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Soybean meal lignin-based adhesive and preparation method thereof

A technology based on lignin and adhesives, which is applied in the preparation of adhesives, animal glue or gelatin, and the types of adhesives. It can solve the problems of poor boiling resistance, low dry bonding strength, and poor water resistance of ordinary protein adhesives. Improve the water-resistant bonding performance, enhance the water-resistant bonding performance, and ensure the effect of practical performance

Inactive Publication Date: 2016-07-13
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above problems, the present invention designs a soybean meal lignin-based adhesive and its preparation method, which solves the problems of poor water resistance, low dry bonding strength, and poor boiling resistance of ordinary protein adhesives, and can meet the water resistance of adhesives for wood-based panels. requirements, ensuring the practical performance of protein adhesives; helping to solve the problem of depletion of synthetic fossil raw materials used in conventional wood-based panel adhesives, in line with the principles of environmental protection and sustainable development; comprehensive utilization of resources, saving production costs and increasing the added value of products

Method used

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  • Soybean meal lignin-based adhesive and preparation method thereof
  • Soybean meal lignin-based adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment provides an adhesive for wood-based panels, and the adhesive is prepared according to the following weight ratio:

[0039] Softened water 70Kg

[0040] Defatted soy protein powder 30Kg

[0041] Denaturant 1Kg

[0042] Enhancer 5kg

[0043] Among them, the protein content of defatted soybean protein powder is more than 43% (purchased from Huifu Grain and Oil Co., Ltd.); the denaturant is commercially available ordinary magnesium hydroxide (purchased from Tianjin Chemical Research Institute, with a content of 98%); the enhancer is homemade reduced wood Vegetables (solid content 65%, viscosity 5400mPa.s).

[0044] This embodiment provides the preparation method of above-mentioned adhesive simultaneously, and specific preparation steps are as follows:

[0045] 1) In a mixer equipped with a stirrer, add all the demineralized water, defatted soy protein powder, and mix well.

[0046] 2) Add denaturant and stir evenly.

[0047] 3) Add enhancer and stir well...

Embodiment 2

[0050] This embodiment provides an adhesive for wood-based panels, and the adhesive is prepared according to the following weight ratio

[0051] Tap water 67Kg

[0052] Defatted soy protein powder 33Kg

[0053] Denaturant 1.5Kg

[0054] Enhancer 10kg

[0055] Among them, the protein content of defatted soybean protein powder is more than 43% (purchased from Huifu Grain and Oil Co., Ltd.); the denaturant is commercially available ordinary sodium carbonate (purchased from Tianjin Chemical Research Institute, content 98%); the enhancer is self-made reduced lignin (solid content 65%, viscosity 5400mPa.s).

[0056] The preparation method of the adhesive described in this example is the same as in Example 1, and the performance and quality indicators of the obtained adhesive are shown in Table 1.

Embodiment 3

[0058] This embodiment provides an adhesive for wood-based panels, and the adhesive is prepared according to the following weight ratio:

[0059] Softened water 65Kg

[0060] Defatted Peanut Protein Powder 35Kg

[0061] Denaturant 2Kg

[0062] Enhancer 15kg

[0063] Among them, the protein content of defatted soybean protein powder is more than 43% (purchased from Huifu Grain and Oil Co., Ltd.); the denaturant is commercially available ordinary sodium carbonate (purchased from Tianjin Chemical Research Institute, content 98%); the enhancer is self-made reduced lignin (solid content 65%, viscosity 5400mPa.s).

[0064] The preparation method of the adhesive described in this example is the same as in Example 1, and the performance and quality indicators of the obtained adhesive are shown in Table 1.

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Abstract

The invention discloses a soybean meal lignin-based adhesive and a preparation method thereof. The soybean meal lignin-based adhesive is prepared from 20-50 parts of defatted protein powder, 1-5 parts of a denaturant, 1-30 parts of a reinforcing agent and 60-80 parts of a dispersion medium. The preparation method comprises the steps of dispersing, mixing, stirring and the like. The soybean meal lignin-based adhesive and the preparation method thereof have the following advantages: the problems of poor water resistance, low dry cementation strength and poor boiling resistance of a common protein adhesive are solved, the water-proof requirement of an adhesive for artificial boards can be satisfied, and the practicability of the protein adhesive is guaranteed; the problem of exhaustion of synthetic fossil raw materials used in conventional artificial board adhesives can be favorably solved, and the environmental protection and sustainable development principles can be conformed; resources are comprehensively utilized, the production cost is lowered and the product added value is improved.

Description

technical field [0001] The invention relates to an adhesive and a preparation method thereof, in particular to a soybean meal lignin-based adhesive and a preparation method thereof, belonging to the field of adhesives. Background technique [0002] With the improvement of people's living standards and the continuous and stable development of construction, decoration, packaging and other industries, the output of wood-based panels in my country has grown rapidly. In 2014, the total output of wood-based panels in my country was 302 million m 3 , accounting for more than 50% of the world's total output. Among them, the particle board is 17 million m 3 , a year-on-year increase of 13%; fiberboard 0.69 billion m 3 , a year-on-year increase of 16%; plywood 174 million m 3 , an increase of 7% year-on-year. The total output of wood-based panels, plywood, furniture, and wood flooring has ranked first in the world for many years in a row. [0003] The adhesives commonly used in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J189/00C09J11/08C09J11/04C08H7/00
CPCC08H6/00C08L2205/04C09J11/04C09J11/08C09J189/00C08L97/005C08K2003/2224C08K2003/262
Inventor 罗晶高强李建章李黎陈慧
Owner BEIJING FORESTRY UNIVERSITY
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