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Veneer glue and preparation method thereof

A kind of veneer, environmental protection technology, applied in the direction of monocarboxylate copolymer adhesive, adhesive type, adhesive additives, etc., can solve the problem of veneer glue not environmental protection and lamination effect, etc., achieve good anti-aging effect, Good acid and alkali resistance, long-lasting flexibility

Active Publication Date: 2015-09-16
佛山永恒达新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a veneer glue and a preparation method thereof. The veneer glue is suitable for laminating veneer and fireproof boards, and can also be used for laminating veneer and calcium silicate boards, splints, and high-density boards. , to solve the above-mentioned technical problems that veneer glue is not environmentally friendly and the bonding effect needs to be further improved in the above-mentioned prior art

Method used

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  • Veneer glue and preparation method thereof
  • Veneer glue and preparation method thereof
  • Veneer glue and preparation method thereof

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preparation example Construction

[0033] The present invention also provides the preparation method of veneer glue, comprising the steps of:

[0034] (1) Put deionized water in the reactor, add polyvinyl alcohol to heat up and dissolve, and cool down to 75-85°C;

[0035] (2) Put into the dropping tank after metering the reaction monomer vinyl acetate, vinyl tert-carbonate, n-butyl methacrylate, acrylic acid, and methacrylic acid and mix uniformly;

[0036] (3) Add special cross-linking monomers, environmentally friendly reactive anionic emulsifiers, and environmentally friendly reactive nonionic emulsifiers into the reactor;

[0037] (4) Add the mixed monomers dropwise, and simultaneously add 0.1 to 0.2% of the total weight of the monomers as an initiator, and complete the dropwise addition within 3 to 5 hours;

[0038] (5) After the dropwise addition is completed, the temperature is raised to 85-95 ° C for 40-60 minutes;

[0039] (6) Cool down to 35-45°C, add environmentally friendly plasticizers and preser...

Embodiment 1

[0044] The veneer glue in the present embodiment comprises the following raw material composition according to parts by weight:

[0045]143 parts of vinyl acetate, 61 parts of vinyl tertiary carbonate, 20 parts of n-butyl methacrylate, 3 parts of acrylic acid, 3.2 parts of methacrylic acid, 52 parts of environmental plasticizer, 18 parts of polyvinyl alcohol, tributyl citrate 4 parts, 3.5 parts of sodium vinyl sulfonate, ER-102 parts of Japan Adico non-ionic reactive emulsifier, 430 parts of deionized water and 2 parts of preservative.

[0046] Its preparation method comprises the following steps:

[0047] (1) Put deionized water in the reactor, add polyvinyl alcohol to heat up and dissolve, and cool down to 75-85°C;

[0048] (2) Put into the dropping tank after metering the reaction monomer vinyl acetate, vinyl tert-carbonate, n-butyl methacrylate, acrylic acid, and methacrylic acid and mix uniformly;

[0049] (3) Add special cross-linking monomers, environmentally friendly...

Embodiment 2

[0057] The veneer glue in the present embodiment comprises the following raw material composition according to parts by weight:

[0058] 200 parts of vinyl acetate, 85 parts of vinyl tertiary carbonate, 46 parts of n-butyl methacrylate, 6.5 parts of acrylic acid, 5.8 parts of methacrylic acid, 82 parts of environmentally friendly plasticizers, 32 parts of polyvinyl alcohol, tributyl acetyl citrate 7.9 parts of ester, 4 parts of sodium allyl sulfonate, ER-204 parts of Japan Adico non-ionic reactive emulsifier and 530 parts of deionized water.

[0059] Its preparation method comprises the following steps:

[0060] (1) Put deionized water in the reactor, add polyvinyl alcohol to heat up and dissolve, and cool down to 75-85°C;

[0061] (2) Put into the dropping tank after metering the reaction monomer vinyl acetate, vinyl tert-carbonate, n-butyl methacrylate, acrylic acid, and methacrylic acid and mix uniformly;

[0062] (3) Add special cross-linking monomers, environmentally fr...

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Abstract

The invention discloses a veneer glue and a preparation method thereof. The veneer glue is composed of the following raw materials: vinyl acetate, vinyl versatate, n-butyl methacrylate, acrylic acid, methacrylic acid, an environment-friendly plasticizer, polyvinyl alcohol, a special cross-linking monomer, an environmentally reactive anionic emulsifying agent, an environmentally reactive nonionic emulsifying agent and deionized water. The veneer glue finished product does not contain formaldehyde, heavy metal, halide and the like, and meets the state promulgated Interior Decoration Material Adhesive Harmful Substance Limit GB18583-2008 standard. The veneer glue is nontoxic, odor-free, safe and reliable. When the glue is used in fireproof board and veneer binding, the veneer is prevented from yellowing, and has a good anti-aging effect. With the glue, the veneer is flexible, and can resist bending and glue failure. The veneer can resist glue failure after 7 days of soaking in 45 DEG C water.

Description

technical field [0001] The invention relates to the field of water-based adhesives, in particular to a veneer glue and a preparation method thereof. Background technique [0002] Veneer glue is a kind of glue mainly used for lamination of fireproof board (melamine board), plywood and natural veneer. At present, hot melt adhesive or urea-formaldehyde adhesive is generally used. Hot-melt adhesive is an oil-based adhesive, which needs to be dissolved before use. It also contains benzene solvents, pollutes the atmosphere, and seriously endangers human health. In addition, using hot-melt adhesive to stick veneer is easy to age, and affected by the climate, the veneer will start to yellow after half a year. The glue will fall off. The urea-formaldehyde glue is water-based, but it contains a lot of formaldehyde and urea, which is not environmentally friendly. And adopt hot-melt glue or urea-formaldehyde glue all to exist the problem that needs to be improved further, as: problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J131/04C09J11/06C08F218/08C08F218/00C08F220/18C08F220/06C08F2/26C08F2/30
Inventor 陈见玲
Owner 佛山永恒达新型建材有限公司
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