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(1) Pin-holes: A condition in which a towel has a pore similar to a puncture formed with a needle in the coating film. It is caused by air bubbles mixed in the wet film and other air bubbles generat......
2020-02-14(1) Clouding: Varnishes, oils or thinners appear cloudy and opaque due to precipitation of insolubles. (2) Discoloration of varnish or paint: During storage, coatings deviate from their original co......
2020-02-14There is no difference between using oil-based paint and only the variety of paint. The process is divided into the following aspects: substrate surface treatment (referred to as pretreatment), includ......
2020-02-14According to foreign media reports, researchers at the Institute of Engineering of the Federal Institute of Technology (EPFL) in Lausanne, Switzerland have developed a breakthrough 3D printing method ......
2020-02-14Reporter learned from the Huludao City Propaganda Department that at around 19:50 on February 11, an explosion accident occurred in the dimethozone workshop of Liaoning Xianda Agricultural Science Co.......
2020-02-12After a continuous decline, the domestic silicone market bottomed out in December and the atmosphere picked up, and the silicone DMC market began to pick up. As of last weekend, the average price of t......
2020-02-12Researchers use N- (trimethoxysilylpropyl) -4-azide-2,3,5,6-tetrafluorobenzamide to modify nano-sized zinc oxide and graft it onto the silicone polymer chain The grafting reaction changes the refracti......
2020-02-12The researchers first hydrolyzed the alkoxysilane into a prepolymer and then polycondensed it with a hydrogen-containing alkoxysilane to obtain a phenyl-containing hydrogen-based silicone resin. The p......
2020-02-12Researchers use hydrolysis and condensation to obtain phenyl silicone resin: phenyltrimethoxysilane, diphenyldimethoxysilane, vinyltrimethoxysilane are used as raw materials, and hydrochloric acid aqu......
2020-02-12At present, there are many patents on LED packaging materials, and phenyl packaging materials have the most research. A tetraphenylcyclotetrasiloxane and a vinyl double head are used as raw materials,......
2020-02-11According to its refractive index, it can be divided into two types: low refractive index (1.4) and high refractive index (1.5). The refractive index 1.4 is mainly methyl-type silicone materials, and ......
2020-02-11The organosilicon polymer has a Si—O bond as the main chain, and an organic group is connected to a silicon atom, and may have R3 SiO1 / 2 (M), R3 SiO2 / 2 (D), R3 SiO3 / 2 (T), R3 SiO2 ( Q) Combinati......
2020-02-11The researchers used alicyclic epoxy resins to react with diphenyldihydroxy and triphenylhydroxy groups to produce high refractive index (1.58), thermally stable, and UV-resistant silicone epoxy modif......
2020-02-11The chemical copolymerization method is to use reactive groups on the silicone polymer, such as hydroxyl, alkoxy, etc., to react with epoxy groups and other reactive groups on the epoxy resin to form ......
2020-02-11Epoxy resin has a high refractive index and light transmittance, and its mechanical properties and adhesive properties are quite good, so there are still certain products in the market that are being ......
2020-02-09
