CN103013406A - Environment-friendly plywood - Google Patents
Environment-friendly plywood Download PDFInfo
- Publication number
- CN103013406A CN103013406A CN201210517258XA CN201210517258A CN103013406A CN 103013406 A CN103013406 A CN 103013406A CN 201210517258X A CN201210517258X A CN 201210517258XA CN 201210517258 A CN201210517258 A CN 201210517258A CN 103013406 A CN103013406 A CN 103013406A
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- Prior art keywords
- urea
- formaldehyde glue
- environmental protection
- protection type
- additive
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Abstract
The invention provides environment-friendly plywood. The environment-friendly plywood is formed by cohering and hot-pressing a plurality of veneers through urea-formaldehyde glue, wherein an additive and a curing agent are added into the urea-formaldehyde glue, and peanut shells are used as the additive. According to the environment-friendly plywood, the use of crops can be effectively popularized, the cost is lowered, and the release amount of formaldehyde in the plywood can be reduced, thereby being an environment-friendly plywood.
Description
Technical field
The present invention relates to a kind of environmental protection type veneer board, belong to the Wood-based Panel Production field.
Technical background
Glued board generally needed to add some filler with urea-formaldehyde glue before gluing, to improve the initial viscosity of sizing agent, prevent that glue from too permeating, affecting processing performance and precompressed performance.Filler can also play the slight void of filling sizing agent shrink curing and producing, the effect that reduces solidification internal stress, improves bonding strength simultaneously.Generally adopt coconut shell flour, tree bark powder, mineral powder, soyflour etc. as the additive of urea-formaldehyde glue abroad, the mineralogical compositions such as domestic main employing flour, light calcium carbonate.
The present invention as the additive of urea-formaldehyde resin adhesive, has effectively promoted the use of farm crop take Pericarppium arachidis hypogaeae as raw material after pulverizing, and reduces cost, can reduce the burst size of glued board formaldehyde simultaneously, is a kind of environmental protection type veneer board.
Summary of the invention
The purpose of this invention is to provide a kind of environmental protection type veneer board, can reduce cost, reduction of formaldehyde emission.
For realizing above purpose, a kind of environmental protection type veneer board of the present invention, binding hot pressing by multilayer single plate with urea-formaldehyde glue forms, add additive and solidifying agent in the urea-formaldehyde glue, additive was the Pericarppium arachidis hypogaeae powder of 200 mesh sieves, and its moisture content is less than 5%, and consumption is the 10%-20% of urea-formaldehyde glue quality, solidifying agent is ammonium chloride, and its consumption is the 1%-2% of tackiness agent quality.
The beneficial effect that the present invention produces is that the present invention adds Pericarppium arachidis hypogaeae in urea-formaldehyde glue, can significantly reduce the burst size of methanal of glued board, because contain the compositions such as a large amount of flavones, tannin in the pomelo peel, can effectively remove formaldehyde free in the urea-formaldehyde glue.
The present invention adds the Pericarppium arachidis hypogaeae powder in urea-formaldehyde glue, can significantly improve the bonding strength of glued board, has preferably filling effect because be crushed to 200 purpose Pericarppium arachidis hypogaeae powder, can reduce the stress between bonding interface, improves bonding strength.
Embodiment
Embodiment 1:
Be pressed into glued board by multilayer single plate with the urea-formaldehyde glue adhesion heat, wherein add additive and solidifying agent in the urea-formaldehyde glue, additive was the Pericarppium arachidis hypogaeae of 200 mesh sieves, its moisture content is less than 5%, its consumption is 10% of urea-formaldehyde glue quality, and solidifying agent is ammonium chloride, and its consumption is 1% of tackiness agent quality.
Embodiment 2:
Be pressed into glued board by multilayer single plate with the urea-formaldehyde glue adhesion heat, add additive and solidifying agent in the urea-formaldehyde glue, additive was the Pericarppium arachidis hypogaeae of 200 mesh sieves, its moisture content is less than 5%, its consumption is 15% of urea-formaldehyde glue quality, and solidifying agent is ammonium chloride, and its consumption is 1.5% of tackiness agent quality.
Embodiment 3:
Be pressed into glued board by multilayer single plate with the urea-formaldehyde glue adhesion heat, add additive and solidifying agent in the urea-formaldehyde glue, additive was the Pericarppium arachidis hypogaeae of 200 mesh sieves, its moisture content is less than 5%, its consumption is 20% of urea-formaldehyde glue quality, and solidifying agent is ammonium chloride, and its consumption is 2% of tackiness agent quality.
The burst size of methanal of the glued board of each embodiment and the data of bonding strength are as shown in table 1.The burst size of methanal of glued board of the present invention and bonding strength all can be up to state standards, and are environmental protection type veneer boards.
The burst size of methanal of the glued board of each embodiment of table 1 and the data of bonding strength
| ? | Burst size of methanal (mg/L) | Bonding strength (MPa) |
| Embodiment 1 | 0.68 | 0.88 |
| Embodiment 2 | 0.72 | 0.95 |
| Embodiment 3 | 0.83 | 0.79 |
| National standard | E 1≤1.5 | ≥0.70 |
Claims (4)
1. an environmental protection type veneer board binds hot pressing by multilayer single plate with urea-formaldehyde glue and forms, and adds additive and solidifying agent in the described urea-formaldehyde glue, it is characterized in that, described additive is the Pericarppium arachidis hypogaeae powder.
2. a kind of environmental protection type veneer board as claimed in claim 1 is characterized in that, described Pericarppium arachidis hypogaeae drying makes moisture content less than 5%, crosses 200 mesh sieves after pulverizing.
3. a kind of environmental protection type veneer board as claimed in claim 1 or 2 is characterized in that, the consumption of described Pericarppium arachidis hypogaeae powder is the 10%-20% of urea-formaldehyde glue quality.
4. a kind of environmental protection type veneer board as claimed in claim 1 is characterized in that, described solidifying agent is ammonium chloride, and its consumption is the 1%-2% of tackiness agent quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210517258XA CN103013406A (en) | 2012-12-06 | 2012-12-06 | Environment-friendly plywood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210517258XA CN103013406A (en) | 2012-12-06 | 2012-12-06 | Environment-friendly plywood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103013406A true CN103013406A (en) | 2013-04-03 |
Family
ID=47962531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210517258XA Pending CN103013406A (en) | 2012-12-06 | 2012-12-06 | Environment-friendly plywood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103013406A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844181A (en) * | 2006-04-05 | 2006-10-11 | 北京林业大学 | Urea-formaldehyde resin and urea-formaldehyde resin glue and preparation method thereof |
| WO2011138858A1 (en) * | 2010-05-06 | 2011-11-10 | 株式会社コシイウッドソリューションズ | Adhesive composition for plywood, method for producing plywood, and plywood |
-
2012
- 2012-12-06 CN CN201210517258XA patent/CN103013406A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844181A (en) * | 2006-04-05 | 2006-10-11 | 北京林业大学 | Urea-formaldehyde resin and urea-formaldehyde resin glue and preparation method thereof |
| WO2011138858A1 (en) * | 2010-05-06 | 2011-11-10 | 株式会社コシイウッドソリューションズ | Adhesive composition for plywood, method for producing plywood, and plywood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130403 |