Organosilicon fluorine material for sealing and protecting irony cultural relics and method of producing the same
An organic silicon and fluorine material technology, applied in the field of silicon-fluorine materials, can solve the problems of greasy surface, poor temperature resistance, difficult to achieve anti-corrosion performance and aging resistance of iron cultural relics, and achieve good film-forming ability, Strong anti-corrosion effect
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Embodiment 1
[0021] At room temperature, 50 parts of hydroxyfluorosilicone oil with a hydroxyl value of 6% and 50 parts of deionized water were placed in a reaction flask, heated to 85°C, and 2 parts of 10 -5 mol / L dilute hydrochloric acid as a catalyst, and then slowly drop mixed organic silicon mixed monomers (wherein 40 parts of hydroxyl silicone oil with a hydroxyl value of 8%, 10 parts of methyltrimethoxysilane, 50 parts of phenyltrimethoxy silane, 10 parts of octyltrimethoxysiloxane), let it fully react for 4 hours. Then add 1 part of 5% sodium carbonate solution to adjust the pH value to neutral, and continue to heat up to 95 ° C for further aging for 2 hours. Distill under reduced pressure to remove small molecular substances, then cool to room temperature, and filter to obtain 100 parts of colorless and translucent organosilicon fluoropolymer, then add 0.1 part of nano-silica, stir at high speed for 3 hours to a homogeneous state, and let it stand After defoaming, dilute to 20% w...
Embodiment 2
[0023] At room temperature, 50 parts of hydroxyfluorosilicone oil with a hydroxyl value of 8% and 50 parts of deionized water were placed in a reaction flask, heated to 85°C, and 2 parts of 10 -5 mol / L dilute hydrochloric acid as a catalyst, and then gradually and slowly drop mixed organic silicon mixed monomers (40 parts of hydroxyl silicone oil with a hydroxyl value of 3%, 20 parts of methyltriethoxysilane, 40 parts of phenyltrimethoxy base silane, 5 parts of octyltrimethoxysiloxane), and make it fully react for 4 hours. Then add 1 part of 10% ammonia water to adjust the pH value to neutral, and continue to heat up at 115°C for further aging for 2 hours. Distill under reduced pressure to remove small molecular substances, then cool to room temperature, and filter to obtain 95 parts of colorless and translucent organic silicon fluoropolymer, then add 0.4 parts of nano-titanium dioxide, stir at high speed for 5 hours to a homogeneous state, and let it stand for defoaming Afte...
Embodiment 3
[0025] At room temperature, 50 parts of hydroxyfluorosilicone oil with a hydroxyl value of 6% and 50 parts of deionized water were placed in a reaction bottle, heated to 75°C, and 1 part of 10 -5 mol / L phosphoric acid as a catalyst, and then gradually drop the mixed organosilicon mixed monomer (20 parts of hydroxyl silicone oil with a hydroxyl value of 8%, 20 parts of methyltrimethoxysilane, 50 parts of phenyltrimethoxysilane , 10 parts of octyltrimethoxysiloxane) to fully react for 4 hours. Then add 1 part of 5% sodium carbonate solution to adjust the pH value to neutral, and continue to heat up to 105 ° C for further aging for 2 hours. Distill under reduced pressure to remove small molecular substances, then cool to room temperature, and filter to obtain 105 parts of colorless and translucent organosilicon fluoropolymer, then add 0.2 parts of nano-silica, stir at high speed for 4 hours to a homogeneous state, and let stand After defoaming, dilute to 20% with acetone to obta...
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