺研究院,山东东营257000

出　　处：《弹性体》2015年第2期17-20,共4页China Elastomerics

基　　金：山东省自然科学基金(ZR2013EMM007);青岛市科技计划基础研究项目(13-1-4-147-jch);中石化科技攻关计划项目(P12119)资助

摘　　要：研究优化了防老剂2,2,4-三甲基-1,2-二氢化喹啉聚合物(RD)4,4′-双(α,α′-二甲基苄基)二苯胺(Nargard 445)及Nargard 445与2-疏基苯并咪唑锌盐(MBZ)组合物对氢化丁腈橡胶(HNBR)胶料硫化特性和力学性能的影响,详细讨论了防老剂Nargard 445用量对HNBR胶料性能的影响。结果表明,防老剂种类对HNBR复合材料的硬度影响较小。经过150℃×72h老化后,防老剂Nargard 445单独使用时拉伸强度最高,而防老剂Nargard 445/防老剂MBZ并用的胶料拉伸强度最低。随防老剂Nargard 445用量的增加,胶料的门尼粘度和撕裂强度降低,当防老剂Nargard 445用量为1.5份时,HNBR复合材料表现出最优的拉伸强度,实验范围内防老剂Nargard 445用量的增加对过氧化物的交联效率影响不大,表现为玻璃化转变温度Tg无变化,Nargard 445是HNBR过氧化物硫化体系中较为适合的防老剂。Effect of antioxidant types on vulcanization characteristics and the mechanical properties of HNBR rubber composites was investigated,and the effect of Nargard 445 antioxidant dosage on the properties of HNBR rubber composites was discussed in detail.The results showed that antioxidant type made little effect on the shore A hardness of vulcanizates.After aged at 150℃for 72 h,the vulcanizate employing Nargard 445 only showed the best performanc,however,the vulcanizate which employed the mixture of Nargard 445 and MBZ as antioxidant showed the lowest tensile strength.With an increase in the content of Nargard 445,mooney viscosity and tear strength decreased,and the HNBR rubber composite showed the highest tensile strength when the content of Nargard 445 was 1.5phr.In the scope of the experiment,the content of Nargard 445 had little effect on the crosslink efficient,and no change of Tgfor the HNBR rubber composites was observed.The Nargard 445 antioxidant is suitable in the peroxide vulcanization system for HNBR.

关 键 词：HNBR 防老剂 玻璃化转变温度Tg 性能 

分 类 号：TQ333.7[化学工程—橡胶工业]