| Effect of ETU on Crosslinking of PVC and PVC/ENR Blend |
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| DOI： |
| Key Words: ETU；PVC；ENR；crosslink |
| Author Name | Affiliation | | 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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