High-moisture resistance urea-formaldehyde resin adhesive and preparation method thereof
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A urea-formaldehyde resin and adhesive technology, applied in adhesives, non-polymer adhesive additives, aldehyde/ketone condensation polymer adhesives, etc., can solve problems such as high prices, achieve high production efficiency, expand the use environment and use range, the effect of strong moisture-proof performance
Active Publication Date: 2015-04-01
DARE WOOD BASED PANEL GRP
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However, its price is high, and it is difficult fo
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Embodiment 1
[0024] A high moisture-proof urea-formaldehyde resin adhesive, comprising the following raw materials in parts by weight:
[0025] 45 parts of formaldehyde, 1 part of water, 22 parts of urea, 8 parts of compound additives, 0.1 part of sodium methyl silicate;
[0026] The weight and number of parts of the composite auxiliary agent are: 0.1 part of polyvinyl alcohol, 1 part of melamine, and 1 part of ethylene glycol.
Embodiment 2
[0028] A high moisture-proof urea-formaldehyde resin adhesive, comprising the following raw materials in parts by weight:
[0029] 55 parts of formaldehyde, 18 parts of water, 30 parts of urea, 30 parts of compound additives, 0.5 parts of sodium methyl silicate;
[0030] The weight and number of parts of the composite auxiliary agent are: 1 part of polyvinyl alcohol, 95 parts of melamine, and 10 parts of ethylene glycol.
Embodiment 3
[0032] A high moisture-proof urea-formaldehyde resin adhesive, comprising the following raw materials in parts by weight:
[0033] 50 parts of formaldehyde, 10 parts of water, 16 parts of urea, 19 parts of compound additives, 0.3 parts of sodium methyl silicate;
[0034] The weight and parts of the composite auxiliary agent are: 0.5 parts of polyvinyl alcohol, 45 parts of melamine, and 5 parts of ethylene glycol.
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Abstract
The invention belongs to the technical field of adhesives for artificial fiber plates, relates to a urea-formaldehyde resin adhesive and especially relates to a high-moisture resistance urea-formaldehyde resin adhesive and a preparation method thereof. The high-moisture resistance urea-formaldehyde resin adhesive comprises, by weight, 45-55 parts of formaldehyde, 1-18 parts of water, 22-30 parts of urea, 8-30 parts of a composite assistant, and 0.1-0.5 parts of methanesiliconic acid sodium salt. The composite assistant is obtained by mixing of 0.1-1 part by weight of polyvinyl alcohol, 1-95 parts by weight of melamine and 1-10 parts by weight of glycol. The invention discloses a preparation method of the high-moisture resistance urea-formaldehyde resin adhesive. The high-moisture resistance urea-formaldehyde resin adhesive has good viscosity and a low cost. The preparation method has simple processes and high production efficiency. An artificial board with the high-moisture resistance urea-formaldehyde resin adhesive has high moisture resistance and a very low water absorption thickness swelling rate, greatly widens an artificial board use environment and range and prolongs a board service life.
Description
technical field [0001] The invention belongs to the technical field of adhesives for artificial fiberboards, and relates to a urea-formaldehyde resin adhesive, in particular to a highly moisture-proof urea-formaldehyde resin adhesive and a preparation method thereof. Background technique [0002] Due to its uniform fiber structure and high bonding strength between fibers, medium and high-density fiberboard has better static bending strength, plane tensile strength, and elastic modulus than particleboard, and has good mechanical processing performance, such as sawing, drilling, etc. , slotting, tenoning, sanding and engraving, the edge of the board can be processed according to any shape, and the surface is smooth after processing. It is widely used in high-end furniture manufacturing, interior decoration, audio shells, musical instruments, interior decoration of vehicles and ships, etc. . Since the main raw material is wood, the board has problems such as water absorption a...
Claims
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Application Information
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