CN105885459A - Environment-friendly flame-retardant fiber board and method for preparing same - Google Patents
Environment-friendly flame-retardant fiber board and method for preparing same Download PDFInfo
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- CN105885459A CN105885459A CN201610277682.XA CN201610277682A CN105885459A CN 105885459 A CN105885459 A CN 105885459A CN 201610277682 A CN201610277682 A CN 201610277682A CN 105885459 A CN105885459 A CN 105885459A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/12—Moulding of mats from fibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34922—Melamine; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
-
- 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
Abstract
The invention relates to an environment-friendly flame-retardant fiber board and a method for preparing the same. By the aid of the environment-friendly flame-retardant fiber board and the method, problems of heavy weight, high cost, poor quality and environmental friendliness and short service life of existing boards can be solved effectively. The method includes cleaning, drying and smashing waste fibers; soaking the waste fibers in NaOH solution with the mass concentration of 2% for 24 h; washing the waste fibers by the aid of clear water; dissociating the waste fibers by the aid of a fiber dissociation device at the speed of 5000 r/min; washing the waste fibers by the aid of clear water until NaOH is thoroughly washed out to obtain treated wet fibers; evenly mixing aluminum hydroxide, ammonium polyphosphate, melamine and zinc borate with one another to obtain flame retardants; mixing the treated wet fibers with the flame retardants under stirring conditions to obtain uniform board slurry; molding the board slurry in a mold and carrying out cold pressing and hot pressing to obtain the environment-friendly flame-retardant fiber board. The environment-friendly flame-retardant fiber board and the method have the advantages that raw materials for the environment-friendly flame-retardant fiber board are abundant, waste can be utilized, accordingly, resources can be saved, environmental pollution is reduced, the method is simple and is low in cost and high in efficiency, the environment-friendly flame-retardant fiber board which is a product is high in quality and long in service life, and the environment-friendly flame-retardant fiber board and the method have huge economic and social benefits.
Description
Technical field
The present invention relates to sheet material, particularly a kind of environment-friendly flame-retarding fiberboard and preparation method thereof.
Background technology
Along with the raising of safety consciousness, people are more and more higher to the requirement of flame-proof sheet material, preparing flame retardant fibre board sheet material to be considered type, consider fire retardant pressure method and fire retardant types again.The most currently used sheet material type:
Mainly having cement plate, fiber cement board, plasterboard etc., they mainly have a following deficiency:
(1) sheet material is heavier.
(2) anti-folding, shock resistance and toughness are poor.
(3) cost is relatively high.
Applying method and fire retardant types:
In prior art, flame-proof sheet material application is the most generally and widely additive process.The fire retardant types selected mainly has boron, N-P, N-P-boron, expansion type flame retardant etc., and wherein the N-P-boron in dilatancy is the most optimal.The N selected has tripolycyanamide, dicyandiamide etc., and the P of selection has APP, phosphate, phosphoric acid ester etc., and boron has boric acid, Borax, Firebrake ZB etc., and their compounding has the disadvantage that
(1) increase along with the addition of fire retardant, sheet material mechanical properties decrease.
(2) fire resistance and sheet material mechanical property are reverse effect.
(3) organic fire-retardant poor stability, easily decomposes loss in sheeting process, and of poor quality, using effect is poor, and the life-span is short.
Therefore, the improvement in sheet material and preparation method and innovate imperative.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the purpose of the present invention is just to provide a kind of environment-friendly flame-retarding fiberboard and preparation method thereof, can effectively solve existing panel weight big, and cost is high, and of poor quality, the life-span is short, the problem of feature of environmental protection difference.
The technical scheme that the present invention solves is that this environment-friendly flame-retarding fiberboard is to include waste and old fibre and fire retardant, and waste and old fibre is 100 20-30 with the mass ratio of fire retardant；Described fire retardant includes by mass percent: aluminium hydroxide 20-40%, APP 30-50%, tripolycyanamide 10-25% and Firebrake ZB 5-20%；
Described waste and old fibre selects one or more the combination in old newsprint, litter decoration, corn straw, Wheat Straw, cotton straw, Caulis et Folium Oryzae, bagasse and waste textile.
