2results about How to "Promote curing reaction" patented technology

The application discloses a COF modified blue dye, a lens coating, a lens and a preparation method and application thereof, and belongs to the technical field of resin lenses. The preparation method of the COF modified blue dye comprises the following steps: step one, preparation of COF powder; and step two, preparation method of the COF modified blue dye: 1 part by weight of the COF powder is dispersed in 5-10 parts by weight of a 5-8 wt% HCl aqueous solution to obtain a COF dispersion liquid; 1-3 parts by weight of a blue dye is dissolved in 10-30 parts by weight of DMSO, and a blue dye dispersion liquid is obtained after uniform mixing; the COF dispersion liquid and the blue dye dispersion liquid are uniformly mixed, and then a polydimethylsiloxane stabilizer is added; and after freeze-drying and crushing, the COF modified blue dye is obtained. The lens coating obtained by the application has the advantages of uniform dispersion of the blue dye, excellent reflection of blue light, clear vision without distortion, no problems of spots and flow marks, high yield and suitability for industrial mass production.

This invention discloses a high thermal conductivity electrical casting refractory and its preparation method. The casting refractory contains, by weight: 75-90 parts inorganic filler, 7-13 parts bisphenol A type liquid epoxy resin, 2-5 parts aliphatic diglycidyl ether reactive diluent, 7-13 parts alicyclic anhydride curing agent, 0.2-1.2 parts monoalkoxy type titanate coupling agent, and 0.01-0.5 parts curing accelerator. The inorganic filler is a gradient particle size compound, comprising 80%-95% large-particle-size (500-2000 μm) quartz sand and 5%-20% small-particle-size (23-120 μm) alumina, modified by the coupling agent. The modified inorganic filler is mixed with resin, diluent, curing agent, and accelerator, and after degassing under reduced pressure, cured in stages at 80℃-160℃. This invention constructs a continuous thermal conductivity path with a thermal conductivity ≥2.0 W / (m·K) after curing. It also features high insulation, high mechanical strength, excellent heat resistance and flame retardancy. The process is simple and low-cost, and it is suitable for electrical equipment such as busbars, instrument transformers, and transformers.