CN108312284A - A kind of environmental protection furniture material production technology - Google Patents
A kind of environmental protection furniture material production technology Download PDFInfo
- Publication number
- CN108312284A CN108312284A CN201810065165.5A CN201810065165A CN108312284A CN 108312284 A CN108312284 A CN 108312284A CN 201810065165 A CN201810065165 A CN 201810065165A CN 108312284 A CN108312284 A CN 108312284A
- Authority
- CN
- China
- Prior art keywords
- wood
- formaldehyde
- production technology
- material production
- environmentally friendly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/0209—Methods, e.g. characterised by the composition of the agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/14—Distributing or orienting the particles or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C09J161/32—Modified amine-aldehyde condensates
Abstract
The invention discloses a kind of environmentally friendly furniture material production technologies, reduce the content of formaldehyde by three aspects, first, by the way that lignin modified urea resin is added, the usage amount of formaldehyde are reduced, to reduce the content of formaldehyde；Second is that by the way that thermoplastic film is added, the usage amount of Lauxite is reduced, reduces the content of plank unit area formaldehyde；Third, absorbing free formaldehyde by ammonia, it is further reduced the content of plank unit area formaldehyde.
Description
Technical field
The invention belongs to furniture material production fields, are a kind of lifes of the environment protection type sheet material of Furniture manufacturing specifically
Production. art.
Background technology
The base material generally use solid wood granule plate and medium density fibre board (MDF) of Furniture manufacturing at present, these materials have weight
Gently, intensity is than advantages such as high, elastic good, impact resistance, texture rich palette beauty and handling eases, but solid wood granule plate is in
Largely with synthetic resin of the liquid containing aldehyde, such as Lauxite, melmac conduct in density fiber board production process
Glue adhesive, the formaldehyde that product can all release during manufacture and use can generate greatly danger to human body and environment
Evil.
Have many advantages, such as that nontoxic, colourless, ageing-resistant, long-time service is non-discolouring, at low cost after Lauxite solidification, answers extensively
For Wood-based Panel Production；But in the production process of Lauxite, due to formaldehyde mole ratio is excessively high or controlling of production process not
When easily causing remaining free formaldehyde content in Lauxite higher, while due to adherend during Fibreboard Production
The intervention resin methylol and methylene ether link of fiber generate division and release formaldehyde.
Invention content
Purpose of the present invention is to be intended to provide a kind of environmentally friendly furniture material production technology, first, by the way that lignin modification is added
Lauxite reduces the content of formaldehyde；Second is that by the way that thermoplastic film is added, the usage amount of Lauxite is reduced, reduces plank
The content of unit area formaldehyde；Third, absorbing free formaldehyde by ammonia, it is further reduced plank unit area formaldehyde
Content.
To realize the above-mentioned technical purpose, the technical solution adopted by the present invention is as follows：
A kind of environmental protection furniture material production technology, includes the following steps,
(1) it stocks up, wood fibre or wood particle is dried to moisture content 0-5%, thermoplastic film is subjected to plasma
Processing；
(2) be glued and stir, by after drying wood fibre or wood particle be delivered in blender, in the process of stirring
In, lignin urea-formaldehyde resin adhesive is sprayed, until stirring evenly；
(3) by the wood fibre stirred evenly or wood particle, equably thermoplasticity of the spreading after plasma treated is thin
On film, according to the thickness of target plate, the number of plies of wood fibre or wood particle is determined, in each layer of wood fibre or wooden plane
Spend uniform spreading on the thermoplastic film after plasma treated, on wherein last layer of wood fibre or wood particle
Surface be also laid with one layer it is plasma treated after thermoplastic film；
(4) material paved in step (3) is sent into hot press and carries out first time hot pressing；
(5) material after first time hot pressing is dried in the air to room temperature, it is small places it in 10-12 in the container full of ammonia
When；
(6) then carry out it is second hot-forming, will be hot-forming after plank be placed on the trigger that dries in the air and dry in the air to room temperature,
Continue to cool down after stacking；
(7) plank is carried out the post-processings such as cutting edge, sanding, veneer by post-processing.
