CN102615684A - Fire retardant treatment process for wood - Google Patents
Fire retardant treatment process for wood Download PDFInfo
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- CN102615684A CN102615684A CN2012100948452A CN201210094845A CN102615684A CN 102615684 A CN102615684 A CN 102615684A CN 2012100948452 A CN2012100948452 A CN 2012100948452A CN 201210094845 A CN201210094845 A CN 201210094845A CN 102615684 A CN102615684 A CN 102615684A
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Abstract
A fire retardant treatment process for wood comprises the following steps: firstly, preparing a fire retardant solution 1 and a fire retardant solution 2; then putting the wood into an immersion tank; then vacuumizing the immersion tank to form negative pressure in the immersion tank; then using the negative pressure in the immersion tank to pump the fire retardant solution 1 into the immersion tank; then pressurizing the immersion tank to ensure that the fire retardant solution 1 is immersed into the wood as deep as possible; then discharging redundant fire retardant solution 1 into a fire retardant solution 1 storage tank; after that, vacuumizing the immersion tank to form negative pressure; then using the negative pressure in the immersion tank to pump the fire retardant solution 2 into the tank; then pressurizing the immersion tank to ensure that the fire retardant solution 2 is immersed into the wood as deep as possible; then discharging the redundant fire retardant solution 2 into a fire retardant 2 storage tank; then taking out the well immersed wood; and finally, drying the wood to complete the fire retardant treatment for the wood. According to the fire retardant treatment process for wood, the fire retardant efficiency is high, the fire retardant solution in the wood can be effectively prevented from losing, the smoke and poison gas in the wood can be inhibited from releasing in a fire disaster, and the fire retardant treatment cost for the wood is low.
Description
Technical field
The present invention relates to a kind of fire retardant treatment process, particularly relate to a kind of Wood fire retardant treatment process.
Background technology
Timber is widely used in furniture manufacturing and interior decoration.Yet timber is inflammable, the generation of many fire with spread all relevant with timber.Along with high buildings and large mansions are increasing, fire increases people's harm day by day.Therefore, fire-retarding of wood is handled the needs concerning the people life property safety.
Fire-retardant, detection, fire extinguishing and Tobacco Control are the important steps of control fire.When improving fire-fighting function and fire-fighting infrastructure; Prolong the not fire resistance period of flammable structural material; Reduce the combustibility of material; Slow down the burning velocity of combustible material, reduce smoke-producing amount, for the generation that prevents fire and to win that fire early period of origination valuable time comes the evacuation personnel and control immediately, fight a fire all be crucial.
At present, the existing relevant report of handling about fire-retarding of wood on a small quantity.Like application number is that the one Chinese patent application of 200910030996.X discloses a kind of " Wood fire retardant treatment process ", this technology be according to: feed, vacuumize, immersion liquid, return liquid, get 5 processing steps of material and carry out.But this fire retardant treatment process has been owing to just just accomplished the flame treatment of timber through an immersion liquid, has therefore that flame retarding efficiency is low, fire resistant fluid is prone to run off, a problem such as big, the fire-retarding of wood processing cost height of smog poison gas in the fire.In addition; The patent No. is that the Chinese patent of ZL02145544.9 also discloses " a kind of Wood fire retardant treatment process "; This fire retardant treatment process is that timber has all been adopted ultrasonic Treatment in twice immersion of fire resistant fluid, and concrete operations are: timber ultrasonic Treatment 1～1.5 hour in a soak (dicyandiamide, urea, formaldehyde), take out oven dry; Ultrasonic Treatment 1～1.5 hour in secondary soak (diammonium hydrogen phosphate, benzene first bromine ammonium) is taken out oven dry again.But; Formaldehyde in this fire retardant treatment process exists formaldehyde to discharge harm environment and the healthy problem of human body in immersion treatment and Wood Processing use thereof; Components such as diammonium hydrogen phosphate in use be prone to run off and the frosting of getting damp, and timber needs to take out oven dry after an immersion liquid and ultrasonic Treatment, just can carry out secondary immersion liquid and ultrasonic Treatment; Technology is comparatively loaded down with trivial details, thereby causes the flame treatment efficient of timber low.
