| 丙烯酸熔融接枝LLDPE的研究 |
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| 引用本文： | 刘俊龙,何亮,刘克勇,刘素花,董国嗣,张艳玲.丙烯酸熔融接枝LLDPE的研究[J].大连工业大学学报,2009,28(1). |
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| 作者姓名： | 刘俊龙 何亮 刘克勇 刘素花 董国嗣 张艳玲 |
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| 作者单位： | 大连工业大学,化工与材料学院,辽宁,大连,116034 |
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| 摘 要： | 以过氧化二异丙苯(DCP)为引发剂,在单螺杆挤出机中进行丙烯酸(AA)熔融接枝线性低密度聚乙烯(LLDPE)的研究,考察了引发剂用量、单体用量、温度、螺杆转速及复配引发剂对LLDPE接枝率的影响。研究表明,适当的反应条件接枝率可达0.45%,反应温度180℃左右为宜,复配引发剂用量对接枝率有较大影响,m(DCP)∶m(BPO)=3∶1时接枝率最高,DCP用量不宜过高以免引起严重的交联反应。
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| 关 键 词： | 线性低密度聚乙烯 丙烯酸 熔融接枝 |
Melt grafting of LLDPE with acrylic acid |
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| LIU Jun-long,HE Liang,LIU Ke-yong,LIU Su-hua,DONG Guo-si,ZHANG Yan-ling.Melt grafting of LLDPE with acrylic acid[J].Journal of Dalian Dalian Polytechnic University,2009,28(1). |
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| Authors: | LIU Jun-long HE Liang LIU Ke-yong LIU Su-hua DONG Guo-si ZHANG Yan-ling |
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| Abstract: | The melt grafting of acrylic acid(AA) onto linear low-density polyethylene(LLDPE) was initiated by dicumyl peroxide(DCP) in a single screw extruder.The concentration of initiator and acrylic acid,temperature and rotation speed were determined.The maximal graft rate can be up to 0.45% and the optimum temperature is around 180 ℃.The graft rate is a dose dependent on initiator and the highest rate of graft was obtained when m(DCP)∶m(BPO) is 3∶1.the amounts of DCP should not be too high for avoiding serious cross-linking reaction. |
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| Keywords: | linear low-density polyethylene acrylic acid meltgrafting |
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