不同硫化体系对医用异戊橡胶性能的影响  

Effects of different vulcanization systems on properties of medical isoprene rubber

作　　者：李安琦 袁莹欣 高强民 陆鹏林 徐天怡 观姗姗[1] LI An-qi;YUAN Ying-xin;GAO Qiang-min;LU Peng-lin;XU Tian-yi;GUAN Shan-shan(School of Polymer Science and Engineering/Key Laboratory of Rubber-Plastics of Ministry of Education,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学高分子科学与工程学院/橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《合成橡胶工业》2025年第2期133-138,共6页China Synthetic Rubber Industry

摘　　要：从硫化体系角度出发,探讨了过氧化物硫化体系、硫黄硫化体系和过氧化物/硫黄复合硫化体系对医用异戊橡胶性能的影响。结果表明,与硫黄硫化体系和过氧化物硫化体系相比,过氧化物/硫黄复合硫化体系橡胶的转矩差有所增大、交联密度上升,物理机械性能也得到了较好的改善,说明过氧化物与硫黄对异戊橡胶产生了协同增强的效果;随着过氧化物与硫黄质量比的增大,硫化胶的弹性提高、压缩永久变形减小,并且当过氧化物与硫黄的质量比为5/1时硫化胶的综合性能较为优异;经过化学检测,所有配方的硫化胶均满足医用材料的使用要求。From the perspective of vulcanization system,the effects of peroxide vulcanization system,sulfur vulcanization system and peroxide/sulfur complex vulcanization system on the properties of medical isoprene rubber were discussed.The results showed that the torque difference of rubbers in the peroxide/sulfur composite vulcanization system increased,the crosslinking density increased,and the physical and mechanical properties were also improved compared with those of rubbers in the sulfur vulcanization system and the peroxide vulcanization system,indicating that peroxide and sulfur had a synergistic enhancement effect on isoprene rubber.With the increase of the mass ratio of peroxide to sulfur,the elasticity of the vulcanizate increased and the compression permanent set decreased.When the mass ratio of peroxide to sulfur was 5/1,the comprehensive performance of the vulcanizate was excellent.After chemical testing,all vulcanizates with different formulas met the requirements of medical materials.

关 键 词：异戊橡胶 医用橡胶 硫化体系 物理机械性能 滞后损失 压缩永久变形 化学检测 

分 类 号：TQ336.6[化学工程—橡胶工业]