Summary of the invention
The objective of the invention is to above-mentioned existing problems and deficiency; Provide a kind of flame retarding efficiency high; The loss of fire resistant fluid on the timber can be effectively prevented, the release of timber smog poison gas in fire can be effectively suppressed again, and the low Wood fire retardant treatment process of flame treatment cost of timber.
Technical scheme of the present invention is achieved in that
Wood fire retardant treatment process of the present invention is characterized in comprising following processing step:
A, the preparation fire resistant fluid 1. with fire resistant fluid 2.;
B, timber put into impregnate filling, and close and irritate door;
C, unlatching extract system impregnate in the filling and vacuumize, and make to impregnate to irritate the interior negative pressure that forms;
D, open liquid flowing valve, utilize the negative pressure of impregnating in irritating with fire resistant fluid 1. suction impregnate in the filling, till liquid level covers timber fully;
E, close extract system, open air compressor and pressurize, make fire resistant fluid 1. immerse the enough degree of depth of timber impregnating in the filling;
F, open draining valve, utilize the pressure that impregnates in irritating that 1. unnecessary fire resistant fluid is entered fire resistant fluid 1. in the holding vessel;
G, unlatching extract system impregnate in the filling and vacuumize, and make to impregnate to irritate the interior negative pressure that forms;
H, open liquid flowing valve, utilize the negative pressure of impregnating in irritating with fire resistant fluid 2. suction impregnate in the filling, till liquid level covers timber fully;
I, close extract system, open air compressor and pressurize, make fire resistant fluid 2. immerse the enough degree of depth of timber impregnating in the filling;
J, open draining valve, utilize the pressure that impregnates in irritating that 2. unnecessary fire resistant fluid is entered fire resistant fluid 2. in the holding vessel;
K, will impregnate the filling pressure release, and take out and impregnate good timber;
L, will impregnate good timber and send in the dry kiln, carry out drying by the drying of wood master meter corresponding with it after, accomplish fire-retarding of wood and handle.
Wherein, above-mentioned fire retardant is 1. by APP (APP) and alchlor (AlCl
36H
2O) it is formulated to add aqueous dispersion.And can know through repeatedly research and test, when each constituent is carried out proportioning by following parts by weight, the flame retardant effect that timber is realized ideal, above-mentioned APP (APP) is 100 parts, alchlor (AlCl
36H
2O) be 20～60 parts, water is 40～160 parts, and above umber is all counted by weight.
2. above-mentioned fire retardant is waterglass (Na
2On SiO
2).
In order to make timber can fully absorb fire retardant,, before carrying out above-mentioned steps b, earlier moisture content is dried to 13% ~ 18% to reach desirable flame retardant effect.
The present invention is impregnated the technology that processing realizes that fire-retarding of wood is handled owing to having adopted two kinds of fire resistant fluids to come that timber is carried out two stage vacuum high-pressures; Can effectively improve impregnating the degree of depth, medicine carrying amount and handling work efficiency of timber through this process; Greatly improve the reliability of fire-retarding of wood, and selected APP (APP), not only wide material sources in the fire resistant fluid for use; Cheap; And flame retarding efficiency is high, can effectively improve the fire resistance of timber, has also selected alchlor (AlCl for use in the fire retardant simultaneously
36H
2O) and waterglass (Na
2On SiO
2), through alchlor (AlCl
36H
2O) with waterglass (Na
2On SiO
2) curing reaction in timber; Form aluminium hydroxide, silica gel and the alumino-silicate of indissoluble; Timber is formed effective covering protection effect, can not only effectively prevent the loss of fire resistant fluid on the timber like this, can effectively suppress the release of timber smog poison gas in fire again.And the present invention also to have a flame treatment cost low, advantage such as applied widely can be used for the fire-retardant solid wooden floor board of processing and fabricating, fire-retardant furniture, fire-retardant ceiling, fire-retardant door and window, flame-retardant decorative parts etc.
