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Wood adhesive

An adhesive and wood technology, applied in the directions of adhesive additives, adhesive types, polyurea/polyurethane adhesives, etc., can solve problems such as human health hazards, and achieve widened application environment, excellent bonding strength, good water resistance. performance effect

Inactive Publication Date: 2018-02-09
张森
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing adhesives contain formaldehyde, which is harmful to human health when used

Method used

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  • Wood adhesive
  • Wood adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment I

[0013] A wood adhesive, comprising the following ingredients in weight percentage: 1.0% of ordinary polyvinyl alcohol, 2.0% of acetylated polyvinyl alcohol, 0.1% of compound emulsifier, 24.5% of mixed monomer, 0.01% of initiator ammonium persulfate, talcum powder 1.8%, carboxylated styrene-butadiene latex 1.5%, emulsified polyisocyanate 5.9%, high-functionality polyisocyanate 4.0%, water 59.19%.

Embodiment II

[0015] A wood adhesive, comprising the following ingredients in weight percentage: 1.7% of ordinary polyvinyl alcohol, 5.0% of acetylated polyvinyl alcohol, 0.2% of composite emulsifier, 31.4% of mixed monomer, 0.05% of initiator ammonium persulfate, talcum powder 4.5%, carboxylated styrene-butadiene latex 4.3%, emulsified polyisocyanate 8.9%, high-functionality polyisocyanate 7.7%, water 40.95%.

Embodiment III

[0017] A wood adhesive, comprising the following ingredients in weight percentage: 1.3% of ordinary polyvinyl alcohol, 3.7% of acetylated polyvinyl alcohol, 0.13% of composite emulsifier, 27.8% of mixed monomer, 0.03% of initiator ammonium persulfate, talcum powder 3.2%, carboxylated styrene-butadiene latex 3.1%, emulsified polyisocyanate 6.9%, high-functionality polyisocyanate 6.5%, water 47.34%.

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Abstract

The invention relates to a wood adhesive and belongs to the field of polymer chemistry. Its main components: ordinary polyvinyl alcohol, acetylated polyvinyl alcohol, compound emulsifier, mixed monomer, initiator ammonium persulfate, talcum powder, carboxylated styrene-butadiene latex, isocyanate and water. The wood adhesive of the present invention has excellent bonding strength, good water resistance, does not contain any organic solvents, formaldehyde, phenol and other harmful substances, broadens the application environment, and solves the long-term problem that has plagued the practical application of wood adhesives.

Description

technical field [0001] The invention relates to a wood adhesive, in particular to a wood adhesive. Background technique [0002] Adhesives are now widely used in various fields such as transportation, instrumentation, electronic appliances, textiles, construction, wood processing, interior decoration, and daily necessities. Most of the existing adhesives contain formaldehyde, which is harmful to human health when used. Contents of the invention [0003] The object of the present invention is to overcome the defects of the above-mentioned prior art and provide a kind of wood adhesive, which does not contain formaldehyde, has good water resistance and is not easy to age. [0004] In order to achieve the above object, the technical solution adopted by the present invention is: a kind of wood adhesive, comprising the following components by weight percentage: [0005] [0006] Further, the degree of alcoholysis of the common polyvinyl alcohol is 88%. [0007] Further, th...

Claims

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Application Information

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IPC IPC(8): C09J4/02C09J4/06C09J175/14C09J11/04C09J11/06
CPCC09J4/06C09J11/04C09J11/06C09J175/14
Inventor 张森
Owner 张森
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