Antibacterial and anti-mildew soybean adhesive for plywood

A soybean adhesive and plywood technology, applied in the direction of adhesives, adhesive types, protein adhesives, etc., can solve the problems of antibacterial and anti-mildew, low bonding strength, etc., to improve anti-bacterial and anti-mildew performance, improve bonding strength and Water resistance, effect of improving bonding performance

Pending Publication Date: 2021-03-19
临泉县四红木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, biomass adhesives have problems of water resistance, antibacterial and

Method used

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  • Antibacterial and anti-mildew soybean adhesive for plywood
  • Antibacterial and anti-mildew soybean adhesive for plywood

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0023] Example 1

[0024] A plywood antimicilline soybean adhesive, a raw material comprising: soy protein 10g, composite curing agent 1g, surfactant 0.25 g, polyvinyl alcohol 0.5 g, water 65g; wherein the composite curing agent is a ring Mixtures of oxygen-modified chitosan quaternary ammonium salts and bisphenol A dihydrate glycene ether weight ratio of 3: 2;

[0025] During the preparation of epoxy modified chitosan quaternary ammonium salts, 3-chloro-2-hydroxypropyltrimethylammonium chloride graft chitosan 5g is mixed with 20 ml of water, then 1 g of ethanol Dihydrate glycene ether, 0.1 g of triethylamine mix, warmed to 95 ° C, stirring stirring reaction for 2 h, inserting the reaction liquid into a dialysis bag of 400 DA, immersed in water, dialysis 4h replacement of new water, continuing Dialysis 12h; then replaced the new water, continued dialysis for 12 h to give the concentrate, and the concentrated solution was freeze and dried, and pulverized to the epoxy modified chito...

Example Embodiment

[0026] Example 2

[0027] A plywood antimicrobial soybean adhesive, the raw material comprising: soy protein 10g, composite curing agent 1.2g, surfactant 0.15 g, polyvinyl alcohol 0.7 g, water 55g; wherein the composite curing agent is Epoxy modified chitosan quaternary ammonium salt and bisphenol A dihydrate glycerol ether weight ratio of 2: 1;

[0028] During the preparation of epoxy modified chitosan quaternary ammonium salts, 3-chloro-2-hydroxypropyltrimethylammonium chloride graft chitosan is mixed with 20 ml of water, then 0.8 g of B 2 Alcohol dihydrate glycene ether, 0.16 g of triethylamine mix, warmed to 85 ° C, stirring the stirring reaction for 3 h, in the dialysis bag of the reaction liquid into the dialysis bag, immersed in water, dialysis 4h replacement of new water, Dialysis was continued 12H; then replaced the new water, continued dialysis for 12 h to give the concentrate, and the concentrated solution was freeze and dried, and pulverized the epoxy modified chitosan...

Example Embodiment

[0029] Example 3

[0030] A plywood antimicilline soybean adhesive, a raw material comprising: soy protein 10g, composite curing agent 1.1g, surfactant 0.2 g, polyvinyl alcohol 0.6 g, water 60g; wherein the composite curing agent is Epoxy modified chitosan quaternary ammonium salt and bisphenol A dioxidant glycene ether weight ratio of 3.5: 2;

[0031] During the preparation of epoxy modified chitosan quaternary ammonium salts, 3-chloro-2-hydroxypropyltrimethylammonium chloride graft chitosan 5g was mixed with 20 ml of water, then 0.9 g of B2 Alcohol dihydrate glycene ether, 0.18 g of triethylamine mix, warmed to 90 ° C, heat-insulation stirring reaction 2.5 h, inserted into the dialysis bag of the reaction liquid into a dialysis bag, immersed in water, dialysis 4h replacement of new water Dialysis 12h; then replace the new water, continued dialysis for 12 h to give the concentrate, and the concentrated solution was freeze and dried, and pulverized to obtain an epoxy modified chit...

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PUM

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Abstract

The invention discloses an antibacterial and anti-mildew soybean adhesive for plywood. The antibacterial and anti-mildew soybean adhesive is prepared from the following raw materials in parts by weight: 100 parts of soybean protein, 10-12 parts of a composite curing agent, 1.5-2.5 parts of a surfactant, 5-7 parts of polyvinyl alcohol and 550-650 parts of water; the composite curing agent is epoxymodified chitosan quaternary ammonium salt and bisphenol A diglycidyl ether. The antibacterial and mildew-resistant adhesive tape has good antibacterial and mildew-resistant performance and water-resistant bonding performance.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to an antibacterial and anti-mildew soybean adhesive for plywood. Background technique [0002] Plywood is a three-layer or multi-layer board-like material that is made of wood segments that are peeled into veneers or sliced ​​into thin wood, and then glued with adhesives. Usually, odd-numbered layers of veneers are used, and adjacent layers are The fiber directions of the veneers are glued perpendicular to each other. [0003] Adhesives commonly used in plywood are aldehyde adhesives, but aldehyde adhesives are easy to release formaldehyde, which is harmful to human health. With the improvement of people's awareness of environmental protection, formaldehyde-free and renewable biomass adhesives (such as soybean protein, starch, etc.) have become substitutes for aldehyde adhesives. However, biomass adhesives have the problems of water resistance, antibacterial and mildew resistan...

Claims

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Application Information

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IPC IPC(8): C09J189/00C09J11/06C09J11/08C08B37/08
CPCC08B37/003C08L2205/03C09J11/06C09J11/08C09J189/00C08L29/04C08L5/08C08K5/1515
Inventor 吴学磊
Owner 临泉县四红木业有限公司
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