Organic fluorine-silicon light-cured resin and preparation method therefor and application thereof
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A light curing resin and curing resin technology, applied in the field of light curing, can solve the problems of low surface tension, weak force, small force, etc., to achieve low surface tension, strong wipe resistance and thermal stability, strong self-cleaning performance effect
Active Publication Date: 2015-11-18
GUANGDONG BOSSIN NOVEL MATERIALS TECH CO LTD
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[0002] Fluorocarbon resin has the characteristics of super weather resistance, acid and alkali resistance, and stain resistance. The self-cleaning effect of carbon resin is poor; silicone resin has low surface tension, after it is applied to fluorocarbon resin, it may be able to improve the self-cleaning effect and stain resistance of fluorocarbon resin; but currently commercially available The method of organic silicon modification of fluorocarbon resin mostly adopts the method of simply adding coupling agent, but the force between the added silane coupling agent and fluorocarbon resin is small, and the effect of improving the performance of fluorocarbon resin is poor
[0003] Chinese patent CN201410059916.4 discloses a silicone-modified fluorocarbon resin, which is composed of mixed fluorine monomers, silane coupling agents, acicular silicates, enesters, unsaturated olefinic acids, ketones, initiators ( Azobisisobutyronitrile) and other components, which first prepare fluorocarbon resin, and then connect acicular silicate and fluorocarbon resin through a silane coupling agent. This patent mainly focuses on the transparency, Hardness, chemical resistance and aging resistance, etc., bu...
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Embodiment 1
[0040] Synthesis of Embodiment 1 Organic Fluorosilicone Photocurable Resin 1
[0041] (1) 20kg of hydroxyalkyl polysiloxane ( , n=28, R is -CH 2 CH 2 CH 2 OH), 9kg of isophorone diisocyanate, and 0.01kg of organotin catalyst were put into a reactor equipped with a stirrer, dropping funnel and thermometer, heated and stirred to 45°C under nitrogen protection, and kept for 2.0 hours;
[0042] (2) At 65°C, add 20kg of fluorocarbon resin and keep it warm for 2.0 hours; then add 10kg of hydroxyethyl acrylate and 0.04kg of p-methoxyphenol and react for 2 hours to obtain an organofluorosilicon photocurable resin.
Embodiment 2
[0043] Synthesis of Embodiment 2 Organic Fluorosilicone Photocurable Resin 2
[0044] (1) 20kg of hydroxyalkyl polysiloxane ( , n=28, R is -CH 2 CH 2 CH 2 OH), 9kg of isophorone diisocyanate, and 0.01kg of organotin catalyst were loaded into a reactor equipped with a stirrer, dropping funnel and thermometer, heated and stirred to 45°C under nitrogen protection, and kept for 2.0 hours;
[0045] (2) At 65°C, add 20kg of fluorocarbon resin and keep it warm for 2.0 hours; then add 20kg of trimethylolpropane triacrylate and 0.04kg of p-methoxyphenol and react for 2 hours to obtain organofluorosilicon Light curing resin.
Embodiment 3
[0046] Embodiment 3 Synthesis of organofluorosilicon photocurable resin 3
[0047] (1) 60kg of hydroxyalkyl polysiloxane ( , n=28, R is -CH 2 CH 2 CH 2 CH 2 OH), 27kg of isophorone diisocyanate, and 0.45kg of organotin catalyst were loaded into a reactor equipped with a stirrer, dropping funnel and thermometer, heated and stirred to 45°C under nitrogen protection, and kept for 2.0 hours;
[0048] (2) At 65°C, add 30kg of fluorocarbon resin and keep it warm for 2.0 hours; then add 20kg of hydroxyethyl acrylate and 0.16kg of p-methoxyphenol and react for 2 hours to obtain an organofluorosilicon photocurable resin.
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Abstract
The invention relates to organic fluorine-silicon light-cured resin, the molecular weight of the organic fluorine-silicon light-cured resin is 2000-15000. The organic fluorine-silicon light-cured resin is prepared by the following steps: S1, putting hydroxylalkyl polysiloxane, diisocyanate and a catalyst in a reaction container, heating and stirring the mixture under nitrogen protection to 30-60 DEG C, and insulating the mixture to react for 1.0-3.0 hours; and S2, adding fluorocarbon resin into a polysiloxane prepolymer obtained in the S1 at 30-65 DEG C, and insulating the mixture to react for 1.0-5.0 hours; and then adding hydroxyl acrylate and a polymerization inhibitor and insulating the mixture to react for 1.0-5.0 hours to prepare the organic fluorine-silicon light-cured resin, wherein the dosage ratio of hydroxylalkyl polysiloxane and fluorocarbon resin is 0.1-2, and hydroxylalkyl polysiloxane has the structure shown in the formula, wherein the formula is shown in the description; the group R is -CH2OH, -CH2CH2OCH2OH, -CH2CH2CH2OCH2OH, -CH2CH2CH2OH or -CH2CH2CH2CH2OH and n is an integer from 0 to 100; the dosage of diisocyanate accounts for 10-30% of all components in total mass; the dosage of the hydroxyl acrylate accounts for 10-30% of all components in total mass.
Description
technical field [0001] The invention relates to the field of photocuring technology, in particular to an organic fluorosilicon photocurable resin and its preparation method and application. Background technique [0002] Fluorocarbon resin has the characteristics of super weather resistance, acid and alkali resistance, and stain resistance. The self-cleaning effect of carbon resin is poor; silicone resin has low surface tension, after it is applied to fluorocarbon resin, it may be able to improve the self-cleaning effect and stain resistance of fluorocarbon resin; but currently commercially available The method of organic silicon modification of fluorocarbon resin mostly adopts the method of simply adding coupling agent, but the force between the added silane coupling agent and fluorocarbon resin is small, and the effect of improving the performance of fluorocarbon resin is poor . [0003] Chinese patent CN201410059916.4 discloses a silicone-modified fluorocarbon resin, whi...
Claims
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