CN104875267B - Preparation method of medium-density fiber board for door plate of closet door - Google Patents
Preparation method of medium-density fiber board for door plate of closet door Download PDFInfo
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- CN104875267B CN104875267B CN201510258926.5A CN201510258926A CN104875267B CN 104875267 B CN104875267 B CN 104875267B CN 201510258926 A CN201510258926 A CN 201510258926A CN 104875267 B CN104875267 B CN 104875267B
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- Prior art keywords
- urea
- adhesive
- reactant liquor
- preparation
- fiber
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Classifications
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- 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
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from 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
- B27N3/10—Moulding of mats
- B27N3/12—Moulding of mats from fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08G12/34—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds and acyclic or carbocyclic compounds
- C08G12/36—Ureas; Thioureas
- C08G12/38—Ureas; Thioureas and melamines
-
- 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
- C09J161/30—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic and acyclic or carbocyclic compounds
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention provides a preparation method of a medium-density fiber board for a door plate of a closet door. The method comprises the steps of preparing an adhesive; preparing fibers; gluing the fibers and drying; paving; thermally pressing; postprocessing; when in thermal processing, the process parameters are that the ratio of the fibers to the adhesive in parts by weight is 10: (1.2-1.3); the thermal pressing temperature is 230 to 240 DEG C; a press is closed for 4 to 8 seconds; the pressure is 2.6 to 2.9MPa; the thermal pressing coefficients are 8 to 11s/mm. The medium-density fiber board prepared by the method has the advantages of being smooth to route, free of painting, high in size stability, and small in deformation.
Description
Technical field
Present invention relates particularly to a kind of preparation method of cabinet board medium density fibre board (MDF).
Background technology
As people's living standard is improved constantly, the popular understanding to house decoration has also more gone up a level, overall fixed
Clothing cabinet increasingly becomes requisite important component part in Modern Family's finishing.Overall Customized wardrobe is ordered due to measuring body
Do, and the features such as environmental protection, fashion, specialty, will be doomed to become the consumption hot spot of family's wardrobe in a few years from now on.
Also known as " wardrobe personality board ", its Jing is overlayed, is engraved milling moulding, glue spraying cabinet board, and is covered after PVC, into plastic uptake
Machine vacuum forming, so as to Customized wardrobe door-plate is obtained.Because of its one-shot forming, short construction period, environmentally friendly non-exhaust emission, Neng Goubang
Help vast furniture enterprise to realize scale, industrialized production, obtained more and more enterprises and selected and favor.
The content of the invention
The technical problem to be solved in the present invention, is to provide a kind of preparation method of cabinet board medium density fibre board (MDF).
What the present invention was realized in：A kind of preparation method of cabinet board medium density fibre board (MDF), comprises the following steps：
Prepared by adhesive, prepared by fiber, applying glue to fibers is dried, mats formation, hot pressing and post processing；In the heat-press step, technological parameter
It is as follows：
The weight part ratio of fiber and adhesive is fiber：Adhesive=10: 1.2～1.3；Hot pressing temperature is 230 DEG C～240
DEG C, press closing time is 4～8s, and pressure is 2.6～2.9MPa, and thermal ventilation is 8～11s/mm.
Further, in the adhesive preparation process, the mol ratio of formaldehyde and urea is formaldehyde：Urea=1：1.1～
1.2。
Further, the adhesive preparation process, its concrete operation method is as follows：
Whole formaldehyde are added, reactant liquor pH=8.0～8.5 are adjusted, addition accounts for the urea of urea total amount 47%～51%, and adds
Enter to account for the additive of reactant liquor gross mass 2%～3%, be warmed up to 80～85 DEG C, adjust reactant liquor pH=5.5～6.0；It is subsequently adding
Accounting for the urea of urea total amount 23～26% carries out secondary polycondensation, adjusts pH=8.5～9.0 of reactant liquor；It is eventually adding and accounts for reactant liquor
The melamine of gross mass 1%～3% and remaining urea, the cooling discharge after 50～55 DEG C of insulation reactions 0.5h.
Further, the additive is phenylenediamine.
It is an advantage of the current invention that：The performance indications of the medium density fibre board (MDF) of production, far above medium density fibre board (MDF) country
The performance requirement index of the furniture type medium density fibre board (MDF) used under drying regime in standard (GB/T 11718-2009), its tool
Engrave milling to smooth, exempt from paint, good stability of the dimension, the little advantage of deflection.
