CN110405899A - Fire-retardant oriented structure chipboard and its preparation process - Google Patents
Fire-retardant oriented structure chipboard and its preparation process Download PDFInfo
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- CN110405899A CN110405899A CN201910573811.3A CN201910573811A CN110405899A CN 110405899 A CN110405899 A CN 110405899A CN 201910573811 A CN201910573811 A CN 201910573811A CN 110405899 A CN110405899 A CN 110405899A
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- fire
- retardant
- oriented structure
- melamine phosphate
- flame retardant
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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
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
-
- 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
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
- C09J161/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C09J161/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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)
- Dry Formation Of Fiberboard And The Like (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a kind of fire-retardant oriented structure chipboard and its preparation process, which includes sandwich layer and the surface layer in sandwich layer two sides, and the fire retardant in surface layer is the compound of phosphonized chitosan and melamine phosphate borate；Fire retardant in sandwich layer is melamine phosphate borate.Melamine phosphate borate hygroscopicity is low, leach resistance is strong, is able to carry out charring layer at high temperature, therefore have stronger flame retardant property and longer fire-retardant service life；And also containing phosphonized chitosan in the fire retardant on surface layer, the hydroxyl and amino on phosphonized chitosan surface can be reacted with formaldehyde, reduce the free formaldehyde release of oriented structure chipboard, realize the purpose of purifying formaldehyde, keep particieboard more environmentally-friendly；And the hygroscopicity of melamine phosphate borate can also be further decreased, further increase the flame retardant property of oriented structure chipboard.
Description
Technical field
The invention belongs to particieboard preparation technical fields, and in particular to a kind of fire-retardant oriented structure chipboard and its preparation work
Skill.
Background technique
Oriented structure chipboard (Oriented Strand Board, 0SB) is also known as oriented wood chipboard or Europe deals, is one
Kind passes through special equipment and processes long flaking (the generally 40-100mm long, 5- of growth using small dimension wood, thinnings, wooden core as raw material
20mm wide, 0.3-0.7mm are thick), it is tied through a kind of orientation made of the techniques such as de-oiling, drying, sizing, orienting spreading, hot-forming
Structure plate.
In oriented structure chipboard, surface layer flaking is in longitudinal arrangement, and sandwich layer flaking is this criss-cross in transversely arranged
Arrangement recombinated wood grain structure, influence of the wood internal stress to processing is completely eliminated, so that oriented structure chipboard
With outstanding workability and moisture resistance.Due to being oriented structure inside OSB, non junction, seamless, slight crack are whole uniform
Property it is good, internal bond strength is high, so no matter center or edge all have common plate incomparable superpower hold nail energy
Power.
Since flaking arranges in certain direction, oriented structure chipboard have extremely strong anti-folding bending strength,
High dimensional stability, it is environmentally protective, stablize indeformable, is widely used in house construction, building template, indoor exterior
The industries such as decorations, timber manufacturing industry, packaging, floor base material, finished product Furniture manufacture, facilities for transport and communication.And in order to meet people couple
Demand of the building plate in safety also requires oriented structure chipboard to have certain flame retardant property at present, and hinders
Combustion performance needs to realize by addition fire proofing.
Such as application No. is the Chinese invention patent applications of CN 201710641853.7 to disclose a kind of fire-retardant oriented wood chipboard
Preparation method, which includes the following steps: that oriented wood chipboard is put into high-pressure impregnation tank by (1), then by high pressure
Impregnating autoclave is evacuated to 650-700mm mercury column, keeps 25-35min；(2) retardant solution is added to the high-pressure impregnation
In tank, it is then slowly forced into 1.0-1.2MPa, keeps 8-10min；(3) pressure in step (2) is released, discharge fire retardant is molten
Liquid；It takes out the oriented wood chipboard in impregnating autoclave and dries, by the oriented wood chipboard dried in 60-80 DEG C of drying, obtain fire-retardant orientation
Particieboard.
