| 亚乙基硫脲对PVC和PVC/ENR共混物的交联作用 |
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| 引用本文： | 张萍,李培军,范海刚,杨化琴,赵树高.亚乙基硫脲对PVC和PVC/ENR共混物的交联作用[J].橡胶工业,1998,45(11):652-656. |
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| 作者姓名： | 张萍 李培军 范海刚 杨化琴 赵树高 |
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| 作者单位： | 青岛化工学院 |
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| 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１５份，促进剂选择促进剂ＤＭ／ＴＭＴＤ体系为佳。
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| 关 键 词： | 亚乙基硫脲，PVC，环氧化天然橡胶，交联 |
Effect of ETU on Crosslinking of PVC and PVC/ENR Blend |
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| Zhang Ping,Li Peijun,Fan Haigang,Yang Huaqin and Zhao Shugang.Effect of ETU on Crosslinking of PVC and PVC/ENR Blend[J].China Rubber Industry,1998,45(11):652-656. |
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| Authors: | Zhang Ping Li Peijun Fan Haigang Yang Huaqin and Zhao Shugang |
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| Affiliation: | Qingdao Institute of Chemical Technology 266042 |
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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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| Keywords: | ETU PVC ENR crosslink |
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