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水性聚氨酯分散液的制备与性能研究
引用本文:郑英丽,翁汉元,张俊良,樊义峰,曹红宝.水性聚氨酯分散液的制备与性能研究[J].化学推进剂与高分子材料,2006,4(6):54-56.
作者姓名:郑英丽  翁汉元  张俊良  樊义峰  曹红宝
作者单位:1. 河南科技大学,河南,洛阳,471003
2. 黎明化工研究院,河南,洛阳,471001
摘    要:以含有磺酸盐基团的聚酯二元醇和异佛二酮二异氰酸酯(IPDI)为主要原料,以二羟甲基丙酸(DMPA)为亲水单体,制备了一组不同组成的水性聚氨酯分散液,经力学性能测定和差示扫描量热法(DSC)分析,研究了亲水单体含量、软段相对分子质量及磺酸盐基团含量对分散液及其胶膜性能的影响。结果表明:软段中磺酸盐基团含量及软段相对分子质量对分散液胶膜的热力学性能和胶黏剂的初粘强度都有影响。

关 键 词:水性聚氨酯  分散液  结构  性能
文章编号:1672-2191(2006)06-0054-03
修稿时间:2006年9月18日

Study on Preparation and Properties of Aqueous Polyurethane Dispersions
ZHENG Ying-li,WENG Han-yuan,ZHANG Jun-liang,FAN YI-feng,CAO Hong-bao.Study on Preparation and Properties of Aqueous Polyurethane Dispersions[J].Chemical Propellants & Polymeric Materials,2006,4(6):54-56.
Authors:ZHENG Ying-li  WENG Han-yuan  ZHANG Jun-liang  FAN YI-feng  CAO Hong-bao
Abstract:A series of aqueous polyurethane dispersions with different compositions were prepared by using sulfonate group- containing polyester polyols and IPDI as main materials and DMPA as hydrophilic monomer. The effects of hydrophilic monomer content, the relative molecular mass of the soft segment and the sulfonate group content on properties of the dispersions and the films were studied by means of tensile property testing and DSC analysis. The results showed that the effects of the sulfonate group content in soft segment and the relative molecular mass of the soft segment on the thermodynamic properties of the dispersion films and the initial adhesion strength of the PU adhesives are significant.
Keywords:aqueous polyurethane  dispersion  structure  property
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