Method for preparing photocatalyst dried polyester paint

A photocatalyst, polyester paint technology, applied in driers, polyester coatings, chemical instruments and methods, etc., can solve problems such as poor flexibility, human toxicity, environmental pollution, etc., to improve adhesion, degrade toxic and harmful gases, The effect of improving the photocatalytic efficiency

Inactive Publication Date: 2018-08-24
吴刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is aimed at the poor flexibility of the current saturated polyester paint, which is easy to be brittle and cracked when it is stressed. Once the paint film is damaged, it is not easy to repair. The curing agent used in the polyester paint contains aromatic i...

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0023]In parts by weight, add 50-60 parts of distilled water, 10-15 parts of sodium dodecylsulfonate, 4-5 parts of carbonic acid Sodium hydrogen, start the stirrer to stir at a speed of 200-220r / min, raise the temperature in the water bath to 70-80°C, add 40-45 parts of acrylic acid and 20-30 parts of methacrylic acid into the three-necked flask, and continue the reaction for 10-15 minutes to obtain Seed emulsion; in parts by weight, add 20 to 30 parts of epoxidized soybean oil to the above-mentioned three-necked flask, and then use a dropping funnel to drop 1 to 3 parts of over- Potassium sulfate, after the dropwise addition, keep the temperature for 30-40 minutes, continue to heat up to 90-100 °C, keep the temperature for 45-55 minutes, cool down to 55-60 °C, adjust the pH to 6.0-7.0 with 20% ammonia water by mass fraction, Discharge to obtain acrylate emulsion; add 40-50mL of absolute ethanol and 2-3g of carbon nanotubes to the ultrasonic disperser, control the ultrasonic f...

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Abstract

The invention discloses a method for preparing photocatalyst dried polyester paint and belongs to the technical field of coating preparation. Epoxidized soybean oil in acrylate emulsion has strong oxidation resistance and can achieve an effect of promoting cured crosslinking of the polyester paint. A hydroxyl condensation dehydration reaction between the epoxidized soybean oil and acrylate is carried out so as to form a network interpenetrating crosslinked structure, the epoxidized soybean oil contains epoxy groups, ether bonds, hydroxyl and other polar groups and active groups and is combinedwith titanium dioxide to prepare photocatalyst dried powder, synergistic effects and photosensitization are achieved between carbon nano tubes and titanium dioxide molecules, the photocatalytic activity of the nano titanium dioxide can be improved, the photocatalytic efficiency is improved, degradation and volatilization of the titanium dioxide on polluting solvents can be enhanced, and a dryingeffect is achieved. Moreover, toxic and harmful gases in air such as formaldehyde can be effectively degraded, multiple types of bacteria can be effectively killed, and the polyester paint has deodorization property and anti-fouling performance and is wide in application prospects.

Description

technical field [0001] The invention discloses a preparation method of photocatalyst-dried polyester paint, which belongs to the technical field of paint preparation. Background technique [0002] Polyester paint is also called unsaturated polyester paint. It is a multi-component paint and is a thick paint made of polyester resin as the main film-forming substance. The paint film of polyester paint is plump, and layer thickness face is hard. Polyester paint has varnish kind equally, is polyester varnish. Need to be cured in Polyester Paint construction process, the deal of these curing agents accounts for the total deal 1 / 3rd of paint. The comprehensive performance of the paint film of polyester paint is excellent. Because of the use of curing agent, the hardness of the paint film is higher, hard and wear-resistant, high in richness, and resistant to humidity and heat, dry heat, acid and alkali oils, solvents and various chemicals. High insulation. [0003] In the 20th c...

Claims

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Application Information

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IPC IPC(8): C09D167/02C09D5/14C09D5/16C09D7/65C09D7/61C09F9/00
Inventor 吴刚何伟仁陈可
Owner 吴刚
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