Fire retardant used in above-mentioned preparation method is nitrogen phosphorus series compound or borate family compound, however nitrogen phosphorus system
The inorganic types fire retardant hygroscopicity such as compound or borate family compound is strong, and leach resistance is poor, and it is obtained fire-retardant fixed to cause
It is unsuitable for being applied in the higher environment of relative humidity to particieboard, the fire-retardant service life is shorter.
Summary of the invention
Present invention purpose is to provide the fire-retardant oriented structure wood shavings that a kind of flame retardant property is stable, the fire-retardant service life is long
Plate.
For achieving the above object, the technical solution of the application is as follows:
A kind of fire-retardant oriented structure chipboard, the surface layer including sandwich layer and in sandwich layer two sides contain in sandwich layer and surface layer
There is fire retardant, in the surface layer, the fire retardant is the compounding of phosphonized chitosan and melamine phosphate borate
Object；In the sandwich layer, the fire retardant is melamine phosphate borate.
In fire-retardant oriented structure chipboard of the invention, melamine phosphate borate hygroscopicity is low, leach resistance
By force, it is able to carry out charring layer at high temperature, therefore there is stronger flame retardant property and longer fire-retardant service life；And surface layer is fire-retardant
Also contain phosphonized chitosan in agent, the hydroxyl and amino on phosphonized chitosan surface can be reacted with formaldehyde, reduce orientation knot
The free formaldehyde release of structure particieboard realizes the purpose of purifying formaldehyde, keeps particieboard more environmentally-friendly；And it can also further drop
The hygroscopicity of low-phosphorous acid melamine borate salt, further increases the flame retardant property of oriented structure chipboard.
Fire-retardant oriented structure chipboard of the invention using be layered it is fire-retardant by the way of carry out fire-retardant, i.e., phosphorus is added in the core
The compounding of phosphonized chitosan and melamine phosphate borate is added as fire retardant in sour melamine borate salt in surface layer
Object is as fire retardant；The utilization rate that fire retardant so can be improved, reduces the cost of manufacture of oriented structure chipboard.
In above-mentioned fire-retardant oriented structure chipboard, the phosphonized chitosan and melamine phosphate borate
Compound is prepared by following methods:
The phosphonized chitosan of phase homogenous quantities and melamine phosphate borate are slowly added in water, in 50-70 DEG C of perseverance
The lower quickly stirring 1-1.5h of temperature；
Wherein, the mass ratio of phosphonized chitosan and water is 1:10-20.
In above-mentioned fire-retardant oriented structure chipboard, the phosphonized chitosan is anti-through being esterified by chitosan and phosphoric acid
It should be made.The esterification is mixed with mass ratio 1:10 with the phosphate aqueous solution that mass fraction is 85% by chitosan, is stirred
After even, 120 DEG C are warming up to, reacts 2h at 120 DEG C.
The melamine phosphate borate described in above-mentioned fire-retardant oriented structure chipboard is obtained by following methods preparation
:
(a) phosphoric acid and ammonium dihydrogen phosphate are added to the water, melamine is added after reacting 15-25min at 45-55 DEG C
Amine, the reaction was continued 15-25min, cooled and filtered, washing, drying obtain melamine phosphate；
Wherein, the mass ratio of phosphoric acid, ammonium dihydrogen phosphate and water is (3-4): 1:(30-40), the matter of melamine and phosphoric acid
Amount is than being 1:1；
(b) melamine phosphate is added in the boric acid aqueous solution that concentration is 20%, reacts 2-3h at 70-90 DEG C,
After cooling, filtering and drying, melamine phosphate borate is obtained.
In above-mentioned fire-retardant oriented structure chipboard, according to the mass fraction, the surface layer includes: wood wool 70-80
Part, 5-15 parts of sawdust, A15-17 parts of flame retardant type adhesive；
The flame retardant type adhesive A by phosphonized chitosan and melamine phosphate borate compound and adhesive
It is mixed with mass ratio 1:5.Preferably, according to the mass fraction, the surface layer includes: 74 parts of wood wool, 10 parts of sawdust,
A16 parts of flame retardant type adhesive.
