Experts in the industry conducted comparative analysis of the two methods for eliminating formaldehyde in the current coating products to help consumers identify environmentally friendly products.
Physical adsorption
The formaldehyde in home improvement materials is everywhere, and splints, density boards, artificial boards, furniture, floors, paints, adhesives, and even sofas contain a lot of formaldehyde. The harmful components of formaldehyde are slowly volatile, and the release period is usually 3-15 years.
In response to this feature, the physical anti-formaldehyde products introduced by some paint manufacturers on the market use physical adsorption methods to adsorb free formaldehyde in the air through wall paints.
According to experts, this can, to a certain extent, reduce the risk of indoor formaldehyde pollution. However, the fundamentals cannot completely eliminate formaldehyde. As long as the environment changes, including the passage of time and the temperature, the free formaldehyde that the The possibility of release, there is still a hidden danger of secondary pollution of formaldehyde.
Chemical decomposition
Experts remind consumers that the dangers of formaldehyde pollution are highly correlated with skin allergies, respiratory infections, reduced immune system and even cancer. Therefore, in the selection of paints should be selected by the state authorities to test the certification, using chemical decomposition technology to deal with indoor formaldehyde paint products.
These products effectively decompose formaldehyde in the air through chemical reactions. Formaldehyde is chemically decomposed into water molecules that are harmless to humans and the environment. The entire process of chemically decomposing formaldehyde from such products is irreversible. Therefore, formaldehyde does not re-evaporate into the air after decomposition, which greatly reduces the hazard of formaldehyde.
For example, there is a “aldehyde net full effect†coating on the market, which has changed the disadvantages of other coatings for only physical adsorption of formaldehyde, and has a strong chemical decomposition of formaldehyde.
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