Specific embodiment
A kind of preparation method of cabinet board medium density fibre board (MDF), comprises the following steps：Prepared by adhesive, fiber system
Standby, applying glue to fibers is dried, mats formation, hot pressing and post processing；In the heat-press step, technological parameter is as follows：
The weight part ratio of fiber and adhesive is fiber：Adhesive=10: 1.2～1.3；Hot pressing temperature is 230 DEG C～240
DEG C, press closing time be 4～8s, pressure be 2.6～2.9MPa, thermal ventilation be 8～11s/mm, i.e., every millimeter Midst density fibre
Dimension plate hot pressing time is 8～11s.
In the adhesive preparation process, the mol ratio of formaldehyde and urea is formaldehyde：Urea=1：1.1～1.2, its is concrete
Method of operating is as follows：
Whole formaldehyde are added, reactant liquor pH=8.0～8.5 are adjusted, addition accounts for the urea of urea total amount 47%～51%, and adds
Enter to account for the additive (additive is phenylenediamine) of reactant liquor gross mass 2%～3%, be warmed up to 80～85 DEG C, adjust reactant liquor
PH=5.5～6.0；Be subsequently adding and account for the urea of urea total amount 23～26% and carry out secondary polycondensation, adjust the pH=8.5 of reactant liquor～
9.0；It is eventually adding and accounts for the melamine of reactant liquor gross mass 1%～3% and remaining urea (accounts for urea total amount 24～27%
Urea), the cooling discharge after 50～55 DEG C of insulation reactions 0.5h.The adhesive of present invention production is more tolerant of high temperature, in high temperature
Under be difficult premature cure, while reduce adhesive hardening time, improve bonding capacity；Adhesive viscosity is less than equal material proportion
Urea-formaldehyde-modified glue, have more preferable dispersiveness during applying glue, bonding capacity more preferably, improves resistance to water, also makes the dimensionally stable of product
Property is more preferable.
Embodiment 1
A kind of preparation method of cabinet board medium density fibre board (MDF), comprises the following steps：Prepared by adhesive, fiber system
Standby, applying glue to fibers is dried, mats formation, hot pressing and post processing；In the heat-press step, technological parameter is as follows：
The weight part ratio of fiber and adhesive is fiber：Adhesive=10: 1.2；Hot pressing temperature is 234 DEG C, press closure
Time is 5.5s, and pressure is 2.6MPa, and thermal ventilation is 9.66 seconds/millimeter.
After testing, the cabinet board medium density fibre board (MDF) density prepared by embodiment 1 be 620 kilograms/cubic metre, its property
Energy index is as follows：
Note：
IL is temperature (20 ± 2) DEG C, relative humidity from 65% rise to 85% when the length growth rate that causes.
DL is temperature (20 ± 2) DEG C, relative humidity from 65% be reduced to 30% when the length that causes receive place rate.
IT is temperature (20 ± 2) DEG C, relative humidity from 65% rise to 85% when the thickness growth rate that causes.
DT is temperature (20 ± 2) DEG C, relative humidity from 65% be reduced to 30% when the thickness contraction rate that causes.
Embodiment 2
This part difference from Example 1 is：
The weight part ratio of fiber and adhesive is fiber：Adhesive=10: 1.3, hot pressing temperature is 230 DEG C, press closure
Time is 4.3s, and pressure is 2.9MPa, and thermal ventilation is 8.1 seconds/millimeter.
Embodiment 3
This part difference from Example 1 is：
The weight part ratio of fiber and adhesive is fiber：Adhesive=10: 1.3, hot pressing temperature is 240 DEG C, press closure
Time is 7.8s, and pressure is 2.6MPa, and thermal ventilation is 10.5 seconds/millimeter.
The density of present invention production is 620～650 kilograms/cubic metre, and thickness is close during the cabinet board of 15～22mm is used
Degree fiberboard (also known as wardrobe personality board), its performance indications are far above medium density fibre board (MDF) national standard (GB/T 11718-
2009) the performance requirement index of the furniture type medium density fibre board (MDF) used under drying regime in, it is adaptable to which cabinet board engraves milling
Moulding processing and the production requirement of plastic uptake technique, smooth with milling is engraved, and exempt from paint, good stability of the dimension, the features such as deflection is little.
