Green aldehyde-free biological adhesive and preparation method thereof

A bio-glue, green technology, applied in the preparation of animal glue or gelatin, adhesives, adhesive additives, etc., can solve problems such as adverse health effects, and achieve the goal of inhibiting colloid flow, improving bonding strength and water resistance, and increasing contact area. Effect

Inactive Publication Date: 2019-09-10
浙江创通木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the release of toxic and harmful substances such as formaldehyde and phenol in these three adhesives also has a bad impact on the health of the human body and the environment.

Method used

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  • Green aldehyde-free biological adhesive and preparation method thereof
  • Green aldehyde-free biological adhesive and preparation method thereof
  • Green aldehyde-free biological adhesive and preparation method thereof

Examples

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preparation example Construction

[0046] A preparation method of green aldehyde-free biological adhesive includes the following preparation methods:

[0047] Step 1: According to parts by weight, weigh 10-15 parts of defatted soybean protein powder, 5-8 parts of sodium hydroxide solution, 25-35 parts of polyvinyl alcohol, 8-12 parts of hexamethylenetetramine, and modified nanometer two 1-3 parts of silicon oxide, 80-85 parts of ethanol, 15-20 parts of preservative, 0.5-1 part of denaturant, 0.05-0.1 part of surfactant;

[0048] Step 2: Under stirring, add defatted soy protein powder to ethanol, stir evenly after adding, then add denaturant and surfactant, and stir again;

[0049] Step 3: Add sodium hydroxide solution dropwise, heat up to 60-65°C and react for 1-2 hours to obtain the basic glue;

[0050] Step 4: Prepare the polyvinyl alcohol into an aqueous solution, add the polyvinyl alcohol aqueous solution to the base glue, stir evenly, then add hexamethylenetetramine, stir for 0.5-1h, add modified nano silica and p...

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Abstract

The invention discloses a green aldehyde-free biological adhesive and a preparation method thereof. The green aldehyde-free biological adhesive is prepared from the following raw materials in parts byweight: 10-15 parts of defatted soybean protein powder, 5-8 parts of sodium hydroxide solution, 25-35 parts of polyvinyl alcohol, 8-12 parts of hexamethylenetetramine, 1-3 parts of modified nanometersilicon dioxide, 80-85 parts of ethanol, 15-20 parts of preservative, 0.5-1 part of denaturant, and 0.05-0.1 part of surfactant. The adhesive has the beneficial effects that the adhesive has excellent water resistance.

Description

Technical field [0001] The invention relates to an adhesive, in particular to a green non-formaldehyde biological adhesive and a preparation method thereof. Background technique [0002] At present, the adhesives used in the wood industry are mainly urea-formaldehyde resin adhesives, phenolic resin adhesives and melamine-formaldehyde copolycondensation resin adhesives. The main raw materials of these three adhesives come from non-renewable petroleum, and the consumption of petroleum will threaten the sustainable development of the adhesive industry. At the same time, the release of toxic and harmful substances such as formaldehyde and phenol in these three adhesives also has a bad effect on the health of the human body and the environment. [0003] The Chinese patent with publication number CN105969304A discloses a soybean aldehyde-free adhesive and a preparation method thereof. The adhesive includes the following components in parts by weight: 27-33 parts of defatted protein pow...

Claims

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Application Information

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IPC IPC(8): C09J129/04C09J189/00C09J11/04C09J11/06C09J11/08
CPCC08K2201/011C08K2201/014C09J11/04C09J11/06C09J11/08C09J129/04C08L89/00C08K13/06C08K9/06C08K3/36C08K3/22C08K5/3477C08K5/098C08K5/175C08K5/09C08K5/21C08K5/41C08K5/42C08K5/05
Inventor 邱晓强
Owner 浙江创通木业有限公司
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