Effect of Hydrophilic Chain Extenders on Properties of Hyperbranched Waterborne Polyurethane

被引：0

作者：

Wang Xuechuan ^{[1
]}

Ren Jing ^{[1
]}

Qiang Taotao ^{[1
]}

机构：

[1] Shaanxi Res Inst Agr Prod Proc Technol, Xian 710021, Shaanxi, Peoples R China

来源：

JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS AND CHEMISTS | 2016年 / 100卷 / 02期

关键词：

Dendrimers - Emulsification - Hydrophilicity - Chains - Propionic acid - Particle size - Heat resistance;

D O I：

暂无

中图分类号：

TB3 [工程材料学]; TS1 [纺织工业、染整工业];

学科分类号：

0805 ; 080502 ; 0821 ;

摘要：

Using hydroxyl terminated hyperbranched polymer as the core, dimethylol propionic acid (DMPA), dimethylolbutanoic acid (DMBA), carboxylic acid type monomer (DMCA) as the hydrophilic chain extenders respectively, three different types of hyperbranched waterborne polyurethane leather finishing agents were synthesized. The structures and properties of the products were characterized by FT-IR, SEM, AFM and TG. Simultaneously, the mechanical properties, surface wettability and water and solvent resistance of three films were studied. The results found the order of crystallinity to be: DMBA-HWPU <DMPA-HWPU <DMCA-HWPU, concerning the particle size, that of DMPA-HWPU emulsion was minimal; the elongation at break of DMCA-HWPU was the highest at 276.55%; the heat resistance of three types of urethane was nearly the same.

引用

页码：62 / 66

页数：5