Yanliang Shen , Yanhua Wang , Chen Zhao , Xingwei Wang , Qiangliang Yu , Meirong Cai , Bo Yu , Feng Zhou
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引用次数: 0
Abstract
A complete silica microcapsule filled with PAO6 oil was synthesized by emulsion-templated sol-gel method. The average diameter of microcapsule was about 20 µm, with encapsulation capacity of 70 %. The microcapsules were well-dispersed in aqueous solution and fully compatible with waterborne epoxy emulsion, making it suitable for building VOC-free self-lubricating coatings. With 5 wt% microcapsule, the self-lubricating coating achieved an exceptionally low friction coefficient at about 0.02, approximately 2.6 % of that of the blank coating without microcapsules. The wear volume could barely be measured. The ultra-fast response ability was robust, as confirmed by the negligible running time throughout the continuous start-stop sliding tests. This oil-filled silica microcapsule has great potential for developing high performance and VOC-free self-lubricating coatings.
期刊介绍：
Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International.
Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.
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