CN106673027A - Preparation and synthesis method of hexagonal flaky magnesium hydroxide fire retardant - Google Patents
Preparation and synthesis method of hexagonal flaky magnesium hydroxide fire retardant Download PDFInfo
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- CN106673027A CN106673027A CN201611256518.7A CN201611256518A CN106673027A CN 106673027 A CN106673027 A CN 106673027A CN 201611256518 A CN201611256518 A CN 201611256518A CN 106673027 A CN106673027 A CN 106673027A
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- magnesium hydroxide
- fire retardant
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/14—Magnesium hydroxide
- C01F5/22—Magnesium hydroxide from magnesium compounds with alkali hydroxides or alkaline- earth oxides or hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/14—Magnesium hydroxide
- C01F5/20—Magnesium hydroxide by precipitation from solutions of magnesium salts with ammonia
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
Abstract
The invention provides a preparation and synthesis method of hexagonal flaky magnesium hydroxide fire retardant, and relates to the field of material chemistry. The preparation and synthesis method comprises the following steps of adding a magnesium salt solution and a crystal-directing agent in a reaction vessel; uniformly stirring under the condition that the temperature is 30 to 50 DEG C, and dropwise adding an inorganic base solution in the reaction vessel under the condition that the temperature is 30 to 50 DEG C; carrying out ultrasonic oscillation on reaction slurry for 20 to 30 minutes after reacting completely, and transferring the reaction slurry to a high-pressure reaction kettle; adding absolute ethyl alcohol; carrying out hydrothermal reaction, wherein the reaction temperature is 180 to 200 DEG C, and the reaction time is 24 to 48 hours; finally carrying out filter pressing, water washing, alcohol washing and drying, thus obtaining a magnesium hydroxide product. According to the preparation and synthesis method of the hexagonal flaky magnesium hydroxide fire retardant, provided by the invention, the hexagonal flaky magnesium hydroxide fire retardant is in a hexagonal flaky and monodispersed state due to the addition of the crystal-directing agent; compared with literatures and other patents, the hexagonal flaky magnesium hydroxide fire retardant has the characteristics that the morphology is more stable, the particle size is more uniform, and the like.
Description
Technical field
The present invention relates to technical field of material chemistry, more particularly to a kind of preparation synthesis side of hexagonal plate magnesium hydroxide fire retardant
Method.
Background technology
Due to synthesizing in recent years, macromolecular material quickly grows and environmental consciousness strengthens, and the usage amount of inorganic combustion inhibitor is not
It is disconnected to increase.Magnesium hydroxide is a kind of efficient inorganic combustion inhibitor, and it has, and decomposition temperature is higher, heat stability is higher, nontoxic, nothing
The features such as cigarette, be a kind of fire retardant of environmental type, and this meets contemporary, low toxicity non-halogen to fire retardant, the need of suppression fuming
Ask, while it can be cooperateed with the fire retardant such as Firebrake ZB, aluminium hydroxide, APP using, its addition can be reduced, make to add
Plus the polymeric material after fire retardant mechanical performance itself is improved；And comparatively, China has abundant magnesium salt money
Source, this provides the foundation for the extensive application of flame retardant of magnesium hydroxide.
The thing that pattern, size and the dispersion that the premium properties of flame retardant of magnesium hydroxide has from its crystal is determined
Physicochemical property.The magnesium hydroxide crystal of laminated structure due to special structure, mechanical performance and dispersion, in thermoplasticity high score
With filling and the fire-retardant function of halogen in son and fibrous material, and the burning initial temperature of macromolecular material can be improved, be increased
Thermal-stable.Therefore, the magnesium hydroxide of sheet-like morphology will become the theme of magnesium hydroxide flame retardant material, prepare hydroxide flake
One of most promising direction in the current preparation high-quality fire retardant of magnesium.
Patent (patent No. 201110091664.X, patent name：The preparation side of single dispersing flake magnesium hydroxide fire retardant
Method) disclose a kind of preparation method of single dispersing flake magnesium hydroxide fire retardant, the preparation method that it is adopted for：
(1) soluble magnesium salt is configured to into solution, magnesium ion concentration is between 4mol/l~0.5mol/l；
(2) aqueous slkali is prepared, hydroxide ion concentration is between 8mol/l~0.5mol/l；
(3) under the conditions of being 1500~4000rpm in normal pressure, 25~60 DEG C of reaction temperature, stir speed (S.S.), by 2 times of molal quantity
Slowly at the uniform velocity it is added in magnesium salt solution in the solution of the hydroxide ion of magnesium ion；
(4) slip is transferred in autoclave carries out hydro-thermal reaction, and coolant-temperature gage is 100~200 DEG C, the response time 1
~6h, stir speed (S.S.) is 300~700rpm；
(5) filter, wash, the product after washing is obtained pattern for hexagonal plate in 100~160 DEG C of 4~6h of drying
Or disc-shaped, flame retardant of magnesium hydroxide of the particle diameter in 200~500nm.
