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阴离子型萜烯基环氧树脂多元醇的交联反应动力学  ( EI收录)   被引量:2

Crosslinking Reaction Kinetics of Anionic Polyol from Terpene-Based Epoxy Resin

文献类型:期刊文献

中文题名:阴离子型萜烯基环氧树脂多元醇的交联反应动力学

英文题名:Crosslinking Reaction Kinetics of Anionic Polyol from Terpene-Based Epoxy Resin

作者:吴国民[1,2] 孔振武[1,2] 陈健[1] 霍淑平[1] 刘贵锋[1] 蒋剑春[1]

第一作者:吴国民

通信作者:Kong, Z.

机构:[1]中国林业科学研究院林产化学工业研究所,江苏省生物质能源与材料重点实验室,生物质化学利用国家工程实验室,国家林业局林产化学工程重点开放性实验室,江苏南京210042;[2]中国林业科学研究院林业新技术研究所,北京100191

年份:2013

卷号:29

期号:6

起止页码:66-69

中文期刊名:高分子材料科学与工程

外文期刊名:Polymer Materials Science & Engineering

收录:CSTPCD;;EI(收录号:20132916508542);Scopus(收录号:2-s2.0-84880012823);北大核心:【北大核心2011】;CSCD:【CSCD2013_2014】;

基金:国家自然科学基金资助项目(31100428,30972320)

语种:中文

中文关键词:动力学;双组分水性聚氨酯;差示扫描量热;萜烯

外文关键词:kinetics; two-component waterborne polyurethane ; differential scanning calorimetry; terpene

分类号:O633.13

摘要:采用冷冻干燥和差示扫描量热法研究了以阴离子型萜烯基环氧树脂多元醇(T-PABA)水分散体与聚异氰酸酯组成的双组分水性聚氨酯体系的本体交联反应动力学。以Málek最大概然模型分析了实验数据,得到了交联反应动力学参数,建立了交联反应动力学方程。结果表明,以Málek最大概然法得到的双因子自催化模型(S-B模型)能较好地描述T-PABA交联体系的反应过程,在实验所考察的5K/min^20 K/min升温速率范围内,其计算拟合动力学曲线与实验曲线吻合度较好。
The crosslinking reaction kinetics of a two-component waterborne polyurethane (2K-WPU) composed of an anionic polyol dispersion from terpene-based epoxy resin and a hexamethylene diisocyanate tripolymer were investigated using freeze-drying and differential scanning calorimetry (DSC) technique. The data fitting is implemented with Mdlek' s mechanism function method. The kinetic parameters of crosslinking reaction were determined by DSC kinetic analysis, and then the kinetic model was built. The results indicate that the crosslinking process of the reaction follows an autocatalytic reaction. The two-parameter ( m, n) autocatalytic model can well describe the crosslinking reaction process of 2K-WPU. The DSC curves derived from the experimental data show a good agreement with the theoretically calculation under 5 k/min-20 k/min heating rate.

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