Aldehyde free soybean protein adhesive having multiple network structure and preparation method thereof

A technology of soybean protein glue and network structure, which is applied in the field of soybean protein wood adhesives and its preparation, can solve the problems of poor water resistance and high brittleness, achieve good mildew resistance, improve toughness, and improve bonding strength.

Active Publication Date: 2020-04-10
BEIJING FORESTRY UNIVERSITY
View PDF15 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of poor water resistance and high brittleness of soybean protein adhesives, the present invention designs a soybean protein wood adhesive with a multiple network structure and its preparation method. The adhesive has high water-resistant bonding strength,

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aldehyde free soybean protein adhesive having multiple network structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment provides a method for preparing a formaldehyde-free soybean protein adhesive with a multiple network structure, and the adhesive is prepared according to the following weight ratio:

[0023] Soy Protein Isolate 15 kg

[0024] Tap water 85kg

[0025] Bromelain 0.1kg

[0026] Cross-linking agent PTGE 4kg

[0027] Tannic acid 3kg

[0028] Zinc sulfate heptahydrate 0.5kg

[0029] This embodiment also provides a preparation method of the above-mentioned adhesive, and the specific preparation steps are as described in the summary of the invention above.

Embodiment 2

[0031] This embodiment provides a method for preparing a formaldehyde-free soybean protein adhesive with a multiple network structure, and the adhesive is prepared according to the following weight ratio:

[0032] Soy Protein Isolate 12 kg

[0033] Tap water 88kg

[0034] Bromelain 0.05kg

[0035] Cross-linking agent PTGE 2kg

[0036] Tannic acid 2kg

[0037] Zinc sulfate heptahydrate 0.25kg

[0038] The preparation method of the adhesive described in this embodiment is the same as that in Example 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Strengthaaaaaaaaaa
Dry strengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to an aldehyde free soybean protein adhesive having a multiple network structure. The adhesive comprises following components in parts by weight: 15 to 18 parts of a main agent,85 to 88 parts of a dispersing medium (water), 0.05 to 0.1 part of bromelain, 2 to 3 parts of tannic acid (TA), 0.25 to 0.5 part of zinc sulfate heptahydrate, and 2 to 4 parts of a crosslinking agentnamely 1,2,3-glyceroldiglycidyl ether (PTGE). The adhesive has a triple network structure, has the advantages of proper viscosity, high dry/wet bonding strength, good toughness, good mildew resistantproperty, and can be evenly painted; the performance is stable, and the product quality is stably improved. The invention further relates to a preparation method of the adhesive.

Description

technical field [0001] The invention relates to the technical field of preparation of veneer-based wood-based panels, in particular to a soybean protein wood adhesive and a preparation method thereof. Background technique [0002] my country's precious wood resources are relatively scarce, and artificial forest resources are abundant. Using artificial forest fast-growing wood to prepare wood-based panels through adhesives is the main raw material for furniture floors and interior decoration in the living environment. In 2018, the total output of wood-based panels in my country reached 300 million cubic meters, accounting for about 50% of the world's total output, of which more than 60% are veneer wood-based panel products. Based on the average production of 9 cubic meters of wood-based panels per ton of adhesive, the consumption of adhesives for veneer-based wood-based panels in my country in 2018 was about 18 million tons (solid content 50%), of which urea-formaldehyde resin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09J189/00C09J11/04C09J11/06C08H1/00
CPCC08H1/00C08K2003/3045C09J11/04C09J11/06C09J189/00C08K13/02C08K5/1515C08K3/30C08K5/1545
Inventor 徐艳涛高强韩宇飞李玥李建章周文瑞张伟龚珊珊
Owner BEIJING FORESTRY UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap