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Repairable veneer adhesive and synthesizing method thereof

An adhesive and veneer technology, applied in the direction of adhesive, monocarboxylic acid ester copolymer adhesive, polymer adhesive additive, etc. Repair problems, improve wet adhesion performance, solve the effect of formaldehyde release

Active Publication Date: 2014-11-12
TAIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of people's material and cultural living standards, the requirements for furniture are getting higher and higher. In the past, furniture made of MDF, blockboard and ordinary wood can no longer meet people's requirements in terms of aesthetics and practicability.

Method used

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  • Repairable veneer adhesive and synthesizing method thereof
  • Repairable veneer adhesive and synthesizing method thereof
  • Repairable veneer adhesive and synthesizing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Formula: total amount = 1000kg

[0029]

[0030]

[0031] Production Process:

[0032] 1. Dissolve 1.5kg ammonium persulfate in 28.5kg water to obtain a 5% initiator aqueous solution with a mass fraction;

[0033] 2. Mix and stir 5kg of methacrylic acid, 5kg of N-hydroxyethylacrylamide, 5kg of bis(N-ethyleneureidoethyl) maleate and 268.5kg of vinyl acetate to make a mixed monomer co- 283.5kg;

[0034] 3. After the equipment is checked to be normal, put in 603kg of tap water, start the reactor with a condenser, add 15kg of polyvinyl alcohol PVABP1788, 5kg of PVA2099 and 10kg of industrial gelatin, raise the temperature to 85°C and keep it warm for 50 minutes to fully dissolve the polyvinyl alcohol and industrial gelatin;

[0035] 4. Cool down to 50°C and add 1.5kg of acrylamido isopropylsulfonic acid, 1kg of sodium alkylphenol ether sulfosuccinate, 1.5kg of sodium bicarbonate and 1.0kg of defoamer F681.0kg and stir evenly, then quickly add vinyl acetate Ester 31...

Embodiment 1

[0037] The product technical index that embodiment 1 obtains is detected according to the HG / T2727-2010 standard:

[0038] Appearance: milky white viscous liquid

[0039] PH value: 4-5

[0040] Viscosity: 28000~32000CPS, Brookfieldsp.4, 12rpm., 25℃

[0041] Solid content: 36.2±1%

[0042] Minimum film forming temperature: 5°C, glass transition temperature: about 20°C

[0043] Dry state compressive shear strength: 10.2MPa

[0044] Free formaldehyde: no

Embodiment 2

[0046] Formula: total amount = 1000kg

[0047]

[0048]

[0049] Production Process:

[0050] 1. Dissolve 1.8kg of ammonium persulfate in 34.2kg of water to obtain a 5% aqueous initiator solution;

[0051] 2. Mix and stir 6kg of methacrylic acid, 6kg of N-hydroxyethylacrylamide, 6kg of bis(N-ethyleneureidoethyl) maleate and 294.6kg of vinyl acetate to make a mixed monomer co- 312.6kg;

[0052] 3. After the equipment is checked to be normal, put in 548.5kg of tap water, start the reactor with condenser, add polyvinyl alcohol 12kgBP2488, 5kgBP0588, 8kgPVA1799 and 15kg of industrial gelatin, heat up to 88°C and keep warm for 55 minutes to make polyvinyl alcohol and industrial gelatin fully dissolved;

[0053]4. Cool down to 55°C and add 1.6kg of sulfosuccinate derivatives, 1.3kg of alkylphenol ether sulfosuccinate sodium salt, 1.8kg of sodium dihydrogen phosphate and 1.3kg of defoamer F681 and stir evenly, then quickly add acetic acid Vinyl ester 35.4kg and initiator aq...

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Abstract

The invention discloses a repairable veneer adhesive and a synthesizing method thereof. The repairable veneer adhesive mainly comprises tap water, polyvinyl alcohol, technical gelatin, emulsifying agents, initiating agents, methylacrylic acid, N-hydroxyethyl acrylamide, vinyl acetate, double (N-ethylene-urea-based ethyl) maleate, Bayer waterborne polyurethane resin, plasticizers, buffering agents, antifoaming agents and preservatives. During preparation of the repairable veneer adhesive, firstly, the polyvinyl alcohol and the technical gelatin are used as protective adhesive bodies to synthesize self-crosslinking polyvinyl acetate copolymer modified emulsion, then, a thermal-activation-type polyurethane adhesive DISPERCOLLU54 is added into the copolymer emulsion, and finally, the veneer adhesive which is excellent in performance is prepared. The veneer adhesive has certain repairability. Compared with a traditional urea resin veneer adhesive, the adhesive prepared through the preparation method has the advantages of being repairable, convenient to use and harmless to the environment and human bodies.

Description

technical field [0001] The invention relates to an adhesive preparation technology, in particular to a repairable veneer veneer adhesive and a synthesis method thereof. Background technique [0002] With the continuous improvement of people's material and cultural living standards, the requirements for furniture are getting higher and higher. In the past, furniture made of MDF, blockboard and ordinary wood can no longer meet people's requirements in terms of aesthetics and practicability. . For this reason, a veneer veneer technology has appeared on the market. This technology is to laminate beech, rosewood, red sandalwood, walnut, teak, ash, etc. on the surface of MDF, blockboard and ordinary wood. And the veneer of precious natural tree species such as cherry wood. The veneer maintains the natural texture and color of precious tree species, and through the lamination of natural veneer with MDF, blockboard and ordinary wood, the added value of the product is improved, and...

Claims

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Application Information

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IPC IPC(8): C09J131/04C09J11/08C09J11/00C08F218/08C08F220/06C08F220/58C08F222/22C08F2/26
Inventor 刘维均罗平周闰阳陆斌徐建宋志强
Owner TAIZHOU UNIV
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