The specific embodiment
Wood fire retardant treatment process of the present invention comprises following processing step:
A, the preparation fire resistant fluid 1. with fire resistant fluid 2.;
B, timber put into impregnate filling, and close and irritate door;
C, unlatching extract system impregnate in the filling and vacuumize, and make to impregnate to irritate the interior negative pressure that forms;
D, unlatching liquid flowing valve, the negative pressure that utilization is impregnated in irritating will be by APP (APP) and alchlor (AlCl
36H
2O) add the formulated fire resistant fluid of aqueous dispersion 1. suction impregnate in the filling, till liquid level covers timber fully;
E, close extract system, open air compressor and pressurize, make fire resistant fluid 1. immerse the enough degree of depth of timber impregnating in the filling;
F, open draining valve, utilize the pressure that impregnates in irritating that 1. unnecessary fire resistant fluid is entered fire resistant fluid 1. in the holding vessel;
G, unlatching extract system impregnate in the filling and vacuumize, and make to impregnate to irritate the interior negative pressure that forms;
H, unlatching liquid flowing valve, the negative pressure that utilization is impregnated in irritating will be as fire resistant fluid waterglass (Na 2.
2On SiO
2) suction impregnates in the filling, till liquid level covers timber fully;
I, close extract system, open air compressor and pressurize, make fire resistant fluid 2. immerse the enough degree of depth of timber impregnating in the filling;
J, open draining valve, utilize the pressure that impregnates in irritating that 2. unnecessary fire resistant fluid is entered fire resistant fluid 2. in the holding vessel;
K, will impregnate the filling pressure release, and take out and impregnate good timber;
L, will impregnate good timber and send in the dry kiln, carry out drying by the drying of wood master meter corresponding with it after, accomplish fire-retarding of wood and handle.
Can know through repeatedly research and test, when fire resistant fluid each constituent is 1. carried out proportioning by following parts by weight, the flame retardant effect that timber is realized ideal, APP (APP) is 100 parts, alchlor (AlCl
36H
2O) be 20～60 parts, water is 40～160 parts, and above umber is all counted by weight.
In order to make timber can fully absorb fire retardant,, before carrying out above-mentioned steps b, earlier moisture content is dried to 13%～18% to reach desirable flame retardant effect.
Below be to come Wood fire retardant treatment process of the present invention is carried out concrete description through a plurality of embodiment:
Embodiment one:
At first, the preparation fire resistant fluid 1. with fire resistant fluid 2.;
Then, be that the poplar plate side piling entrucking of 2000mm * 200mm * 50mm is sent in the immersion can with specification, close a jar door;
Then, open extract system, be evacuated to a jar internal pressure and be lower than 0.09MPa, and pressurize (negative pressure) time 15 ~ 60min;
Then; Open liquid flowing valve; Utilize jar interior negative pressure with in fire resistant fluid
the suction jar, till liquid level covers timber fully;
Then; Close extract system; Open the air compressor pressure impregnating, make a jar internal pressure reach 0.5 ~ 1.5MPa, keep 25 ~ 70 ℃ of jar interior temperature; Pressing time, 30 ~ 300min made fire resistant fluid
immerse enough degree of depth;
Then; Open draining valve, utilize a jar internal pressure that unnecessary fire resistant fluid
is entered in fire resistant fluid
holding vessel;
Then, open extract system, be evacuated to a jar internal pressure and drop to and be lower than 0.09MPa, and pressurize (negative pressure) time 15 ~ 60min;
Then; Open liquid flowing valve; Utilize jar interior negative pressure with in fire resistant fluid
the suction jar, till liquid level covers timber fully;
Then; Close extract system; Open air compressor to pressurizeing in the jar, make a jar internal pressure reach 0.5 ~ 1.5MPa, temperature is 25 ~ 70 ℃ in jar; Pressing time, 30 ~ 300min made fire resistant fluid
immerse enough degree of depth;
Then; Open draining valve, utilize a jar internal pressure that unnecessary fire resistant fluid
is entered in fire resistant fluid
holding vessel;
Then, will impregnate the filling pressure release, and take out and impregnate good poplar plate side;
At last, will impregnate good poplar plate side and send in the dry kiln, carry out drying, promptly get fire-retardant poplar plate side by the drying schedule of poplar.
