文献类型：期刊文献

英文题名：Kinetics of the crosslinking reaction of nonionic polyol dispersion from terpene-maleic ester-type epoxy resin

作者：Wu, Guo Min[1,2,3,4] Kong, Zhen Wu[1,2,3,4] Chen, Cai Feng[1,2,3,4] Chen, Jian[1,2,3,4] Huo, Shu Ping[1,2,3,4] Jiang, Jian Chun[1,2,3,4]

第一作者：吴国民;Wu, Guo Min

通信作者：Wu, GM[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China;[2]Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu, Peoples R China;[3]Natl Engn Lab Biomass Chem Utilizat, Nanjing 210042, Jiangsu, Peoples R China;[4]State Forestry Adm, Key & Open Lab Forest Chem Engn, Nanjing 210042, Jiangsu, Peoples R China

年份：2013

卷号：111

期号：1

起止页码：735-741

外文期刊名：JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY

收录：;EI(收录号：20130415930910);Scopus(收录号：2-s2.0-84872491917);WOS:【SCI-EXPANDED(收录号:WOS:000313207400095)】；

基金：The authors gratefully acknowledge the financial support from the Chinese National Natural Science Foundation (contract Grant number: 30972320, 31100428).

语种：英文

外文关键词：Kinetics; Water-soluble polymers; Polyurethanes; Differential scanning calorimetry

摘要：The bulk crosslinking reaction kinetics of a novel two-component waterborne polyurethanes (2K-WPUs) composed of a bio-resin-based polyol dispersion and a hydrophilically modified hexamethylene diisocyanate tripolymer are investigated by freeze-drying and differential scanning calorimetry (DSC) technique at different heating rates. The data fit for the above two components is implemented with the nth-order kinetics equation and Malek's mechanism function method, respectively. The kinetic parameters of crosslinking reaction are determined by the kinetic analysis of the data obtained from the thermal treatment, and then the kinetic model is built. The results indicate that the nth-order model deduced from Kissinger and Crane equation has great distinction with the experimental data, while the Malek analytic mechanism shows that the crosslinking process of the crosslinking reaction follows an autocatalytic reaction. The two-parameter (m and n) autocatalytic model (S-B model) can well describe the crosslinking reaction process of the studied 2K-WPU. The DSC curves derived from the experimental data show a good agreement with the theoretical calculation under 5-20 A degrees C min(-1) heating rate. The results provide theoretical basis for the choice of the manufacturing process and the optimization of processing window.