Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Novel woodware adhesive

A woodware, a new type of technology, applied in the direction of adhesives, adhesive types, adhesive additives, etc., can solve the problems of initial viscosity, adhesive strength, water resistance, curing speed, and viscosity performance are not ideal, and free formaldehyde volatiles are not very good. Good control, limitation and other issues, to achieve the effect of high bonding strength, fast strength establishment, and simple preparation method

Inactive Publication Date: 2016-02-24
黄艳
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, VAE emulsion glue still contains a small amount of formaldehyde, and the free formaldehyde volatiles are still not well controlled.
In addition, although VAE emulsion glue can be used directly as an adhesive, its initial viscosity, bonding strength, water resistance, curing speed, viscosity and other properties are not ideal, and its application is limited.

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

Embodiment 1

[0009] The invention is a new type of wood glue, which is made of the following raw materials in parts by weight: 2.5 parts of polyvinyl alcohol, 1.8 parts of calcium carbonate powder, 3.5 parts of lignin, 5 parts of cornstarch, 1.2 parts of baking soda, 2.5 parts of glycerin, 1.2 parts of 4-tert-butylphenol and 2.5 parts of acetyl trioctyl citrate.

Embodiment 2

[0011] The invention is a novel wood glue, which is made of the following raw materials in parts by weight: 3.8 parts of polyvinyl alcohol, 3.6 parts of calcium carbonate powder, 6.5 parts of lignin, 10 parts of cornstarch, 2.4 parts of baking soda, 5 parts of glycerin, 3.6 parts of 4-tert-butylphenol and 5 parts of acetyl trioctyl citrate.

Embodiment 3

[0013] The present invention is a novel wood glue, made of the following raw materials in parts by weight: 3.2 parts of polyvinyl alcohol, 2.8 parts of calcium carbonate powder, 5.2 parts of lignin, 8 parts of cornstarch, 1.8 parts of baking soda, 3.6 parts of glycerin, 2.8 parts of 4-tert-butylphenol and 3.7 parts of acetyl trioctyl citrate.

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
initial bond strengthaaaaaaaaaa
initial bond strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a novel woodware adhesive prepared from the following raw materials in parts by weight: 2.5-3.8 parts of polyvinyl alcohol, 1.8-3.6 parts of a calcium carbonate powder, 3.5-6.5 parts of lignin, 5-10 parts of corn starch, 1.2-2.4 parts of baking soda, 2.5-5 parts of glycerin, 1.2-3.6 parts of 4-tert butyl phenol, and 2.5-5 parts of acetyl trioctyl citrate. Compared with conventional products, the novel woodware adhesive is a water-soluble adhesive, does not contain formaldehyde, and is safe and environmentally friendly. The adhesive has the advantages that a water soluble alkenyl monomer is used for grafting, and wood materials are adhered by grafting and crosslinking on the surface of wood meal, so that the adhesive has high bonding strength and has the initial bonding strength of up to 2.2 MPa. The water-soluble non-formaldehyde wood adhesive can be subjected to microwave curing or heat curing, is simple in preparation method, and has the excellent performance of good storage stability, fast strength establishment and the like.

Description

technical field [0001] The invention relates to a novel wood glue, which belongs to the field of building materials. Background technique [0002] Traditional adhesives mainly include urea-formaldehyde glue and latex glue. Urea-formaldehyde glue has the advantages of cheap price, fast curing speed, no color, good mixing with water, and convenient use. It is widely used in the manufacture of wood-based panels. However, the presence of residual formaldehyde in urea-formaldehyde glued panels made by traditional techniques and formulas The problem of exceeding the standard is the long-term release of free formaldehyde. Formaldehyde is recognized as a potential carcinogen in the world. With the strengthening of people's awareness of environmental protection, the development of low-formaldehyde or formaldehyde-free adhesives has become one of the main development directions of the industry. VAE emulsion glue is an important water-based glue, which meets the increasingly stringen...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/02C09J129/04C09J197/00C09J11/04C09J11/06
Inventor 黄艳
Owner 黄艳
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
Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com