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Environment-friendly efficient binding agent for plywood and preparation method of environment-friendly efficient binding agent

A plywood and adhesive technology, applied in the directions of polymer adhesive additives, non-polymer adhesive additives, adhesives, etc., can solve the problems of poor adhesion performance and high cost of use, and achieve adhesion strength and water resistance. High, long service life, improve the effect of sterilization and mildew prevention

Inactive Publication Date: 2017-10-10
合肥易美特建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although formaldehyde-free adhesives do not cause free formaldehyde to be released from wood-based panel products and have good safety performance, due to high cost of use and poor adhesion performance, wood-based panel production is less used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of environment-friendly high-efficiency adhesive for plywood of the present embodiment comprises the raw material of following weight portion:

[0034] 5 parts of vinyl acetate, 0.1 parts of emulsifier, 6 parts of water glass, 15 parts of polyvinyl alcohol, 0.3 parts of anti-mold and fungicide, 10 parts of thickener, 15 parts of filler, 6 parts of cellulose ether, 10 parts of acrylic resin , 3 parts of starch, 40 parts of water.

[0035] The emulsifier in this example is sodium dedecylbenzenesulfonate LAS.

[0036] Water glass in the present embodiment is the aqueous solution of silicate, and its silicon dioxide content is at 28-34%.

[0037] The anti-mold and fungicide in this example is a mixture of nano zinc oxide, potassium sorbate and anti-mold and fungicide KL-303 in a weight ratio of 2:1:2.

[0038] The thickener in this embodiment is a mixture of sodium alginate, seaweed propylene glycol ester, and sodium carboxymethylcellulose in a weight ratio of 2:1:...

Embodiment 2

[0046] A kind of environment-friendly high-efficiency adhesive for plywood of the present embodiment comprises the raw material of following weight portion:

[0047] 7 parts of vinyl acetate, 0.5 parts of emulsifier, 8 parts of water glass, 25 parts of polyvinyl alcohol, 0.7 parts of anti-mold and fungicide, 20 parts of thickener, 17 parts of filler, 10 parts of cellulose ether, 20 parts of acrylic resin , 7 parts of starch, 60 parts of water.

[0048] The emulsifier in this example is nonylphenol polyoxyethylene ether OP-10.

[0049] Water glass in the present embodiment is the aqueous solution of silicate, and its silicon dioxide content is at 28-34%.

[0050] The anti-mold and fungicide in this example is a mixture of nano zinc oxide, potassium sorbate and anti-mold and fungicide KL-303 in a weight ratio of 2:1:2.

[0051] The thickener in this embodiment is a mixture of sodium alginate, seaweed propylene glycol ester, and sodium carboxymethylcellulose in a weight ratio of ...

Embodiment 3

[0059] A kind of environment-friendly high-efficiency adhesive for plywood of the present embodiment comprises the raw material of following weight portion:

[0060] 6 parts of vinyl acetate, 0.3 parts of emulsifier, 7 parts of water glass, 20 parts of polyvinyl alcohol, 0.5 parts of anti-mold and fungicide, 15 parts of thickener, 16 parts of filler, 8 parts of cellulose ether, 15 parts of acrylic resin , 5 parts of starch, 50 parts of water.

[0061] The emulsifier in this example is nonylphenol polyoxyethylene ether Tx-10.

[0062] Water glass in the present embodiment is the aqueous solution of silicate, and its silicon dioxide content is at 28-34%.

[0063] The anti-mold and fungicide in this example is a mixture of nano zinc oxide, potassium sorbate and anti-mold and fungicide KL-303 in a weight ratio of 2:1:2.

[0064] The thickener in this embodiment is a mixture of sodium alginate, seaweed propylene glycol ester, and sodium carboxymethylcellulose in a weight ratio of...

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Abstract

The inventiondiscloses an environment-friendly efficient binding agent for plywood. The binding agent is prepared from raw materials in parts by weight as follows: 5-7 parts of vinyl acetate, 0.1-0.5 parts of an emulsifier, 6-8 parts of water glass, 15-25 parts of polyvinyl alcohol, 0.3-0.7 parts of an anti-mildew bactericide, 10-20 parts of a thickening agent, 15-17 parts of a filling agent, 6-10 parts of cellulose ether, 10-20 parts of acrylic resin, 3-7 parts of starch and 40-60 parts of water. The efficient binding agent is higher in binding strength and water resistance, better in storage stability, free of toxic substances such as formaldehyde, benzene, toluene and the like and is completely non-toxic, harmless and environment-friendly, and besides, the efficient binding agent is short in curing time, long in effective service life and better in permeability. Meanwhile, a preparation method of the binding agent is lower in cost, adopts available raw materials and simple technology, is easy to operate, facilitates realization of industrial production, and has higher practical value and good application prospect.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an environment-friendly and high-efficiency adhesive for plywood and a preparation method thereof. Background technique [0002] At present, the adhesives used in plywood production are still mainly formaldehyde-based adhesives. Among them, phenolic resin adhesives are mostly used to produce outdoor type I plywood, and urea-formaldehyde resin adhesives are mostly used to produce indoor type II plywood. In the process of production and use, free formaldehyde will be released from the connected products, which will endanger people's health. As consumers' awareness of environmental protection is increasing, the production of formaldehyde-based adhesives, especially urea-formaldehyde resin adhesives for bonding indoor products, is under pressure. increasingly strict restrictions. The release of harmful formaldehyde gas can be reduced by improving the production process of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/06C09J11/04C09J11/06C09J11/08
CPCC09J4/06C09J11/04C09J11/06C09J11/08
Inventor 朱明静
Owner 合肥易美特建材有限公司
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