In above-mentioned fire-retardant oriented structure chipboard, according to the mass fraction, the sandwich layer includes: that force plane spends 100 parts,
18-22 parts of flame retardant type adhesive B；
The flame retardant type adhesive B is mixed by melamine phosphate borate and adhesive with mass ratio 1:5.
Preferably, according to the mass fraction, the sandwich layer includes: that force plane spends 100 parts, 20 parts of flame retardant type adhesive B.
The present invention also provides a kind of fire retardant, which is phosphonized chitosan and melamine phosphate borate
Compound.
The present invention also provides a kind of flame retardant type adhesive, which includes adhesive and is mixed in adhesive
Fire retardant, the fire retardant be phosphonized chitosan and melamine phosphate borate compound.
The preparation process of fire-retardant oriented structure chipboard of the present invention the following steps are included:
(1) preset mass fraction is pressed, force plane flower, flame retardant type adhesive B are stirred evenly, continuously adds and accounts for force plane flower matter
It measures the paraffin wax emulsions of 0.25-0.5% and accounts for the ammonium chloride of flame retardant type adhesive B mass 1%, stir evenly, obtain sandwich layer slurry
Material；
(2) preset mass fraction is pressed, wood wool, flame retardant type adhesive A are stirred evenly, continuously adds and accounts for force plane flower matter
It measures the paraffin wax emulsions of 0.5-0.65% and accounts for the ammonium chloride of flame retardant type adhesive A mass 1%, stir evenly, obtain surface layer slurry
Material；
(3) use continuous flat production technology, at 165-215 DEG C hot pressing 15-20min, obtain after maintenance 7 days it is described
Fire-retardant oriented structure chipboard.
Compared with prior art, the beneficial effects of the present invention are embodied in:
(1) in fire-retardant oriented structure chipboard of the invention, melamine phosphate borate hygroscopicity is low, resistance leachability
It can be able to carry out charring layer at high temperature, therefore there is stronger flame retardant property and longer fire-retardant service life by force；And the resistance on surface layer
Also contain phosphonized chitosan in combustion agent, the hydroxyl and amino on phosphonized chitosan surface can be reacted with formaldehyde, reduce orientation
The free formaldehyde release of structural particleboard realizes the purpose of purifying formaldehyde, keeps particieboard more environmentally-friendly；And it can also be further
The hygroscopicity for reducing melamine phosphate borate, further increases the flame retardant property of oriented structure chipboard.
(2) fire-retardant oriented structure chipboard of the invention carries out fire-retardant in such a way that layering is fire-retardant, i.e., adds in the core
Enter melamine phosphate borate as fire retardant, phosphonized chitosan and melamine phosphate borate are added in surface layer
Compound is as fire retardant；The utilization rate that fire retardant so can be improved, reduces the cost of manufacture of oriented structure chipboard.
Specific embodiment
Specific embodiment is set forth below, and further details of the technical solution of the present invention.
Embodiment 1
A kind of phosphoric acid activation chitosan/MPB compound flame retardant of the present embodiment, preparation method includes the following steps: (1) making
Standby phosphonized chitosan: 20g chitosan is added in the phosphate aqueous solution that 200g mass fraction is 85%, quickly after mixing evenly
120 DEG C are warming up to, 2h is reacted at 120 DEG C, generates phosphonized chitosan.
(2) melamine phosphate borate is prepared:
(a) 20g phosphoric acid and 6g ammonium dihydrogen phosphate are added in 200g water, after reacting 20min at 50 DEG C, 20g tri- is added
Poly cyanamid after reacting 2.5h, through supercooling, vacuum filtration, washing, drying, obtains white solid, is melamine phosphate
(MP)。
(b) 30g MP is added in 20% boric acid aqueous solution of 20mL, after reacting 2.5h at 80 DEG C, through supercooling, very
Empty pump filter, dry, acquisition melamine phosphate borate (MPB).
