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DOI:
功能高分子学报:2009,(1):60-63
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聚氨酯改性不饱和聚酯树脂的反应动力学
(华东理工大学材料科学与工程学院)
Kinetics of the Curing of Polyurethane Modified Unsaturated Polyester Resin
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投稿时间:2008-10-07    
中文摘要: 通过差示扫描量热法(DSC)和傅里叶红外光谱(FT-IR)分析,探讨了聚氨酯改性不饱和聚酯树脂(UPR)体系反应特征及固化反应动力学。结果表明:体系中聚氨酯网络的形成远快于UPR网络的形成。UPR和聚氨酯改性UPR体系的表观活化能分别为58.0 kJ/mol和64.8 kJ/mol,改性后体系的活化能并无较大变化;反应的级数分别为0.90和0.91。
Abstract:The curing characteristic and kinetics analysis of polyurethane modified unsatura-ted polyester are studied by DSC and FT-IR. The network of polyurethane is formed much faster than that of unsatura ted polyester. The apparent activation energy of UPR is 58.0 kJ/mol, while that of polyurethane modified UPR is 64.8 kJ/mol. There is no significant difference between the two systems. The reaction order of UPR is 0.90, while that of polyurethane modified UPR is 0.91.
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  yeye224@126.com 
   
   
  nilizhong@online.sh.cn 
引用本文:
叶蓓,周权,宋宁,倪礼忠.聚氨酯改性不饱和聚酯树脂的反应动力学[J].功能高分子学报,2009,(1):60-63.
.Kinetics of the Curing of Polyurethane Modified Unsaturated Polyester Resin[J].Journal of Functional Polymers,2009,(1):60-63.