Low-formaldehyde triamine adhesive and method for preparing same

Abstract

The invention provides low-formaldehyde triamine adhesive and a method for preparing the same. The low-formaldehyde triamine adhesive comprises, by weight, 2100 parts of formaldehyde aqueous solution with the concentration of 36%, 1900 parts of melamine, 500 parts of water, 200 parts of sorbitol, 12 parts of formaldehyde absorptive agents and 8 parts of triethanolamine. The low-formaldehyde triamine adhesive and the method have the advantage that problems of excessively high content of formaldehyde in triamine adhesive in the prior art and high manufacturing cost can be solved by the aid of the low-formaldehyde triamine adhesive and the method.

Description

technical field [0001] The invention belongs to the technical field of interior decoration, and in particular relates to a low-formaldehyde triamine glue and a preparation method of the low-formaldehyde triamine glue. Background technique [0002] At present, more than 90% of interior decoration materials at home and abroad use formaldehyde-based adhesives. Therefore, no matter what formaldehyde reduction measures are taken, the final product will always release free formaldehyde, which will have varying degrees of impact on indoor air quality. . For the formed composite furniture, in order to reduce its formaldehyde emission or to improve the environmental protection level, the coating method, sealing method or aging method are generally used. The coating method is to apply a chemical substance that can chemically react with formaldehyde and decompose it on the surface of the furniture. When the formaldehyde inside the furniture migrates or diffuses to the surface, it is c...

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Problems solved by technology

The coating method is to apply a chemical substance that can chemically react with formaldehyde and decompose it on the surface of the furniture. When the formaldehyde inside the furniture migrates or diffuses to the surface, it is captured by the coating agent and degraded. The surface of furniture products is dense, and it is difficult for the coating agent to penetrate into the interior of the furniture to capture free formaldehyde. Therefore, its effect is limited to the surface effect. The time can be as long as 5 to 15 years, so the effect of this technology on reducing aldehydes is very limited

The sealing method is to coat part of the surface of the formed furniture with wax, paint, adhesives and other materials to seal free formaldehyde inside the furniture and slow down the release rate of formaldehyde. This method is simple and effective, but it is difficult to implement, especially It is difficult to seal the sawn section when paving the furniture room, and the sealing material itself will produce a large number of microscopic channels with the change of time and environmental conditions, so the long-term effect is difficult to maintain

The aging method is to store the finished furniture for a long time, so that the free formaldehyde in the furniture will naturally degrade with the extension of time and the change of temperature and humidity. This method has the advantage of not requiring material input, but due to the low ambient temperature under natural conditions, the kinetic energy of formaldehyde molecules Insufficient, unable to effectively overcome the adsorption energy and difficult to degrade naturally in a short period of time, which is intolerable for furniture producers and consumers

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