CN108789717B - A kind of fireproof wood and preparation method thereof - Google Patents
A kind of fireproof wood and preparation method thereof Download PDFInfo
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- CN108789717B CN108789717B CN201810737415.5A CN201810737415A CN108789717B CN 108789717 B CN108789717 B CN 108789717B CN 201810737415 A CN201810737415 A CN 201810737415A CN 108789717 B CN108789717 B CN 108789717B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/30—Fireproofing
Abstract
The invention discloses a kind of fireproof woods and preparation method thereof, belong to building materials field.The present invention is using cetyl trimethylammonium bromide as template, ethyl orthosilicate is added, with ferric trichloride modified, obtain mesoporous substance, the toxic gases such as CO progress catalysis oxidation is converted into carbon dioxide during fire-retardant obtain, stablize timber and obtains carbon-coating, outer layer covers material is formed using melamine and formaldehyde as primary raw material, ammonium borate is added, diammonium hydrogen phosphate is wrapped up, improve the compatibility between wood-cellulose, the gap between cellulose cell can be entered, reduce its migration and volatilization, phenyltrimethoxysila,e is added, the Si-O-Si reticular structure that methyltriethoxysilane etc. is formed after decomposing increases the thermal stability of surface layer of charcoal, viscosity coats the gas of generation during Pintsch process, it prevents from escaping, further improve fire retardant performance.The present invention solves the problems, such as poor for current fireproof wood flame retardant effect.
Description
Technical field
The invention belongs to building materials fields, and in particular to a kind of fireproof wood and preparation method thereof.
Background technique
Timber is a kind of Structural Engineering material of natural reproducible.It is widely used as building by the mankind always since ancient times
Material.Due to the combustibility of timber, it is also a kind of hazardous material.In addition, timber can spontaneous combustion under the high temperature conditions.Work as timber
After fireproof agent is handled (abbreviation fireproof wood), it can effectively slow down burning velocity, control the further sprawling of flame, with
And greatly reduce the combustibility of timber.But fireproof wood itself is not a kind of incombustible material.Moreover, commonly using currently on the market
Fireproof wood it is not waterproof, it is also possible to by corrosion bacterium, the infringement of mould and insect.
Since most of common fire retarding wood protection product has moisture absorption moisture absorption, they are easy to absorb water.In timber capillary
Under the action of, the moisture that is absorbed by timber can in its conduit, fibre tracheid or cavity in other microstructure tissues or
It is moved freely in gap, leads to expansion and shrinkage phenomenon.Under natural environmental condition, this expansion and contraction can be such that timber generation answers
Power, so that cracking or splitting.As timber and Wood composite material constantly accumulate these cracking defects, they can be reduced even
Required strength character is lost, and common fireproof wood is subject to the erosion of domestomycetes and insect, this is because this
A little parasitic animals and plants can be entered in the internal structure tissue of timber by the depth crackle on surface or crack.On the other hand, due to big
The common fireproof wood in part contains acidity, they can gradually be acidified in use, reduces the elasticity modulus of timber, resists
Curved and impact strength.
In addition, gradually leaching out for fireproof agent is another major defect for commonly using fireproof wood in use.Especially
It is when fireproof wood water suction or after moisture absorption, the fireproof agent in timber can be reduced step by step, this depends primarily on its fireproof agent kind
Class, material kind and terminal use.Therefore, its fire prevention can be gradually decreased in actual use or even lose by commonly using fireproof wood
Performance.Moreover, the extract of common fireproof wood is usually harmful chemical substance for human body and environment.
Summary of the invention
The technical problems to be solved by the invention: it for the problem of current fireproof wood flame retardant effect difference, provides a kind of anti-
Fiery timber and preparation method thereof.
In order to solve the above technical problems, the present invention is using technical solution as described below:
A kind of fireproof wood includes load additive, fire prevention spike, protective coating；
The preparation method of the fire prevention spike, includes the following steps:
Fire prevention spike: it takes melamine 1 ~ 3:4 in mass ratio ~ 9 that formaldehyde is added, is warming up to 65 ~ 75 DEG C, adds melamine
The sodium carbonate liquor that the mass fraction of amine quality 20 ~ 30% is 10%, is stirred 30 ~ 40min, is cooled to room temperature, obtain cooled material,
It takes ammonium borate 2 ~ 4:2 in mass ratio ~ 5:1 ~ 3 that diammonium hydrogen phosphate, cooled material is added, is stirred 20 ~ 30min, adds cooling
The acetum that the mass fraction of amount of substance 10 ~ 30% is 10%, is stirred 1 ~ 2h in 70 ~ 80 DEG C, is cooled to room temperature, and adjusts pH
To 7, filtering takes filter residue and drying to get fire prevention spike.
