White ink with high reflectivity as well as preparation method and application thereof
A white ink, high reflectivity technology, used in applications, inks, household appliances, etc., can solve the problems of poor high temperature yellowing resistance, uneven printing thickness, and poor flexibility of white ink cover films, saving labor hours , Improve the effect of good and good mechanical properties of the product
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Embodiment 1
[0053] Prepare the following mass ratio raw materials:
[0054] 30 parts of titanium dioxide, 4 parts of polyester resin, 5 parts of silicone resin, 10 parts of curing agent, 2 parts of ultraviolet absorber, 2 parts of accelerator, 0.05 part of fluorosurfactant, 0.5 part of fumed silica, solvent ( ethyl acetate) 30 parts.
[0055] Adhesive preparation: add silicone resin (self-made, improve weather resistance), 1200 polyester resin (increase cross-linking density), H18 fumed silica (reduce expansion and contraction coefficient), 2310 titanium dioxide (whitening agent) in sequence according to the formula ), ultraviolet absorber UV-531, antioxidant EVERNOX-10, trimer curing agent N3390, accelerator U-CAT 3513, ethyl acetate solvent, etc., after stirring for 5 h, a white ink with a solid content of 70% was prepared Adhesive solution.
[0056] Preparation of white LED single-sided substrate: the white ink adhesive solution prepared above is coated on the polyimide (PI) of FCCL ...
Embodiment 2
[0058] 30 parts of titanium dioxide, 6 parts of polyester resin, 5 parts of silicone resin, 10 parts of curing agent, 2 parts of ultraviolet absorber, 2 parts of accelerator, 0.05 part of fluorosurfactant, 0.5 part of fumed silica, solvent ( ethyl acetate) 30 parts.
[0059] The preparation method of the adhesive is the same as the preparation method of the white LED single-sided substrate as in Example 1.
Embodiment 3
[0061] 30 parts of titanium dioxide, 8 parts of polyester resin, 1 part of silicone resin, 10 parts of curing agent, 2 parts of ultraviolet absorber, 2 parts of accelerator, 0.05 part of fluorosurfactant, 0.5 part of fumed silica, solvent ( ethyl acetate) 30 parts.
[0062] The preparation method of the adhesive is the same as the preparation method of the white LED single-sided substrate as in Example 1.
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