详细信息
蓖麻油改性聚醚型水性聚氨酯乳液的性能 被引量:13
Preparation and properties of castor oil-modified waterborne polyurethane emulsion
文献类型:期刊文献
中文题名:蓖麻油改性聚醚型水性聚氨酯乳液的性能
英文题名:Preparation and properties of castor oil-modified waterborne polyurethane emulsion
作者:蒋洪权[1,2,3] 宋湛谦[1,2,3] 商士斌[1,2,3] 尹延柏[1,2,3]
第一作者:蒋洪权
机构:[1]中国林业科学研究院林产化学工业研究所;[2]国家林业局生物质化学利用国家工程实验室;[3]国家林业局林产化学工程重点开放性实验室
年份:2010
期号:2
起止页码:285-288
中文期刊名:化工进展
外文期刊名:Chemical Industry and Engineering Progress
收录:CSTPCD;;Scopus;北大核心:【北大核心2008】;CSCD:【CSCD2011_2012】;
基金:引进先进林业科学技术创新项目(2006-4-C03)
语种:中文
中文关键词:蓖麻油;水性聚氨酯;交联改性
外文关键词:castor oil waterborne polyurethane modified crosslinking
分类号:TQ630.4
摘要:以聚醚、甲苯二异氰酸酯(TDI)、一缩二乙二醇、蓖麻油为主要原料,二羟甲基丙酸(DMPA)为亲水扩链剂,三乙胺为中和剂制备了稳定的阴离子水性聚氨酯乳液(WPU),研究了NCO/OH摩尔比、DMPA及蓖麻油的加入量对WPU的耐水性、稳定性和力学性能的影响,结果表明:改性后的乳液具有较好的稳定性,适量的蓖麻油可提高胶膜的拉伸强度及耐水性。当聚醚与蓖麻油质量比为7︰3、DMPA为5%、NCO与OH摩尔比为1.3时,WPU综合性能最好。
Stable waterborne polyurethane (WPU) was synthesized from toluene diisocyanate (TDI),a polyether polyol and dihydroxymethylpropionic acid (DMPA) using castor oil as the crosslinking agent. Effects of NCO/OH,DMPA and castor oil on the water-resistance,stability and mechanical properties were investigated. Results showed that the castor oil modified WPU has better stability,and suitable amount of castor oil can improve the tensile strength and water-resistant properties of the film from WPU. The obtained WPU has excellent balanced properties when prepared with 7:3 mass ratio of polyether to castor oil,5% mass percent of DMPA,and 1.3 molar ratio of NCO to OH.
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