TDI-IPDI Waterborne polyurethane emulsions: properties and application

被引:0
作者
Guo, Yuhua [1 ]
Li, Shucai [1 ]
Wang, Gaosheng [1 ]
机构
[1] Tianjin Univ Sci & Technol, Coll Mat Sci & Chem Engn, Tianjin 300222, Peoples R China
来源
FUNDAMENTAL OF CHEMICAL ENGINEERING, PTS 1-3 | 2011年 / 233-235卷
关键词
Waterborne polyurethane emulsions (WPUs); surface sizing; Cobb; Tolylene isocyanate (TDI); Isophorone diisocyanate (IPDI); CROSS-LINKING;
D O I
10.4028/www.scientific.net/AMR.233-235.1700
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
TDI as main isocyanate, IPDI as end-capping reagent, waterborne polyurethane emulsions (WPUs) surface-sizing agent have been obtained. The properties of WPUs and papers sized by WPUs with different DMPA content, different NCO/OH molar ratio and nNCO(TDI)/nNCO(IPDI) are systematically examined. The results show that WPUs are new kinds of surface sizing agents with good properties. The water resistance, surface gloss and smoothness of papers sized by WPUs have dramatically increased. The folding endurance, tearing resistance and tensile strength of WPU sized papers are observed to increase obviously.
引用
收藏
页码:1700 / 1703
页数:4
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