Preparation method of photocatalytic shell powder coating
A technology of photocatalysis and shell powder, applied in the direction of epoxy resin coating, coating, etc., can solve the problem of removal or even decomposition of difficult organic poisonous gases, achieve obvious adsorption effect, broad application prospects, and improve efficiency
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Embodiment 1
[0031] Preparation of thiolated halloysite powder:
[0032] In parts by weight, 20 parts of halloysite powder, 40 parts of toluene, and 20 parts of 3-mercaptopropyltrimethoxysilane are placed in a three-necked flask, heated to 100°C, heated to reflux for 20 hours, and the obtained reflux material is filtered The filtrate is removed, and the solid is separated and dried under vacuum at 70° C. to obtain thiolated halloysite powder.
[0033] Preparation of photocatalytic nanotube carrier:
[0034] Mix the mercapto halloysite powder, 30% hydrogen peroxide, distilled water, and methanol at a mass ratio of 7:4:5:3 in a single-necked bottle to obtain a mixed solution. At room temperature, the magnetic stirring speed is 300r / min. Under the conditions of oxidation reaction for 12h, then add 10% chromium trichloride of the remaining mixed liquid mass to the single-neck bottle, chromate reaction for 10h, filter and remove the filtrate to obtain the filter residue, and place it in a vacuum dryi...
Embodiment 2
[0044] Preparation of thiolated halloysite powder:
[0045] In parts by weight, 25 parts of halloysite powder, 45 parts of toluene, and 23 parts of 3-mercaptopropyltrimethoxysilane are placed in a three-necked flask, heated to 105°C, heated to reflux for 22h, and the resulting reflux is filtered The filtrate is removed, and the solid is separated and dried under vacuum at 75° C. to obtain mercapto halloysite powder.
[0046] Preparation of photocatalytic nanotube carrier:
[0047] Mix the mercapto halloysite powder, 30% hydrogen peroxide, distilled water, and methanol at a mass ratio of 7:4:5:3 and place them in a single-necked bottle to obtain a mixed solution. At room temperature, the magnetic stirring speed is 350r / min. Under the conditions of oxidation reaction for 12h, then add 10% chromium trichloride of the remaining mixed liquid mass to the single-neck bottle, chromate reaction for 11h, filter and remove the filtrate to obtain the filter residue, and place it in a vacuum dry...
Embodiment 3
[0057] Preparation of thiolated halloysite powder:
[0058] In parts by weight, 30 parts of halloysite powder, 50 parts of toluene, and 25 parts of 3-mercaptopropyltrimethoxysilane are placed in a three-necked flask, heated to 110°C, heated to reflux for 24 hours, and the obtained reflux material is filtered The filtrate is removed, the solid is separated and dried under vacuum at 80° C. to obtain mercapto halloysite powder.
[0059] Preparation of photocatalytic nanotube carrier:
[0060] Mix the mercapto halloysite powder, 30% hydrogen peroxide, distilled water, and methanol at a mass ratio of 7:4:5:3 in a single-necked bottle to obtain a mixed solution. At room temperature, the magnetic stirring speed is 400r / min. Under the conditions of oxidation reaction for 13h, then add 10% chromium trichloride of the remaining mixed liquid mass to the single-neck bottle, chromate reaction for 12h, filter and remove the filtrate to obtain the filter residue, and place it in a vacuum drying ov...
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