Method for quickly preparing silicon dioxide/wood composite material
A technology of silica and composite materials, which is applied in the direction of wood impregnation, impregnated wood, wood processing utensils, etc., can solve the problems of uneven compounding, high cost, and time-consuming production process, and achieve uniform compounding, stable quality, and reduced production. The effect of process time
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Embodiment 1
[0030] The method for rapid preparation of silica / wood composites is as follows:
[0031] 1. Wood pretreatment: After the logs are peeled and cut, put them in a container and add water to preheat and cook for 24 hours, then put them into a drying box, adjust the drying temperature to 103 °C, and dry for 18 hours for pre-drying treatment.
[0032] 2. The configuration of the silicon-containing precursor solution: tetraethyl orthosilicate is used as the precursor, and anhydrous ethanol is used as the solvent to mix uniformly to obtain a mixed solution, and concentrated hydrochloric acid is added as a catalyst, wherein the amount of ethyl orthosilicate and deionized water is equal to Ratio 1:2, tetraethyl orthosilicate and absolute ethanol are uniformly mixed according to the ratio of substance amount of 1:2, and concentrated hydrochloric acid is added dropwise while magnetic stirring to make the pH value of the whole solution 2.5. Keep magnetic stirring for 30 min until the stir...
Embodiment 2
[0037] The method for rapid preparation of silica / wood composites is as follows:
[0038] 1. Wood pretreatment: After the logs are peeled and cut, put them in a container and add water to preheat and cook for 24 hours, then put them into a drying box, adjust the drying temperature to 103 °C, and dry for 18 hours for pre-drying treatment.
[0039] 2. The configuration of the silicon-containing precursor solution: tetraethyl orthosilicate is used as the precursor, and anhydrous ethanol is used as the solvent to mix uniformly to obtain a mixed solution, and concentrated hydrochloric acid is added as a catalyst, wherein the amount of ethyl orthosilicate and deionized water is equal to Ratio 1:2, tetraethyl orthosilicate and absolute ethanol are uniformly mixed according to the ratio of substance amount of 1:2, and concentrated hydrochloric acid is added dropwise while magnetic stirring to make the pH value of the whole solution 2.5. Keep magnetic stirring for 30 min until the stir...
Embodiment 3
[0044] The method for rapid preparation of silica / wood composites is as follows:
[0045] 1. Wood pretreatment: After the logs are peeled and cut, put them in a container and add water to preheat and cook for 24 hours, then put them into a drying box, adjust the drying temperature to 103 °C, and dry for 18 hours for pre-drying treatment.
[0046] 2. The configuration of the silicon-containing precursor solution: tetraethyl orthosilicate is used as the precursor, and anhydrous ethanol is used as the solvent to mix uniformly to obtain a mixed solution, and concentrated hydrochloric acid is added as a catalyst, wherein the amount of ethyl orthosilicate and deionized water is equal to Ratio 1:2, tetraethyl orthosilicate and absolute ethanol are uniformly mixed according to the ratio of substance amount of 1:2, and concentrated hydrochloric acid is added dropwise while magnetic stirring to make the pH value of the whole solution 2.5. Keep magnetic stirring for 30 min until the stir...
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