Although the preparation method can obtain flake magnesium hydroxide fire retardant, the granularity of flake magnesium hydroxide is uncontrollable,
Dispersibility is undesirable, and the flake magnesium hydroxide produced is irregular lamellar or disc-shaped, and the sheet-like state of magnesium hydroxide is not
Controllable, stable appearance is bad；Relative to disc-shaped, the magnesium hydroxide crystalline state of hexagonal plate is more preferable, with relatively low table
Face polarity and surface energy, the surface energy for making magnesium hydroxide more levels off to the surface energy of polymer, therefore the hydrogen-oxygen of hexagonal plate
Change magnesium more preferable with the compatibility of plastics and resin Polymer material, dispersibility, thus compared to the irregular lamellar of pattern, six
Angle flake magnesium hydroxide improves the flexing ability and ductility of material while macromolecular material fire resistance is improved, so as to carry
The mechanical property of high macromolecular material.The magnesium hydroxide that the present invention is prepared for morphology controllable hexagonal plate, granularity 2~
3um, and even particle size distribution and controllable, meet the requirement in market.
The content of the invention
It is an object of the invention to provide a kind of preparation synthetic method of hexagonal plate magnesium hydroxide fire retardant, with solution
State technical problem.
The technical problem to be solved employs the following technical solutions to realize：
A kind of preparation synthetic method of hexagonal plate magnesium hydroxide fire retardant, it is characterised in that step is：
Magnesium salt solution, crystal-directing-agent are added into reaction vessel, magnesium ion concentration scope is 0.05-6mol/L, is crystallized
The concentration range of directed agents is 7.2 × 10-4-7.2×10-2G/L, stirs under the conditions of 30-50 DEG C, in the temperature conditionss
Lower inorganic alkali solution to be dropped in reaction vessel with constant speed, inorganic alkali solution concentration range is 2.0-8.0mol/L；
After question response is complete, reaction paste is carried out into the sonic oscillation of 20-30min, be then transferred in autoclave, add quality
Fraction is the ethanol of 80%-95%, and addition 5%-20% of the total volume carries out hydro-thermal reaction, and hydrothermal temperature is
150-220 DEG C, the response time is 12-72h；Eventually pass filter pressing, washing, alcohol to wash, dry magnesium hydroxide products are obtained.
It is 1-50L/min that the inorganic alkali solution drops to the constant rate of speed in reaction vessel.
The magnesium salt solution is at least including the aqueous solution of magnesium chloride, magnesium nitrate or magnesium sulfate.
The crystal-directing-agent is at least one in organic base, crystal seed or surfactant.
The organic base is selected from triethylamine, triethylene diamine, pyridine, tetramethylethylenediamine, carbamide, potassium tert-butoxide, tertiary fourth
One kind in sodium alkoxide, n-BuLi, N-methylmorpholine, DBU, DBN, DMAP, TMG, KHMDS, NaHMDS, LDA.
The crystal seed is selected from Mg (OH)2、Al(OH)3、Al2O3、TiO2、SnO2、SnO、ZnO、Ca(OH)2、CaSO4、CaCO3、
Ba(OH)2、BaSO4、BaCO3、ZrO2、V2O5、Cr2O3、Fe2O3、Cu(OH)2、SiO2、Na2SiO3、Na2Al2O4、Na2Si2AlO6In
One kind.
Described surfactant is nonionic surfactant, including APEO, PEG-200, PEG-300, PEG-
400、PEG-600、PEG-800、PEG-1000、PEG-1500、PEG-2000、PEG-3000、PEG-4000、PEG-6000、
One or more in PEG-8000.
Described inorganic alkali solution is at least including the aqueous solution of sodium hydroxide, potassium hydroxide or ammonia.
