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Starch-based wood adhesive and preparation method and application thereof

A wood adhesive, starch-based technology, applied in the direction of adhesives, adhesive types, grafted polymer adhesives, etc., can solve the problems of appearance, bonding strength, water resistance, etc., to improve storage stability and cost Inexpensive, the effect of improving the bonding strength

Active Publication Date: 2011-04-27
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The starch glue prepared by this process has the advantages of low cost and environmental protection. The bonding strength of the starch glue has reached the national standard, but its appearance, bonding strength, and water resistance need to be improved in order to be applied industrially.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Recipe (by mass): cornstarch 100g

[0037] Ammonium persulfate 1 g

[0038] Emulsifier OP-10 1 g

[0039] Vinyl acetate 80 g

[0040] Butyl acrylate 10 g

[0041] Polyvinyl alcohol 10 g

[0042] Urea 10 g

[0043] Glycerin 5 g

[0044] Tributyl phosphate 2 g

Embodiment 2

[0046] Recipe (by mass): waxy cornstarch 100 g

[0047] Ammonium persulfate 2 g

[0048] Emulsifier sodium lauryl sulfate 3 g

[0049] Vinyl acetate 110 g

[0050] Butyl acrylate 14 g

[0051] Polyvinyl alcohol 20 g

[0052] Urea 20 g

[0053] Dimethyl phthalate 10 g

[0054] Tributyl phosphate 4 g

Embodiment 3

[0056] Recipe (by mass): tapioca starch 100 g

[0057] Ammonium persulfate 1.5 g

[0058] Emulsifier OP 2 g

[0059] Vinyl acetate 100 g

[0060] Butyl acrylate 12 g

[0061] Polyvinyl alcohol 15 g

[0062] Urea 15 g

[0063] Dimethyl phthalate 7 g

[0064] Tributyl phosphate 3 g

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Abstract

The invention provides a starch-based wood adhesive and a preparation method and application thereof, and belongs to the technical field of adhesive. In the invention, a starch adhesive for woods with good property is prepared by performing acidolysis and gelatinization on starch serving as raw materials, grafting, copolymerizing and modifying the starch by using two monomers of vinylacetate and butyl acrylate under the condition of adding an emulsifier, and adding an accessory ingredient after lowering the temperature. The adhesive prepared by the preparation method has the advantages of good preservation stability, high bonding strength, milky white and glossy color and the like, and can be applied to decoration of woods and bonding of artificial plates and glued plates.

Description

Technical field [0001] A starch-based wood adhesive and its preparation method and application belong to the technical field of adhesive preparation. Background technique [0002] Starch is renewable, pollution-free, low-cost, and biodegradable. Starch has been used for bonding corrugated paper for a long time and has been industrialized. Traditional starch glue has shortcomings such as slow drying speed, low bonding strength, poor water resistance, and yellow color, which limits its application in wood adhesives. Chinese patent CN1687279A "A method for preparing starch glue for wood" proposes a process that uses starch as the main raw material, undergoes acidolysis, oxidation, graft copolymerization modification, and finally adds certain additives to prepare starch glue. The starch glue prepared by this process has the advantages of low cost and environmental protection. The bonding strength of the starch glue has reached national standards, but its appearance, bonding str...

Claims

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Application Information

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IPC IPC(8): C09J151/02C08F251/00
Inventor 顾正彪程力王辉洪雁李兆丰
Owner JIANGNAN UNIV
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