(3) 20g Chitosan Phosphate and 20g MPB are slowly added in 300g water, quickly stir 1h after 60 DEG C of constant temperature, obtains
Obtain the phosphoric acid activation chitosan/MPB compound flame retardant of the present embodiment.
Embodiment 2
A kind of flame retardant type adhesive of the present embodiment, preparation method include: the phosphoric acid activation shell for preparing 10g embodiment 1
Glycan/MPB compound flame retardant is added in 50g Lauxite, is stirred, and is uniformly mixed, is obtained the flame retardant type gluing of the present embodiment
Agent A.
And 10g MPB is added in 50g Lauxite, it stirs, is uniformly mixed, obtains the flame retardant type of the present embodiment
Adhesive B.
Embodiment 3
A kind of fire-retardant oriented structure chipboard of the present embodiment, including sandwich layer and set on the surface layer of sandwich layer two sides, this is fire-retardant fixed
To the preparation process of structural particleboard the following steps are included:
(1) by 100 parts of force planes flower (length of force plane flower between 60-120mm, wide 5-20mm, thick 0.2-0.8mm), 20g
Flame retardant type adhesive B, which is put into blender, to be stirred, continuously add account for force plane flower quality 0.35% paraffin wax emulsions with
And the ammonium chloride of flame retardant type adhesive B mass 1% is accounted for, it stirs evenly, obtains center stock；
(2) by 74 parts of wood wools (length of wood wool be less than 60mm, wide 5-20mm, thick 0.2-0.8mm), 10g sawdust,
16g flame retardant type adhesive A, which is put into blender, to be stirred, and the paraffin wax emulsions for accounting for force plane flower quality 0.6% are continuously added
And the ammonium chloride of flame retardant type adhesive A mass 1% is accounted for, it stirs evenly, obtains center stock；
(3) use continuous flat production technology, at 190 DEG C hot pressing 20min, maintenance 7 days after obtain the present embodiment resistance
It fires oriented structure chipboard (with a thickness of 18mm).
Embodiment 4
A kind of fire-retardant oriented structure chipboard of the present embodiment, including sandwich layer and set on the surface layer of sandwich layer two sides, this is fire-retardant fixed
To the preparation process of structural particleboard the following steps are included:
(1) by 100 parts of force planes flower (length of force plane flower between 60-120mm, wide 5-20mm, thick 0.2-0.8mm), 18g
Flame retardant type adhesive B, which is put into blender, to be stirred, continuously add account for force plane flower quality 0.25% paraffin wax emulsions with
And the ammonium chloride of flame retardant type adhesive B mass 1% is accounted for, it stirs evenly, obtains center stock；
(2) by 70 parts of wood wools (length of wood wool be less than 60mm, wide 5-20mm, thick 0.2-0.8mm), 15g sawdust,
15g flame retardant type adhesive A, which is put into blender, to be stirred, and the paraffin wax emulsions for accounting for force plane flower quality 0.5% are continuously added
And the ammonium chloride of flame retardant type adhesive A mass 1% is accounted for, it stirs evenly, obtains center stock；
(3) use continuous flat production technology, at 165 DEG C hot pressing 20min, maintenance 7 days after obtain the present embodiment resistance
It fires oriented structure chipboard (with a thickness of 18mm).
Embodiment 5
A kind of fire-retardant oriented structure chipboard of the present embodiment, including sandwich layer and set on the surface layer of sandwich layer two sides, this is fire-retardant fixed
To the preparation process of structural particleboard the following steps are included:
(1) by 100 parts of force planes flower (length of force plane flower between 60-120mm, wide 5-20mm, thick 0.2-0.8mm), 22g
Flame retardant type adhesive B, which is put into blender, to be stirred, continuously add account for force plane flower quality 0.5% paraffin wax emulsions and
The ammonium chloride for accounting for flame retardant type adhesive B mass 1%, stirs evenly, and obtains center stock；
(2) by 80 parts of wood wools (length of wood wool is less than 60mm, wide 5-20mm, thick 0.2-0.8mm), 5g sawdust, 17g
Flame retardant type adhesive A, which is put into blender, to be stirred, continuously add account for force plane flower quality 0.65% paraffin wax emulsions with
And the ammonium chloride of flame retardant type adhesive A mass 1% is accounted for, it stirs evenly, obtains center stock；
(3) use continuous flat production technology, at 215 DEG C hot pressing 15min, maintenance 7 days after obtain the present embodiment resistance
It fires oriented structure chipboard (with a thickness of 18mm).
