CN102259369A - Method for producing MDF (medium density fiberboard) with vermiculite flame retardancy - Google Patents
Method for producing MDF (medium density fiberboard) with vermiculite flame retardancy Download PDFInfo
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- CN102259369A CN102259369A CN2011101851712A CN201110185171A CN102259369A CN 102259369 A CN102259369 A CN 102259369A CN 2011101851712 A CN2011101851712 A CN 2011101851712A CN 201110185171 A CN201110185171 A CN 201110185171A CN 102259369 A CN102259369 A CN 102259369A
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- vermiculite
- lauxite
- curing agent
- wood
- fibred
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Abstract
The invention discloses a method for producing an MDF (medium density fiberboard) with vermiculite flame retardancy. The method comprises the processing steps of raw material selection, preparation of a surface layer, a bottom layer and a core layer, paving, prepressing, hot-pressing, cooling, stacking, cropping, carrying out tests on physical mechanics and combustibility and the like. The method has the advantages that sizing is carried out on the surface layer material, the bottom layer material and the core layer material independently, and the addition volume of vermiculite is based on the absolute dry fiber by weigh percent. The MDF produced by the method in the invention has the mechanical property superior to that of the MDF produced from a fire retardant and wood fibers through mixed sizing. The combustibility test result shows that vermiculite accounting for 30-70wt% of the absolute dry fiber is added in the wood fibers, thus reducing the heat release rate, heat release total amount, smoke release total amount, smoke yield and mass loss rate of the products, and delaying the ignition time. Tests show that the flame retardancy of products is increased along with the increasing of the addition volume of the vermiculite. According to the invention, flammability and environmental protection problems are sovled, the cost is low, and the practical significance and popularization value can be promoted simultaneously.
Description
Technical field
The present invention relates to be a kind of be the production method of the vermiculite burning-resistant medium density fibreboard of fire retardant with inorganic vermiculite, belong to Wood-based Panel Production manufacturing technology field.
Background technology
Medium density fibre board (MDF) is a kind of wood-base fibre and particle panel material material of top grade, is widely used in furniture manufacturing, interior decoration, car and boat manufacturing and the manufacturing of sound equipment musical instrument etc., but it belongs to combustible material, very easily causes fire, has limited its scope of application.The most frequently used inorganic combustion inhibitor of fire-retardation artificial board is the compound that contains P, N, B, Al and halogen etc. at present, being broadly divided into ammonium phosphate salt is main phosphorus-nitrogen system, based on the boron of boride system, the halogen system of halogen contained compound and contain metal oxide or hydroxide such as Mg, Al.The flame treatment of medium density fibre board (MDF) generally is divided in production board processing and the production process and handles two kinds.Production board is handled and is divided into dipping and external coating veneer again, it is fiber treatment that production process is handled a kind of, be exactly in process of production fire retardant to be mixed with fiber separately or with adhesive together, another kind is before the fibre mat moulding, and equipment is mated formation a certain amount of fire retardant in slab with mating formation.Vermiculite has the fusing point height, is heated easily to expand, and the characteristics that matter is crisp and soft have good heat insulation, sound insulation, prevent fires, help performance such as filter.Vermiculite is nonpoisonous and tasteless simultaneously, has good environmental protection characteristic again.The fire retardant that adopts inorganic vermiculite to do medium density fibre board (MDF) can solve its inflammable problem, can solve its environmental issue again, saves cost, has great Practical significance and promotional value.The practical technology that China Patent No. ZL200720042049.9 once disclosed a kind of " cotton stalk burning-resistant medium density fibreboard ", the three-decker burning-resistant medium density fibreboard that this composite plate primary raw material is made according to certain prescription by foaming vermiculite, adhesive, cotton stalk fiber (top layer foaming vermiculite, the sandwich layer cotton stalk fiber), burning-resistant medium density fibreboard according to this prescription making, its major defect is the not applying glue but directly mat formation of foaming vermiculite, and the interpolation of vermiculite can influence the physical and mechanical property of slab.Lucky application " a kind of burning-resistant medium density fibreboard and the manufacture method thereof " patent of invention once of sending out, this composite plate primary raw material comprises vermiculite granule, adhesive, wood-fibred, also can add vermiculite power in the vermiculite granule, being characterized as to add after the fire proofing applying glue to mix in the wood-fibred before wood-fibred is mated formation of its product structure stirred.
Summary of the invention
The present invention is to provide a kind of is the production method of the vermiculite burning-resistant medium density fibreboard of fire retardant with inorganic vermiculite, and its purpose is intended to overcome the above-mentioned defective of existing in prior technology.The burning-resistant medium density fibreboard of being produced, fire resistance is reliable, and physical and mechanical property is up to state standards.
