Single-face or double-face optical hardening composite membrane and preparation method thereof
A composite film, single-sided technology, applied in chemical instruments and methods, optics, optical components, etc., can solve the problems of complex production and processing of optically hardened composite films, environmental impact, low light transmittance, etc.
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Embodiment 1-1A~1-5A
[0053] The composition and dosage of A-layer film mixture (hereinafter referred to as "A-layer material") 1-1A~1-5A are as follows:
[0054]
Embodiment 1-1B~1-5B
[0056] The composition and dosage of B-layer film mixture (hereinafter referred to as "B-layer material") 1-1B~1-5B are as follows:
[0057]
[0058] Part II Preparation of Hardened Resin Coating Solution
[0059] Basic process:
[0060] In a preparation container that can be weighed, add 40 to 75 parts by weight of an aqueous emulsion containing 35% polyurethane under stirring, and after stirring for 30 minutes, add a very small amount of pH regulator triethylamine dropwise to make the aqueous emulsion containing 35% polyurethane pH=9.5, under stirring, add 0.5-4 parts by weight of nano silica sol, 0.5-1.5 parts by weight of surfactant, 0.1-0.5 parts by weight of leveling agent, 0.1-0.5 parts by weight of defoamer, 1-8 parts by weight of light Initiator, 0.1-0.8 parts by weight of anti-yellowing agent, finally add 1-8 parts by weight of active diluent, then add deionized water until the total material reaches 100 parts by weight, add a very small amount of triethylamine d...
Embodiment 2-1
[0062] Formula 1 of the hardening resin coating liquid of the present invention (the viscosity of the 1# hardening resin coating liquid is 72mPa·s at 25°C):
[0063]
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