Adhesive for indoor plywood and preparation method of adhesive

Abstract

The invention discloses an adhesive for indoor plywood and a preparation method of the adhesive. The adhesive comprises the following components in parts by mass: 10-12 parts of bentonite, 16-18 parts of inorganic packing, 15-25 parts of urea resin, 2-3 parts of reinforcing agent, 10-14 parts of octaphenyl polyoxyethyiene, 1-2 parts of acidic agent, 10-20 parts of nano-silica, 1-2 parts of thickener, 6-8 parts of polyvinyl alcohol, 5-7 parts of polyaspartic acid, 4-6 parts of calcium sulphoaluminate, 6 to 8 parts of attapulgite and 40-80 parts of distilled water. The adhesive for the indoor plywood provided by the invention has good viscosity property and corrosion-resistant and antistatic functions. Formaldehyde contained in the adhesive is very low in content, the water resistance and aging resistance of the adhesive are greatly improved, and the service life of the adhesive is prolonged by six months to one year. The adhesive provided by the invention is mainly applied to adhesion of the indoor plywood.

Description

technical field [0001] The invention relates to the technical field of plywood, in particular to an adhesive for indoor plywood and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, people attach great importance to health, and the formaldehyde released by today's indoor plywood poses a serious threat to human health. When the formaldehyde content released by the new indoor plywood is very high, people often use the dilution method to raise a few potted plants in the house, such as pothos and spider plants are very effective, but the absorption speed of these plants cannot keep up with the volatilization of formaldehyde. Speed, so the effect of using plants to remove formaldehyde is very small. In addition, some physical materials are used, such as activated carbon and Maya blue. They themselves have a porous structure and can effectively absorb harmful gases in the air. However, the disadvantage of activated carb...

AI Technical Summary

Problems solved by technology

When the formaldehyde content released by the new indoor plywood is very high, people often use the dilution method to raise a few potted plants in the house, such as pothos and spider plants are very effective, but the absorption speed of these plants cannot keep up with the volatilization of formaldehyde. Speed, so the effect of using plants to remove formaldehyde is very small

In addition, some physical materials are used, such as activated carbon and Maya blue. They themselves have a porous structure and can effectively absorb harmful gases in the air. However, the disadvantage of activated carbon is that it needs to be returned to the factory after the absorption is full. It needs to be activated to continue to use. Generally, it is thrown away after being used once, which is a waste of materials.

The above method only dilutes the concentration of formaldehyde and does not cure the symptoms. The release of formaldehyde from plywood is a long-term process.