Using the invention of above-mentioned technical proposal, contain various active functional group in lignin, such as hydroxyl, carbonyl, carboxyl, methyl
And side-chain structure, therefore it can substitute part formaldehyde and urea reaction, to reduce the dosage of formaldehyde, reduce adhesive formaldehyde
Content, and at the same time lignin itself has viscous stickiness；Thermoplastic film is fully melted, sprawls and is oozed after first time hot pressing
In the cellular structure for entering wood fibre or wood particle, the usage amount of urea-formaldehyde resin adhesive can be efficiently reduced, into one
The content that step reduces formaldehyde increases thermoplastic film simultaneously because being pre-processed to thermoplastic film using plasma
Surface-active, improve the interface opening and closing power between thermoplastic film and wood fibre or wood particle, substantially increase plate
The mechanical property of material；Finally ammonia is carried out to the plank after first time hot pressing to fumigate, allow wood fibre to adhere to ammonia, then lead to
Cross second of hot pressing so that ammonia is reacted with the formaldehyde being free in plank, further decreases the content of formaldehyde.
Preferably as a kind of one kind of environmentally friendly furniture material production technology of the present invention, lignin urea-formaldehyde resin adhesive is profit
Be raw material with the sulfate-reducing conditions or sulfonate lignin and urea, formaldehyde and additive extracted in papermaking wastewater, prepare and
Come, the content of formaldehyde of the adhesive<1.5%.
Preferably as a kind of another kind of environmentally friendly furniture material production technology of the present invention, sulfate-reducing conditions or sulfonate wood
The mass fraction of quality is 30-40%.
It is found by many experiments, when the addition of sulfate-reducing conditions or sulfonate lignin is 30%, adhesive
Tensile strength it is maximum (reaching 8.67MPa)；When the addition of sulfate-reducing conditions or sulfonate lignin is 40%, dissociate
Content of formaldehyde is minimum (being only 0.18%)；When lignin additive amount is more than 40%, enough crosslinkings cannot be formed after resin solidification
Key, bonding strength degradation.
Another as a kind of environmentally friendly furniture material production technology of the present invention is preferred, and the thermoplastic film is poly- third
One kind in alkene, polyethylene.
Polypropylene and polyethylene are common thermoplastic, are readily available and cheap.
Another as a kind of environmentally friendly furniture material production technology of the present invention is preferred, per 100kg wood fibres or wooden
Wood shavings use the lignin urea-formaldehyde resin adhesive 3-6kg.
Preferably as a kind of another kind of environmentally friendly furniture material production technology of the present invention, first time hot pressing temperature is 100-
170℃。
Another as a kind of environmentally friendly furniture material production technology of the present invention is preferred, and second of hot pressing temperature is 50-70
℃。
It is found through overtesting, 50-70 DEG C to be that ammonia is more easy react with formaldehyde.
Specific implementation mode
In order to make those skilled in the art that the present invention may be better understood, with reference to embodiment to the technology of the present invention
Scheme further illustrates.
Embodiment 1
A kind of environmental protection furniture material production technology, specifically comprises the following steps：
(1) it is 0-5% to dry the wood fibre of 100kg to moisture content, and polypropylene film is carried out plasma treatment；
(2) wood fibre after drying is delivered in blender, during stirring, lignin modification is passed through in sprinkling
Urea-formaldehyde resin adhesive 5kg, until stir evenly；
(3) by the wood fibre stirred evenly equably spreading on the polypropylene film film after plasma treated,
The thickness of each layer of wood fibre is 0.3cm, in total 3 layers of spreading, and it is thin to be equipped with polypropylene between each layer of lignocellulosic
Film, and also it is laid with a layer polypropylene film in the upper surface of one layer of wood fibre topmost；
(4) material paved is sent into hot press hot-forming for the first time with 170 DEG C of temperature progress；
(5) material after first time hot pressing is dried in the air to room temperature, is placed it in the container full of ammonia 12 hours；
(6) then with 65 DEG C of temperature carry out second it is hot-forming, will be hot-forming after plank be placed on the trigger that dries in the air
On dry in the air to room temperature, continue to cool down after stacking；
(7) post-processing is finally carried out, plank is subjected to the post-processings such as cutting edge, sanding, veneer.