Technical solution of the present invention: comprise following processing step,
One, choose raw material, vermiculite, wood-fibred, Lauxite are as adhesive, and wherein vermiculite is through pulverizing and passing through 60 mesh sieve branches, and the wood-fibred moisture content is less than 8%, and the default density of slab is 0.75-0.85g/cm
3
Two, top layer, bottom,
1) addition of vermiculite is the heavy 30-70% of bone dry fiber; Lauxite is the heavy 6-9% of bone dry fiber to the resin added of vermiculite, and adds curing agent NH in Lauxite
4Cl, curing agent NH
4The Cl amount is 1% of a Lauxite weight;
2) with Lauxite and curing agent NH
4Cl mixes stirring, after the mixing and stirring with the vermiculite mixing and stirring;
3) with Lauxite, curing agent NH
4The composite material of Cl, vermiculite is divided into two, respectively as top layer, primer;
Three, sandwich layer comprises wood-fibred, Lauxite, curing agent NH
4Cl, wherein Lauxite is the heavy 8-12% of bone dry fiber to the resin added of wood-fibred, adds curing agent NH in the Lauxite aldehyde
4Cl, curing agent NH
4The amount of Cl is 1% of a Lauxite weight;
Four, mat formation, the three-decker template is mated formation on bottom, sandwich layer, top layer successively, carries out precompressed then;
Five, hot pressing pushes the three-decker template after the precompressed and is hot pressed into plate in the hot press, and wherein hot pressing parameters is respectively: hot pressing pressure 3-3.5MPa, temperature 160-180 ℃, hot pressing time 20-30s/mm;
Six, normal temperature cooling was down stacked 24 hours, and the test of physical mechanics and combustibility is carried out in cutting edge.
Beneficial effect of the present invention: because top layer, bottom are separated applying glue with the core material employing, the vermiculite addition is according to the heavy percentage of bone dry fiber, and the medium density fibre board (MDF) mechanical property that the present invention makes is better than the existing mechanical property that adopts the medium density fibre board (MDF) that fire retardant and wood-fibred mixing application make.Show through the combustibility test result, owing in wood-fibred, added the vermiculite that accounts for the heavy 30-70% of bone dry fiber, thereby the rate of heat release, the heat that greatly reduce goods discharge total amount, cigarette discharges total amount, cigarette productive rate and mass loss rate, also postpone ignition time significantly simultaneously.Evidence, along with the increase of vermiculite addition, the product fire resistance improves constantly.The fire retardant that adopts inorganic vermiculite to do medium density fibre board (MDF) can solve its inflammable problem, can solve its environmental issue again, saves cost, has great Practical significance and promotional value.The every performance indications of product are up to state standards.
Description of drawings
Fig. 1 is a vermiculite burning-resistant medium density fibreboard process chart.
The specific embodiment
The vermiculite burning-resistant medium density fibreboard is a three-decker, and the material of top layer, bottom is a vermiculite power, and the material of sandwich layer is a wood-fibred.
Embodiment 1
One, choose raw material, vermiculite, wood-fibred, Lauxite are as adhesive, and wherein vermiculite is through pulverizing and passing through 60 mesh sieve branches, and the wood-fibred moisture content is less than 8%, and the default density of slab is 0.75g/cm
3;
Two, top layer, bottom,
1) addition of getting vermiculite be bone dry fiber heavy 30%; Lauxite to the resin added of vermiculite be bone dry fiber heavy 6%, and in Lauxite, add curing agent NH
4Cl, curing agent NH
4The Cl amount is 1% of a Lauxite weight;
2) with Lauxite and curing agent NH
4Cl mixes stirring, after the mixing and stirring with the vermiculite mixing and stirring;
3) with Lauxite, curing agent NH
4The composite material of Cl, vermiculite is divided into two, respectively as top layer, primer;
Three, sandwich layer comprises wood-fibred, Lauxite, curing agent NH
4Cl, wherein Lauxite to the resin added of wood-fibred be bone dry fiber heavy 8%, add curing agent NH in the Lauxite aldehyde
4Cl, curing agent NH
4The amount of Cl is 1% of a Lauxite weight;
Four, mat formation, mat formation into three-decker successively, carry out precompressed then by bottom, sandwich layer, top layer;
Five, hot pressing is put into hot press with the three-decker after the precompressed and is hot pressed into plate, and wherein hot pressing parameters is respectively: hot pressing pressure 3MPa, 160 ℃ of temperature, hot pressing time 20s/mm;
Six, normal temperature cooling is down stacked, and the test of physical mechanics and combustibility is carried out in cutting edge.
