水性聚氨酯亲水性扩链剂的研究进展.pdf

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CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2014年第33卷第2期
进展与述评
水性聚氨酯亲水性扩链剂的研究进展
王学川,任静,强涛涛
(映西科技大学合成革与皮革绿色化学品研究所,陕西西安710021)
摘要:水性聚氨酯在涂料、医学、胶黏剂等领域都有着广泛的应用,而扩链剤是合成聚氨酯的一种关键原料。
在扩链剂上引入某些特征基团就会对聚氨階的性能产生一定的影响,亲水性扩链剂可以使水性聚氯酯具有良好
的分散性或自乳化性能。羧酸型和磺酸型亲水扩链剂是目前使用较为普遍的阴离子型亲水扩链剂材料、该文简
述了扩链剂的定义、作用以及亲水性扩链剂的种类,综述了羧酸型和磺酸型亲水扩链剂的研究进展,详细分析
了磺酸型水性聚氪酯的高耐水性、高柔软性,高固含量等性能以及相比于羧酸型水性聚氨酯在各方面性能上的
优势。文中还简述了非离子型亲水扩链剂和两性亲水扩链剂的研究进展,并就成本、合成路线及环保方面对亲
水性扩链剂的发展趋势作了展望
关键词:水性聚氪酯;亲水扩链剂;磺酸型;羧酸型
中图分类号:TQ612.9文献标志码:A
文章编号:100-6613(2014)02-0432-07
DO1:10.3969/sn.1000-6613.2014.02.029
Research progress in waterborne polyurethane hydrophilic chain extender
WANG Xuechuan, REN Jing, O/ANG Taotao
(Green Chemicals for Leather Synthetic Leather, Shaanxi University of Science Technology, XI an 710021
Shaanxi, China
Abstract: Waterborne polyurethane is widely used in many fields, such as coating, medicine and
adhesive, and chain extender is one of the key raw materials for the synthesis of polyurethane. Groups
introduced on the chain extender with certain characteristics will affect the performance o
polyurethane, hydrophilic chain extender can provide waterborne polyurethane good dispersion and
emulsification. Currently carboxylic acid and sulfonic acid hydrophilic chain extenders are commonl
used materials of anionic chain extenders. In this paper, the definition and function of the chain
extender, the kinds of hydrophilic chain extenders were briefly described. The research progress in
carboxylic acid and sulfonic acid hydrophilic chain extenders were summarized, the differences in the
performance of carboxylic acid and sulfonic acid of waterborne polyurethanes were analyzed in detail
The high water resistance, high flexibility, high solid content and other properties of sulfonic acid type
waterborne polyurethane are analyzed in detail, and compared to carboxylic acid type waterborne
polyurethane in the performance advantages of all aspects. The research progress in nonionic
hydrophilic and amphoteric hydrophilic chain extenders were briefly described, and the development
trend of hydrophilic chain extender in the cost, the synthetic route and environmental aspects was also
discussed
Key words: waterborne polyurethane; hydrophilic chain extender; carboxylic acid; sulfonic acid
收稿日期:2013-08-15:修稿日期:2013-09-26。
第一作者及联系人:王学川(1963-),男,王学博士,博士生导师,
基金项目:国家自然科学基金(21076120)、陕西省科技厅科技计划教授。E-mailwangxc(@sust.cdu.cn
(2011SZS007)及陕西科技大学研究生创新基金项目。