Its preparation method is:
(1) process of waste and old fibre
Cleaned by waste and old fibre, system is done, pulverize, insert mass concentration 2% NaOH solution in carry out impregnate 24h, wash with clear water, dissociate with fiber dissociation device under 5000r/min, then wash with clear water, make NaOH completely by eccysis, wet fiber after must processing, and calculate the content of waste and old fibre in wet fiber；
(2) preparation fire retardant
By by mass percent: aluminium hydroxide (ATH) 20-40%, APP (APP) 30-50%, tripolycyanamide 10-25% and Firebrake ZB 5-20% mixing are configured to fire retardant；
(3) mixed pulp
Waste and old fibre is 100 20-30 with the mass ratio of fire retardant, and the wet fiber after step (1) being processed is under agitation together with fire retardant mixture, and mixing speed is 200-400r/min, time 30-60min, uniformly plate slurry；
(4) making sheet
Plate slurry step (3) made loads die for molding, through colding pressing, hot pressing standby become environment-friendly flame-retarding fiberboard, wherein, described pressure of colding pressing is 4-6MPa, room temperature (room temperature 18-25 DEG C)；Described hot pressing pressure is 4-6MPa, temperature 120-180 DEG C.
To illustrate that, with the mass ratio of fire retardant, the waste and old fibre that the present invention is given refers to that waste and old fibre is cleaned, made the waste and old fibre after doing, it it not the wet fiber after base extraction, if with the wet fiber after base extraction, moisture content calculating to be carried out, calculate the consumption between wet fiber and fire retardant again, if required board quality is 300g, choose that fire retardant addition is fiber total amount 20%, then the amount of required fiber and fire retardant is respectively 250g and 50g(by the different proportion preparation 50g fire retardant concentrating fire retardant)；If fiber moisture is 50%, then needed for the wet fiber that processed should be 500g, the like, do not enumerate.
Abundant raw materials of the present invention, twice laid, economize on resources, reduce environmental pollution, preparation method is simple, low cost, and efficiency is high, good product quality, service life is long, and economic and social benefit is huge, compared with prior art, there is the innovation of raw material (waste and old fibre) and fire retardant combine the flame-retardant fiber plate worked it out, there is advantage highlighted below:
(1) utilize waste and old fibre for raw material, both saved resource, reduced cost, and protected again environment so that resource has obtained high efficiente callback recycling.
(2) low cost, source are extensively.
(3) fibre board light weight, anti-folding, shock resistance and toughness are preferable, and service life is long, increases the service life more than 1 times；
Using aluminium hydroxide-N-P-boron fire retardant preservative compound flame retardant, its advantage is as follows:
(1) fire retardant environmental protection, nontoxic.
(2) though N, P and the fire-retardant synergistic of boron, but all can make sheet material mechanical properties decrease with the increase of its addition, and the interpolation of aluminium hydroxide alleviates the decline of its mechanical property.On the basis of improving fire resistance, the mechanical property of sheet material has declined, but amplitude is the least, is basically unchanged.
(3) the fire retardant Heat stability is good selected, can be high temperature resistant in fibre board hot pressing, it will not be made to decompose and cause the loss of fire retardant.
(4) low cost, APP is expensive, and aluminium hydroxide price is very cheap, and the addition of partial aluminum hydroxide makes APP consumption reduce, and reduces cost.
Detailed description of the invention
Below in conjunction with embodiment, the detailed description of the invention of the present invention is elaborated.
The present invention, in being embodied as, can be given by following example.
Embodiment 1
The present invention is in being embodied as, this environment-friendly flame-retarding fiberboard is made up of waste and old fibre and fire retardant, waste and old fibre is 100 27 with the mass ratio of fire retardant, and described fire retardant is by mass percent: aluminium hydroxide 28%, APP 36%, tripolycyanamide 20% and Firebrake ZB 16% mixing are made；
Described waste and old fibre is old newsprint, litter decoration, corn straw, Wheat Straw, cotton straw, Caulis et Folium Oryzae, bagasse and one or more mixing of waste textile.