Embodiment two:
At first, the preparation fire resistant fluid 1. with fire resistant fluid 2.;
Then, be that the China fir plate side piling entrucking of 2000mm * 30mm * 30mm is sent in the immersion can with specification, close a jar door;
Then, open extract system, be evacuated to a jar internal pressure and be lower than 0.09MPa, and pressurize (negative pressure) time 20 ~ 45min;
Then; Open liquid flowing valve; Utilize jar interior negative pressure with in fire resistant fluid
the suction jar, till liquid level covers timber fully;
Then; Close extract system; The pressurization of unlatching air compressor; Make a jar internal pressure reach 0.5 ~ 1.5MPa, and dwell time 60min, make fire resistant fluid
immerse enough degree of depth;
Then; Open draining valve, utilize a jar internal pressure that unnecessary fire resistant fluid
is entered in fire resistant fluid
holding vessel;
Then, open extract system, be evacuated to a jar internal pressure and be lower than 0.09MPa, and pressurize (negative pressure) time 20 ~ 30min;
Then; Open liquid flowing valve; Utilize jar interior negative pressure with in fire resistant fluid
the suction jar, till liquid level covers timber fully;
Then; Close extract system; The pressurization of unlatching air compressor makes a jar internal pressure reach 0.5 ~ 1.5MPa, and temperature is 25 ~ 70 ℃ in jar; Pressing time, 120min made fire resistant fluid
immerse enough degree of depth;
Then; Open draining valve, utilize a jar internal pressure that unnecessary fire resistant fluid
is entered in fire resistant fluid
holding vessel;
Then, will impregnate the filling pressure release, and take out and impregnate good China fir plate side;
At last, will impregnate good China fir plate side and send in the dry kiln, carry out dry solidification, promptly get fire-retardant China fir plate side by the China fir drying schedule of routine.
Embodiment three:
At first, the preparation fire resistant fluid 1. with fire resistant fluid 2.;
Then, be that the toothed oak plank side piling entrucking of 2000mm * 200mm * 20mm is sent in the immersion can with specification, close a jar door;
Then, open extract system, be evacuated to a jar internal pressure and be lower than 0.09MPa, and the pumpdown time is 40min;
Then; Open liquid flowing valve; Utilize jar interior negative pressure with in fire resistant fluid
the suction jar, till liquid level covers timber fully;
Then; Close extract system; Open the air compressor pressure impregnating, make a jar internal pressure reach 0.5 ~ 1.5MPa, temperature is 25 ~ 70 ℃ in jar; Pressing time, 60min made fire resistant fluid
immerse enough degree of depth;
Then; Open draining valve, utilize a jar internal pressure that unnecessary fire resistant fluid
is entered in fire resistant fluid
holding vessel;
Then, open extract system, be evacuated to a jar internal pressure and be lower than 0.09MPa, and the pumpdown time is 20min;
Then; Open liquid flowing valve; Utilize jar interior negative pressure with in fire resistant fluid
the suction jar, till liquid level covers timber fully;
Then; Close extract system; Open the air compressor pressure impregnating, make a jar internal pressure reach 0.5 ~ 1.5MPa, temperature is 25 ~ 70 ℃ in jar; Pressing time, 100min made fire resistant fluid
immerse enough degree of depth;
Then; Open draining valve, utilize a jar internal pressure that unnecessary fire resistant fluid
is entered in fire resistant fluid
holding vessel;
Then, will impregnate the filling pressure release, and take out and impregnate good toothed oak plank side;
At last, will impregnate good toothed oak plank side and send in the dry kiln, carry out dry solidification, promptly get fire-retardant toothed oak plank side by the wooden drying schedule of the toothed oak of routine.