The preparation method of the load additive, includes the following steps:
It takes cetyl trimethylammonium bromide 1 ~ 4:80 in mass ratio ~ 90 that deionized water is added, is stirred 20 ~ 30min,
The ferric trichloride for adding deionized water quality 2 ~ 6% is stirred 1 ~ 2h in 25 ~ 30 DEG C, adjusts pH to 9.5 ~ 10 with ammonium hydroxide,
It must be stirred liquid, ethyl orthosilicate 2 ~ 4:9 in mass ratio ~ 14 addition is taken to be stirred liquid, in 95 ~ 100 DEG C of 36 ~ 48h of heat preservation,
Filtering, takes filter cake to wash through deionized water, keeps the temperature, and is cooled to room temperature to get load additive.
Heat-retaining condition of the filter cake after deionized water is washed are as follows: be warming up in 25 ~ 30 DEG C through 5 DEG C/min heating rate
210 ~ 220 DEG C of 1 ~ 2h of heat preservation, then 500 ~ 550 DEG C of 4 ~ 5h of heat preservation are warming up to through 2 DEG C/min heating rate,
The preparation method of the protective coating, includes the following steps:
Take phenyltrimethoxysila,e, methyltriethoxysilane 2 ~ 4:1 in mass ratio ~ 3:2 ~ 5 that aminomethyl phenyl two is added
Ethoxysilane mixing, obtains mixture, take mixture 2 ~ 5:7 in mass ratio ~ 15:5 ~ 10 be added hydrochloric acid that concentration is 2mol/L,
Methylene chloride is stirred, and is evaporated under reduced pressure to get protective coating.
The condition being stirred are as follows: be warming up to 70 ~ 80 DEG C and be stirred 2 ~ 3h.
A kind of preparation method of fireproof wood includes the following steps:
According to the mass fraction, take 300 ~ 400 parts of pine powders, 80 ~ 90 parts of load additives, 40 ~ 50 parts of fire prevention spikes, 30 ~
40 parts of sepiolites, grind, and pour into mold and organize mould into base, pressurization compacting is pressed into fireproof wood matrix object, protection is taken to apply
Decamethylcyclopentaandoxane is added in layer 2 ~ 4:8 in mass ratio ~ 10, obtains mixed liquor, mixed liquor is applied to fireproof wood matrix object table
Face, in 60 ~ 70 DEG C of 1 ~ 3h of solidification to get fireproof wood.
It is described pressurization compacting condition are as follows: in 150 ~ 160 DEG C of hot pressing temperature, vacuum degree 0.1MPa, vacuum keep 10 ~
20min pressurizes then at moulding pressure 0.6MPa and suppresses 20 ~ 30min.
The present invention is compared with other methods, and advantageous effects are:
(1) present invention adds ethyl orthosilicate, with ferric trichloride pair using cetyl trimethylammonium bromide as template
It is modified, and obtains mesoporous substance, and ferro element and fire prevention spike are supported in the aperture of load additive, additive is loaded
Itself there is suction-operated, the toxic gases such as CO progress catalysis oxidation is converted into carbon dioxide during fire-retardant obtain by timber,
Stablize timber and obtain carbon-coating, the intervention of ferric trichloride improves the intensity and barriering effect of layer of charcoal, improves fire-retarding of wood performance, burning
When form fine and close layer of charcoal, the effectively evolution of the transmitting of isolation heat and imflammable gas, to terminate burning；
(2) present invention forms outer layer covers material using melamine and formaldehyde as primary raw material, and ammonium borate, phosphoric acid hydrogen is added
Diammonium is wrapped up, and the compatibility between wood-cellulose is on the one hand improved, and can be entered between cellulose cell
Gap allows fire prevention spike to penetrate into filling gap, gives full play to flame retardant property, on the other hand make ammonium borate, diammonium hydrogen phosphate solid
State reduces its migration and volatilization, there are the water capacity of part is easy to moisture absorption between wood cell, flame retardant activity object is caused to be dissolved in water,
So that flame retardant effect reduces, is wrapped up, reduce the polarity and hydrophily of fire retardant, enhance fire-retardant validity, phosphoric acid hydrogen two
The pyrogenous origin phosphoric acid of ammonium, phosphorus pentoxide can be reacted with the hydroxyl in cellulose, so that the polysaccharide of lignocellulosic is dehydrated, it is raw
At a large amount of non-combustible gas such as free radical, carbonyl, the boron element in ammonium borate reaches synergistic effect, the boride covering of generation
In wood surface, heat and oxygen exchange are prevented, flame retardant effect is rapidly reached；
(3) present invention is added hydrochloric acid and is catalyzed with phenyltrimethoxysila,e, methyltriethoxysilane etc. for raw material
So that hydrolytie polycondensation, while the ring-opening reaction of epoxy group occurs, it is formed and contains silicon coating, there is viscosity, silicon compound is due to it
Surface tension is small, and the Si-O-Si reticular structure formed after decomposition increases the thermal stability of surface layer of charcoal, and viscosity is in Pintsch process
During coat the gas of generation, prevent from escaping, further improve fire retardant performance.