Its preparation method is:
(1) process of waste and old fibre
Cleaned by waste and old fibre, system is done, pulverize, insert mass concentration 2% NaOH solution in carry out impregnate 24h, wash with clear water, dissociate with fiber dissociation device under 5000r/min, then wash with clear water, make NaOH completely by eccysis, wet fiber after must processing, and calculate the content of waste and old fibre in wet fiber；
To illustrate that, with the mass ratio of fire retardant, the waste and old fibre that the embodiment of the present invention is given refers to that waste and old fibre is cleaned, made the waste and old fibre after doing, it it not the wet fiber after base extraction, if with the wet fiber after base extraction, moisture content calculating to be carried out, then calculate the consumption between wet fiber and fire retardant.If required board quality is 300g, choose that fire retardant addition is fiber total amount 20%, then the amount of required fiber and fire retardant is respectively 250g and 50g(by the different proportion preparation 50g fire retardant concentrating fire retardant)；If fiber moisture be 50%(i.e., the content accounting of waste and old fibre is 50%), then needed for the wet fiber that processed should be 500g, the like, do not enumerate.
(2) preparation fire retardant
By by mass percent: aluminium hydroxide 28%, APP 36%, tripolycyanamide 20% and Firebrake ZB 16% mixing are configured to fire retardant；
(3) mixed pulp
Waste and old fibre is 100 27 with the mass ratio of fire retardant, and the wet fiber after step (1) being processed is under agitation together with fire retardant mixture, and mixing speed is 200-400r/min, time 30-60min, uniformly plate slurry；
(4) making sheet
Plate slurry step (3) made loads die for molding, through colding pressing, hot pressing standby become environment-friendly flame-retarding fiberboard, wherein, described pressure of colding pressing is 4-6MPa, room temperature (room temperature 18-25 DEG C)；Described hot pressing pressure is 4-6MPa, temperature 120-180 DEG C.
Environment-friendly flame-retarding fiberboard prepared by the method be given by embodiment 1, through test on probation, oxygen index (OI) (LOI) may be up to 36, and the internal bond strength of fibre board is 0.86MPa, and MOR is 60MPa, elastic modelling quantity be 5.4MPa, 24h thickness swelling rate be 9.8.
Embodiment 2
The present invention is in being embodied as, and this environment-friendly flame-retarding fiberboard is made up of waste and old fibre and fire retardant, and waste and old fibre is 100 24 with the mass ratio of fire retardant.
Environment-friendly flame-retarding fiberboard manufacturing process:
(1) process of waste and old fibre
The waste and old fibre that will collect is pulverized, and adds 2%NaOH and carries out alkali steeping, washs with clear water, then dissociate further with fiber dissociation device (5000r) after 24h, and carries out again clear water washing and make alkali completely by eccysis, then carries out except water process.Take some to dry, calculate moisture content.
(2) fire retardant addition and preparation
The addition of fire retardant accounts for the 20%-30% of fiber total amount, aluminium hydroxide accounts for the 20%-40% of fire retardant total amount, APP accounts for 30%-50%, tripolycyanamide accounts for 10%-25%, Firebrake ZB accounts for 5%-20%, it is mixed by a certain percentage, stirs with Glass rod so that it is mix homogeneously.Preferably, in described fire retardant, by mass percent, aluminium hydroxide accounts for 28%, APP accounts for 36%, tripolycyanamide accounts for 20%, Firebrake ZB accounts for 16%.
(3) flame treatment of fiber
Require and fire retardant addition according to board quality, calculate quality needed for fiber and fire retardant respectively, because fiber is hygrometric state, can calculate and take the fiber that respective handling is crossed according to fiber moisture, put it in large beaker, and press fire retardant each component ratio preparation fire retardant mix homogeneously, by its with fiber under mechanical agitation, carry out simple physical blending, mixing speed is 200r/min-400r/min, time 30min-60min so that it is uniformly mix with fiber.
(4) preparation of flame retardant fibre board
The above-mentioned fiber that processed is put into mould middle berth is dressed up type, then is prepared as flame retardant fibre board through cold, hot pressure two-step method.Wherein, cold pressing (4-6MPa), and temperature of colding pressing is room temperature, hot pressing (4-6MPa), and hot pressing temperature is (120-180 DEG C), can obtain flame retardant fibre board；The fire resistance of gained sheet material is the highest, and oxygen index (OI) (LOI) may be up to 36, and the internal bond strength of fibre board is 0.86MPa, and MOR is 60MPa, elastic modelling quantity be 5.4MPa, 24h thickness swelling rate be 9.8.
