| Effect of TEPA on Cross-linking of PVC and PVC/NBR Blend |
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| DOI： |
| Key Words: PVC；NBR；blend；TEPA；gel content；heat deformation；curing characteristics |
| Author Name | Affiliation | | Xiao Yong | Shanghai Jiaotong University | | Zhang Ping | Qingdao Institute of Chemical Technology | | Wang Xin | Qingdao Institute of Chemical Technology | | Xian Guijun | Qingdao Institute of Chemical Technology | | Li Peijun | Qingdao Institute of Chemical Technology | | Zhao Shugao | Qingdao Institute of Chemical Technology |
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| Abstract: |
| The effect of tetraethylene pentamine(TEPA)on cross-linking of PVC and PVC/NBR blend was studied in terms of curing characteristics，heat deformation，gel content and physical properties.The results showed that the physical properties and heat deformation of PVC/NBR blend improved when the PVC portion was crosslinked，especially the PVC portion and NBR portion were simutaneously crosslinked；the effect was more significant when the NBR portion was greater(more than 60 parts)，and the heat deformation of the blend increased if the NBR portion was too small；TEPA had a certain inhibitory effect on the sulfur vulcanization of NBR and little effect on the physical properties of the blend. |
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