Wherein, lignin urea-formaldehyde resin adhesive is to utilize sulfate-reducing conditions or the sulfonate wood extracted in papermaking wastewater
Quality is raw material with urea, formaldehyde and additive, is prepared, the content of formaldehyde of the adhesive<1.5%.
The mass fraction of sulfate-reducing conditions or sulfonate lignin is 40%.
Embodiment 2
A kind of environmental protection furniture material production technology, specifically comprises the following steps：
(1) it is 0-5% to dry the wood fibre of 100kg to moisture content, and polyethylene film is carried out plasma treatment；
(2) wood fibre after drying is delivered in blender, during stirring, lignin modification is passed through in sprinkling
Urea-formaldehyde resin adhesive 6kg, until stir evenly；
(3) by the wood fibre stirred evenly, equably spreading is each on the polyethylene film after plasma treated
The thickness of layer wood fibre is 0.25cm, in total 4 layers of spreading, and polyethylene film is equipped between each layer of lignocellulosic,
And also it is laid with layer of polyethylene film in the upper surface of one layer of wood fibre topmost；
(4) material paved is sent into hot press hot-forming for the first time with 110 DEG C of temperature progress；
(5) material after first time hot pressing is dried in the air to room temperature, is placed it in the container full of ammonia 12 hours；
(6) then with 60 DEG C of temperature carry out second it is hot-forming, will be hot-forming after plank be placed on the trigger that dries in the air
On dry in the air to room temperature, continue to cool down after stacking；
(7) post-processing is finally carried out, plank is subjected to the post-processings such as cutting edge, sanding, veneer.
Wherein, lignin urea-formaldehyde resin adhesive is to utilize sulfate-reducing conditions or the sulfonate wood extracted in papermaking wastewater
Quality is raw material with urea, formaldehyde and additive, is prepared, the content of formaldehyde of the adhesive<1.5%.
The mass fraction of sulfate-reducing conditions or sulfonate lignin is 30%.
By plank obtained in above-described embodiment, after by its sanding, after storing 72 hours, containing for free formaldehyde is detected
Amount is only 0.8-2.1mg/100g, reaches E0 ranks.
A kind of environmentally friendly furniture material production technology provided by the invention is described in detail above.Specific embodiment
Illustrate the method and its core concept for being merely used to help understand the present invention.It should be pointed out that for the common skill of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for art personnel, these change
It is also fallen within the protection scope of the claims of the present invention into modification.
Claims (7)
1. a kind of environmental protection furniture material production technology, it is characterised in that：Include the following steps,
(1) it stocks up, wood fibre or wood particle is dried to moisture content 0-5%, thermoplastic film is subjected to plasma treatment；
(2) be glued and stir, by after drying wood fibre or wood particle be delivered in blender, during stirring,
Lignin urea-formaldehyde resin adhesive is sprayed, until stirring evenly；
(3) by the wood fibre stirred evenly or wood particle equably thermoplastic film of the spreading after plasma treated
On, according to the thickness of target plate, the number of plies of wood fibre or wood particle is determined, in each layer of wood fibre or wood particle
Uniform spreading is on the thermoplastic film after plasma treated, wherein last layer of wood fibre or wood particle upper table
Face be also laid with one layer it is plasma treated after thermoplastic film；
(4) material paved in step (3) is sent into hot press and carries out first time hot pressing；
(5) material after first time hot pressing is dried in the air to room temperature, is placed it in the container full of ammonia 10-12 hours；
(6) then carry out it is second hot-forming, will be hot-forming after plank be placed on the trigger that dries in the air and dry in the air to room temperature, stack
After continue to cool down；
(7) plank is carried out the post-processings such as cutting edge, sanding, veneer by post-processing.
2. a kind of environmentally friendly furniture material production technology according to claim 1, it is characterised in that：Lignin urea-formaldehyde resin adhesive
It is original that glutinous agent, which is using the sulfate-reducing conditions or sulfonate lignin extracted in papermaking wastewater and urea, formaldehyde and additive,
Material, is prepared, the content of formaldehyde of the adhesive<1.5%.
3. a kind of environmentally friendly furniture material production technology according to claim 2, it is characterised in that：Sulfate-reducing conditions or sulphur
The mass fraction of hydrochlorate lignin is 30-40%.
