PVC precoated film and preparation method thereof
A film-loading and pre-coating technology, used in coatings, polyurea/polyurethane coatings, primers, etc., can solve the problems of poor adhesion of PVC floor coatings, easy coating peeling, and large differences in floors, and achieve simplification. Processing and production, the effect of improving adhesion
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Example Embodiment
[0048] In the preparation process of the traditional PVC floor composite material, the PVC base plate is obtained by pressing and pasting the PVC base plate and the PVC film at high temperature to obtain the PVC board base material, and then UV-cured coating is made on the PVC board base material to obtain the finished PVC flooring product. The PVC floor coating obtained by this process has poor adhesion, and the paint is easily peeled off locally, which affects the appearance of the PVC floor; in addition, the PVC floor produced by some textured PVC floors sometimes tends to have uneven gloss; Paint coating is done on the PVC film first, and the obtained PVC pre-coating film is directly pressed and pasted with the PVC bottom plate at high temperature to obtain a PVC floor. The application of the present invention finds that not just doing paint on the PVC film can obtain a qualified PVC pre-coating film. The coating film and PVC pre-coating film have cracking during rewinding,...
Example Embodiment
[0067] Example 1
[0068] Embodiment 1 of the present invention provides a kind of PVC precoating film, comprises PVC transparent film layer and radiation-cured coating from bottom to top, and radiation-cured coating comprises adhesion primer layer, elastic primer layer, functional coating successively from bottom to top. layer and topcoat layer;
[0069]In parts by weight, the preparation raw materials for the attached primer layer include 6 parts of two-functionality polyurethane acrylate resin, 3 parts of vinyl acetate resin, 35 parts of two-functionality acrylate monomer, 40 parts of solvent and 0.5 part of initiator;
[0070] In parts by weight, the raw materials for preparing the elastic primer layer include 45 parts of two-functionality urethane acrylate resin, 30 parts of two-functionality acrylate monomer, 13 parts of monofunctionality acrylate and 3 parts of initiator;
[0071] The two-functionality acrylate monomer is 1,6-hexanediol diacrylate; the vinyl acetate re...
Example Embodiment
[0089] Example 2
[0090] Embodiment 2 of the present invention provides a kind of PVC precoating film, comprises PVC transparent film layer and radiation-cured coating from bottom to top, and radiation-cured coating comprises adhesion primer layer, elastic primer layer, function layer and topcoat layer;
[0091] In parts by weight, the preparation raw materials for the attached primer layer include 10 parts of two-functionality urethane acrylate resin, 5 parts of vinyl acetate resin, 40 parts of two-functionality acrylate monomer, 50 parts of solvent and 1 part of initiator;
[0092] In parts by weight, the raw materials for preparing the elastic primer layer include 60 parts of two-functionality urethane acrylate resin, 40 parts of two-functionality acrylate monomer, 15 parts of monofunctionality acrylate and 5 parts of initiator;
[0093] The two-functionality acrylate monomer is 1,6-hexanediol diacrylate; the vinyl acetate resin is vinyl vinyl resin 14-50, purchased from ...
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