PET optical film coating formulation technology (4)-film supplier

by:POLYVA     2021-12-12
The PET optical film coatings used in the LCD field are classified according to the main resin used, mainly including silicone coatings, polyurethane coatings and acrylic coatings or their modified derivatives. Dehydrate the polyether glycol at high temperature, then add TDI and catalyst to obtain a polyurethane prepolymer; then add dimethyl silicone oil, epoxy resin, chain extender, crosslinking agent, plasticizer, Defoamers and fillers can be used to obtain polyurethane coatings modified by organic silicon and epoxy resin. The coating film of the coating has high mechanical strength, good adhesion, low water absorption, good thermal stability and acid and alkali resistance. Using hydroxyethyl acrylate (HEA) and self-made dihydroxy acrylate as raw materials, acrylate groups are introduced into the side chain of polyurethane to prepare UV-curable acrylate polyurethane. Compared with the film, the coating film has better heat resistance, solvent resistance, pendulum hardness and mechanical properties. Diffusion film can be prepared by coating a layer of resin coating on PET film and other substrates. The coating uses polyurethane resin and adds one or more organic or inorganic particles with a single particle size distribution as diffusion particles. The diameter of the diffusion particles is 1~50μm. In order to improve the dispersion effect, a modified poly Silicone (polysiloxane) or polycarboxylic acid (polycarboxylic). It is a company specializing in the production of PET film with multiple functions, such as: transparent PET film, milky white PET film, release PET film, supply of PET motor film, etc. With a wide variety of products, affordable prices, and environmental protection, we provide customers with excellent quality and service based on the service tenet of excellence in production, honesty and trustworthiness in distribution, and warm and thoughtful service. Interested parties welcome to inquire!
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