原位生成丙烯酸锂改性丁腈橡胶抗静电性能的研究  

Study on Antistatic Properties of Nitrile Rubber Modified by in situ Prepared Lithium Acrylate

作　　者：张倩[1] 任文坛[1] 张勇[1] 张隐西[1] 

机构地区：[1]上海交通大学高分子材料研究所,上海200240

出　　处：《特种橡胶制品》2008年第5期1-4,共4页Special Purpose Rubber Products

基　　金：国家自然科学基金资助项目(50773036)

摘　　要：用丁腈橡胶(NBR)作基体,分别研究了在NBR中原位生成丙烯酸锂(LiAA)及在NBR/LiAA中添加氯化镧(LaCl3)后,硫化胶体系电学性能的变化。结果表明,在NBR中原位生成LiAA,可降低NBR的体积电阻率,使其由绝缘材料转变为抗静电材料;进一步在NBR/LiAA中添加LaCl3,体系体积电阻率继续降低,在LaCl3用量为20份左右时,体系体积电阻率有一最低值并趋于稳定。The in situ preparation of lithium acrylate （LiAA） in nitrile rubber （NBR） and the effect of lanthanum acrylate （LaCl3） on the electrical resistivity of NBR/LiAA composites were investigated. The results indicated that the in situ prepared LiAA could decrease the volume electrical resistivity and changed the composites from insulated to antistatic; the volume electrical resistivity continued to decrease after LaCl3 was added to NBR/LiAA composites. The volume electrical resistivity reached the minimum when about 20 phr LaCl3 was added.

关 键 词：丁腈橡胶 丙烯酸锂 氯化镧 体积电阻率 抗静电材料 

分 类 号：TQ333.7[化学工程—橡胶工业]