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Environment-friendly bio-oil starch adhesive and preparation method thereof

A starch adhesive, bio-oil technology, applied in starch adhesives, cellulose derivative adhesives, adhesives, etc., can solve the problems of poor antibacterial properties, poor water resistance, easy to mold, etc., and achieve excellent water resistance and excellent antibacterial properties. , the effect of improving antibacterial properties

Active Publication Date: 2021-02-19
浙江荣禾新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the progress and development of science and technology, starch adhesive has gradually become our preferred, but today's starch adhesives have poor water resistance, are prone to mold, and have poor antibacterial properties, which brings inconvenience to our actual use

Method used

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  • Environment-friendly bio-oil starch adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A preparation method of environment-friendly bio-oil starch adhesive, comprising the following steps:

[0040] (1) Prepare materials:

[0041](2) Take cellulose nanocrystals and deionized water, ultrasonically disperse for 15 minutes, adjust the pH to 4, heat up to 70°C, add 3-aminopropyltriethoxysilane, reflux for 3 hours, cool, and wash with deionized water , collected by centrifugation and dried at 55°C for 10 hours to obtain material A;

[0042] Take formaldehyde and adenosine triphosphate disodium salt solution, mix and stir for 10 minutes, heat up to 110°C, stir and react for 15 minutes, then add material A, continue stirring and reacting for 2 hours, then add silver nitrate solution and ethylene glycol, react for 3 hours, cool to room temperature, Washing with deionized water to obtain modified cellulose;

[0043] (3) Take tartaric acid and deionized water, mix and stir for 10 minutes, add absolute ethanol, treat at a constant temperature at 25°C for 30in, add ...

Embodiment 2

[0050] A preparation method of environment-friendly bio-oil starch adhesive, comprising the following steps:

[0051] (1) Prepare materials:

[0052] (2) Take cellulose nanocrystals and deionized water, ultrasonically disperse for 18 minutes, adjust the pH to 4, heat up to 75°C, add 3-aminopropyltriethoxysilane, reflux for 3.5 hours, cool, and deionized water Wash, collect by centrifugation, and dry at 58°C for 12 hours to obtain material A;

[0053] Take formaldehyde and adenosine triphosphate disodium salt solution, mix and stir for 15 minutes, heat up to 115°C, stir and react for 18 minutes, then add material A, continue stirring and reacting for 2.5 hours, then add silver nitrate solution and ethylene glycol, react for 3.5 hours, and cool to Room temperature, washed with deionized water to obtain modified cellulose;

[0054] (3) Take tartaric acid and deionized water, mix and stir for 15 minutes, add absolute ethanol, treat at a constant temperature of 26°C for 25in, add...

Embodiment 3

[0061] A preparation method of environment-friendly bio-oil starch adhesive, comprising the following steps:

[0062] (1) Prepare materials:

[0063] (2) Take cellulose nanocrystals and deionized water, ultrasonically disperse for 20 minutes, adjust the pH to 4, heat up to 80°C, add 3-aminopropyltriethoxysilane, reflux for 4 hours, cool, and wash with deionized water , collected by centrifugation and dried at 60°C for 14 hours to obtain material A;

[0064] Take formaldehyde and adenosine triphosphate disodium salt solution, mix and stir for 20 minutes, heat up to 120°C, stir and react for 20 minutes, then add material A, continue stirring and reacting for 3 hours, then add silver nitrate solution and ethylene glycol, react for 4 hours, cool to room temperature, Washing with deionized water to obtain modified cellulose;

[0065] (3) Take tartaric acid and deionized water, mix and stir for 20 minutes, add absolute ethanol, treat at a constant temperature at 28°C for 20in, add...

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Abstract

The invention discloses an environment-friendly bio-oil starch adhesive and a preparation method thereof. The adhesive comprises the raw materials by weight: 40-55 parts of starch, 1-1.2 parts of an oxidant, 25-35 parts of polyvinyl alcohol, 10-20 parts of acrylamide, 8-10 parts of quaternary ammonium salt chitosan, 25-30 parts of bio-oil, 6-9 parts of a curing agent, 10-12 parts of modified cellulose and 10-12 parts of modified silicon dioxide. The environment-friendly bio-oil starch adhesive and the preparation method thereof provided by the invention have the advantages that the environment-friendly bio-oil starch adhesive is simple in process design and reasonable in component proportion, the prepared adhesive not only has excellent water resistance and bonding performance, but also has excellent antibacterial property, and the practicability is greatly improved.

Description

technical field [0001] The invention relates to the field of adhesive technology, in particular to an environment-friendly bio-oil starch adhesive and a preparation method thereof. Background technique [0002] Plywood is a three-layer or multi-layer board-like material that is made of wood sections that are peeled into veneers or sliced ​​into thin wood, and then glued with adhesives. Usually, odd-numbered veneers are used, and adjacent layers of veneers are used. The fiber direction of the plywood is glued perpendicular to each other. In the process of plywood processing, the adhesive is an indispensable part. [0003] Adhesives are organic or inorganic, natural or synthetic substances that can connect the same, two or more homogeneous or heterogeneous parts (or materials) together, and have sufficient strength after curing. For natural polymer compounds (starch, animal skin glue, bone glue, natural rubber, etc.), synthetic polymer compounds (epoxy resin, phenolic resin, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/02C09J129/04C09J133/26C09J105/08C09J191/00C09J101/08C09J11/04C09J11/06
CPCC09J103/02C09J11/04C09J11/06C08K2003/0806C08K2201/011C08L2205/035C08L29/04C08L33/26C08L5/08C08L91/00C08L1/08C08K9/06C08K7/26C08K9/04C08K3/042C08K5/29C08K5/07C08K3/08C08K13/06
Inventor 简杰
Owner 浙江荣禾新材料股份有限公司
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