文献类型：期刊文献

中文题名：接触角法测量马来海松酸改性双组分水性聚氨酯的表面能

英文题名：Evaluation of Surface Free Energy of Maleopimaric Anhydride Modified 2K-WPU by Contact Angle Goniometry

作者：司红燕[1,2,3,4] 商士斌[1,2,3,4] 刘鹤[1,2,3,4] 王丹[1,2,3,4] 廖圣良[1,2,3,4] 宋湛谦[1,2,3,4]

第一作者：司红燕

机构：[1]中国林业科学研究院林产化学工业研究所;[2]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;[4]江苏省生物质能源与材料重点实验室

年份：2016

卷号：36

期号：2

起止页码：1-8

中文期刊名：林产化学与工业

外文期刊名：Chemistry and Industry of Forest Products

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家自然科学基金云南联合基金项目(U1202265)

语种：中文

中文关键词：马来海松酸;双组分水性聚氨酯;接触角法;表面能;耐水性

外文关键词：maleopimaric anhydride; 2K-WPU; contact angle goniometry; surface free energy; water resistance;

分类号：TQ35

摘要：将亲水改性的多异氰酸酯分别与马来海松酸改性聚酯多元醇(MPP)、聚酯多元醇(PP)和Bayhydrol D270聚酯多元醇水分散体进行复合交联制得MPP-2K-WPU、PP-2K-WPU和D270-2K-WPU,并采用FT-IR和DSC对产物进行表征。利用接触角法研究了n(—NCO)∶n(—OH)及多元醇组分种类对2K-WPU涂膜接触角、表面能和耐水性的影响,并采用Equation of State法和Owens-Wendt-Rabel-Kaelble法对试验数据进行分析。结果表明,与甲酰胺系列(甲酰胺、甲酰胺-二碘甲烷)检测液体相比,水系列(水、水-二碘甲烷)检测液体能更好地对2K-WPU涂膜表面性能进行描述;随着n(—NCO)∶n(—OH)的增加,MPP-2K-WPU的表面能先减小后增大,耐水性呈现先增强后减弱的趋势,当n(—NCO)∶n(—OH)为1.5∶1时其表面能最小、耐水性最强;与2种对照样(PP-2KWPU和D270-2K-WPU)相比,MPP-2K-WPU的表面能最小且耐水性最强。
MPP-2K-WPU,PP-2K-WPU and D270-2K-WPU were prepared by crosslinking of hydrophilic-modified polyisocyanate with maleopimaric acid modified polyester polyol（ MPP）,polyester polyol（ PP） and Bayhydrol D270 polyester polyol dispersion,respectively. The products were characterized by FT-IR and DSC. The influences of n（ —NCO） ∶ n（ —OH） and type of polyol component on contact angle,surface free energy and water resistance of 2K-WPU films were investigated. The experimental data were analyzed using Equation of State method and Owens-Wendt-Rabel-Kaelble method. The results showed that water series test liquid（ water,water-diiodomethane） was better to describe the surface properties of 2K-WPU,if it was compared with formamide series test liquid（ formamide,formamide-diiodomethane）. With increasing of n（ —NCO） ∶ n（ —OH）,the surface free energy of MPP-2K-WPU decreased firstly and then increased,and the water resistance increased firstly and then decreased. MPP-2K-WPU exhibited the minimum surface free energy and the strongest water resistance when the n（ —NCO） ∶ n（ —OH） was 1. 5 ∶ 1.Compared with two kinds of control samples（ PP-2K-WPU and D270-2K-WPU）,the surface free energy of MPP-2K-WPU wasthe minimum,and its water resistance was the best.