The raw material that the present invention uses is old newsprint, litter decoration, corn straw, Wheat Straw, cotton straw, Caulis et Folium Oryzae, bagasse and waste textile etc., these waste and old fibres not only cause the waste of resource but also pollute environment, as raw material, fibreboard, do not only reach that light weight, anti-folding, bending resistance, good toughness, low cost, source be wide, the purpose of energy-conserving and environment-protective, also achieve the high efficiente callback recycling of waste and old fibre resource, reach the bumper harvests of economic benefit and social benefit.
The fire retardant that the present invention uses is: aluminium hydroxide (ATH), APP (APP), tripolycyanamide and Firebrake ZB, concrete principle: the OH easily and on fiber of the N in APP forms hydrogen bond, make fire retardant be prone to matrix material to combine and dispersion, be mixed into other fire retardant on this basis and compound；Fire-retardant with the gas phase of tripolycyanamide combine so that the condensed phase of APP is fire-retardant, in addition Firebrake ZB press down cigarette synergistic, reach good flame retardant effect.Though reaching good flame retardant effect, but sheet material mechanical property being substantially reduced, cost is the highest.But, the addition of a certain amount of aluminium hydroxide on the basis of ensureing sheet material fire resistance, can alleviate the reduction of fibre board mechanical property so that it is be basically unchanged, and cost is the lowest.
And through on probation on the spot and repeatedly test, all achieve same or like as result, low cost, good product quality, the fire resistance of gained sheet material significantly improves, oxygen index (OI) (LOI) in time being not added with 21 bring up to add after 34-36, the internal bond strength of fibre board is substantially at 0.82-0.96MPa, MOR is substantially at 42-63MPa, elastic modelling quantity is substantially at 3.8-5.8MPa, 24h thickness swelling rate is substantially at 8.2-12.3, mechanical properties decrease amplitude is the least, it is basically unchanged, production cost 40-50% can be reduced, service life can extend more than 1 times, and decrease garbage pollution on the environment, energy-conserving and environment-protective, it is effectively increased use value and commercial value, economic and social benefit is huge.
Claims (5)
1. an environment-friendly flame-retarding fiberboard, it is characterised in that include that waste and old fibre and fire retardant, waste and old fibre are 100 20-30 with the mass ratio of fire retardant；Described fire retardant includes by mass percent: aluminium hydroxide 20-40%, APP 30-50%, tripolycyanamide 10-25% and Firebrake ZB 5-20%；
Described waste and old fibre selects one or more the combination in old newsprint, litter decoration, corn straw, Wheat Straw, cotton straw, Caulis et Folium Oryzae, bagasse and waste textile.
Environment-friendly flame-retarding fiberboard the most according to claim 1, it is characterised in that be made up of waste and old fibre and fire retardant, waste and old fibre is 100 27 with the mass ratio of fire retardant.
Environment-friendly flame-retarding fiberboard the most according to claim 1, it is characterised in that be made up of waste and old fibre and fire retardant, waste and old fibre is 100 24 with the mass ratio of fire retardant；In described fire retardant, by mass percent, aluminium hydroxide accounts for 28%, APP accounts for 36%, tripolycyanamide accounts for 20%, Firebrake ZB accounts for 16%.
4. the preparation method of the arbitrary described environment-friendly flame-retarding fiberboard of claim 1-3, it is characterised in that realized by following steps:
(1) process of waste and old fibre
Cleaned by waste and old fibre, system is done, pulverize, insert mass concentration 2% NaOH solution in carry out impregnate 24h, wash with clear water, dissociate with fiber dissociation device under 5000r/min, then wash with clear water, make NaOH completely by eccysis, wet fiber after must processing, and calculate the content of waste and old fibre in wet fiber；
(2) preparation fire retardant
By by mass percent: aluminium hydroxide 20-40%, APP 30-50%, tripolycyanamide 10-25% and Firebrake ZB 5-20% mixing are configured to fire retardant；
(3) mixed pulp
Waste and old fibre is 100 20-30 with the mass ratio of fire retardant, and the wet fiber after step (1) being processed is under agitation together with fire retardant mixture, and mixing speed is 200-400r/min, time 30-60min, uniformly plate slurry；
(4) making sheet
Plate slurry step (3) made loads die for molding, through colding pressing, hot pressing standby become environment-friendly flame-retarding fiberboard；Wherein, described pressure of colding pressing is 4-6MPa, and temperature is room temperature；Described hot pressing pressure is 4-6MPa, temperature 120-180 DEG C.