Specific embodiment
Load additive: taking cetyl trimethylammonium bromide 1 ~ 4:80 in mass ratio ~ 90 that deionized water is added, and stirring is mixed
20 ~ 30min is closed, the ferric trichloride of deionized water quality 2 ~ 6% is added, is stirred 1 ~ 2h in 25 ~ 30 DEG C, is adjusted with ammonium hydroxide
PH to 9.5 ~ 10 must be stirred liquid, take ethyl orthosilicate 2 ~ 4:9 in mass ratio ~ 14 addition to be stirred liquid, in 95 ~ 100 DEG C
36 ~ 48h is kept the temperature, filtering takes filter cake to wash through deionized water, is warming up to 210 ~ 220 through 5 DEG C/min heating rate in 25 ~ 30 DEG C
DEG C 1 ~ 2h of heat preservation, then is warming up to 500 ~ 550 DEG C of 4 ~ 5h of heat preservation through 2 DEG C/min heating rate, is cooled to room temperature and adds to get load
Object.
Fire prevention spike: it takes melamine 1 ~ 3:4 in mass ratio ~ 9 that formaldehyde is added, is warming up to 65 ~ 75 DEG C, adds melamine
The sodium carbonate liquor that the mass fraction of amine quality 20 ~ 30% is 10%, is stirred 30 ~ 40min, is cooled to room temperature, obtain cooled material,
It takes ammonium borate 2 ~ 4:2 in mass ratio ~ 5:1 ~ 3 that diammonium hydrogen phosphate, cooled material is added, is stirred 20 ~ 30min, adds cooling
The acetum that the mass fraction of amount of substance 10 ~ 30% is 10%, is stirred 1 ~ 2h in 70 ~ 80 DEG C, is cooled to room temperature, and adjusts pH
To 7, filtering takes filter residue and drying to get fire prevention spike.
Protective coating: take phenyltrimethoxysila,e, methyltriethoxysilane 2 ~ 4:1 in mass ratio ~ 3:2 ~ 5 that first is added
The mixing of base diethylamino phenyl oxysilane, obtains mixture, and taking mixture 2 ~ 5:7 in mass ratio ~ 15:5 ~ 10 that concentration is added is 2mol/L
Hydrochloric acid, methylene chloride, be warming up to 70 ~ 80 DEG C and be stirred 2 ~ 3h, be evaporated under reduced pressure to get protective coating.
A kind of preparation method of fireproof wood, includes the following steps:
According to the mass fraction, take 300 ~ 400 parts of pine powders, 80 ~ 90 parts of load additives, 40 ~ 50 parts of fire prevention spikes, 30 ~
40 parts of sepiolites, grind, and pour into mold and organize mould at base, in 150 ~ 160 DEG C of hot pressing temperature, vacuum degree 0.1MPa, vacuum
Keep 10 ~ 20min, then at moulding pressure 0.6MPa pressurize 20 ~ 30min, be pressed into fireproof wood matrix object, take protective coating by
Decamethylcyclopentaandoxane is added in 2 ~ 4:8 of mass ratio ~ 10, obtains mixed liquor, mixed liquor is applied to fireproof wood matrix object surface, in
60 ~ 70 DEG C of 1 ~ 3h of solidification are to get fireproof wood.