From the purpose of one or more crystal-directing-agents in the preparation synthetic method of hexagonal plate magnesium hydroxide fire retardant
It is the pattern for controlling magnesium hydroxide.First, Mg2+And OH-Interact and generate Mg (OH)4 2-Cluster.Then under hydrothermal conditions
Form small Mg (OH)2Structure crystal grain.The surfactant of the nonionic of each unit is connected to hydrophilic functional groups, Mg2+
And OH-Mg (OH) can be formed in the presence of Coulomb force on the surface of crystal seed2Structure crystal grain.With the prolongation of the hydro-thermal reaction time,
Small Mg (OH)2Structure crystal grain can merging growth form larger crystal, in crystallography can by calculate method come
The stable pattern of prediction crystal, being calculated according to periodical chain theory analysis and formula can obtain the most stable of crystal knot of magnesium hydroxide
Structure is hexagonal plate.In addition, during structure crystalline substance particle growth forms hexagonal plate, the surfactant of addition is used as stable
Agent and structure directing agent, by the control that crystallization process is stable.At the same time with the Mg (OH) of surfactant fluid2Structure crystal grain
With higher surface free energy, it provides powerful driving force for particle crystallization, and under conditions of extraneous High Temperature High Pressure, structure is brilliant
Particle may eventually form the controllable hexagonal plate structure of Stability Analysis of Structures, size.
The invention has the beneficial effects as follows：
(1) present invention prepared by magnesium hydroxide flame retardant material because add crystal-directing-agent present hexagonal plate, single point
Scattered state, stable appearance is good.
(2) the magnesium hydroxide flame retardant material prepared by the present invention is because adding the species of crystal-directing-agent and matching somebody with somebody for every kind of composition
Can change its granule size than difference.
(3) compatibility of magnesium hydroxide and the plastics of the hexagonal plate prepared by the present invention and resin Polymer material,
More preferably, thus compared to the irregular lamellar of pattern, hexagonal plate magnesium hydroxide is improving macromolecular material anti-flammability to dispersibility
The flexing ability and ductility of material are improved while energy, so as to improve the mechanical property of macromolecular material.
(3) for method provided by the present invention and existing technology, its technology is comparatively relatively simple, will to equipment
Ask not high, be adapted to industrialized production.
Description of the drawings
Fig. 1 is the SEM shape appearance figures of magnesium hydroxide flame retardant material prepared by the present invention addition crystal-directing-agent A1 and B1；
Fig. 2 is the SEM shape appearance figures of magnesium hydroxide flame retardant material prepared by the present invention addition crystal-directing-agent A2 and B2；
Fig. 3 is the SEM shape appearance figures that the present invention is not added with magnesium hydroxide flame retardant material prepared by crystal-directing-agent；
Fig. 4 is the DTG-TG figures of magnesium hydroxide flame retardant material prepared by present invention addition crystal-directing-agent；
Fig. 5 is the XRD figure of magnesium hydroxide flame retardant material prepared by present invention addition crystal-directing-agent.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Specific embodiments and the drawings are closed, the present invention is expanded on further, but following embodiments are only the preferred embodiments of the present invention, not
All.Based on the embodiment in embodiment, those skilled in the art are obtained on the premise of creative work is not made
Other embodiments, belong to protection scope of the present invention.
The specific embodiment of the present invention is described below in conjunction with the accompanying drawings.
Embodiment 1
Magnesium salt solution (concentration range is 1mol/L), crystal-directing-agent A1 and B1 are added into reaction vessel, and (concentration model is
7.2 × 10-3g/L), stir under the conditions of 35 DEG C, by inorganic alkali solution, (concentration range is 4mol/ under the temperature conditionss
L) dropped in reaction vessel with constant speed (speed range is as 15L/min), carry out reaction paste after question response is complete
Volume is transferred to after the sonic oscillation of 20min in 1m3 autoclaves, addition dehydrated alcohol be (mass fraction 80%-95%'s
Ethanol, addition is of the total volume 6%), carries out hydrothermal temperature for 180 DEG C, and the response time is 40h, eventually pass filter pressing,
Washing, alcohol are washed, dry prepared magnesium hydroxide products, the test result such as accompanying drawing 1, the and of accompanying drawing 4 of SEM, DTG-TG and XRD of product
Shown in accompanying drawing 5.
Embodiment 2
Magnesium salt solution (concentration range is 3mol/L), crystal-directing-agent A2 and B2 are added into reaction vessel, and (concentration model is
3.5 × 10-2g/L), stir under the conditions of 46 DEG C, by inorganic alkali solution, (concentration range is under the temperature conditionss
5.5mol/L) dropped in reaction vessel with constant speed (speed range is as 25L/min), by reaction slurry after question response is complete
Material carries out being transferred to after the sonic oscillation of 26min volume in 1m3 autoclaves, to add dehydrated alcohol (mass fraction 80%-
95% ethanol, addition is of the total volume 11%), carries out hydrothermal temperature for 200 DEG C, and the response time is 48h, most after Jing
Cross filter pressing, washing, alcohol to wash, dry magnesium hydroxide products are obtained, the SEM test results of product are as shown in Figure 2.
