文章摘要
亚乙基硫脲对PVC和PVC/ENR共混物的交联作用
Effect of ETU on Crosslinking of PVC and PVC/ENR Blend
  
DOI：
中文关键词: 亚乙基硫脲  PVC  环氧化天然橡胶  交联
英文关键词: ETU  PVC  ENR  crosslink
基金项目:山东省自然科学基金资助项目
作者单位
张萍 青岛化工学院 
李培军 青岛化工学院 
范海刚 青岛化工学院 
杨化琴 青岛化工学院 
赵树高 青岛化工学院 
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中文摘要:
      从交联速率、压缩永久变形、凝胶质量分数、强伸性能和耐热性能等方面考察了亚乙基硫脲(ETU)和ETU/硫黄对PVC及其与环氧化天然橡胶(ENR)共混物的交联作用。结果表明，ETU和ETU/硫黄对PVC及其与ENR的共混物有明显的交联作用；交联后共混物的物理性能和耐热性能均有较大提高；适当增大ENR用量，有利于提高共混物的热变形性能；PVC/ENR的共混比为70/30时，硫黄的最佳用量为1.5份，促进剂选择促进剂DM/TMTD体系为佳。
英文摘要:
      The effect of ethylene thiourea(ETU)and ETU/sulfur on crosslinking of PVC and PVC/ENR blend was studied in terms of crosslinking rate，compression set，gel content，tensile properties and heat resistance etc.It was found that ETU or ETU/sulfur were the suitable crosslinking systems for PVC and PVC/ENR blend；the physical properties and the heat resistance of crosslinked blend improved significantly；the proper increase of ENR proportion was benificial to the thermal stability of PVC/ENR blend；when the blending ratio of PVC/ENR was 70/30，the optimum level of sulfur was 1.5 phr，and DM/TMTD was the best accelerating system.
Author NameAffiliation
Zhang Ping Qingdao Institute of Chemical Technology 
Li Peijun Qingdao Institute of Chemical Technology 
Fan Haigang Qingdao Institute of Chemical Technology 
Yang Huaqin Qingdao Institute of Chemical Technology 
Zhao Shugang Qingdao Institute of Chemical Technology 
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