Comparative example 1
A kind of fire-retardant oriented structure chipboard of the present embodiment, including sandwich layer and set on the surface layer of sandwich layer two sides, this is fire-retardant fixed
To the preparation process of structural particleboard the following steps are included:
(1) by 100 parts of force planes flower (length of force plane flower between 60-120mm, wide 5-20mm, thick 0.2-0.8mm), 20g
Flame retardant type adhesive B, which is put into blender, to be stirred, continuously add account for force plane flower quality 0.35% paraffin wax emulsions with
And the ammonium chloride of flame retardant type adhesive B mass 1% is accounted for, it stirs evenly, obtains center stock；
(2) by 74 parts of wood wools (length of wood wool be less than 60mm, wide 5-20mm, thick 0.2-0.8mm), 10g sawdust,
16g flame retardant type adhesive B, which is put into blender, to be stirred, and the paraffin wax emulsions for accounting for force plane flower quality 0.6% are continuously added
And the ammonium chloride of flame retardant type adhesive B mass 1% is accounted for, it stirs evenly, obtains center stock；
(3) use continuous flat production technology, at 190 DEG C hot pressing 20min, maintenance 7 days after obtain the present embodiment resistance
It fires oriented structure chipboard (with a thickness of 18mm).
Comparative example 2
A kind of fire-retardant oriented structure chipboard of the present embodiment, including sandwich layer and set on the surface layer of sandwich layer two sides, this is fire-retardant fixed
To the preparation process of structural particleboard the following steps are included:
(1) by 100 parts of force planes flower (length of force plane flower between 60-120mm, wide 5-20mm, thick 0.2-0.8mm), 20g
Lauxite is put into blender and stirs, and continuously adds the paraffin wax emulsions for accounting for force plane flower quality 0.35% and accounts for urea
The ammonium chloride of urea formaldehyde quality 1%, stirs evenly, and obtains center stock；
(2) by 74 parts of wood wools (length of wood wool be less than 60mm, wide 5-20mm, thick 0.2-0.8mm), 10g sawdust,
16g Lauxite, which is put into blender, to be stirred, and is continuously added the paraffin wax emulsions for accounting for force plane flower quality 0.6% and is accounted for
The ammonium chloride of Lauxite quality 1%, stirs evenly, and obtains center stock；
(3) use continuous flat production technology, at 190 DEG C hot pressing 20min, maintenance 7 days after obtain the present embodiment resistance
It fires oriented structure chipboard (with a thickness of 18mm).
Fire-retardant oriented structure chipboard made from Example 3-5, comparative example 1-2, respectively according to GB/T15104-2006
" Decorative veneered woodbased panel ", GB-T 4897-2015 " particieboard ", GB 8624-2012 " construction material and product burns
Can be classified " performance of each fire-retardant oriented structure chipboard to be tested, test result is shown in Table 1.
Table 1
Claims (9)
1. a kind of fire-retardant oriented structure chipboard, the surface layer including sandwich layer and in sandwich layer two sides is contained in sandwich layer and surface layer
Fire retardant, which is characterized in that in the surface layer, the fire retardant is phosphonized chitosan and melamine phosphate boric acid
The compound of salt；In the sandwich layer, the fire retardant is melamine phosphate borate.