Embodiment four:
At first, the preparation fire resistant fluid 1. with fire resistant fluid 2.;
Then, be that the linden veneer piling entrucking of 2000mm * 200mm * 1mm is sent in the immersion can with specification, close a jar door;
Then, open extract system, be evacuated to a jar internal pressure and be lower than 0.09MPa, the pumpdown time is 20min;
Then; Open liquid flowing valve; Utilize jar interior negative pressure with in fire resistant fluid
the suction jar, till liquid level covers timber fully;
Then; Close extract system; Open the air compressor pressure impregnating, make a jar internal pressure reach 0.5 ~ 1.5MPa, temperature is 25 ~ 70 ℃ in jar; Pressing time, 30min made fire resistant fluid
immerse enough degree of depth;
Then; Open draining valve, utilize a jar internal pressure that unnecessary fire resistant fluid
is entered in fire resistant fluid
holding vessel;
Then, open extract system, be evacuated to a jar internal pressure and be lower than 0.09MPa, the pumpdown time is 20min;
Then; Open liquid flowing valve; Utilize jar interior negative pressure with in fire resistant fluid
the suction jar, till liquid level covers timber fully;
Then; Close extract system; Open the air compressor pressure impregnating, make a jar internal pressure reach 0.5 ~ 1.5MPa, temperature is 25 ~ 70 ℃ in jar; Pressing time, 40min made fire resistant fluid
immerse enough degree of depth;
Then; Open draining valve, utilize a jar internal pressure that unnecessary fire resistant fluid
is entered in fire resistant fluid
holding vessel;
Then, will impregnate the filling pressure release, and take out and impregnate good linden veneer;
At last, will impregnate good linden veneer and send in the dry kiln, carry out dry solidification, promptly get fire-retardant linden veneer by the linden drying schedule of routine.
The present invention describes through embodiment; But the present invention is not constituted restriction, with reference to description of the invention, other variations of the disclosed embodiments; Professional person as for this area expects that easily such variation should belong within the scope thereof of the present invention.
Claims (5)
1. Wood fire retardant treatment process is characterized in that comprising following processing step:
A, the preparation fire resistant fluid 1. with fire resistant fluid 2.;
B, timber put into impregnate filling, and close and irritate door;
C, unlatching extract system impregnate in the filling and vacuumize, and make to impregnate to irritate the interior negative pressure that forms;
D, open liquid flowing valve, utilize the negative pressure of impregnating in irritating with fire resistant fluid 1. suction impregnate in the filling, till liquid level covers timber fully;
E, close extract system, open air compressor and pressurize, make fire resistant fluid 1. immerse the enough degree of depth of timber impregnating in the filling;
F, open draining valve, utilize the pressure that impregnates in irritating that 1. unnecessary fire resistant fluid is entered fire resistant fluid 1. in the holding vessel;
G, unlatching extract system impregnate in the filling and vacuumize, and make to impregnate to irritate the interior negative pressure that forms;
H, open liquid flowing valve, utilize the negative pressure of impregnating in irritating with fire resistant fluid 2. suction impregnate in the filling, till liquid level covers timber fully;
I, close extract system, open air compressor and pressurize, make fire resistant fluid 2. immerse the enough degree of depth of timber impregnating in the filling;
J, open draining valve, utilize the pressure that impregnates in irritating that 2. unnecessary fire resistant fluid is entered fire resistant fluid 2. in the holding vessel;
K, will impregnate the filling pressure release, and take out and impregnate good timber;
L, will impregnate good timber and send in the dry kiln, carry out drying by the drying of wood master meter corresponding with it after, accomplish fire-retarding of wood and handle.
2. according to the said Wood fire retardant treatment process of claim 1, it is characterized in that above-mentioned fire retardant is 1. by APP (APP) and alchlor (AlCl
36H
2O) it is formulated to add aqueous dispersion.
