Anti-UV radiation automobile film and preparation method thereof
A technology for anti-ultraviolet radiation and car film, which is applied in the direction of radiation-absorbing coatings, coatings, textiles, and papermaking. It can solve the problems of large amount of silicone resin and unsatisfactory anti-electromagnetic radiation effect, and achieve good flexibility and mechanics. Performance, excellent radiation protection performance, wide range of applications
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Embodiment 1
[0026] The preparation of embodiment 1 anti-ultraviolet radiation automobile film
[0027] Preparation steps:
[0028] Step 1. Disperse the dried 1 mol graphite fiber in ethanol, add ammonia water under the action of ultrasound; then add 0.2 mol tetrabutyl titanate chelated with recombinant carboxypeptidase in advance, react at 45°C for 24 hours and use After several times of ethanol centrifugation and freeze-drying, yellow graphite fibers@TiO 2 ;
[0029] Step 2. Add 1mol graphite fiber @TiO 2 , 0.1mol coupling agent mixed in a polar organic solvent, heated at 50°C for 2 hours to obtain graphite fiber @TiO with surface modified by coupling agent 2 Dispersions;
[0030] Step 3. Surface-modified graphite fibers @TiO 2 Dissolve the dispersion in deionized water, add film-forming agent, plasticizer and PEG400, and stir evenly under ultrasonic conditions of 500W for 1 hour to obtain a film liquid, which is dipped in the PVC film, cured, and cut into a film to obtain The anti...
Embodiment 2
[0033] The preparation of embodiment 2 anti-ultraviolet radiation automobile film
[0034] Preparation steps:
[0035] Step 1. Disperse the dry 1mol graphite fiber in ethanol, add ammonia water under the action of ultrasound; then add 0.5mol tetrabutyl titanate chelated with recombinant carboxypeptidase in advance, react at 45°C for 24h and use After several times of ethanol centrifugation and freeze-drying, yellow graphite fibers@TiO 2 ;
[0036] Step 2. Add 1mol graphite fiber @TiO 2 , 0.3mol coupling agent in a polar organic solvent, and heated at 80°C for 10 hours to obtain a graphite fiber @TiO with a surface modified by the coupling agent 2 Dispersions;
[0037] Step 3. Surface-modified graphite fibers @TiO 2 Dissolve the dispersion in deionized water, add film-forming agent, plasticizer and PEG400, and stir evenly under ultrasonic conditions at 700W for 2 hours to obtain a film liquid, dip the film liquid on the PVC film, solidify, and cut the film to obtain The a...
Embodiment 3
[0040] The preparation of embodiment 3 anti-ultraviolet radiation automobile film
[0041] Preparation steps:
[0042] Step 1. Disperse the dried 1 mol graphite fiber in ethanol, add ammonia water under the action of ultrasound; then add 0.3 mol tetrabutyl titanate chelated with recombinant carboxypeptidase in advance, react at 45°C for 24 hours and use After several times of ethanol centrifugation and freeze-drying, yellow graphite fibers@TiO 2 ;
[0043] Step 2. Add 1mol graphite fiber @TiO 2 , 0.2mol coupling agent mixed in a polar organic solvent, heated at 70°C for 6 hours, and the surface of the graphite fiber @TiO modified by the coupling agent was obtained 2 Dispersions;
[0044] Step 3. Surface-modified graphite fibers @TiO 2 Dissolve the dispersion liquid in deionized water, add film-forming agent, plasticizer and PEG400, and stir evenly under ultrasonic conditions at 600W for 1.5h to obtain a film liquid, dip the film liquid on the PVC film, cure, cut the film, ...
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