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

doi:10.3969/j.issn.0253-2417.2016.02.001

林产化学与工业 ›› 2016, Vol. 36 ›› Issue (2): 1-8.doi: 10.3969/j.issn.0253-2417.2016.02.001

• 研究报告 • 下一篇

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

司红燕, 商士斌, 刘鹤, 王丹, 廖圣良, 宋湛谦

中国林业科学研究院林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室, 江苏南京 210042

收稿日期:2015-06-26 出版日期:2016-04-25 发布日期:2016-04-26
通讯作者: 宋湛谦,中国工程院院士,主要从事天然产物化学研究;E-mail:songzq@hotmail.com。 E-mail:songzq@hotmail.com
作者简介:司红燕(1987—),女,山东德州人,博士生,主要研究方向为生物质资源化学与利用
基金资助:
国家自然科学基金云南联合基金项目(U1202265)

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

SI Hong-yan, SHANG Shi-bin, LIU He, WANG Dan, LIAO Sheng-liang, SONG Zhan-qian

Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China

Received:2015-06-26 Online:2016-04-25 Published:2016-04-26

摘要/Abstract

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-2K-WPU和D270-2K-WPU)相比,MPP-2K-WPU的表面能最小且耐水性最强。

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

Abstract: 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 was the minimum, and its water resistance was the best.

Key words: maleopimaric anhydride, 2K-WPU, contact angle goniometry, surface free energy, water resistance

中图分类号:

TQ35

司红燕, 商士斌, 刘鹤, 王丹, 廖圣良, 宋湛谦. 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[J]. 林产化学与工业, 2016, 36(2): 1-8.

SI Hong-yan, SHANG Shi-bin, LIU He, WANG Dan, LIAO Sheng-liang, SONG Zhan-qian. Evaluation of Surface Free Energy of Maleopimaric Anhydride Modified 2K-WPU by Contact Angle Goniometry[J]. Chemistry and Industry of Forest Products, 2016, 36(2): 1-8.

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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

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

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