CN102975271A - Shaving board with low formaldehyde release - Google Patents
Shaving board with low formaldehyde release Download PDFInfo
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- CN102975271A CN102975271A CN2012105172575A CN201210517257A CN102975271A CN 102975271 A CN102975271 A CN 102975271A CN 2012105172575 A CN2012105172575 A CN 2012105172575A CN 201210517257 A CN201210517257 A CN 201210517257A CN 102975271 A CN102975271 A CN 102975271A
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- wood shavings
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Abstract
The invention relates to a shaving board with low formaldehyde release which comprises an upper surface layer, a lower surface layer and a core layer, wherein the surface layers are mixed wood shavings of cotton stalk wood shavings and pinus thunbergii wood shavings which have the same mass; and the core layer is pure cotton stalk wood shavings. The shaving board remarkably reduces the formaldehyde release quantity, thus being in accordance with the requirements of people for the safety and environmental protection property of material.
Description
Technical field
The present invention relates to the particieboard that a kind of low formaldehyde discharges, belong to the Wood-based Panel Production field.
Technical background
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 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 low formaldehyde discharges, significantly reduction of formaldehyde emission.
For realizing above purpose, the particieboard that a kind of low formaldehyde of the present invention discharges, comprise up and down top layer, sandwich layer, the top layer is the cotton stalk wood shavings of equal in quality and the wood shavings that mix of black pine wood shavings, sandwich layer is textile bar wood shavings, the water content of wood shavings is 5%-7%, and the wood shavings mass ratio of top layer and sandwich layer is 70:30-40:60; 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 3%-5% 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 cotton stalk wood shavings of equal in quality and the wood shavings that mix of black pine wood shavings, sandwich layer is textile bar wood shavings, cotton stalk has significant aldehydes removal effect, and sandwich layer of the present invention is textile bar wood shavings, in hot pressing, formaldehyde is to the sandwich layer transmission, and the cotton stalk and the formaldehyde that are conducive to sandwich layer fully react, and reduces the burst size of formaldehyde.
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, to control the moisture content of wood shavings be 5%-7% in the present invention, in the identical situation of other conditions, the wood shavings moisture content in above-mentioned scope constantly, burst size of methanal is low, physical and mechanical property all satisfies national standard.If the wood shavings moisture content is high, then in the hot-press solidifying process, the humidity of plank inside raises, higher humidity can be accelerated the hydrolysis of methyl ether key, methylol, hemiacetal, hydrolysis has produced free formaldehyde, and this part formaldehyde not necessarily all discharges in hot pressing, if produce formaldehydogenic amount more than the increment that discharges in the hot pressing, the free formaldehyde that then remains in the plate is also many, becomes so the formaldehyde behind the plate to discharge also thereupon more.
Embodiment
Embodiment 1:
The particieboard that a kind of low formaldehyde discharges comprises up and down top layer, sandwich layer, and the top layer is the cotton stalk wood shavings of equal in quality and the wood shavings that mix of black pine wood shavings, and sandwich layer is textile bar wood shavings, and the water content of wood shavings is 5%, and the wood shavings mass ratio of top layer and sandwich layer is 70:30; 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 3% of sandwich layer wood shavings quality.
Embodiment 2:
The particieboard that a kind of low formaldehyde discharges comprises up and down top layer, sandwich layer, and the top layer is the cotton stalk wood shavings of equal in quality and the wood shavings that mix of black pine wood shavings, and sandwich layer is textile bar wood shavings, and the water content of wood shavings is 6%, and the wood shavings mass ratio of top layer and sandwich layer is 60:40; 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 4% of sandwich layer wood shavings quality.
Embodiment 3:
The particieboard that a kind of low formaldehyde discharges comprises up and down top layer, sandwich layer, and the top layer is the cotton stalk wood shavings of equal in quality and the wood shavings that mix of black pine wood shavings, and sandwich layer is textile bar wood shavings, and the water content of wood shavings is 7%, 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 10% of top layer wood shavings quality, and sandwich layer applies MDI, and applied amount is 5% of sandwich layer wood shavings quality.