3. according to the said Wood fire retardant treatment process of claim 2, it is characterized in that above-mentioned APP (APP) is 100 parts, alchlor (AlCl
36H
2O) be 20～60 parts, water is 40～160 parts, and above umber is all counted by weight.
4. according to the said Wood fire retardant treatment process of claim 1, it is characterized in that 2. above-mentioned fire retardant is waterglass (Na
2On SiO
2).
5. according to the said Wood fire retardant treatment process of claim 1, it is characterized in that before carrying out above-mentioned steps b, earlier moisture content is dried to 13% ~ 18%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100948452A CN102615684A (en) | 2012-04-01 | 2012-04-01 | Fire retardant treatment process for wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100948452A CN102615684A (en) | 2012-04-01 | 2012-04-01 | Fire retardant treatment process for wood |
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|---|---|
| CN102615684A true CN102615684A (en) | 2012-08-01 |
Family
ID=46556063
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| CN2012100948452A Pending CN102615684A (en) | 2012-04-01 | 2012-04-01 | Fire retardant treatment process for wood |
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| CN103265051A (en) * | 2013-05-16 | 2013-08-28 | 中南林业科技大学 | Method for in situ generating mesoporous molecular sieve precursors in wood material |
| CN105479821A (en) * | 2014-10-10 | 2016-04-13 | 廖树汉 | Wood clamping pipe capable of resisting insect and ant, resisting flame and resisting water |
| CN105881664A (en) * | 2014-09-22 | 2016-08-24 | 廖树汉 | Anti-ant anti-water-soaking fire-proof woody plywood |
| CN105881988A (en) * | 2014-10-10 | 2016-08-24 | 廖树汉 | Water and fire resistant pipe with clamped wood for preventing insects and ants |
| CN105881666A (en) * | 2014-10-09 | 2016-08-24 | 廖树汉 | Insect-and-ant-bite-prevention inflaming retarding water resistant solid wood clamping plate |
| CN107009471A (en) * | 2017-05-12 | 2017-08-04 | 阜南县腾祥工艺品有限公司 | A kind of preparation method of wooden scoop |
| CN107009468A (en) * | 2017-05-12 | 2017-08-04 | 阜南县腾祥工艺品有限公司 | A kind of method that wooden mat makes |
| CN107081836A (en) * | 2017-05-06 | 2017-08-22 | 阜南县腾祥工艺品有限公司 | A kind of method of bassie processing and fabricating |
| CN107127847A (en) * | 2017-04-27 | 2017-09-05 | 广西钦州胜腾商务有限公司 | A kind of fireproof treatment method of timber |
| CN108425285A (en) * | 2018-05-14 | 2018-08-21 | 绵阳朴艺新材料有限公司 | Wood skin wallpaper with flame retarding function and preparation method thereof |
| US20180340051A1 (en) * | 2017-05-26 | 2018-11-29 | Nichia Corporation | Modified fibrous wollastonite and method of producing the same |
| CN110497493A (en) * | 2019-09-29 | 2019-11-26 | 中南林业科技大学 | The method of organic impregnation modified artificial forest wood |
| CN110757605A (en) * | 2019-09-29 | 2020-02-07 | 中南林业科技大学 | Method for modifying artificial forest wood by phenol-aldehyde impregnation |
| CN110900770A (en) * | 2019-11-15 | 2020-03-24 | 郑州赋安防火门有限公司 | Preparation method of wooden fireproof door and wooden fireproof door |
| CN112809864A (en) * | 2021-01-12 | 2021-05-18 | 广州大学 | Flame-retardant wood and preparation method and application thereof |
| CN115091570A (en) * | 2022-07-19 | 2022-09-23 | 北京林业大学 | Low-temperature heat treatment wood catalyzed by Lewis acid and manufacturing method thereof |
