A hardened layer coating liquid and a hardened film
A hardened layer and coating liquid technology, applied in coatings, antifouling/underwater coatings, polyurea/polyurethane coatings, etc., can solve problems such as poor thermal flexibility of hardened films, achieve high transmittance and reduce surface tension , High antifouling effect
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[0073] The preparation method of cured film provided by the invention comprises the following steps:
[0074] (1) Coating the hardened layer coating solution on the surface of the substrate, placing it in a circulating oven to dry, and then photocuring to form a hardened layer;
[0075] (2) The cured film obtained in the step (1) is subjected to heat bending processing to obtain a cured film formed by bending.
[0076] Further, in step (1), the circulation oven drying temperature is 80°C, and the drying time is 2 minutes; the light curing energy is 600mJ / cm 2 of ultraviolet radiation.
[0077] Before coating the hardened layer coating liquid on the surface of the substrate, the above preparation method further includes the step of configuring the hardened layer into the hardened layer coating liquid.
[0078] The hot bending process includes a hot bending shaping process, the hot bending shaping process is a high temperature shaping process, the temperature is 150-280°C, and...
Embodiment 1
[0089] The invention provides a hardened layer coating solution and a hardened film. The hardened film includes a hardened layer formed by curing a hardened layer coating liquid.
[0090] Wherein the hardening layer coating solution comprises: 30% hexafunctional urethane acrylic resin oligomer, 23% trifunctional urethane acrylic resin oligomer, 5% trifunctional acrylate monomer, 2% photoinitiator, 0.2 % of fluorine additives and 39.8% of organic solvents. Among them, the hexafunctional urethane acrylic resin oligomer, the trifunctional urethane acrylic resin oligomer, and the trifunctional acrylate monomer are all provided by Meiyuan, and the photoinitiator is 184 provided by BASF, and the fluorine additive (tetrafluoroethylene polymer) Provided by Shin-Etsu, the organic solvent is ethyl acetate.
[0091] The hardened layer coating solution was diluted to 36% solid content with ethyl acetate, and the hardened layer coating solution was coated on a PET substrate (provided by ...
Embodiment 2
[0094] Hardened layer coating solution and cured film provided as embodiment 1, wherein the hardened layer coating solution comprises:
[0095] The preparation method of the hardening solution provided in this embodiment includes:
[0096] With 23% hexafunctional urethane acrylic resin oligomer, 23% trifunctional urethane acrylic resin oligomer, 12% trifunctional acrylate monomer, 3% photoinitiator, 0.2% fluorine additive and 38.8 % of organic solvents. Among them, the hexafunctional urethane acrylic resin oligomer, the trifunctional urethane acrylic resin oligomer, and the trifunctional acrylate monomer are all provided by Meiyuan, and the photoinitiator is 184 provided by BASF, and the fluorine additive (hexafluoropropylene polymer) Provided by Shin-Etsu, the organic solvent is ethyl acetate.
[0097] The hardened layer coating solution was diluted with ethyl acetate to a solid content of 37%.
[0098] The thickness of the formed hardened layer was 6 μm.
[0099] The per...
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Abstract
Description
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