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Starch adhesive and preparation method thereof

A technology of starch adhesive and corn starch, which is applied in adhesives, non-polymer adhesive additives, non-polymer organic compound adhesives, etc., can solve problems such as unfavorable simplification of process, high cost, and influence on the continuity of the preparation process. Achieve the effect of simple industrial operation, low cost and fast drying speed

Inactive Publication Date: 2017-06-16
钦州市高新技术产业服务中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyvinyl alcohol needs to be dissolved and configured separately in advance, which affects the continuity of the preparation process, is not conducive to simplifying the process, and costs are high. In the existing process, in order to improve the stability of the starch adhesive, the amount of urea added is still high, and there room for further improvement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A starch adhesive is composed of the following formula components in parts by mass: 25-35 parts of corn starch, 1-2 parts of initiator, 4-6 parts of comonomer, 6-8 parts of sodium hydroxide, 6-8 parts of hydrogen peroxide, polymer 6-10 parts of vinyl alcohol, 2-6 parts of solid organic acid, 1-2 parts of essence, 1-2 parts of catalyst, 4-6 parts of epoxy propane, 5-7 parts of borax, 2-3 parts of drier, 50-150 parts of water.

Embodiment 2

[0023] A starch adhesive is composed of the following formula components in parts by mass: 25 parts of cornstarch, 1 part of initiator, 4 parts of comonomer, 6 parts of sodium hydroxide, 6 parts of hydrogen peroxide, 6 parts of polyvinyl alcohol, and 2 parts of solid organic acid , 1 part of essence, 1 part of catalyst, 4 parts of epoxypropane, 5 parts of borax, 2 parts of drier, 50 parts of water.

Embodiment 3

[0025] A starch adhesive is composed of the following formula components in parts by mass: 30 parts of corn starch, 1.5 parts of initiator, 5 parts of comonomer, 7 parts of sodium hydroxide, 7 parts of hydrogen peroxide, 8 parts of polyvinyl alcohol, and 4 parts of solid organic acid , 1.5 parts of essence, 1.5 parts of catalyst, 5 parts of epoxy propane, 6 parts of borax, 2.5 parts of drier, and 100 parts of water.

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Abstract

The invention discloses a starch adhesive and a preparation method thereof. The starch adhesive comprises, by mass, 25-35 parts of corn starch, 1-2 parts of an initiator, 4-6 parts of a copolymerization monomer, 6-8 parts of sodium hydroxide, 6-8 parts of hydrogen peroxide, 6-10 parts of polyvinyl alcohol, 2-6 parts of a solid organic acid, 1-2 parts of an essence, 1-2 parts of a catalyst, 4-6 parts of epichlorohydrin, 5-7 parts of borax, 2-3 parts of a drier and 50-150 parts of water. The starch adhesive prepared in the invention has the advantages of fast drying speed, good film forming ability, high bonding strength, low cost, and simplicity in industrial operation, has better comprehensive performances than existing commercial high-quality white latex, and can be widely applied to decoration of wood and bonding of artificially made plates and glued plates, and wood products bonded by using the starch adhesive do not release poisonous or harmful gases.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a starch adhesive and a preparation method thereof. Background technique [0002] Starch is an organic compound with abundant content in nature. It has the advantages of wide source, low price, renewable, completely degradable and non-polluting. A kind of wood adhesive with low production cost, environmental protection and no pollution can be prepared after acid hydrolysis, pregelatinization, graft copolymerization and regelatinization of starch. The storage stability, bonding strength and drying speed of starch glue prepared by some current processes have been significantly improved, but the apparent viscosity and initial tack of the adhesive are low, which need to be improved by adding polyvinyl alcohol solution or similar substances. improve properties. However, polyvinyl alcohol needs to be dissolved and configured separately in advance, which affects the continuity of the preparat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/06C09J11/04C09J11/06
CPCC09J4/06C09J11/04C09J11/06
Inventor 戚炎月丘泰西
Owner 钦州市高新技术产业服务中心
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