Embodiment 2
One, choose raw material, vermiculite, wood-fibred, Lauxite are as adhesive, and wherein vermiculite is through pulverizing and passing through 60 mesh sieve branches, and the wood-fibred moisture content is less than 8%, and the default density of slab is 0.85g/cm
3
Two, top layer, bottom,
1) addition of getting vermiculite be bone dry fiber heavy 70%; Lauxite to the resin added of vermiculite be bone dry fiber heavy 9%, and in Lauxite, add curing agent NH
4Cl, curing agent NH
4The Cl amount is 1% of a Lauxite weight;
2) with Lauxite and curing agent NH
4Cl mixes stirring, after the mixing and stirring with the vermiculite mixing and stirring;
3) with Lauxite, curing agent NH
4The composite material of Cl, vermiculite is divided into two, respectively as top layer, primer;
Three, sandwich layer comprises wood-fibred, Lauxite, curing agent NH
4Cl, wherein Lauxite to the resin added of wood-fibred be bone dry fiber heavy 12%, add curing agent NH in the Lauxite aldehyde
4Cl, curing agent NH
4The amount of Cl is 1% of a Lauxite weight;
Four, mat formation, mat formation into three-decker successively, carry out precompressed then by bottom, sandwich layer, top layer;
Five, hot pressing is put into hot press with the three-decker after the precompressed and is hot pressed into plate, and wherein hot pressing parameters is respectively: hot pressing pressure 3.5MPa, 180 ℃ of temperature, hot pressing time 30s/mm;
Six, normal temperature cooling is down stacked, and the test of physical mechanics and combustibility is carried out in cutting edge.
Vermiculite burning-resistant medium density fibreboard to the said method manufacturing, carry out performance test according to the existing medium density fibre board (MDF) standard GB/T11718-1999 of China, the project of test has MOR (MOR), elastic modelling quantity (MOE) and 24h thickness swelling rate (24h TS), all can meet or exceed the requirement of standard GB 18103-2000.The combustibility test is carried out on FTT taper calorimeter (Cone Calorimeter) with reference to ISO 5660-1:2002 method of testing.The test performance index comprises heat release, cigarette release and mass change etc., test result shows, in wood-fibred, add rate of heat release, heat release total amount, cigarette release total amount, cigarette productive rate and mass loss rate that a certain proportion of expanded vermiculite can reduce goods greatly, and postpone ignition time significantly.Along with the increase of expanded vermiculite addition, the product fire resistance improves constantly.
Claims (1)
1. the production method of vermiculite burning-resistant medium density fibreboard is characterized in that this method comprises following processing step,
One, choose raw material, vermiculite, wood-fibred, Lauxite are as adhesive, and wherein vermiculite is through pulverizing and passing through 60 mesh sieve branches, and the wood-fibred moisture content is less than 8%, and the default density of slab is 0.75-0.85g/cm
3
Two, top layer, bottom,
1) addition of getting vermiculite is the heavy 30-70% of bone dry fiber; Lauxite is the heavy 6-9% of bone dry fiber to the resin added of vermiculite, and adds curing agent NH in Lauxite
4Cl, curing agent NH
4The Cl amount is 1% of a Lauxite weight;
2) with Lauxite and curing agent NH
4Cl mixes stirring, after the mixing and stirring with the vermiculite mixing and stirring;
3) with Lauxite, curing agent NH
4The composite material of Cl, vermiculite is divided into two, respectively as top layer, primer;
Three, sandwich layer comprises wood-fibred, Lauxite, curing agent NH
4Cl, wherein Lauxite is the heavy 8-12% of bone dry fiber to the resin added of wood-fibred, adds curing agent NH in the Lauxite aldehyde
4Cl, curing agent NH
4The amount of Cl is 1% of a Lauxite weight;
Four, mat formation, the three-decker template is mated formation on bottom, sandwich layer, top layer successively, carries out precompressed then;
Five, hot pressing pushes the three-decker template after the precompressed and is hot pressed into plate in the hot press, and wherein hot pressing parameters is respectively: hot pressing pressure 3-3.5MPa, temperature 160-180 ℃, hot pressing time 20-30s/mm;
