纳米杂化SiO2织物防水涂层研究

Study of Hybrid Nano-SiO2 Fabric Waterproof Coating

摘要:

以含氢硅油(PHMS)、十六烯(HDE)和乙烯基三乙氧基硅烷( VTES)为原料，通过硅氢化加成反应制得长碳链/烷氧基共改性硅油（PHV）。用红外光谱（FT-IR）对PHV进行结构表征。采用γ-（2,3-环氧丙氧）丙基三甲氧基硅烷（KH-560）、氨基改性纳米硅溶胶和PHV依次对棉织物进行处理，制备防水涂层。用扫描电子显微镜（SEM）观察了涂层的膜微观形貌，用静态接触角测量仪、白度仪和柔软度仪测定了织物应用性能。结果表明，整理后织物表面存在大量疏水杂化纳米微突体，随PHV用量的增加，织物的柔软度降低，白度的变化较小，织物表面水的静态接触角达到142.1 °，有较好的防水性。

Abstract:

A new modified silicone oil with long carbon chain and alkoxy group(PHV)is synthesized using hydrosiloxane (PHMS)，hexadecene (HDE) and vinyltriethoxysilane (VTES) as raw materials by hydrosilylation.. The chemical structure of PHV was characterized by means of Fourier transform infrared spectroscopy (FT-IR). Using the gamma-(epoxy propyl ether 2,3-) propyl trimethoxy silane (KH-560) amino-modified nano-silica Sol and PHV for fabric processing, preparation of waterproof coating. micro topography of the coating membrane were observed by scanning electron microscopy (SEM), and corresponding application performance of the fabric were investigated by the static contact angle measurement instrument, whiteness meter and softness tester, respectivel. Results showed that many micro-nano scale tubercles were coated on the surface of the finished cotton fabrics. With increase of the amount of PHV, softness of the fabric reduced, and whiteness did not change significantly. As expected, fabrics have good waterproof performance and the highest angle on water surface can reach 142.1 ?