Load additive: it takes cetyl trimethylammonium bromide 1:80 in mass ratio that deionized water is added, is stirred
20min adds the ferric trichloride of deionized water quality 2%, is stirred 1h in 25 ~ 30 DEG C, adjusts pH to 9.5 with ammonium hydroxide, obtains
It is stirred liquid, ethyl orthosilicate 2:9 in mass ratio addition is taken to be stirred liquid, in 95 DEG C of heat preservation 36h, filtering takes filter cake to pass through
Deionized water washing is warming up to 210 DEG C of heat preservation 1h through 5 DEG C/min heating rate in 25 DEG C, then heats up through 2 DEG C/min heating rate
To 500 DEG C of heat preservation 4h, it is cooled to room temperature to get load additive.
Fire prevention spike: it takes melamine 1:4 in mass ratio that formaldehyde is added, is warming up to 65 DEG C, adds melamine quality
The sodium carbonate liquor that 20% mass fraction is 10%, is stirred 30min, is cooled to room temperature, obtain cooled material, take ammonium borate by matter
Diammonium hydrogen phosphate, cooled material is added than 2:2:1 in amount, is stirred 20min, the mass fraction for adding cooled material quality 10% is
10% acetum is stirred 1h in 70 DEG C, is cooled to room temperature, and adjusts pH to 7, and filtering takes filter residue and drying to get fire prevention
Spike.
Protective coating: take phenyltrimethoxysila,e, methyltriethoxysilane 2:1:2 in mass ratio that aminomethyl phenyl is added
Diethoxy silane mixing, obtains mixture, takes mixture 2:7:5 in mass ratio that hydrochloric acid, the dichloromethane that concentration is 2mol/L is added
Alkane is warming up to 70 DEG C and is stirred 2h, is evaporated under reduced pressure to get protective coating.
A kind of preparation method of fireproof wood, includes the following steps:
According to the mass fraction, 300 parts of pine powders, 80 parts of load additives, 40 parts of fire prevention spikes, 30 parts of sepiolites are taken, are ground
It is milled broken, pours into mold and organize mould into base, 10min is kept in 150 DEG C of hot pressing temperature, vacuum degree 0.1MPa, vacuum, then at pressurization
Pressure 0.6MPa 20 ~ 30min of pressurization, is pressed into fireproof wood matrix object, takes protective coating 2:8 in mass ratio that decamethyl ring is added
Five siloxanes, obtain mixed liquor, and mixed liquor is applied to fireproof wood matrix object surface, in 60 DEG C of solidification 1h to get fireproof wood.
Load additive: it takes cetyl trimethylammonium bromide 3:85 in mass ratio that deionized water is added, is stirred
25min adds the ferric trichloride of deionized water quality 4%, is stirred 1.5h in 28 DEG C, adjusts pH to 9.8 with ammonium hydroxide, obtains
It is stirred liquid, ethyl orthosilicate 3:10 in mass ratio addition is taken to be stirred liquid, in 98 DEG C of heat preservation 40h, filtering takes filter cake to pass through
Deionized water washing, is warming up to 215 DEG C of heat preservation 1.5h through 5 DEG C/min heating rate in 28 DEG C, then through 2 DEG C/min heating rate liter
Temperature is cooled to room temperature to 525 DEG C of heat preservation 4.5h to get load additive.
Fire prevention spike: it takes melamine 2:5 in mass ratio that formaldehyde is added, is warming up to 70 DEG C, adds melamine quality
The sodium carbonate liquor that 25% mass fraction is 10%, is stirred 35min, is cooled to room temperature, obtain cooled material, take ammonium borate by matter
Diammonium hydrogen phosphate, cooled material is added than 3:4:2 in amount, is stirred 25min, the mass fraction for adding cooled material quality 20% is
10% acetum is stirred 1.5h in 75 DEG C, is cooled to room temperature, and adjusts pH to 7, and filtering takes filter residue and drying to get anti-
Fiery spike.
Protective coating: take phenyltrimethoxysila,e, methyltriethoxysilane 3:2:3 in mass ratio that aminomethyl phenyl is added
Diethoxy silane mixing, obtains mixture, takes mixture 4:10:8 in mass ratio that hydrochloric acid, the dichloromethane that concentration is 2mol/L is added
Alkane is warming up to 75 DEG C and is stirred 2.5h, is evaporated under reduced pressure to get protective coating.
A kind of preparation method of fireproof wood, includes the following steps:
According to the mass fraction, 350 parts of pine powders, 85 parts of load additives, 45 parts of fire prevention spikes, 35 parts of sepiolites are taken, are ground
It is milled broken, pours into mold and organize mould into base, 15min is kept in 155 DEG C of hot pressing temperature, vacuum degree 0.1MPa, vacuum, then at pressurization
Pressure 0.6MPa pressurization 25min, is pressed into fireproof wood matrix object, takes protective coating 3:9 in mass ratio that decamethyl ring five is added
Siloxanes obtains mixed liquor, and mixed liquor is applied to fireproof wood matrix object surface, in 65 DEG C of solidification 1.5h to get fireproof wood.
