Formaldehyde-free preimpregnation glue and synthetic process thereof

Abstract

Formaldehyde-free preimpregnation glue is provided. The glue is characterized by comprising following raw materials by weight: 0.713 parts of ammonium bicarbonate, 4.65 parts of ammonia water having aconcentration of 25%, 2.558 parts of ammonium persulfate, 0.775 part of tert-butyl hydroperoxide the concentration of which is 70%, 4.2 parts of an emulsifier CO436, 0.775 part of sodium hydroxymethanesulfinate the concentration of which is 95%, 0.9 part of a defoamer, 1.24 parts of a surfactant OT-75, 5.6 parts of acrylic acid, 12.5 parts of methyl acrylate, 200 parts of styrene and 340 parts ofbutyl acrylate. Beneficial effects of the glue are that 1) raw materials are formaldehyde-free, a production process is formaldehyde-free, and the glue is formaldehyde-free; 2) preimpregnated decorative paper and veneer prepared by utilizing the glue are formaldehyde-free; 3) decorative paper prepared by utilizing the glue is soft and can be rolled and cut; 4) decorative paper prepared by utilizing the glue, when compared with traditional melamine-urea-formaldehyde impregnated bond paper, is not sticky due to damp, and can be stably stored for 1 year or longer; and 5) the glue has stable properties and can be stored at room temperature for 1 year or longer.

Description

technical field [0001] The invention relates to the field of prepreg, in particular to a formaldehyde-free prepreg and a synthesis process thereof. Background technique [0002] Prepreg is a necessary raw material for the production of prepreg paper. The existing prepreg has the following defects: 1) The impregnation performance is not good, and the properties of the finished paper produced are unstable; 2) If the impregnation amount of the finished paper produced is small, the paper texture The improvement is not obvious; the amount of impregnation is large, it is easy to stick, and the printing performance drops sharply; 3) The problems of decolorization and yellowing, and discoloration are obvious. Contents of the invention [0003] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a kind of formaldehyde-free prepreg, it is characterized in that: in parts by mass, it comprises the following raw materials: ...

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Problems solved by technology

[0002] Prepreg is a necessary raw material for the production of prepreg paper. The existing prepreg has the following defects: 1) The impregnation performance is not good, and the properties of the finished paper produced are unstable; 2) If the impregnation amount of the finished paper produced is small, the paper texture The improvement is not obvious; the amount of impregnation is large, it is easy to stick, and the printing performance drops sharply; 3) Decolorization and yellowing, the problem of discoloration is obvious

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