4. a kind of environmentally friendly furniture material production technology according to claim 1, it is characterised in that：The thermoplastic film is
One kind in polypropylene, polyethylene.
5. a kind of environmentally friendly furniture material production technology according to claim 1, it is characterised in that：Per 100kg wood fibres
Or wood particle uses the lignin urea-formaldehyde resin adhesive 3-6kg.
6. a kind of environmentally friendly furniture material production technology according to claim 1, it is characterised in that：First time hot pressing temperature is
100-170℃。
7. a kind of environmentally friendly furniture material production technology according to claim 1, it is characterised in that：Second of hot pressing temperature be
50-70℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810065165.5A CN108312284A (en) | 2018-01-23 | 2018-01-23 | A kind of environmental protection furniture material production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810065165.5A CN108312284A (en) | 2018-01-23 | 2018-01-23 | A kind of environmental protection furniture material production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108312284A true CN108312284A (en) | 2018-07-24 |
Family
ID=62888136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810065165.5A Pending CN108312284A (en) | 2018-01-23 | 2018-01-23 | A kind of environmental protection furniture material production technology |
Country Status (1)
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101108498A (en) * | 2007-08-20 | 2008-01-23 | 魏根成 | Technique of reducing aldehyde of artificial board |
| CN201065614Y (en) * | 2007-05-18 | 2008-05-28 | 中国林业科学研究院木材工业研究所 | Formaldehyde-free plywood for decoration |
| CN101774200A (en) * | 2010-01-11 | 2010-07-14 | 湖南康派木业有限公司 | Manufacturing method of low-formaldehyde release-type laminated flooring and facing artificial boards |
| CN102241826A (en) * | 2011-05-09 | 2011-11-16 | 北京化工大学 | Modified lignin and urea-formaldehyde resin synthesized from same and preparation methods of modified lignin and urea-formaldehyde resin |
| CN203945443U (en) * | 2014-01-27 | 2014-11-19 | 上海杰事杰新材料(集团)股份有限公司 | A kind of wood-plastic clad plate |
| CN105415477A (en) * | 2015-11-27 | 2016-03-23 | 南京林业大学 | Environment-friendly plate for custom furniture production and manufacturing method of environment-friendly plate |
| CN106333530A (en) * | 2016-08-29 | 2017-01-18 | 广西横县正林木业有限公司 | Method for producing cabinet board by adopting flame-retardant composite urea resin |
| CN106985037A (en) * | 2017-05-10 | 2017-07-28 | 南京林业大学 | A kind of formaldehydeless coating-free veneer facing decorative board of dry glue and its production technology |
-
2018
- 2018-01-23 CN CN201810065165.5A patent/CN108312284A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201065614Y (en) * | 2007-05-18 | 2008-05-28 | 中国林业科学研究院木材工业研究所 | Formaldehyde-free plywood for decoration |
| CN101108498A (en) * | 2007-08-20 | 2008-01-23 | 魏根成 | Technique of reducing aldehyde of artificial board |
| CN101774200A (en) * | 2010-01-11 | 2010-07-14 | 湖南康派木业有限公司 | Manufacturing method of low-formaldehyde release-type laminated flooring and facing artificial boards |
| CN102241826A (en) * | 2011-05-09 | 2011-11-16 | 北京化工大学 | Modified lignin and urea-formaldehyde resin synthesized from same and preparation methods of modified lignin and urea-formaldehyde resin |
| CN203945443U (en) * | 2014-01-27 | 2014-11-19 | 上海杰事杰新材料(集团)股份有限公司 | A kind of wood-plastic clad plate |
| CN105415477A (en) * | 2015-11-27 | 2016-03-23 | 南京林业大学 | Environment-friendly plate for custom furniture production and manufacturing method of environment-friendly plate |
| CN106333530A (en) * | 2016-08-29 | 2017-01-18 | 广西横县正林木业有限公司 | Method for producing cabinet board by adopting flame-retardant composite urea resin |
| CN106985037A (en) * | 2017-05-10 | 2017-07-28 | 南京林业大学 | A kind of formaldehydeless coating-free veneer facing decorative board of dry glue and its production technology |
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Application publication date: 20180724 |
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