CN104403628A - Improved environment-friendly woodware adhesive - Google Patents
Improved environment-friendly woodware adhesive Download PDFInfo
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- CN104403628A CN104403628A CN201410691993.1A CN201410691993A CN104403628A CN 104403628 A CN104403628 A CN 104403628A CN 201410691993 A CN201410691993 A CN 201410691993A CN 104403628 A CN104403628 A CN 104403628A
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Abstract
The invention discloses an improved environment-friendly woodware adhesive which is prepared from the following raw materials in parts by weight: 2.3-4.5 parts of polyisocyanate, 1.2-2.3 parts of polyvinylpyrrolidone, 3-8 parts of fish glue, 1.5-2.8 parts of isobutyl p-hydroxybenzoate, 3-7 parts of cassava starch, 5-10 parts of ethyl alcohol and 0.5-1.2 parts of sodium diisooctyl sulfosuccinate. Compared with the conventional product, the woodware adhesive provided by the invention belongs to a water-soluble adhesive, contains no formaldehyde and is environment-friendly. The woodware adhesive adopts water-soluble allyl monomers for grafting, can adhere wood materials by grafting and crosslinking to the surface of the cassava starch and has high bonding strength; the woodware adhesive has high storage stability and quick strength establishment, and can be widely applied to wood splicing, artificial boards and other fields; a piece of plywood applying the adhesive achieves the initial bonding strength of 1.3-2.2 Mpa and the bonding strength of 0.45-0.85 Mpa.
Description
Technical field
The present invention relates to a kind of environmental protection woodenware glue of improvement, belong to building material field.
Background technology
Tradition sizing agent mainly contains urea-formaldehyde glue, emulsion glue etc.Urea-formaldehyde glue have low price, curing speed fast, without color, can mix very well with water, the advantage such as easy to use, widespread use in wood-based plate manufactures, but at present there is the problem that removing residue formaldehyde exceeds standard in traditional technology and the obtained urea-formaldehyde glue sheet of formula, and free formaldehyde discharges lastingly.Formaldehyde is the potential carcinogen of generally acknowledging in the world, along with the reinforcement of people's environmental consciousness, develops one of low formaldehyde or the formaldehydeless sizing agent main development direction becoming the industry.VAE emulsion glue is important water base adhesive, meets the environmental requirement of increasingly stringent, has vast potential for future development and application prospect.VAE emulsion glue is the abbreviation of vinyl acetate between to for plastic (VAc) and ethene (Ethyl-ene) monomer emulsion multipolymer, with it for base-material add viscosity increaser, thickening material, linking agent, weighting agent after make VAE emulsion sizing agent.VAE emulsion gluing has that wet stickiness is good, curing speed is very fast, shelf-stable, water tolerance good weatherability, not easily aging, aldehyde contenting amount are less than 3.8 × 10-6, can bonding multiple material, the advantage such as safe and convenient to use.But VAE emulsion glue is still containing a small amount of formaldehyde, still fail to control very well to free formaldehyde volatile matter.In addition, although VAE emulsion glue directly can be used as sizing agent, the performances such as its original viscosity, bonding strength, water tolerance, curing speed, viscosity are not ideal enough, and application is restricted.If can research and develop formaldehydeless preparation method, improved by means such as blended, crosslinked, hydrolysis, increasing stick and improved its performance, reduce costs, VAE emulsion glue will become rare environment-friendlyadhesive adhesive simultaneously.
Summary of the invention
For the deficiency that prior art exists, technical problem to be solved by this invention is, provides a kind of environmental protection woodenware glue of improvement, not containing formaldehyde, and reduces the original viscosity of sizing agent, improves bonding strength and curing speed.
For solving the problems of the technologies described above, the technical scheme that the present invention takes is, a kind of environmental protection woodenware glue of improvement,
Be made up of the raw material of following parts by weight: polyisocyanates 2.3-4.5 part, polyvinylpyrrolidone 1.2-2.3 part, fish glue 3-8 part, p-hydroxybenzoic acid isobutyl ester 1.5-2.8 part, tapioca (flour) 3-7 part, ethanol 5-10 part, diisooctyl amber semi-annular jade pendant acid sodium 0.5-1.2 part.
Optimize, the environmental protection woodenware glue of above-mentioned improvement, be made up of the raw material of following parts by weight:
Polyisocyanates 3.6 parts, polyvinylpyrrolidone 1.8 parts, 7 parts, fish glue, p-hydroxybenzoic acid isobutyl ester 2.3 parts, tapioca (flour) 4 parts, ethanol 8 parts, diisooctyl amber semi-annular jade pendant acid 0.7 part, sodium.
