TiO_2/KH-550纳米微粒改性聚氨酯皮革涂饰剂的研究  

Study on Polyurethane Leather Finishing Agent Modified by TiO_2/KH-550 Nano-particles

作　　者：潘卉[1] 陈珊珊[1] 肖莎莎[2] 丁涛[1] 张治军[2] 

机构地区：[1]河南大学化学化工学院,河南开封475004 [2]河南大学特种功能材料教育部重点实验室,河南开封475004

出　　处：《皮革与化工》2015年第3期1-6,共6页Leather And Chemicals

基　　金：国家自然科学基金-河南人才联合培养基金项目(U1404213)

摘　　要：在甲苯溶剂中,三乙胺催化下制备了γ-氨丙基三乙氧基硅烷(KH-550)表面修饰的纳米Ti O2(Ti O2/KH-550),利用傅里叶变换红外光谱仪(FTIR)、热重分析仪(TGA)和扫描电子显微镜(SEM)对其进行了结构和形貌分析。实验中发现Ti O2/KH-550在水性聚氨酯(WPU)基体中分散性好,且能显著提高WPU的耐热、抗紫外线和疏水性能。经Ti O2/KH-550-WPU复合涂饰剂涂饰的革的耐水性和耐磨性也得到明显改善。TiO2 nanoparticles were surface-modified byγ-aminopropyltriethoxysilane （KH-550） in toluene using triethylamine as a catalyzer. The structure and morphology were characterized by Fourier transform infrared （FTIR）, thermogravimetric analyses （TGA） and scanning electron microscopy （SEM）. TiO2/KH-550 had a good dispersibility in water-borne polyurethane matrix （WPU） and greatly improved the heat resistance, ultraviolet resistant and hydrophobicity of WPU. The antiwear and hydrophobicity of the leather finishing by TiO 2/KH-550-WPU composite coating agents were also increased evidently.

关 键 词：Γ-氨丙基三乙氧基硅烷 纳米TIO2 改性 水性聚氨酯 

分 类 号：TS529.5[轻工技术与工程—皮革化学与工程]