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A kind of biomass raw material room temperature curing adhesive and preparation method thereof

A biomass raw material, room temperature curing technology, applied in the field of wood adhesives, can solve the problems of low curing content and high curing temperature, and achieve the effect of high carboxyl content, high solid content and good water resistance

Active Publication Date: 2020-10-30
福建省格绿木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The formula has low curing content and high curing temperature, so it is not suitable for producing large-sized wood-based panels at room temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The room-temperature-curing adhesive made of biomass raw materials includes the following components in parts by weight: 400 parts of plant raw materials, 400 parts of live bacteria fermentation liquid, 60 parts of crosslinking agent, and 1000 parts of water.

[0031] The vegetable raw material is defatted soybean meal.

[0032] The cross-linking agent is a nitrogen-containing heterocyclic epichlorohydrin polymer.

[0033] Water is tap water.

[0034] The preparation method of said a kind of biomass raw material room temperature curing adhesive is specifically divided into two steps:

[0035] Step S1 uses environmental microorganisms to prepare live bacteria fermentation broth.

[0036] In step S2, the living bacteria fermentation liquid is mixed with the plant material, and then sterilized to prepare an adhesive.

[0037] The preparation of live bacteria fermentation liquid described in step S1 is specifically:

[0038] Step S11. Mix 200 parts of plant material wit...

Embodiment 2

[0052] The room-temperature-curing adhesive made of biomass raw materials includes the following components in parts by weight: 1,000 parts of plant raw materials, 1,200 parts of live bacteria fermentation liquid, 220 parts of crosslinking agent, and 1,000 parts of water.

[0053] The plant raw material is soybean flour.

[0054] The crosslinking agent is isocyanate.

[0055] Water is tap water.

[0056] The preparation method of said a kind of biomass raw material room temperature curing adhesive is specifically divided into two steps:

[0057] Step S1 uses environmental microorganisms to prepare live bacteria fermentation broth.

[0058] In step S2, the living bacteria fermentation liquid is mixed with the plant material, and then sterilized to prepare an adhesive.

[0059] The preparation of live bacteria fermentation liquid described in step S1 is specifically:

[0060] Step S11. Mix 200 parts of plant material with 1000 parts of water, and stir at 35° C. at 200 rpm fo...

Embodiment 3

[0074] The room-temperature-curing adhesive made of biomass raw materials includes the following components: by weight, 700 parts of plant raw materials, 500 parts of live bacteria fermentation liquid, 80 parts of cross-linking agent, and 1000 parts of water.

[0075] The plant raw material is defatted soybean meal and soybean flour, and the weight ratio is 3 / 1.

[0076] The crosslinking agent is epoxy resin.

[0077] Water is tap water.

[0078] The preparation method of said a kind of biomass raw material room temperature curing adhesive is specifically divided into two steps:

[0079] Step S1 uses environmental microorganisms to prepare live bacteria fermentation broth.

[0080] In step S2, the living bacteria fermentation liquid is mixed with the plant material, and then sterilized to prepare an adhesive.

[0081] The preparation of live bacteria fermentation liquid described in step S1 is specifically:

[0082] Step S11. Mix 200 parts of plant material with 1000 parts...

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Abstract

The invention belongs to the technical field of wood adhesives, and concretely relates to a preparation method of a biomass raw material room temperature curing adhesive. Raw materials of the adhesiveinclude, by weight, 400-1000 parts of a plant material, 400-1200 parts of a live bacterium fermentation broth, 60-220 parts of a crosslinking agent and 1000 parts of water. The preparation method specifically comprises the following steps: preparing the living bacterium fermentation broth by using environmental microorganisms; and mixing the living bacterium fermentation broth with plant proteinpowder, and sterilizing the obtained mixture to prepare the adhesive. The adhesive has a high solid content and many active functional groups, especially has a high carboxyl group content, and can becured at room temperature; the adhesive has good water resistance after being cured, does not release toxic and harmful substances such as formaldehyde, and can be environmentally degraded; and the adhesive can be used for furniture sheet splicing, joint assembling, and manufacturing of laminated wood, glued boards and other artificial boards.

Description

technical field [0001] The invention belongs to the technical field of wood adhesives, and in particular relates to a preparation method of biomass raw material room temperature curing adhesives. Background technique [0002] Adhesives are widely used in the wood processing industry, which can realize the large use of small wood and the good use of inferior wood. Among them, room temperature curing adhesives are mainly used in the furniture manufacturing industry, which are used for the splicing and joint assembly of various small-sized sawn timber, requiring a higher solid content. Traditional room temperature curing adhesives are mainly various emulsion adhesives derived from petrochemical products, which have the disadvantages of non-renewable raw materials, difficult to degrade products, and unfriendly to the environment; adhesives made of biomass raw materials overcome these shortcomings, but are generally It has the disadvantages of low solid content, poor water resis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J189/00C09J11/08C09J11/06
Inventor 陈奶荣殷豪彭志翔张二兵陈麦全程生媛林巧佳饶久平曾钦志范毜仔
Owner 福建省格绿木业有限公司
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