2. fire-retardant oriented structure chipboard as described in claim 1, which is characterized in that the phosphonized chitosan and phosphoric acid
The compound of melamine borate salt is prepared by following methods:
The phosphonized chitosan of phase homogenous quantities and melamine phosphate borate are slowly added in water, under 50-70 DEG C of constant temperature
Quickly stirring 1-1.5h；
Wherein, the mass ratio of phosphonized chitosan and water is 1:10-20.
3. fire-retardant oriented structure chipboard as claimed in claim 1 or 2, which is characterized in that the phosphonized chitosan by
Chitosan and phosphoric acid are made through esterification.
4. fire-retardant oriented structure chipboard as claimed in claim 1 or 2, which is characterized in that the melamine phosphate boron
Hydrochlorate is prepared by following methods:
(a) phosphoric acid and ammonium dihydrogen phosphate are added to the water, melamine is added after reacting 15-25min at 45-55 DEG C, after
Continuous reaction 15-25min, cooled and filtered, washing, drying obtain melamine phosphate；
Wherein, the mass ratio of phosphoric acid, ammonium dihydrogen phosphate and water is (3-4): 1:(30-40), the mass ratio of melamine and phosphoric acid
For 1:1；
(b) melamine phosphate is added in the boric acid aqueous solution that concentration is 20%, 2-3h is reacted at 70-90 DEG C, through cold
But, after filtering and being dry, melamine phosphate borate is obtained.
5. fire-retardant oriented structure chipboard as described in claim 1, which is characterized in that according to the mass fraction, the surface layer
It include: 70-80 parts of wood wool, 5-15 parts of sawdust, 15-17 parts of flame retardant type adhesive A；
The flame retardant type adhesive A is by the compound and adhesive of phosphonized chitosan and melamine phosphate borate with matter
Amount is mixed than 1:5.
6. fire-retardant oriented structure chipboard as described in claim 1, which is characterized in that according to the mass fraction, the sandwich layer
It include: that force plane spends 100 parts, B18-22 parts of flame retardant type adhesive；
The flame retardant type adhesive B is mixed by melamine phosphate borate and adhesive with mass ratio 1:5.
7. a kind of fire retardant, which is characterized in that be the compound of phosphonized chitosan and melamine phosphate borate.
8. a kind of flame retardant type adhesive, including adhesive and the fire retardant being mixed in adhesive, which is characterized in that described is fire-retardant
Agent is the compound of phosphonized chitosan and melamine phosphate borate.
9. the preparation process of the fire-retardant oriented structure chipboard as described in any one of claim 1-6, which is characterized in that packet
Include following steps:
(1) preset mass fraction is pressed, force plane flower, flame retardant type adhesive B are stirred evenly, continuously adds and accounts for force plane flower quality
The paraffin wax emulsions of 0.25-0.5% and the ammonium chloride for accounting for flame retardant type adhesive B mass 1%, stir evenly, and obtain center stock；
(2) preset mass fraction is pressed, wood wool, flame retardant type adhesive A are stirred evenly, continuously adds and accounts for force plane flower quality
The paraffin wax emulsions of 0.5-0.65% and the ammonium chloride for accounting for flame retardant type adhesive A mass 1%, stir evenly, and obtain surface layer slurry；
(3) use continuous flat production technology, at 165-215 DEG C hot pressing 15-20min, obtain after maintenance 7 days it is described fire-retardant
Oriented structure chipboard.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114854213A (en) * | 2022-06-15 | 2022-08-05 | 千年舟新材科技集团股份有限公司 | Plate flame-retardant additive and application thereof |
| CN115366214A (en) * | 2022-08-11 | 2022-11-22 | 千年舟新材科技集团股份有限公司 | Moisture-adjusting shaving board and manufacturing method thereof |
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| CN115366214A (en) * | 2022-08-11 | 2022-11-22 | 千年舟新材科技集团股份有限公司 | Moisture-adjusting shaving board and manufacturing method thereof |
| CN115366214B (en) * | 2022-08-11 | 2023-10-24 | 千年舟新材科技集团股份有限公司 | Moisture-regulating shaving board and manufacturing method thereof |
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