Negative ion environment-friendly coating and preparation method thereof
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An environmentally friendly coating and negative ion technology, applied in epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve the problems of weak adsorption, not conducive to improving the air purification effect of coatings, etc., to reduce mixed crosslinking agents and improve air purification. effect of effect
Active Publication Date: 2021-07-13
江苏旌翔建材科技有限公司
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Problems solved by technology
[0004] In view of the above-mentioned related technologies, the inventor believes that the formaldehyde in the air is in a free state, and the above-mentioned coating has a weak adsorption effect on free formaldehyde, which is not conducive to improving the air purification effect of the coating.
Method used
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preparation example 1
[0045] BI 2 O 3 / Activated carbon, prepared in accordance with the following steps: 1.5 kg of 2.5% nitric acid solution and 1.5 kg absolute ethanol were added to the stirrer, and after stirring at 300r / min for 30 min, 1.5 kg of BI (NO) 3 ) · 5h 2 O Add to the stirrer, stirred at 400r / min for 50 min to give a transparent sol, and the transparent sol is placed in the hydrofluoroethylene liner in the hydrothermal reaction kettle, and the polytetrafluoroethylene liner is placed in the hydrothermal reaction kettle. Further, the hydrolymothermal reaction elutabate was removed into the oven, reacted at 120 ° C for 24 h, remove the reaction kettle, and then centrifuate the liquid in the polytetrafluoroethylene insertion, gave a solid product, put the solid product in an oven, at 80 After drying at ° C for 6 h, then polished the solid product, resulting in Bi 2 O 3 / Activated carbon.
preparation example 2
[0047] BI 2 O 3 -Tio 2 / Activated carbon, prepared according to the following steps:
[0048] (1) 1.5 kg of titanate titanate with 4 kg of anhydrous ethanol was added to the agitator, under 200R / min, stirred for 15 min to give a titanium-containing solution;
[0049] (2) At 300 r / min, 1.5 kg of nano activated carbon was added to a titanium-containing solution, stirred for 15 min to give a mixture;
[0050] (3) mixing 1.5 kg of 2.5% nitric acid solution and 1.5 kg of anhydrous ethanol mix well to give a nitrate solution;
[0051] (4) Under stirring conditions of 400R / min, nitrate solution and 1.5 kg of BI (NO) 3 ) · 5h 2 O Add in the mixture, stir after 60min, resulting in a sol;
[0052] (5) In the polytetrafluorine liner in the hydrothermal reaction kettle, the polytetrafluoroethylene linear is placed into a water heat reaction kettle, and then remove the hydrothermal reactor into the oven, at 120 ° C, will The hydrothermal reaction kettle is heated for 24 h, and the polyt...
Embodiment 1-7
[0055] As shown in the table, the main difference between Examples 1-7 is different from the ratio of the feedstock.
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Abstract
The invention relates to the technical field of building material coatings, and particularly discloses a negative ion environment-friendly coating and a preparation method thereof. The negative ion environment-friendly coating is prepared from, by weight, 40-70 parts of water-borne epoxy resin, 5-15 parts of a mixed cross-linking agent, 5-20 parts of negative ion powder, 5-10 parts of a bismuth-based activated carbon photocatalyst, 1-4 parts of a dispersing agent and 50-100 parts of water. The preparation method comprises the following steps: uniformly mixing the negative ion powder, the bismuth-based activated carbon photocatalyst and water to obtain a suspension; adding a mixed cross-linking agent into the suspension, reacting at 65-75 DEG C for 5-8 hours, and filtering to obtain a bismuth-based negative ion-activated carbon composite material; and then adding the bismuth-based negative ion-activated carbon composite material and a dispersing agent into water-borne epoxy resin, and uniformly mixing to obtain the negative ion environment-friendly coating. The negative ion environment-friendly coating disclosed by the invention not only has the effects of releasing negative oxygen ions and preventing corrosion, but also can continuously adsorb and decompose free formaldehyde in air, so that the air purification effect of the coating is improved.
Description
Technical field [0001] The present application relates to the field of building materials coating technology, and more particularly, it involves an negative ionic environmentally friendly coating and a preparation method thereof. Background technique [0002] Negative ion coating contains negative ion powder, and negative ion flour is generally electrical stone powder and lanthanide, which is compared to composite mineral powder, and negative ion powder can ionize air, generate negative oxygen ions, help to improve the sleep quality of the occupant, while negative oxygen Ions also have the effect of purifying formaldehyde. Therefore, the negative ion coating is an environmentally friendly coating that can improve the living environment. Negative ion coatings can be applied to the wall or coated on furniture. [0003] In the relevant technique, the announcement No. CN105602401B is disclosed, which discloses aqueous environmentally-friendly negative ionic anti-corrosion coating and...
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