Load additive: it takes cetyl trimethylammonium bromide 4:90 in mass ratio that deionized water is added, is stirred
30min adds the ferric trichloride of deionized water quality 6%, is stirred 2h in 30 DEG C, adjusts pH to 10 with ammonium hydroxide, must stir
Mixed liquor takes ethyl orthosilicate 4:14 in mass ratio addition to be stirred liquid, and in 100 DEG C of heat preservation 48h, filtering takes filter cake to be gone
Ion water washing is warming up to 220 DEG C of heat preservation 2h through 5 DEG C/min heating rate in 30 DEG C, then is warming up to through 2 DEG C/min heating rate
550 DEG C of heat preservation 5h are cooled to room temperature to get load additive.
Fire prevention spike: it takes melamine 3:9 in mass ratio that formaldehyde is added, is warming up to 75 DEG C, adds melamine quality
The sodium carbonate liquor that 30% mass fraction is 10%, is stirred 40min, is cooled to room temperature, obtain cooled material, take ammonium borate by matter
Diammonium hydrogen phosphate, cooled material is added than 4:5:3 in amount, is stirred 30min, the mass fraction for adding cooled material quality 30% is
10% acetum is stirred 2h in 80 DEG C, is cooled to room temperature, and adjusts pH to 7, and filtering takes filter residue and drying to get fire prevention
Spike.
Protective coating: take phenyltrimethoxysila,e, methyltriethoxysilane 4:3:5 in mass ratio that aminomethyl phenyl is added
Diethoxy silane mixing, obtains mixture, takes mixture 5:15:10 in mass ratio that hydrochloric acid, the dichloro that concentration is 2mol/L is added
Methane is warming up to 80 DEG C and is stirred 3h, is evaporated under reduced pressure to get protective coating.
A kind of preparation method of fireproof wood, includes the following steps:
According to the mass fraction, 400 parts of pine powders, 90 parts of load additives, 50 parts of fire prevention spikes, 40 parts of sepiolites are taken, are ground
It is milled broken, pours into mold and organize mould into base, 20min is kept in 160 DEG C of hot pressing temperature, vacuum degree 0.1MPa, vacuum, then at pressurization
Pressure 0.6MPa pressurization 30min, is pressed into fireproof wood matrix object, takes protective coating 4:10 in mass ratio that decamethyl ring five is added
Siloxanes obtains mixed liquor, and mixed liquor is applied to fireproof wood matrix object surface, in 70 DEG C of solidification 3h to get fireproof wood.
Comparative example 1: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking load additive.
Comparative example 2: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking fire prevention spike.
Comparative example 3: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking protective coating.
Comparative example 4: the fireproof wood of company, Hefei City production.
Fire protecting performance test is carried out to fireproof wood obtained by the present invention, 30 ~ 40h, fire protecting performance are heated at 500 DEG C
Testing standard is GB/T5464-1999, as a result such as table 1:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | |
| Fire-protection rating | A1 | A1 | A1 | A1 | B3 | B2 | A1 |
| High temperature resistance | Without metamorphosis after 35h | Without metamorphosis after 40h | Without metamorphosis after 35h | Without metamorphosis after 25h | Without metamorphosis after 20h | Without metamorphosis after 30h | Without metamorphosis after 25h |
In summary, fireproof wood properties of the invention are superior to commercial product, have excellent fire protection flame retarding
Can, it deserves strong recommendation.