The preparation method of environment-friendly flame-retarding fiberboard the most according to claim 4, it is characterised in that realized by following steps:
(1) process of waste and old fibre
Waste and old fibre is cleaned, system dry, pulverize, insert mass concentration 2% NaOH solution in carry out impregnating 24h, wash with clear water, dissociate with fiber dissociation device under 5000r/min, then wash with clear water, make NaOH completely by eccysis, obtain the wet fiber after process；
(2) preparation fire retardant
By by mass percent: aluminium hydroxide 28%, APP 36%, tripolycyanamide 20% and Firebrake ZB 16% mixing are configured to fire retardant；
(3) mixed pulp
Meter waste and old fibre in mass ratio is 100 27 or 100 24 with the mass ratio of fire retardant, and the wet fiber after step (1) being processed is under agitation together with fire retardant mixture, and mixing speed is 200-400r/min, time 30-60min, uniformly plate slurry；
(4) making sheet
Plate slurry step (3) made loads die for molding, through colding pressing, hot pressing standby become environment-friendly flame-retarding fiberboard, wherein, described pressure of colding pressing is 4-6MPa, and temperature is room temperature；Described hot pressing pressure is 4-6MPa, temperature 120-180 DEG C.
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| CN106087597A (en) * | 2016-08-27 | 2016-11-09 | 安阳华森纸业有限责任公司 | The preparation method of flame retardant fibre board |
| CN106638072A (en) * | 2016-10-28 | 2017-05-10 | 河南华禹环保科技有限公司 | Production method of flame-retardant fiber board |
| CN107234704A (en) * | 2017-06-15 | 2017-10-10 | 阜阳市宏桥建材有限公司 | A kind of high intensity density stalk board manufacturing method |
| CN110052476A (en) * | 2019-04-24 | 2019-07-26 | 山东黄河三角洲纺织科技研究院有限公司 | A method of composite board is made using clothing |
| CN110405894A (en) * | 2019-06-20 | 2019-11-05 | 黄仕强 | Waste textile, the method for rice straw processing novel plate and various shells |
| CN114213711A (en) * | 2021-12-14 | 2022-03-22 | 深圳市锦昊辉实业发展有限公司 | Preparation method of halogen-free composite flame retardant, flame-retardant polyolefin and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087597A (en) * | 2016-08-27 | 2016-11-09 | 安阳华森纸业有限责任公司 | The preparation method of flame retardant fibre board |
| CN106638072A (en) * | 2016-10-28 | 2017-05-10 | 河南华禹环保科技有限公司 | Production method of flame-retardant fiber board |
| CN107234704A (en) * | 2017-06-15 | 2017-10-10 | 阜阳市宏桥建材有限公司 | A kind of high intensity density stalk board manufacturing method |
| CN110052476A (en) * | 2019-04-24 | 2019-07-26 | 山东黄河三角洲纺织科技研究院有限公司 | A method of composite board is made using clothing |
| CN110405894A (en) * | 2019-06-20 | 2019-11-05 | 黄仕强 | Waste textile, the method for rice straw processing novel plate and various shells |
| CN114213711A (en) * | 2021-12-14 | 2022-03-22 | 深圳市锦昊辉实业发展有限公司 | Preparation method of halogen-free composite flame retardant, flame-retardant polyolefin and preparation method thereof |
| CN115922860A (en) * | 2022-12-27 | 2023-04-07 | 薪业资源(大连)科技发展有限公司 | Flame-retardant biomass solid powder, production method thereof and flame-retardant plate |
| CN116100645A (en) * | 2022-12-27 | 2023-05-12 | 薪业资源(大连)科技发展有限公司 | Plastic solid powder produced by taking biomass as raw material, production method thereof and molded plate |
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