Biomass-base and waterproof wooden adhesive without formaldehyde and its production

A wood adhesive and biomass technology, applied in the direction of lignocellulosic material adhesives, adhesive types, etc., can solve the problems of high price, high price and thin profit of wood adhesives, and achieve a wide range of biomass sources and superior water resistance. , the effect of good practical performance

Inactive Publication Date: 2006-05-31
江西南大中德食品工程中心
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are foreign reports of using soybean protein as raw material and amines as modified groups to prepare formaldehyde-free wood adhesives. However, the competition in the wood processing industry is fierce and profits are thin. Wood adhesives using soybean protein as raw materials are expensive and not suitable for large-scale production. production of wood processing industry
The journal literature of "A New Green Adhesive—A Brief Discussion on Modified Vegetable Protein-Based Wood Adhesive/Chemistry and Bonding. 2003 (4).-179-

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

Examples

Experimental program
Comparison scheme
Effect test

Example

[0031] Example 1:

[0032] Weigh 50 parts of corn stalks, add 30 parts of xylitol, 20 parts of propylene carbonate, liquefy for 55 minutes at 195°C and 1.5 atm pressure after removing impurities and crushing pretreatment, and then add 20 parts after colloid milling. Parts of tartaric acid and 20 parts of phthalic anhydride, heat to melt, stir evenly. After cooling, add 1 part of iron stearate and mix well. A new type of wood adhesive can be obtained.

[0033] Conditions of Use

[0034] Wood moisture content / %

Example

[0035] Example 2:

[0036] Weigh 100 parts of yellow-aged rice, after pretreatment, add 30 parts of xylitol, 20 parts of propylene carbonate, liquefy at 180℃ and 1.0atm pressure for 35min, after colloid milling, add 20 parts of tartaric acid And 20 parts of phthalic anhydride, heat to melt, stir evenly. After cooling, add 0.8 parts of magnesium stearate and mix well. A new type of wood adhesive can be obtained.

[0037] Conditions of Use

Example

[0038] Example 3:

[0039] Weigh 60 parts of waste paper, after pretreatment of impurity removal and pulverization, add 40 parts of xylitol, 20 parts of propylene carbonate, liquefy for 55 minutes at 190℃ and 1.2atm pressure, and then add 20 parts after colloid milling. Parts of tartaric acid and 20 parts of phthalic anhydride, heat to melt, stir evenly. After cooling, add 0.8 parts of iron stearate and mix well. A new type of wood adhesive can be obtained.

[0040] Conditions of Use

[0041] Glue amount (double-sided)

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

No PUM Login to view more

Abstract

A non-methanal water-proof wood adhesive with biomass and its production are disclosed. It consists of biomass 10-300 proportion, liquefying agent 50-100 proportion, cross-linking agent and 10-100 proportion. The process is carried out by removing impurities, breaking, pre-treating, adding into liquefying agent, liquefying at 70-300íÒC and ¿C20atm for 5mins-24hrs, adding into cross-linking agent, heating, melting and agitating. It has better water-proof performance.

Description

technical field [0001] The invention relates to a formaldehyde-free water-resistant wood adhesive, in particular to a formaldehyde-free water-resistant wood adhesive based on biomass and a preparation method thereof. Background technique [0002] At present, the three-aldehyde glue "urea-formaldehyde glue, phenolic glue, melamine formal" accounts for more than 95% of wood adhesives, and most of the three-aldehyde glue uses formaldehyde, phenol, benzene, xylene, isocyanate and other toxic and harmful ingredients as raw materials in the production. High-quality trialdehyde wood adhesives contain aldehyde residues. If the process is not properly controlled, it will be very harmful to the environment and human body. There are foreign reports of using soybean protein as raw material and amines as modified groups to prepare formaldehyde-free wood adhesives. However, the competition in the wood processing industry is fierce and profits are thin. Wood adhesives using soybean protein...

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): C09J197/02
Inventor 阮榕生刘玉环林向阳刘成梅涂宗财高荫榆张锦胜
Owner 江西南大中德食品工程中心
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