文章摘要
Effect of ETU on Crosslinking of PVC and PVC/ENR Blend
  
DOI:
Key Words: ETU;PVC;ENR;crosslink
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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Abstract:
      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.
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