Study on reactive polydimethylsiloxane-modified waterborne polyurethanes

文献类型： 外文期刊

第一作者： Zhang, Meng

作者： Zhang, Meng;Wu, Haiyan;Wu, Yuanjuan;Zhang, Qingsi

作者机构：

关键词： Ketone-hydrazine reaction;Post-crosslinking;Reactive polydimethylsiloxane;Waterborne polyurethane

期刊名称：JOURNAL OF POLYMER RESEARCH （ 影响因子：3.097； 五年影响因子：2.599 ）

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收录情况： SCI

摘要： A series of novel reactive polydimethylsiloxanes (PDMS) bearing hydroxypropyl group at both chain ends and carbonyl groups at the side chain were incorporated with toluene 2,4-diisocyanate, dimethylol propionic acid and polypropylene glycol by the prepolymer process to synthesize a series of reactive PDMS-modified waterborne polyurethanes. After post-added dihydrazide, self-crosslinking was achieved by the reaction between the dihydrazide and carbonyl group during film formation. The latex film properties of them were investigated compared with that of pure waterborne polyurethane. Crosslinking was indeed enhanced in the films. Tensile strength, elongation at break and higher performance in water and solvent adsorptions were also detected.

分类号： O6

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[1]Synthesis and characterization of alpha,omega-Bis(3-hydroxypropyl)-functionalized poly{dimethylsiloxane-co-methyl[3-(2-acetyl-acetoxy)]propylsiloxane}. Zhang, Meng,Wu, Haiyan,Xia, Yongmei,Wu, Yuanjuan,Zhang, Qingsi. 2012

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