Claims (2)
1. a kind of preparation method of cabinet board medium density fibre board (MDF), comprises the following steps：Prepared by adhesive, prepared by fiber,
Applying glue to fibers is dried, mats formation, hot pressing and post processing；It is characterized in that：
The adhesive preparation process, its concrete operation method is as follows：
Whole formaldehyde are added, adjusts reactant liquor pH=8.0～8.5, addition to account for the urea of urea total amount 47%～51%, and addition is accounted for
The additive of reactant liquor gross mass 2%～3%, is warmed up to 80～85 DEG C, adjusts reactant liquor pH=5.5～6.0, the additive to be
Phenylenediamine；It is subsequently adding and accounts for the urea of urea total amount 23～26% and carry out secondary polycondensation, adjusts pH=8.5～9.0 of reactant liquor；Most
Add afterwards and account for the melamine of reactant liquor gross mass 1%～3% and remaining urea, lower the temperature after 50～55 DEG C of insulation reactions 0.5h
Discharging；
In the heat-press step, technological parameter is as follows：
The weight part ratio of fiber and adhesive is fiber：Adhesive=10: 1.2～1.3；Hot pressing temperature is 230 DEG C～240 DEG C,
Press closing time is 4～8s, and pressure is 2.6～2.9MPa, and thermal ventilation is 8～11s/mm.
2. the preparation method of cabinet board medium density fibre board (MDF) as claimed in claim 1, it is characterised in that：The adhesive
In preparation process, the mol ratio of formaldehyde and urea is formaldehyde：Urea=1：1.1～1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510258926.5A CN104875267B (en) | 2015-05-20 | 2015-05-20 | Preparation method of medium-density fiber board for door plate of closet door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510258926.5A CN104875267B (en) | 2015-05-20 | 2015-05-20 | Preparation method of medium-density fiber board for door plate of closet door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104875267A CN104875267A (en) | 2015-09-02 |
| CN104875267B true CN104875267B (en) | 2017-05-10 |
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ID=53943068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510258926.5A Active CN104875267B (en) | 2015-05-20 | 2015-05-20 | Preparation method of medium-density fiber board for door plate of closet door |
Country Status (1)
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110271073A (en) * | 2019-05-13 | 2019-09-24 | 阜阳大可新材料股份有限公司 | A kind of preparation method of 3D molded fiber plate |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8530781D0 (en) * | 1985-12-13 | 1986-01-22 | Evode Ltd | Manufacture of boards |
| JP3359374B2 (en) * | 1993-04-20 | 2002-12-24 | 永大産業株式会社 | Manufacturing method of composite board |
| US5942058A (en) * | 1995-03-10 | 1999-08-24 | Archer Daniels Midland Company | Co-adhesive system for bonding wood, fibers, or agriculture based composite materials |
| CN1425541A (en) * | 2001-12-14 | 2003-06-25 | 株式会社瑞可 | Medium density flame-retardant fibrous plate and its producing method |
| CN1403255A (en) * | 2002-10-22 | 2003-03-19 | 四川国栋建设股份有限公司 | Mid and high density wheat straw and rice straw fiber plate and its production process |
| CN100588520C (en) * | 2008-05-15 | 2010-02-10 | 东营正和木业有限公司 | Environment-friendly type middle and higher density Fibreboard Production technology |
| CN101863066A (en) * | 2009-10-16 | 2010-10-20 | 东营正和木业有限公司 | Production process for flame-retardant medium and high-density board |
| CN101863062B (en) * | 2009-10-16 | 2013-05-01 | 东营正和木业有限公司 | Processing method of high-strength E0 grade middle-high density plate |
| CN102152372B (en) * | 2011-01-18 | 2013-02-06 | 福建省永安林业(集团)股份有限公司 | Preparation method of low-density fiberboards |
| CN102873736A (en) * | 2012-10-15 | 2013-01-16 | 常州卫星装饰材料有限公司 | Low-pressure hot pressing method for reducing formaldehyde releasing amount of shaving board |
| CN104290169B (en) * | 2014-09-11 | 2017-04-05 | 大亚人造板集团有限公司 | A kind of production technology of zero formaldehyde density fiber board |
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- 2015-05-20 CN CN201510258926.5A patent/CN104875267B/en active Active
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