The present invention, compared with existing product, belongs to water-soluble sizing agent, not containing formaldehyde, and safety and environmental protection; Sizing agent of the present invention uses hydrophilic vinyl monomer grafting, and by the grafting on tapioca (flour) surface and can be cross-linked the gluing of wood materials, bonding strength is high; Excellent storage stability, intensity are set up fast; The fields such as timber is assembled, wood-based plate can be widely used in; Apply the glued board that this sizing agent manufactures, its initial adhesive strength can reach 1.3-2.2Mpa, and bonding strength can reach 0.45 ~ 0.85Mpa.
Embodiment
embodiment 1
The present invention is a kind of environmental protection woodenware glue of improvement, is made up of the raw material of following parts by weight:
Polyisocyanates 2.3 parts, polyvinylpyrrolidone 1.2 parts, 3 parts, fish glue, p-hydroxybenzoic acid isobutyl ester 1.5 parts, tapioca (flour) 3 parts, ethanol 5 parts, diisooctyl amber semi-annular jade pendant acid 0.5 part, sodium.
embodiment 2
The present invention is a kind of environmental protection woodenware glue of improvement, is made up of the raw material of following parts by weight:
Polyisocyanates 4.5 parts, polyvinylpyrrolidone 2.3 parts, 8 parts, fish glue, p-hydroxybenzoic acid isobutyl ester 2.8 parts, tapioca (flour) 7 parts, ethanol 10 parts, diisooctyl amber semi-annular jade pendant acid 1.2 parts, sodium.
embodiment 3
The present invention is a kind of environmental protection woodenware glue of improvement, is made up of the raw material of following parts by weight:
Polyisocyanates 3.6 parts, polyvinylpyrrolidone 1.8 parts, 7 parts, fish glue, p-hydroxybenzoic acid isobutyl ester 2.3 parts, tapioca (flour) 4 parts, ethanol 8 parts, diisooctyl amber semi-annular jade pendant acid 0.7 part, sodium.
The present invention, compared with existing product, belongs to water-soluble sizing agent, not containing formaldehyde, and safety and environmental protection; Sizing agent of the present invention uses hydrophilic vinyl monomer grafting, and by the grafting on tapioca (flour) surface and can be cross-linked the gluing of wood materials, bonding strength is high; Excellent storage stability, intensity are set up fast; The fields such as timber is assembled, wood-based plate can be widely used in; Apply the glued board that this sizing agent manufactures, its initial adhesive strength can reach 1.3-2.2Mpa, and bonding strength can reach 0.45 ~ 0.85Mpa.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited to above-mentioned citing; those skilled in the art; in essential scope of the present invention, the change made, remodeling, interpolation or replacement, all should belong to protection scope of the present invention.
Claims (2)
1. the environmental protection woodenware glue improved, is characterized in that: be made up of the raw material of following parts by weight:
Polyisocyanates 2.3-4.5 part, polyvinylpyrrolidone 1.2-2.3 part, fish glue 3-8 part, p-hydroxybenzoic acid isobutyl ester 1.5-2.8 part, tapioca (flour) 3-7 part, ethanol 5-10 part, diisooctyl amber semi-annular jade pendant acid sodium 0.5-1.2 part.
2. the environmental protection woodenware glue of improvement according to claim 1, is characterized in that:
Be made up of the raw material of following parts by weight: polyisocyanates 3.6 parts, polyvinylpyrrolidone 1.8 parts, 7 parts, fish glue, p-hydroxybenzoic acid isobutyl ester 2.3 parts, tapioca (flour) 4 parts, ethanol 8 parts, diisooctyl amber semi-annular jade pendant acid 0.7 part, sodium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410691993.1A CN104403628A (en) | 2014-11-27 | 2014-11-27 | Improved environment-friendly woodware adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410691993.1A CN104403628A (en) | 2014-11-27 | 2014-11-27 | Improved environment-friendly woodware adhesive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104403628A true CN104403628A (en) | 2015-03-11 |
Family
ID=52641300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410691993.1A Pending CN104403628A (en) | 2014-11-27 | 2014-11-27 | Improved environment-friendly woodware adhesive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104403628A (en) |
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2014
- 2014-11-27 CN CN201410691993.1A patent/CN104403628A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |
|
| WD01 | Invention patent application deemed withdrawn after publication |