Environment-friendly water-resistant zein adhesive and preparation method thereof

A technology of zein and adhesives, which is applied in the field of chemical adhesives, can solve the problems of insufficient water resistance and complicated preparation process of adhesives, and achieve the effect of improving poor water resistance, good stickiness, and strong cohesion

Inactive Publication Date: 2021-10-08
深圳市洪欣巨供应链有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an environmentally friendly water-resistant zein adhesive and its preparation method, which solves the technical problems of the traditional adhesive preparation process being complicated and the water resistance not high enough

Method used

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  • Environment-friendly water-resistant zein adhesive and preparation method thereof

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Embodiment 1

[0025] A preparation method of an environmental-friendly water-resistant zein adhesive, comprising the steps of:

[0026] Step S1: Mix 5 g of zein with 95 g of an alcohol solution of dodecylamine with a molar concentration of 200 mmol / L, stir at room temperature for 40 min to obtain a mixed solution, and then pour 10 g of the mixed solution into a mold (5.5 cm×5.5 cm×3.0cm), placed in an oven at 70°C for 4 hours to obtain an amino-modified zein complex film;

[0027] Step S2: Immerse 10 g of the amino-modified zein complex film prepared in step S1 into 1 wt % AgNO with a volume of 100 ml 3 in the solution, stirring at 40°C for 30 minutes to completely dissolve the amino-modified zein complex film to obtain the chelate;

[0028] Step S3: 0.6g graphene oxide was added to 150ml chloroform, ultrasonically dispersed, then 5mmol pentaerythritol tetraester and 5mmol azobisisobutyronitrile were added thereto, and 2 Atmosphere, under the condition that the reaction temperature is 70°...

Embodiment 2

[0031] A preparation method of an environmental-friendly water-resistant zein adhesive, comprising the steps of:

[0032] Step S1: Mix 5 g of zein with 95 g of an alcohol solution of dodecylamine with a molar concentration of 200 mmol / L, stir at room temperature for 40 min to obtain a mixed solution, and then pour 10 g of the mixed solution into a mold (5.5 cm×5.5 cm×3.0cm), placed in an oven at 70°C for 4 hours to obtain an amino-modified zein complex film;

[0033] Step S2: Immerse 10 g of the amino-modified zein complex film prepared in step S1 into 2.5 wt % AgNO with a volume of 100 ml 3 in the solution, stirring at 40°C for 30 minutes to completely dissolve the amino-modified zein complex film to obtain the chelate;

[0034] Step S3: 0.6g graphene oxide was added to 150ml chloroform, ultrasonically dispersed, then 5mmol pentaerythritol tetraester and 5mmol azobisisobutyronitrile were added thereto, and 2 Atmosphere, under the condition that the reaction temperature is 7...

Embodiment 3

[0037] A preparation method of an environmental-friendly water-resistant zein adhesive, comprising the steps of:

[0038] Step S1: Mix 5 g of zein with 95 g of an alcohol solution of dodecylamine with a molar concentration of 200 mmol / L, stir at room temperature for 40 min to obtain a mixed solution, and then pour 10 g of the mixed solution into a mold (5.5 cm×5.5 cm×3.0cm), placed in an oven at 70°C for 4 hours to obtain an amino-modified zein complex film;

[0039] Step S2: Immerse 10 g of the amino-modified zein complex film prepared in step S1 into 5 wt % AgNO with a volume of 100 ml 3 in the solution, stirring at 40°C for 30 minutes to completely dissolve the amino-modified zein complex film to obtain the chelate;

[0040] Step S3: 0.6g graphene oxide was added to 150ml chloroform, ultrasonically dispersed, then 5mmol pentaerythritol tetraester and 5mmol azobisisobutyronitrile were added thereto, and 2 Atmosphere, under the condition that the reaction temperature is 70°C,...

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Abstract

The invention discloses an environment-friendly water-resistant zein adhesive and a preparation method thereof. Through the principle of metal amino coordination, metal silver ions are loaded on the surface, dispersion of the silver ions in an amino modified zein complex is facilitated, and the adhesiveness of the adhesive is enhanced. Ag+ provides stronger cohesive force for the adhesive, so that the adhesive has a more compact structure, the problem of weak adhesion caused by too strong flowability of the amino modified zein complex is solved, and the adhesive has better adhesion. Ag+ has a bactericidal effect, so that the bactericidal property of the adhesive can be improved. In addition, sulfydryl modified graphene is prepared through sulfydryl-double bond reaction, sulfydryl and silver ions in the modified graphene coordinate with each other, so that the sulfydryl modified graphene can be uniformly dispersed in the adhesive, and the strength and tensile strength of the adhesive can be enhanced through combination of the sulfydryl modified graphene and the adhesive.

Description

technical field [0001] The invention relates to the field of chemical adhesives, in particular to an environmental-friendly water-resistant zein adhesive and a preparation method thereof. Background technique [0002] With the rapid development of my country's wood-based panel industry, the demand for adhesives is also increasing rapidly. Among them, the output of trialdehyde glue (urea-formaldehyde, phenolic and melamine-formaldehyde resin glue) is the largest, accounting for about 40% of the total output of adhesives. However, trialdehyde glue derived from petroleum will release free formaldehyde and phenol which are harmful to human body during production, transportation and use, thus causing environmental problems. [0003] Vegetable protein has a wide range of sources, low cost, biodegradability and regeneration, and its use in the manufacture of adhesives has great economic prospects and social significance. Compared with the existing "aldehyde" adhesives, the wood-ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J189/00C09J11/04
CPCC09J189/00C09J11/04C08K9/04C08K3/042C08K3/28
Inventor 张喜红
Owner 深圳市洪欣巨供应链有限公司
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