Embodiment 4:
The particieboard that a kind of low formaldehyde discharges comprises up and down top layer, sandwich layer, and the top layer is the cotton stalk wood shavings of equal in quality and the wood shavings that mix of black pine wood shavings, and sandwich layer is textile bar wood shavings, and the water content of wood shavings is 5%, 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 4% 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 one kind low particieboard that formaldehyde discharges comprises up and down top layer, sandwich layer, it is characterized in that described top layer is the cotton stalk wood shavings of equal in quality and the wood shavings that mix of black pine wood shavings, and sandwich layer is textile bar wood shavings.
2. the particieboard of a kind of 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 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 3%-5% of sandwich layer wood shavings quality.
4. the particieboard of a kind of low formaldehyde release as claimed in claim 1 or 2 is characterized in that the water content of described cotton stalk wood shavings and black pine wood shavings is 5%-7%.
5. the particieboard of a kind of 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 70:30-40:60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210517257.5A CN102975271B (en) | 2012-12-06 | 2012-12-06 | A kind of particieboard of low formaldehyde emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210517257.5A CN102975271B (en) | 2012-12-06 | 2012-12-06 | A kind of particieboard of low formaldehyde emission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102975271A true CN102975271A (en) | 2013-03-20 |
| CN102975271B CN102975271B (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210517257.5A Active CN102975271B (en) | 2012-12-06 | 2012-12-06 | A kind of particieboard of low formaldehyde emission |
Country Status (1)
| Country | Link |
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| CN (1) | CN102975271B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108748597A (en) * | 2018-06-19 | 2018-11-06 | 万华禾香板业有限责任公司 | The manufacturing method and multilayer particieboard of multilayer particieboard |
| CN110103308A (en) * | 2018-02-01 | 2019-08-09 | 寿光市鲁丽木业股份有限公司 | It is a kind of can facing oriented wood chipboard glue-applying technique |
| CN112192691A (en) * | 2020-09-29 | 2021-01-08 | 山东俏家装饰新材料有限公司 | LSB plate production process |
Citations (5)
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| 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 |
| US20090270534A1 (en) * | 2006-09-22 | 2009-10-29 | Lopez Richard A | Processes and Manufacturing Methods to Produce an Aqueous Thermosetting Fire-Rated Fire-Retardant Polymeric Adhesive Composition for Manufacturing Interior or Exterior Fire-Rated Cellulosic Products |
| CN102464965A (en) * | 2010-11-03 | 2012-05-23 | 王福华 | Isocyanate adhesive for artificial plate |
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2012
- 2012-12-06 CN CN201210517257.5A patent/CN102975271B/en active Active
Patent Citations (5)
| 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 |
| US20090270534A1 (en) * | 2006-09-22 | 2009-10-29 | Lopez Richard A | Processes and Manufacturing Methods to Produce an Aqueous Thermosetting Fire-Rated Fire-Retardant Polymeric Adhesive Composition for Manufacturing Interior or Exterior Fire-Rated Cellulosic Products |
| 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 |
| CN102464965A (en) * | 2010-11-03 | 2012-05-23 | 王福华 | Isocyanate adhesive for artificial plate |
Non-Patent Citations (2)
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| 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103308A (en) * | 2018-02-01 | 2019-08-09 | 寿光市鲁丽木业股份有限公司 | It is a kind of can facing oriented wood chipboard glue-applying technique |
| CN108748597A (en) * | 2018-06-19 | 2018-11-06 | 万华禾香板业有限责任公司 | The manufacturing method and multilayer particieboard of multilayer particieboard |
| CN112192691A (en) * | 2020-09-29 | 2021-01-08 | 山东俏家装饰新材料有限公司 | LSB plate production process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102975271B (en) | 2015-11-25 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Baoguo Inventor before: Su Jianli |
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| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151012 Address after: 101111 Beijing Tongzhou District light mechanical and electrical integration industrial base Applicant after: ZIBO ZHENGBANG INTELLECTUAL PROPERTY PLANNING CO., LTD. Address before: 266061 Shandong, Laoshan, Hongkong East Road, No. Pioneering Park, biological park, room 248, No. 239 Applicant before: Qingdao Wenchuang Science & Technology Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
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Address after: 101100 Duozi Village South, Taihu Town, Tongzhou District, Beijing Patentee after: Jingtai Holding Group Co.,Ltd. Address before: 101111 Beijing Tongzhou District light mechanical and electrical integration industrial base Patentee before: BEIJING SHIJI KINTIG FURNITURE Co.,Ltd. |