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首页> 外文期刊>Journal of the Society of Leather Technologists and Chemists >Effect of Novel Synthetic Clay on the Property of Waterborne Polyurethane Leather Finishing Agent: Enhanced Thermal, Mechanical and UV-resistant Performance
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Effect of Novel Synthetic Clay on the Property of Waterborne Polyurethane Leather Finishing Agent: Enhanced Thermal, Mechanical and UV-resistant Performance

机译：新型合成粘土对水性聚氨酯皮革涂饰剂性能的影响：增强的耐热，机械和抗紫外线性能

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摘要

Waterborne polyurethane/laponite composites used for leather finishing have been prepared via the solution mixing method. The dispersion stability of laponite and composite emulsions were determined by atomic force microscopy (AFM) and dynamic light scattering (DLS). Thermogravimetric analysis (TGA), tensile testing and UV-Vis spectra were used to test the performance of the resulting films. The results indicate that the nano-particles with negative charges can form highly stable aqueous dispersion under alkaline condition and exhibit good compatibility with anionic waterborne polyurethanes. The emulsions possess good storage stability with an average particle diameter of 80 similar to 94nm. The uniformly dispersed clay platelets can markedly improve the thermal stability and mechanical properties of the composites. In addition, the incorporation of small-sized clay is capable of maintaining the transparent appearance of the film and giving an UV-resistant property.
机译：通过溶液混合法制备了用于皮革涂饰的水性聚氨酯/膨润土复合材料。通过原子力显微镜（AFM）和动态光散射（DLS）测定锂皂石和复合乳液的分散稳定性。使用热重分析（TGA），拉伸测试和UV-Vis光谱来测试所得膜的性能。结果表明，带负电荷的纳米颗粒在碱性条件下可以形成高度稳定的水分散体，并与阴离子水性聚氨酯具有良好的相容性。该乳剂具有良好的储存稳定性，其平均粒径为80，类似于94nm。均匀分散的粘土薄片可以显着改善复合材料的热稳定性和机械性能。另外，掺入小尺寸粘土能够保持膜的透明外观并赋予抗紫外线性能。

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    Wang Chunhua; Mu Changdao; Lin Wei;

  • 作者单位

    Sichuan Univ, Dept Biomass & Leather Engn, Key Lab Leather Chem & Engn, Minist Educ, Chengdu 610065, Sichuan, Peoples R China;

    Sichuan Univ, Dept Pharmaceut & Bioengn, Sch Chem Engn, Chengdu 610065, Sichuan, Peoples R China;

    Sichuan Univ, Dept Biomass & Leather Engn, Key Lab Leather Chem & Engn, Minist Educ, Chengdu 610065, Sichuan, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
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  • 正文语种 eng
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