CN102990761A - Shaving board with ultra-low formaldehyde emission - Google Patents
Shaving board with ultra-low formaldehyde emission Download PDFInfo
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- CN102990761A CN102990761A CN2012105172560A CN201210517256A CN102990761A CN 102990761 A CN102990761 A CN 102990761A CN 2012105172560 A CN2012105172560 A CN 2012105172560A CN 201210517256 A CN201210517256 A CN 201210517256A CN 102990761 A CN102990761 A CN 102990761A
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- wood shavings
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- top layer
- particieboard
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Abstract
The invention discloses a shaving board with ultra-low formaldehyde emission. The shaving board with ultra-low formaldehyde emission comprises upper and lower surface layers and a core layer, wherein the surface layers are black pine wood shavings, and the core layer is coconut shavings. The formaldehyde emission of the shaving board disclosed by the invention is almost zero, and the shaving board accords with high requirements of people on the security and environmental protection property of the material.
Description
Technical field
The present invention relates to the particieboard that a kind of ultra-low formaldehyde discharges, belong to the Wood-based Panel Production field.
Background technology
The kind of wood-based plate has a lot, and wherein the performance of particieboard and medium density fibre board (MDF) compare favourably, and cost is lower, has obtained developing rapidly in China.Along with the fast development of national economy and the raising of people's environmental consciousness, people have higher requirement to security and the feature of environmental protection of material.The invention provides the particieboard that a kind of ultra-low formaldehyde discharges, significantly reduction of formaldehyde emission.
Summary of the invention
The purpose of this invention is to provide the particieboard that a kind of ultra-low formaldehyde discharges, burst size of methanal is almost nil.
For realizing above purpose, the particieboard that a kind of ultra-low formaldehyde of the present invention discharges comprises up and down top layer, sandwich layer, and the top layer is the black pine wood shavings, and sandwich layer is the coconut husk wood shavings, and the water content of wood shavings is 5%-7%, and the wood shavings mass ratio of top layer and sandwich layer is 50:50-30:70; The top layer applies Lauxite (UF resin), and applied amount is the 8%-10% of top layer wood shavings quality, and sandwich layer applies isocyanide ester adhesive (MDI), and applied amount is the 1%-2% of sandwich layer wood shavings quality.
The beneficial effect that the present invention produces is that the present invention takes following measures to reduce the burst size of methanal of particieboard:
One, particieboard of the present invention top layer is the black pine wood shavings, sandwich layer is the coconut husk wood shavings, in hot pressing, formaldehyde is to the sandwich layer transmission, the tannin and the formaldehyde that are conducive in the coconut husk fully react, and generate natural glue, have not only reduced burst size of methanal, and reduced the applied amount of adhesive, improved internal bond strength.
Two, particieboard sandwich layer of the present invention adopts MDI to replace the UF resin, reduce the source that produces free formaldehyde, while MDI is reduction of formaldehyde emission effectively, and improves internal bond strength, and sandwich layer wood shavings quality proportion is higher, and then burst size of methanal is lower, internal bond strength is higher.Because in hot pressing, the heat on top layer by steam to the sandwich layer transmission, formaldehyde along with steam also to the sandwich layer transmission, the MDI of a part of formaldehyde and sandwich layer reacts away, thereby reduces the burst size of formaldehyde.
Three, verify through many experiments, UF resin applied amount is the 8%-10% of top layer wood shavings quality on the top layer, sandwich layer MDI applied amount is in the situation of 1%-2% of sandwich layer wood shavings quality, when the wood shavings mass ratio of top layer and sandwich layer is 50:50-30:70, formaldehyde can be reacted away by the tannin in the coconut husk to greatest extent, and burst size of methanal is almost nil.
Embodiment
Embodiment 1:
The particieboard that a kind of ultra-low formaldehyde discharges comprises up and down top layer and sandwich layer, and the top layer is the black pine wood shavings, and sandwich layer is the coconut husk wood shavings, and the water content of wood shavings is 5%, and the wood shavings mass ratio of top layer and sandwich layer is 50:50; The top layer applies the UF resin, and applied amount is 8% of top layer wood shavings quality, and sandwich layer applies MDI, and applied amount is 2% of sandwich layer wood shavings quality.
Embodiment 2:
The particieboard that a kind of ultra-low formaldehyde discharges comprises up and down top layer and sandwich layer, and the top layer is the black pine wood shavings, and sandwich layer is the coconut husk wood shavings, and the water content of wood shavings is 6%, and the wood shavings mass ratio of top layer and sandwich layer is 40:60; The top layer applies the UF resin, and applied amount is 9% of top layer wood shavings quality, and sandwich layer applies MDI, and applied amount is 1% of sandwich layer wood shavings quality.
