reduce VOC content and toxicity in coatings?

Reducing the VOC content and toxicity in coatings is the only way for the development of China's coatings industry, so we must take some appropriate technical means to eradicate or reduce.

1 from the source to reduce the VOC content in the coating

To reduce the VOC content in coatings from the source, we must try our best to reduce and limit the production of low-solid solvent-based coatings to minimize VOC emissions.

a partial replacement of traditional solvent-based coatings with water-based coatings

B Powder coatings to partially replace solvent-based coatings

c with high solids coatings to reduce the VOC content of solvent-based coatings

d partial replacement of solvent-based coatings with solvent-free coatings

e uses light curing coatings to reduce VOC emissions

2 Use environmentally friendly materials to reduce and mitigate VOC and toxicity in coatings

a mixed solvent is used to replace the aromatic hydrocarbon in the coating, such as petroleum ether and ethyl acetate instead of toluene.

B uses high boiling point environmental protection solvent to replace some smelly organic solvents. PGDA (propylene glycol diacetate) has strong dissolving power and is a strong solvent for alkyd resin, acrylic resin, polyester resin, nitrocellulose resin, vinyl acetate resin and PU curing agent.

c t-butyl acetate is used to replace harmful VOC in coatings. t-butyl acetate solvent is a non-VOC, HAPs (harmful air pollutants) substance, which has good solubility in various substances. It is a substitute for a variety of volatile organic compounds and harmful air substances, and its volatilization is less.

D uses exempted solvents to replace harmful VOC in coatings. PCE is environmentally friendly, has low odor, good leveling, good solubility, can be completely dried in various self-drying coatings, and has no residue in the coating film.

e with supercritical carbon dioxide to replace the paint solvent, only retain the original solvent total 1/5~1/3 of the slow volatile solvent, can obtain good paint quality, and can greatly reduce the pollution of the environment of volatile organic solvent emissions.