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Modified starch adhesive

A starch adhesive and modification technology, applied in the directions of starch adhesives, adhesives, adhesive additives, etc., can solve the problems of poor waterproofness, film flexibility, corrosion resistance and elasticity can not be satisfied, and achieve low cost, Appearance without precipitation, good fluidity

Inactive Publication Date: 2016-07-27
HEFEI DONGCAI PRINTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wood adhesives such as "trialdehyde glue" are synthesized from non-renewable resource petroleum monomers, thus prompting domestic and foreign researchers to seek alternatives to "trialdehyde glue". Starch and its derivatives have good adhesion It is an excellent natural resource adhesive, but its water resistance is poor, and the flexibility, corrosion resistance and elasticity of the film cannot meet the needs of current development.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A modified starch adhesive, its raw materials include by weight: 15 parts of glutinous rice flour, 10 parts of corn starch, 40 parts of wheat starch, 10 parts of modified composite protein, 2 parts of ammonium persulfate, 2 parts of sodium hydroxide, 5 parts of borax, 1 part of nano silicon dioxide, 2 parts of calcined kaolin, 1 part of disproportionated rosin, 6 parts of polyvinyl alcohol, 5 parts of vinyl acetate, 10 parts of melamine formaldehyde resin, 50 parts of deionized water.

Embodiment 2

[0018] A modified starch adhesive, its raw materials include by weight: 5 parts of glutinous rice flour, 20 parts of corn starch, 20 parts of wheat starch, 20 parts of modified composite protein, 1 part of ammonium persulfate, 6 parts of sodium hydroxide, 2 parts of borax, 3 parts of nano silicon dioxide, 1 part of calcined kaolin, 4 parts of disproportionated rosin, 1 part of polyvinyl alcohol, 15 parts of vinyl acetate, 5 parts of melamine formaldehyde resin, 120 parts of deionized water.

Embodiment 3

[0020] A modified starch adhesive, its raw materials include by weight: 13 parts of glutinous rice flour, 12 parts of corn starch, 34 parts of wheat starch, 14 parts of modified composite protein, 1.5 parts of ammonium persulfate, 3 parts of sodium hydroxide, 4 parts of borax, 1.5 parts of nano silicon dioxide, 1.6 parts of calcined kaolin, 2 parts of disproportionated rosin, 4 parts of polyvinyl alcohol, 8 parts of vinyl acetate, 8 parts of melamine formaldehyde resin, 80 parts of deionized water.

[0021] The modified composite protein is prepared by the following process: 10 parts by weight of octamethylcyclotetrasiloxane, 0.1 part of initiator dodecylbenzenesulfonic acid, 1.2 parts of emulsifier alkylphenol polyoxyethylene ether, 50 parts Mix and stir with deionized water for 50 minutes, heat up to 70°C, add 4 parts of potassium hydroxide and continue stirring for 1 hour, adjust the pH of the system to neutral, add 6 parts of wheat prolamin, 10 parts of peanut protein powde...

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PUM

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Abstract

The invention discloses a modified starch adhesive.The modified starch adhesive comprises, by weight, 5-15 parts of glutinous rice flour, 10-20 parts of corn starch, 20-40 parts of wheat starch, 10-20 parts of modified composite protein, 1-2 parts of ammonium persulfate, 2-6 parts of sodium hydroxide, 2-5 parts of borax, 1-3 parts of nano-silica, 1-2 parts of calcined kaolin, 1-4 parts of disproportionated rosin, 1-6 parts of polyvinyl alcohol, 5-15 parts of vinyl acetate, 5-10 parts of melamine formaldehyde resin and 50-120 parts of deionized water.The modified starch adhesive is good in waterproof performance and excellent in adhesive film toughness, corrosion resistance and elasticity.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a modified starch adhesive. Background technique [0002] Today, with the emphasis on the sustainable development strategy, with the dwindling of petroleum resources, chemical products based on petroleum will be replaced by renewable natural polymers. Wood adhesives such as "trialdehyde glue" are synthesized from non-renewable resource petroleum monomers, thus prompting domestic and foreign researchers to seek alternatives to "trialdehyde glue". Starch and its derivatives have good adhesion It is an excellent natural resource adhesive, but its water resistance is poor, and the flexibility, corrosion resistance and elasticity of the film cannot meet the needs of current development. Contents of the invention [0003] A modified starch adhesive, the product has good water resistance, and the film has excellent flexibility, corrosion resistance and elasticity. [0004] A kind ...

Claims

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Application Information

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IPC IPC(8): C09J103/02C09J189/00C09J11/08C09J11/04
CPCC09J103/02C08K2201/011C08L2205/025C08L2205/035C08L2205/16C09J11/04C09J11/08
Inventor 唐述振
Owner HEFEI DONGCAI PRINTING TECH
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