共查询到20条相似文献,搜索用时 234 毫秒
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Polyhedral oligomeric silsesquioxanes as titanium dioxide surface modifiers for transparent acrylic UV blocking hybrid coating 总被引:1,自引:0,他引:1
Architectural coatings are often recommended to enhance the durability of wood in exterior environment however the coatings itself are not UV stable enough for long term protection. For this reason inorganic UV absorbers like nano TiO2 in rutile crystal form are of great research interest in last decade. It's advantage is UV reversible absorption activity in polymer composite like coating during weathering [1]. On the other side the TiO2 surface has limited compatibility with polymers what can result in non-stable dispersion. To achieve a better compatibility between nano-particles and polymer matrix in coating, the use of different inorganic/organic surface modification of TiO2 rutile nano-particles is recommended. 相似文献
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综述了无机膜支撑体的研究和发展状况,着重介绍了陶瓷支撑体的主要制备方法:干压(半干压)成型法、注浆成型法和挤压成型法,综合评述了这些方法的优缺点和目前国内外主要研究进展.对制备过程中的主要影响因素作了初步探讨,并指出目前无机膜陶瓷支撑体的研究过程中存在的主要问题. 相似文献
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主要阐述了新材料和纳米技术对重要木器涂料改性研究的一些新进展,重点介绍纳米技术对水性和UV固化木器涂料的复合改性,以及溶胶-凝胶技术制备无机-有机纳米复合涂膜提高木材抗性的研究。 相似文献
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《Ceramics International》2022,48(22):33245-33255
As a surface strengthening and surface modification technology of materials, liquid thermal spray technology has been used in many fields, such as wear and friction reduction, corrosion resistance, and high-temperature oxidation resistance. This article reviews the progress of liquid thermal sprayed coating in wear resistance as well as friction reduction in recent years. The influences of microstructure, composition, phase structure and mechanical properties on the tribological properties of typical coatings (including ceramic coatings and multiphase composite coatings) are investigated. The tribological properties of the coating are determined by the coating characteristics (including microstructure, porosity, mechanical properties, etc.) and the service conditions (working temperature, lubrication state, etc.). Typical ceramic wear-resistant coatings include Al2O3, YSZ, HA coatings, etc. The tribological properties of the coating can be significantly improved through process optimization and heat treatment. The comparison of nanostructured and microstructured ceramic-based coating reveals that nanostructured coating reduces wear by absorbing stress. The interaction between different constituent phases improves wear resistance and reduces wear in composite coatings. Finally, various challenges faced by liquid thermal spray are pointed out, and future research focuses are proposed. 相似文献
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溶胶-凝胶技术及其在涂料工业中的应用 总被引:3,自引:0,他引:3
溶胶-凝胶技术是一种新型材料制备方法,可以用于无机材料,尤其是有机-无机杂化纳米复合材料的制备。其在涂料工业中的应用导致新型涂料和功能涂层不断涌现。对溶胶-凝胶技术的基本原理、用于涂料制作和涂装的具体工艺及此技术在涂料工业中的应用现状进行了比较全面的介绍,指出应该重视和大力研究发展该项技术。 相似文献