| IPN中聚氨酯固化反应动力学的FTIR研究 |
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| 引用本文： | 钟发春,王晓川,张晓华.IPN中聚氨酯固化反应动力学的FTIR研究[J].化学推进剂与高分子材料,2004,2(3):32-35. |
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| 作者姓名： | 钟发春 王晓川 张晓华 |
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| 作者单位： | 中国工程物理研究院化工材料研究所,四川绵阳,621900;中国工程物理研究院化工材料研究所,四川绵阳,621900;中国工程物理研究院化工材料研究所,四川绵阳,621900 |
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| 基金项目： | 中国工程物理研究院科学基金资助项目(990563) |
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| 摘 要： | 用傅立叶变换红外光谱(FTIR)研究纯聚氨酯弹性体和聚氨酯/聚二甲基硅氧烷IPN中聚氨酯的固化反应动力学。结果表明,在PU/PDMS IPN体系中聚氩酯的交联反应仍为二级反应,聚二甲基硅氧烷的存在大大降低了PU/PDMS IPN的交联速率,并提高了反应活化能。
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| 关 键 词： | 聚氨酯 互穿聚合物网络 固化反应动力学 |
| 文章编号： | 1672-2191(2004)03-0032-04 |
| 修稿时间： | 2004年1月13日 |
Study on Polyurethane Curing Reaction Kinetics in PU/PDMS IPN by FTIR |
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| ZHONG Fa-chun,WANG Xiao-chuan,ZHANG Xiao-hua.Study on Polyurethane Curing Reaction Kinetics in PU/PDMS IPN by FTIR[J].Chemical Propellants & Polymeric Materials,2004,2(3):32-35. |
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| Authors: | ZHONG Fa-chun WANG Xiao-chuan ZHANG Xiao-hua |
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| Abstract: | The kinetics of polyurethane curing reaction in pure polyurethane elastomer and polyurethane/ polydimethylsiloxane interpenetrating polymer networks (PU/PDMS IPN) were studied by FTIR. The result shows that the crosslinking reaction of polyurethane in PU/PDMS IPN is second order reaction, but crosslinking rate of PU/PDMS IPN is greatly reduced and its reaction activity energy was increased because of existing PDMS. |
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| Keywords: | polyurethane interpenetrating polymer networks curing reaction kinetics |
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