Room-temperature cured epoxy polysiloxane resin
A technology of epoxy polysiloxane and epoxy resin, which is applied in epoxy resin coatings, organic chemistry, chemical instruments and methods, etc., can solve the phenomenon of orange peel in the coating film, poor surface effect and decreased anti-corrosion performance. And other issues
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Embodiment 1
[0041] ① Preparation of silicone oligomers: Add 35.6g of methyltriethoxysilane, 47.4g of dimethyldiethoxysilane, 48g of a Phenyltriethoxysilane and 20.5 g butyl glycidyl ether. Stirring was started and the temperature was raised to 50°C, and 23.2 g of the mixed solution of hydrochloric acid and deionized water was added dropwise. After the reaction is finished, the ethanol and water generated by the reaction are distilled out by first atmospheric distillation and then vacuum distillation. Cool down to room temperature and filter to obtain a colorless, transparent, uniform and stable low-viscosity liquid.
[0042] ②Take 50g of the silicone oligomer in the above ①, add 2g of hydroxyethylidene diphosphonic acid to it, stir well until the mixture is uniform.
[0043] ③Add 48g of epoxy resin E51 to the mixture of ② above. Epoxy polysiloxane resin is obtained after thorough mixing.
Embodiment 2
[0045] ① Preparation of silicone oligomers: Add 35.6g of methyltriethoxysilane, 47.4g of dimethyldiethoxysilane, 48g of a Phenyltriethoxysilane and 20.5 g of 1,6-hexanediol diglycidyl ether. Stirring was started and the temperature was raised to 50°C, and 23.2 g of the mixed solution of hydrochloric acid and deionized water was added dropwise. After the reaction is finished, the ethanol and water generated by the reaction are distilled out by first atmospheric distillation and then vacuum distillation. Cool down to room temperature and filter to obtain a colorless, transparent, uniform and stable low-viscosity liquid.
[0046] ②Take 62.5g of the silicone oligomer in ① above, add 2g of 2-phosphonic acid butane-1,2,4-tricarboxylic acid into it, and stir well until the mixture is uniform.
[0047] ③Add 35.5g of epoxy resin E44 to the mixture of ② above. Epoxy polysiloxane resin is obtained after thorough mixing.
Embodiment 3
[0049] ① Preparation of silicone oligomers: Add 35.6g of methyltriethoxysilane, 47.4g of dimethyldiethoxysilane, 48g of a Phenyltriethoxysilane and 20.5 g of trimethylolpropane triglycidyl ether. Stirring was started and the temperature was raised to 50°C, and 23.2 g of the mixed solution of hydrochloric acid and deionized water was added dropwise. After the reaction is finished, the ethanol and water generated by the reaction are distilled out by first atmospheric distillation and then vacuum distillation. Cool down to room temperature and filter to obtain a colorless, transparent, uniform and stable low-viscosity liquid.
[0050] ② Take 75g of the silicone oligomer in the above ①, add 2g of aminodimethylphosphonic acid to it, and stir well until the mixture is uniform.
[0051] ③Add 23g of epoxy resin E20 to the mixture of ② above. Epoxy polysiloxane resin is obtained after thorough mixing.
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