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Strong-adhesion liquid wood adhesive powder

A technology of wood glue powder and liquid, applied in the direction of starch adhesive, adhesive type, adhesive additive, etc., which can solve the problems of corrosion, aging resistance, poor weather resistance, environmental pollution, and limited use range

Inactive Publication Date: 2012-10-03
东莞市康博士装饰材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from the above that although wood glue powder is widely used in the wood processing industry, decoration industry, and construction industry because of its excellent performance, its application range has been greatly restricted due to its corrosiveness, aging resistance, and poor weather resistance. Restrictions, it is difficult to meet the technical requirements of electronic information and aerospace industry
Because it contains formaldehyde and other toxic and harmful components to the human body, it pollutes the environment and damages health, so it is restricted in use

Method used

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  • Strong-adhesion liquid wood adhesive powder
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  • Strong-adhesion liquid wood adhesive powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment one: the prescription of strong liquid wood glue powder:

[0023]

[0024]

[0025] The starch is food grade cornstarch.

[0026] Wherein: the formula of described A-type material:

[0027]

[0028] The following method is used to make type A material:

[0029] (1) Put the distilled water into the polyvinyl alcohol dissolving kettle after being measured with a soft water metering tank;

[0030] (2) will drop into the polyvinyl alcohol dissolving kettle;

[0031] (3) heat up the polyvinyl alcohol dissolving tank, stir the temperature in the dissolving tank to 95°C for 1--4 hours;

[0032] (4) Vinyl acetate, butyl acrylate, acrylic acid, and methyl methacrylate are mixed and put into the monomer metering tank for subsequent use; the plasticizer is put into the plasticizer metering tank for subsequent use; ammonium persulfate is mixed with 10% The solution is put into the initiator metering tank for subsequent use; Baking soda is mixed with 10% solu...

Embodiment 2

[0043] Embodiment two: adopt the A-type material in embodiment one, the prescription of strong liquid wood glue powder is:

[0044]

Embodiment 3

[0045] Embodiment three: adopt the A-type material in embodiment one, the prescription of strong liquid wood glue powder is:

[0046]

[0047]

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Abstract

The invention discloses a strong-adhesion liquid wood adhesive powder, relates to the adhesive field, and particularly relates to an environment-friendly adhesive without wood adhesive powder. The strong-adhesion liquid wood adhesive powder comprises following components in parts by mass: 5-10% of polyvinyl alcohol, 5-8% of calcium chloride, 20-30% of calcium carbonate, 8-15% of starch, 25-35% of A material, 5-15% of diatomite, 0.2-1% of antifoaming agent, 0.2-1% of preservative, 0.3-1% of dispersant, 1-2% of plasticizer and 20-30% of water. The strong-adhesion liquid wood adhesive powder prepared by the above formula has strong adhesion, no benzene, no aldehyde, no toxicity and no harm, and is environment friendly, low in carbon, high in solid content, small in shrinkage, good in initial adhesion, fast in drying speed, resistant in freezing resistance and easy in gluing and the like.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to environment-friendly adhesives that do not contain wood glue powder. Background technique [0002] Wood glue powder is made of powdered urea-formaldehyde resin, reinforcing agent and curing agent. Dissolve it in water before use, and after mixing evenly, it can be widely used as an adhesive in the wood processing industry. It can be cold bonded, hot bonded. The glue has the characteristics of high bonding strength and easy storage. The amount of formaldehyde contained in E0 grade wood glue powder can be less than 0.5mg / L, while E1 grade is more than 0.5mg / L and less than 1.5mg / L, E2 is more than 1.5mg / L and less than 5mg / L. Basically, wood glue powder can only achieve E2 level now. If you want to achieve E1 or even E0 (without adding modifiers, that is, free formaldehyde capture agents), then there is only melamine modified urea-formaldehyde resin powder. The product can do it. It...

Claims

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Application Information

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IPC IPC(8): C09J131/04C09J129/04C09J103/02C09J11/04C08F218/08C08F220/18C08F220/06C08F220/14
Inventor 罗家斌黄定华熊永友罗家秀李鹰
Owner 东莞市康博士装饰材料有限公司
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