Claims (1)
1. a kind of preparation method of fireproof wood, it is characterised in that: including load additive, fire prevention spike, protective coating；
The preparation method of the fire prevention spike, includes the following steps:
Fire prevention spike: it takes melamine 1 ~ 3:4 in mass ratio ~ 9 that formaldehyde is added, is warming up to 65 ~ 75 DEG C, adds melamine matter
The sodium carbonate liquor that the mass fraction of amount 20 ~ 30% is 10%, is stirred 30 ~ 40min, is cooled to room temperature, obtain cooled material, take boron
Diammonium hydrogen phosphate, cooled material is added in sour ammonium 2 ~ 4:2 in mass ratio ~ 5:1 ~ 3, is stirred 20 ~ 30min, adds cooling material
The acetum that the mass fraction of amount 10 ~ 30% is 10%, is stirred 1 ~ 2h in 70 ~ 80 DEG C, is cooled to room temperature, and adjusts pH to 7,
Filtering takes filter residue and drying to get fire prevention spike；
The preparation method of the load additive, includes the following steps:
It takes cetyl trimethylammonium bromide 1 ~ 4:80 in mass ratio ~ 90 that deionized water is added, is stirred 20 ~ 30min, then plus
The ferric trichloride for entering deionized water quality 2 ~ 6% is stirred 1 ~ 2h in 25 ~ 30 DEG C, adjusts pH to 9.5 ~ 10 with ammonium hydroxide, must stir
Mixed liquor is mixed, takes ethyl orthosilicate 2 ~ 4:9 in mass ratio ~ 14 addition to be stirred liquid, in 95 ~ 100 DEG C of 36 ~ 48h of heat preservation, mistake
Filter, takes filter cake to wash through deionized water, keeps the temperature, and is cooled to room temperature to get load additive；The filter cake is washed through deionized water
Heat-retaining condition afterwards are as follows: be warming up to 210 ~ 220 DEG C of 1 ~ 2h of heat preservation through 5 DEG C/min heating rate in 25 ~ 30 DEG C, then through 2 DEG C/min
Heating rate is warming up to 500 ~ 550 DEG C of 4 ~ 5h of heat preservation；
The preparation method of the protective coating, includes the following steps:
Take phenyltrimethoxysila,e, methyltriethoxysilane 2 ~ 4:1 in mass ratio ~ 3:2 ~ 5 that aminomethyl phenyl diethoxy is added
Base silane mixing, obtains mixture, takes mixture 2 ~ 5:7 in mass ratio ~ 15:5 ~ 10 that hydrochloric acid, the dichloro that concentration is 2mol/L is added
Methane is stirred, the condition being stirred are as follows: is warming up to 70 ~ 80 DEG C and is stirred 2 ~ 3h；Vacuum distillation is to get protection
Coating；
Specific preparation step are as follows:
According to the mass fraction, 300 ~ 400 parts of pine powders, 80 ~ 90 parts of load additives, 40 ~ 50 parts of fire prevention spikes, 30 ~ 40 parts are taken
Sepiolite is ground, and is poured into mold and is organized mould into base, keeps in 150 ~ 160 DEG C of hot pressing temperature, vacuum degree 0.1MPa, vacuum
10 ~ 20min, then at moulding pressure 0.6MPa pressurize compacting 20 ~ 30min, be pressed into fireproof wood matrix object, take protective coating by
Decamethylcyclopentaandoxane is added in 2 ~ 4:8 of mass ratio ~ 10, obtains mixed liquor, mixed liquor is applied to fireproof wood matrix object surface, in
60 ~ 70 DEG C of 1 ~ 3h of solidification are to get fireproof wood.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100079A (en) * | 2007-07-13 | 2008-01-09 | 北京工业大学 | Core-shell type multifunctional composite wood precursor solution and its preparation method |
| CN101279457A (en) * | 2008-05-16 | 2008-10-08 | 北京工业大学 | Starch and inorganic compound precursor liquid and method of preparing the same |
| CN105150323A (en) * | 2008-06-27 | 2015-12-16 | 索菲克特德国公司 | Method for treating a wood board |
| CN107096545A (en) * | 2017-04-27 | 2017-08-29 | 扬州大学 | A kind of preparation method of yolk eggshell structural composite material |
| JP2017218820A (en) * | 2016-06-08 | 2017-12-14 | 住友林業株式会社 | Fire resistant wood structural material |
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2018
- 2018-07-06 CN CN201810737415.5A patent/CN108789717B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100079A (en) * | 2007-07-13 | 2008-01-09 | 北京工业大学 | Core-shell type multifunctional composite wood precursor solution and its preparation method |
| CN101279457A (en) * | 2008-05-16 | 2008-10-08 | 北京工业大学 | Starch and inorganic compound precursor liquid and method of preparing the same |
| CN105150323A (en) * | 2008-06-27 | 2015-12-16 | 索菲克特德国公司 | Method for treating a wood board |
| JP2017218820A (en) * | 2016-06-08 | 2017-12-14 | 住友林業株式会社 | Fire resistant wood structural material |
| CN107096545A (en) * | 2017-04-27 | 2017-08-29 | 扬州大学 | A kind of preparation method of yolk eggshell structural composite material |
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