Embodiment 3:
The particieboard that a kind of ultra-low formaldehyde discharges comprises up and down top layer and sandwich layer, and the top layer is the black pine wood shavings, and sandwich layer is the coconut husk wood shavings, and the water content of wood shavings is 7%, and the wood shavings mass ratio of top layer and sandwich layer is 30:70; The top layer applies the UF resin, and applied amount is 10% of top layer wood shavings quality, and sandwich layer applies MDI, and applied amount is 1% of sandwich layer wood shavings quality.
The burst size of methanal of the particieboard of each embodiment and the data of physical and mechanical property are as shown in table 1.
The burst size of methanal of the particieboard that each embodiment of table 1 produces and the data of physical and mechanical property
Claims (5)
1. the particieboard that ultra-low formaldehyde discharges comprises up and down top layer and sandwich layer, it is characterized in that described top layer is the black pine wood shavings, and sandwich layer is the coconut husk wood shavings.
2. the particieboard of a kind of ultra-low formaldehyde release as claimed in claim 1 is characterized in that described top layer applies the UF resin, and sandwich layer applies MDI.
3. the particieboard of a kind of ultra-low formaldehyde release as claimed in claim 2 is characterized in that the applied amount of described top layer UF resin is the 8%-10% of top layer wood shavings quality, and the applied amount of described sandwich layer MDI is the 1%-2% of sandwich layer wood shavings quality.
4. the particieboard of a kind of ultra-low formaldehyde release as claimed in claim 1 or 2 is characterized in that the water content of described coconut husk wood shavings and black pine wood shavings is 5%-7%.
5. the particieboard of a kind of ultra-low formaldehyde release as claimed in claim 1 or 2 is characterized in that the wood shavings mass ratio of described top layer and sandwich layer is 50:50-30:70.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105172560A CN102990761A (en) | 2012-12-06 | 2012-12-06 | Shaving board with ultra-low formaldehyde emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105172560A CN102990761A (en) | 2012-12-06 | 2012-12-06 | Shaving board with ultra-low formaldehyde emission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102990761A true CN102990761A (en) | 2013-03-27 |
Family
ID=47920133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105172560A Pending CN102990761A (en) | 2012-12-06 | 2012-12-06 | Shaving board with ultra-low formaldehyde emission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102990761A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985257A (en) * | 2016-12-14 | 2017-07-28 | 宁波中科朝露新材料有限公司 | A kind of low formaldehyde particieboard and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2837066Y (en) * | 2005-09-22 | 2006-11-15 | 南京林业大学 | Bio-material rice or wheat straw shavings/wood fiber composite board |
| CN1880034A (en) * | 2005-06-13 | 2006-12-20 | 北京克诺森华地板有限公司 | Ultra-low formaldehyde content fibreboard |
| CN101125436A (en) * | 2007-09-21 | 2008-02-20 | 沈阳重型机械集团有限责任公司 | Technology for producing wood wheat straw composite type directional structure board |
| CN202181686U (en) * | 2011-07-14 | 2012-04-04 | 栾清杨 | Environment-friendly indoor activated carbon board |
-
2012
- 2012-12-06 CN CN2012105172560A patent/CN102990761A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1880034A (en) * | 2005-06-13 | 2006-12-20 | 北京克诺森华地板有限公司 | Ultra-low formaldehyde content fibreboard |
| CN2837066Y (en) * | 2005-09-22 | 2006-11-15 | 南京林业大学 | Bio-material rice or wheat straw shavings/wood fiber composite board |
| CN101125436A (en) * | 2007-09-21 | 2008-02-20 | 沈阳重型机械集团有限责任公司 | Technology for producing wood wheat straw composite type directional structure board |
| CN202181686U (en) * | 2011-07-14 | 2012-04-04 | 栾清杨 | Environment-friendly indoor activated carbon board |
Non-Patent Citations (2)
| Title |
|---|
| 志邦采购部: "《刨花板.饰面板工艺技术》", 15 December 2011, article "刨花板.中纤板.饰面板工艺技术", pages: 1 - 2 * |
| 陆仁书: "《刨花板制造学》", 30 April 1994, article "刨花板制造学", pages: 20-21 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985257A (en) * | 2016-12-14 | 2017-07-28 | 宁波中科朝露新材料有限公司 | A kind of low formaldehyde particieboard and preparation method thereof |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |