IOTA
Superhydrophobic surface (coating) plays an irreplaceable role in the fields of drag reduction, energy saving, anti ice and anti biological deposition. Recently, many bottom-up or top-down preparation......
2020-02-26Epoxy resin floor is a kind of high-strength, wear-resistant and beautiful floor. It has the advantages of no joint, solid texture, convenient maintenance and low maintenance cost, so it is deeply lov......
2020-02-243.5 effect of coating on surface quality of resin matrix Fig. 4 and Fig. 5 are SEM pictures of resin surface. From the comparison of Fig. 4 and Fig. 5, it can be seen that due to the low hardness......
2020-02-24Because the thickness of the coating is too large and the cohesion of the coating increases when the rubber concentration is too high, the coating will crack and the kink force is poor. In general, th......
2020-02-243.2 effect of different coupling agents on sol stability and coating adhesion The influence of KH-550, KH-560 and KH-570 on the stability of sol and the adhesion of coating without coupli......
2020-02-242 experiment 2.1 preparation of dissolved limb Mix TEOS, Siwan coupling agent, ethanol and acetoacetate in a certain proportion, slowly add a proper amount of deionized water......
2020-02-24Siloxane ester, KH-560 and KH-570 were used as precursors to prepare silicone wear-resistant coatings on epoxy resin by sol gel method combined with spin coating. The properties of the coating were te......
2020-02-241.6.4 water dispersion of defoamer Take 5g defoamer into the beaker, add 25g distilled water, shake, and observe the dispersion results. In the case of milky white solution, no white oil phase an......
2020-02-201.2 the low hydrogen silicone oil is prepared by the polymerization method [3]. 111.5g DMC, 6.5g high hydrogen silicone oil and 2.2gmm were added to the reactor, and concentrated sulfuric acid was use......
2020-02-20In recent years, polyether modified polysiloxane has become a hot research topic at home and abroad. Through the graft modification of hydrophilic polyether, polysiloxane can be endowed with water sol......
2020-02-20Silicon based surfactant, the water sparing part of which is siloxane spine. Silicone surfactants provide unique properties that traditional surfactants cannot achieve. Various organic or inorganic gr......
2020-02-20Hexamethyldisilazane, colorless and transparent liquid. It is easy to hydrolyze and release NH3 to form hexamethyldisilane. In the presence of catalyst, it reacts with alcohol or phenol to form trimet......
2020-02-20有机硅模塑料 上一世纪60年代我国航空工业急需一种能耐强电流、高电压的制作微型开关用的耐弧有机硅模塑料。北京化工研究院开发成功用一甲基三氯硅烷为原料直接水解制作的硅树脂，配以石棉填充料制成耐弧模塑料，解决了航空工业的急需。此材料后转到上海树脂厂生产。后因需用量不多上海树脂厂不再生产，但用户仍需要这种材料，他们不得不向搬迁到四川的晨光化工研究院求援。该院吴盛全等为满足用户急需，改用从一甲基......
2020-02-19有机硅玻璃树脂和耐高温有机硅云母黏结剂 我国最早开展有机硅玻璃树脂和高温云母黏结剂是化工部晨光化工研究院的霍长顺，陈汝凤等。在上一世纪70年代末开发成功用一甲基三乙氧基硅烷在酸性催化剂存在下水解缩聚反应制得CTS-103有机硅树脂，俗称“有机硅玻璃树脂”。该树脂早期用于高级纸张的处理，以及金属表面的涂覆保护，也可用于云母片或云母粉的黏结。1980年上海树脂厂方三华、薛志庆、李燕声分别采用......
2020-02-19超疏水表面（涂层）在减阻、节能、防冰以及防生物淤积等应用领域有着不可替代的作用。近来，人们已经发展了诸多自下而上或是自上而下的制备策略，用以构筑具有低表面能和粗糙表面结构的功能性超疏水涂层。但是，微纳结构表面构筑过程的复杂性以及微纳粗糙结构易磨损特点使得超疏水涂层在制备成本和使用寿命方面受到极大地制约。发展简便策略实现具有高耐磨或易修复、可再生的超疏水表面的的功能涂层是该领域的重要发展方向。 ......
2020-02-19
