H_(12)MDI氨酯化反应动力学  

Urethane Reaction Kinetics of H_(12)MDI

作　　者：宋文生[1] 王瑞[1] 王洋 李迪[1] 

机构地区：[1]河南科技大学化工与制药学院,河南洛阳471023 [2]黎明化工研究设计院有限责任公司,河南洛阳471000

出　　处：《河南科技大学学报（自然科学版）》2016年第4期97-100,9,共4页Journal of Henan University of Science And Technology:Natural Science

基　　金：河南省科技攻关基金项目(102102210163);洛阳市科技计划基金项目(1203214B);河南科技大学青年科学基金项目(2011QN01)

摘　　要：依据—NCO与—OH二级反应特性,建立了动力学方程。采用二正丁胺滴定法,分别研究了4,4’-二环己基甲烷二异氰酸酯(H_(12)MDI)与聚四氢呋喃醚二醇(PTMG)、聚己二酸-1,4-丁二醇酯二醇(PBA)、1,4-丁二醇(BDO)在不同温度下的反应特性。研究结果表明:H_(12)MDI与PTMG、PBA和BDO反应活化能E a分别为60.9 k J/mol、113.0 k J/mol和42.2 k J/mol,H_(12)MDI与醇类化合物反应时活性较低。On the basis of the two order reaction characteristics of NCO and OH,the dynamic equation was established. Using di-n-butylamine titration method,the response characteristics of 4,4'-dicyclohexyl methane diisocyanate( H_(12)MDI) with polytetrahydrofuran ether glycol( PTMG),poly-1,4-butylene adipate glycol( PBA),1,4-butanediol( BDO) were studied respectively under different temperature. The results show that the reaction activation energy E a of H_(12) MDI and PTMG,PBA,BDO was 60. 9 k J / mol,113. 0 k J / mol,42. 2 k J /mol,respectively. The activity of H_(12) MDI is low when H_(12) MDI reacts with alcohols.

关 键 词：4 4’-二环己基甲烷二异氰酸酯 聚四氢呋喃醚二醇 聚己二酸-1 4-丁二醇酯二醇 1 4’-丁二醇 氨酯化反应动力学 

分 类 号：TQ316.2[化学工程—高聚物工业]