| CN115609717A (en) * | 2022-09-30 | 2023-01-17 | 广东永盛消防器材有限公司 | Method for manufacturing composite wooden fireproof door |
| WO2023052815A1 (en) * | 2021-09-29 | 2023-04-06 | Scuola universitaria professionale della Svizzera italiana (SUPSI) | Method for treating a porous substrate, in particular a wooden substrate |
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| CN103265051A (en) * | 2013-05-16 | 2013-08-28 | 中南林业科技大学 | Method for in situ generating mesoporous molecular sieve precursors in wood material |
| CN103265051B (en) * | 2013-05-16 | 2015-01-14 | 中南林业科技大学 | Method for in situ generating mesoporous molecular sieve precursors in wood material |
| CN105881664A (en) * | 2014-09-22 | 2016-08-24 | 廖树汉 | Anti-ant anti-water-soaking fire-proof woody plywood |
| CN105881666A (en) * | 2014-10-09 | 2016-08-24 | 廖树汉 | Insect-and-ant-bite-prevention inflaming retarding water resistant solid wood clamping plate |
| CN105479821A (en) * | 2014-10-10 | 2016-04-13 | 廖树汉 | Wood clamping pipe capable of resisting insect and ant, resisting flame and resisting water |
| CN105881988A (en) * | 2014-10-10 | 2016-08-24 | 廖树汉 | Water and fire resistant pipe with clamped wood for preventing insects and ants |
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| CN107127847B (en) * | 2017-04-27 | 2019-07-23 | 广西烽盛科技有限公司 | A kind of fireproof treatment method of timber |
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| CN107009468A (en) * | 2017-05-12 | 2017-08-04 | 阜南县腾祥工艺品有限公司 | A kind of method that wooden mat makes |
| CN107009471A (en) * | 2017-05-12 | 2017-08-04 | 阜南县腾祥工艺品有限公司 | A kind of preparation method of wooden scoop |
| US11993696B2 (en) * | 2017-05-26 | 2024-05-28 | Nichia Corporation | Modified fibrous wollastonite and method of producing the same |
| US20180340051A1 (en) * | 2017-05-26 | 2018-11-29 | Nichia Corporation | Modified fibrous wollastonite and method of producing the same |
| CN108425285A (en) * | 2018-05-14 | 2018-08-21 | 绵阳朴艺新材料有限公司 | Wood skin wallpaper with flame retarding function and preparation method thereof |
| CN108425285B (en) * | 2018-05-14 | 2023-06-23 | 绵阳朴艺新材料有限公司 | Preparation method of veneer wallpaper with flame retardant function |
| CN110757605A (en) * | 2019-09-29 | 2020-02-07 | 中南林业科技大学 | Method for modifying artificial forest wood by phenol-aldehyde impregnation |
| CN110757605B (en) * | 2019-09-29 | 2021-04-30 | 中南林业科技大学 | Method for modifying artificial forest wood by phenol-aldehyde impregnation |
| CN110497493A (en) * | 2019-09-29 | 2019-11-26 | 中南林业科技大学 | The method of organic impregnation modified artificial forest wood |
| CN110900770A (en) * | 2019-11-15 | 2020-03-24 | 郑州赋安防火门有限公司 | Preparation method of wooden fireproof door and wooden fireproof door |
| CN112809864A (en) * | 2021-01-12 | 2021-05-18 | 广州大学 | Flame-retardant wood and preparation method and application thereof |
| WO2023052815A1 (en) * | 2021-09-29 | 2023-04-06 | Scuola universitaria professionale della Svizzera italiana (SUPSI) | Method for treating a porous substrate, in particular a wooden substrate |
| CN115091570A (en) * | 2022-07-19 | 2022-09-23 | 北京林业大学 | Low-temperature heat treatment wood catalyzed by Lewis acid and manufacturing method thereof |
| CN115609717A (en) * | 2022-09-30 | 2023-01-17 | 广东永盛消防器材有限公司 | Method for manufacturing composite wooden fireproof door |
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Application publication date: 20120801 |