Six, normal temperature cooling was down stacked 24 hours, and the test of physical mechanics and combustibility is carried out in cutting edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101851712A CN102259369A (en) | 2011-07-04 | 2011-07-04 | Method for producing MDF (medium density fiberboard) with vermiculite flame retardancy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101851712A CN102259369A (en) | 2011-07-04 | 2011-07-04 | Method for producing MDF (medium density fiberboard) with vermiculite flame retardancy |
Publications (1)
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|---|---|
| CN102259369A true CN102259369A (en) | 2011-11-30 |
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|---|---|---|---|
| CN2011101851712A Pending CN102259369A (en) | 2011-07-04 | 2011-07-04 | Method for producing MDF (medium density fiberboard) with vermiculite flame retardancy |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794810A (en) * | 2012-07-24 | 2012-11-28 | 梁绍勇 | Method for manufacturing bamboo fiber plywood |
| CN104030725A (en) * | 2014-05-30 | 2014-09-10 | 石家庄市金利矿业有限公司 | Vermiculite production processing technology |
| CN105563601A (en) * | 2016-03-07 | 2016-05-11 | 德华兔宝宝装饰新材股份有限公司 | Medium-density fiberboard |
| CN106113214A (en) * | 2016-06-28 | 2016-11-16 | 安阳华森纸业有限责任公司 | The preparation method of compound flame retardant fibre board |
| CN108748599A (en) * | 2018-08-09 | 2018-11-06 | 福建省永安林业（集团）股份有限公司永安人造板厂 | A kind of laying device and method for paving of mountain flour fiber composite plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067639A (en) * | 1991-06-10 | 1993-01-06 | 山东建筑材料工业学院 | Fire-retarding compound board made of plant fabric and raw-vermiculite |
| US6271156B1 (en) * | 1998-09-22 | 2001-08-07 | Lydall, Inc. | Fire-resistant core for a combustible fire-rated panel |
| JP2006175832A (en) * | 2004-12-24 | 2006-07-06 | Mitsubishi Shoji Construction Materials Corp | Composite material |
| CN100396459C (en) * | 2006-10-27 | 2008-06-25 | 吉发 | Fire-resistant-chipboard and its manufacturing method |
| CN201132353Y (en) * | 2007-12-05 | 2008-10-15 | 广东威华股份有限公司 | Fire retardant medium-density fiberboard from cotton stalks |
-
2011
- 2011-07-04 CN CN2011101851712A patent/CN102259369A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067639A (en) * | 1991-06-10 | 1993-01-06 | 山东建筑材料工业学院 | Fire-retarding compound board made of plant fabric and raw-vermiculite |
| US6271156B1 (en) * | 1998-09-22 | 2001-08-07 | Lydall, Inc. | Fire-resistant core for a combustible fire-rated panel |
| JP2006175832A (en) * | 2004-12-24 | 2006-07-06 | Mitsubishi Shoji Construction Materials Corp | Composite material |
| CN100396459C (en) * | 2006-10-27 | 2008-06-25 | 吉发 | Fire-resistant-chipboard and its manufacturing method |
| CN201132353Y (en) * | 2007-12-05 | 2008-10-15 | 广东威华股份有限公司 | Fire retardant medium-density fiberboard from cotton stalks |
Non-Patent Citations (1)
| Title |
|---|
| 梅长彤等: "蛭石阻燃刨花板的研究", 《中国人造板》, no. 12, 31 December 2009 (2009-12-31) * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794810A (en) * | 2012-07-24 | 2012-11-28 | 梁绍勇 | Method for manufacturing bamboo fiber plywood |
| CN102794810B (en) * | 2012-07-24 | 2016-01-20 | 梁绍勇 | A kind of preparation method of bamboo fiber composite board |
| CN104030725A (en) * | 2014-05-30 | 2014-09-10 | 石家庄市金利矿业有限公司 | Vermiculite production processing technology |
| CN104030725B (en) * | 2014-05-30 | 2015-10-14 | 石家庄市金利矿业有限公司 | A kind of vermiculite production and processing technology |
| CN105563601A (en) * | 2016-03-07 | 2016-05-11 | 德华兔宝宝装饰新材股份有限公司 | Medium-density fiberboard |
| CN106113214A (en) * | 2016-06-28 | 2016-11-16 | 安阳华森纸业有限责任公司 | The preparation method of compound flame retardant fibre board |
| CN106113214B (en) * | 2016-06-28 | 2018-06-26 | 安阳华森纸业有限责任公司 | The preparation method of compound flame retardant fibre board |
| CN108748599A (en) * | 2018-08-09 | 2018-11-06 | 福建省永安林业（集团）股份有限公司永安人造板厂 | A kind of laying device and method for paving of mountain flour fiber composite plate |
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Application publication date: 20111130 |