Low formaldehyde resin adhesive for decorative impregnating paper and preparation method thereof

Abstract

The invention discloses a low formaldehyde resin adhesive for decorative impregnating paper and a preparation method thereof, wherein the resin adhesive contains: 60% by weight of 37% formaldehyde, 40% by weight of 98% urea, and 1.0-1.5% by weight of composite auxiliary agents which contains 0.2-0.3% by weight of curing agent, 0.5-0.8% by weight of cross-linking agent, and 0.3-0.4% by weight of reinforcing agent. The resin adhesive has the characteristics of low free formaldehyde content and high water resistance, and enhances the internal bonding force of the resin adhesive while reduces the mol ratio, which reduces the free formaldehyde releasing amount of the impregnating paper in the impregnating paper production process, and makes sure the each physical index demand of the decorative plate in the secondary hot pressing process.

Description

technical field

[0001] The invention relates to a resin adhesive adhesive, in particular to a low-formaldehyde resin adhesive for decorative film paper and a preparation method thereof. Background technique

[0002] Resin adhesive impregnated paper decoration is made of decorative paper printed with decorative patterns and monochrome, impregnated with resin adhesive, used for facing particleboard, plywood, fiberboard, etc. The resin adhesives used for impregnating decorative paper mainly include thermoplastic resin adhesives, and thermosetting resin adhesives include urea-formaldehyde resin adhesives, polyurethane, phenolic resin adhesives, epoxy resin adhesives, melamine resin adhesives, etc. Dipropylene phthalate resin adhesive impregnated with adhesive film paper to decorate wood-based panels requires strict technology, the price of organic raw materials for synthesizing monomers is relatively expensive, and the cost of resin adhesive is high, which limits its wide applic...

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