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The hazard of concrete corrosion is mainly reflected in: significantly shortening the service life of concrete, reducing the safety factor of concrete structure, leading to safety accidents and bringi......
2019-07-11Silicone knowledge Silicone alias: Silicic acid gel, a highly active adsorbent material, is an amorphous material. The main component of silica gel is silica (so called silica gel), which is chemical......
2019-07-101, raw rubber: Silicone rubber raw rubber types are: dimethyl silicone rubber (referred to as methyl silicone rubber), methyl vinyl silicone rubber (referred to as vi......
2019-07-101, mixing: When mixing with an open mill, it is best to equip the opener roller with a dust or air blower to reduce the flying of the silica. During the mixing process, no other ......
2019-07-10UV-cured nano-coatings combine UV-curing green technology with emerging nano-technology to make certain properties of coatings significantly improved. Wei Jun et al. synthesized urethane terminat......
2019-07-10The viscosity of the urethane acrylate oligomer is high, which is not conducive to the preparation and construction of the coating, and its application range is limited. Hyperbranched polymer is a ma......
2019-07-10The waterborne urethane acrylate contains a large amount of reactive groups to impart good flexibility and cohesiveness to the cured film, but at the same time, mechanical properties, solvent resistan......
2019-07-101 Waterborne urethane acrylate Water-based UV-curable urethane acrylate (WPUA) replaces the reactive diluent monomer in traditional UV-curable coatings with water, and solves the problems of irrita......
2019-07-101.3.1 Solution polymerization The reaction of isocyanate and hydroxyl groups in the synthesis of urethane acrylates is strongly exothermic, and the exothermic problem of the reaction can be controlle......
2019-07-101.1 Reaction mechanism of urethane acrylate The isocyanate contains highly unsaturated double bonds and its electronic resonance structure is shown in Figure 1. As can be seen from Figure 1, ......
2019-07-10As the economy gets better and better, every household buys a car, and everyone buys the car that suits their level of consumption, but in the face of all kinds of invisible "killers" on the road, you......
2019-07-10Inorganic non-metallic materials based on silicon also have their own fatal shortcomings: poor toughness and brittleness; otherwise, organic polymer materials also have some disadvantages: easy to age......
2019-07-09Inorganic non-metallic materials based on silicon also have their own fatal shortcomings: poor toughness and brittleness; otherwise, organic polymer materials also have some disadvantages: easy to age......
2019-07-09advantage: 1) Wide application: Due to the special chemical structure of silicone oil, it is neither compatible with water or polar group-containing substances, nor compatible with hydrocarbons or ......
2019-07-09The simple dimethyl silicone oil has no defoaming effect, so it needs to be defoamed after emulsification. The surface tension of the emulsified silicone is rapidly reduced, and a small amount of foam......
2019-07-09
