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Isocynate adhesive

A technology of isocyanate and adhesive, which is applied in the field of wood adhesives, can solve the problems of great harm to human health, insufficient bonding strength, weak water resistance, etc., and achieve excellent bonding strength, no environmental pollution, and good water resistance Effect

Inactive Publication Date: 2018-03-06
张森
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing adhesives have residual formaldehyde, which is harmful to human health when used, and has weak water resistance and insufficient bonding strength.

Method used

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  • Isocynate adhesive
  • Isocynate adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment I

[0013] An isocyanate adhesive, comprising the following ingredients in weight percentage: polymethylene polyisocyanate 16.8%, sodium bisulfite 0.10%, urea 0.15%, polyvinyl alcohol 1.20%, corn starch 9.80%, carboxymethyl cellulose Sodium 1.10%, sodium bisulfate 0.15%, ammonium persulfate 0.05%, maleic acid 1.10%, sodium hydroxide 2.50%, boric acid 0.01%, water 66.59%.

Embodiment II

[0015] An isocyanate adhesive, comprising the following ingredients in weight percent: polymethylene polyisocyanate 20.50%, sodium bisulfite 0.55%, urea 0.75%, polyvinyl alcohol 4.50%, corn starch 24.50%, carboxymethyl cellulose Sodium 2.66%, sodium bisulfate 0.50%, sodium persulfate 0.18%, dimethylene succinic acid 3.65%, barium hydroxide 5.65%, borax 0.04%, water 36.67%.

Embodiment III

[0017] An isocyanate adhesive, comprising the following ingredients in weight percentage: polymethylene polyisocyanate 18.50%, sodium bisulfite 0.35%, urea 0.44%, polyvinyl alcohol 2.73%, corn starch 16.84%, carboxymethyl cellulose Sodium 1.87%, sodium bisulfate 0.28%, ammonium persulfate 0.10%, dimethylene succinic acid 2.35%, sodium hydroxide 4.15%, boric acid 0.02%, water 52.37%.

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Abstract

The invention relates to an isocyanate adhesive and belongs to the field of polymer chemistry. Its main components: polymethylene polyisocyanate, sodium bisulfite, urea, polyvinyl alcohol, corn starch, sodium carboxymethylcellulose, sodium bisulfate, peroxide initiator, dibasic esterification agent, Pasting tackifier, crosslinking agent, water. The isocyanate adhesive of the invention has excellent bonding strength, good water resistance, no environmental pollution, easy implementation and low price, reduces cost and broadens the application environment.

Description

technical field [0001] The invention relates to wood adhesives, in particular to an isocyanate 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 have residual formaldehyde, which is harmful to human health when used, and has weak water resistance and insufficient bonding strength. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide an isocyanate adhesive, which has good water resistance, no environmental pollution, easy implementation and low price. [0004] In order to achieve the above object, the technical solution adopted by the present invention is: an isocyanate adhesive comprising the following components by weight percentage: [0005] [0006] Further, the...

Claims

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Application Information

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IPC IPC(8): C09J175/04C08G18/64
CPCC09J175/04C08G18/6484
Inventor 张森
Owner 张森
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