At present, the curing methods of silicone coating materials used in domestic and foreign release papers are mainly thermal curing and UV curing. Compared with UV curing, thermal curing silicone resin materials are cheaper, but this system generally uses solvent systems, high curing temperature, high energy consumption, and low efficiency. Many substrates cannot be baked at high temperatures.

Release coating (isolation coating) is a kind of anti-adhesive coating that prevents prepreg from sticking and protects prepreg from contamination. Compared with traditional UV resins, due to the greater absorption and penetration of oxygen by silicone acrylate resins and their oligomers (the oxygen diffusion coefficient of polydimethylsiloxane is 605×10-10cm/s, while polymethicone Methyl acrylate is only 0.154×10-10cm/s), so the key to realizing UV silicone acrylate release paper products is to effectively remove oxygen in the system, such as pre-purging, for very thin Coating (<10μm) is an effective method to quickly form a seal on the substrate surface to hinder the absorption and diffusion of oxygen. However, if nitrogen purging is used for protection, it is necessary to upgrade the original coating equipment, increase nitrogen production equipment or nitrogen storage equipment, and increase the cost of coating;

Therefore, this paper attempts to select the appropriate resin to prepare the peeling force by studying the influence of UV-curable silicone resin, monomer, prepolymer, additives and coating methods on the basic properties of the coating under the protection of no nitrogen gas. Silicone release coating with low and good adhesion to the substrate.

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