Embodiment 3
Magnesium salt solution (concentration range is 2.6mol/L) is added into reaction vessel, is stirred under the conditions of 48 DEG C, in
Inorganic alkali solution (concentration range is 5.8mol/L) is dripped with constant speed (speed range is as 31L/min) under the temperature conditionss
Add in reaction vessel, volume is transferred to after the sonic oscillation that reaction paste is carried out 28min after question response is complete for 1m3 high pressure
In reactor, (ethanol of mass fraction 80%-95%, addition is of the total volume 17%), carries out hydro-thermal to add dehydrated alcohol
Reaction temperature is 190 DEG C, and the response time is 38h, eventually passes filter pressing, washing, alcohol and washes, dry prepared magnesium hydroxide products, product
The test result of the SEM of product such as accompanying drawing 3.
From accompanying drawing 1, the made magnesium hydroxide flame retardant material of the system of present invention addition crystal-directing-agent be single dispersing,
The granule of hexagonal plate, its granularity is in 2-4um, wherein the crystal-directing-agent for being added is respectively the one kind in A and B.
From accompanying drawing 2, the made magnesium hydroxide flame retardant material of the system of present invention addition crystal-directing-agent be single dispersing,
The granule of hexagonal plate, in 2-4um, granule size distribution is more uniform, and magnesium hydroxide crystallization degree is preferable, wherein institute for its granularity
The crystal-directing-agent of addition is respectively the one kind in A and B.
From accompanying drawing 3, the system products obtained therefrom of crystal-directing-agent is not added with the present invention, there is certain agglomeration,
Product pattern is irregular, and particle size range is distributed more widely.
From accompanying drawing 4, the magnesium hydroxide flame retardant material prepared by the system of present invention addition crystal-directing-agent is at 320 DEG C
Start weightlessness suddenly when the above, it is almost no longer weightless when temperature is 410 DEG C, it is total weightless up to 30%.The beginning of the sample
The more typical fire retardant of decomposition temperature is high, illustrates the better heat stability of the magnesium hydroxide.
From accompanying drawing 5, the X- of the magnesium hydroxide flame retardant material prepared by the system of present invention addition crystal-directing-agent is penetrated
Line diffraction pattern, all of diffraction maximum position is consistent with the magnesium hydroxide of JCPDS 84-2164 in collection of illustrative plates, is not detected by other
Impure impurity.
Ultimate principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
It should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description is only the present invention to personnel
Preference, be not intended to limit the present invention, without departing from the spirit and scope of the present invention, the present invention also have it is various
Changes and improvements, these changes and improvements are both fallen within scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (8)
1. a kind of preparation synthetic method of hexagonal plate magnesium hydroxide fire retardant, it is characterised in that step is：
Magnesium salt solution, crystal-directing-agent are added into reaction vessel, magnesium ion concentration scope is 0.05-6mol/L, and crystallization is oriented to
The concentration range of agent is 7.2 × 10-4-7.2×10-2G/L, stirs under the conditions of 30-50 DEG C, will under the temperature conditionss
Inorganic alkali solution is dropped in reaction vessel with constant speed, and inorganic alkali solution concentration range is 2.0-8.0mol/L；Treat anti-
After answering completely, reaction paste is carried out into the sonic oscillation of 20-30min, be then transferred in autoclave, add mass fraction
For the ethanol of 80%-95%, addition 5%-20% of the total volume, hydro-thermal reaction is carried out, hydrothermal temperature is 150-220
DEG C, the response time is 12-72h；Eventually pass filter pressing, washing, alcohol to wash, dry magnesium hydroxide products are obtained.
2. the preparation synthetic method of hexagonal plate magnesium hydroxide fire retardant according to claim 1, it is characterised in that：It is described
It is 1-50L/min that inorganic alkali solution drops to the constant rate of speed in reaction vessel.
3. the preparation synthetic method of hexagonal plate magnesium hydroxide fire retardant according to claim 1, it is characterised in that：It is described
Magnesium salt solution is at least including the aqueous solution of magnesium chloride, magnesium nitrate or magnesium sulfate.
4. the preparation synthetic method of hexagonal plate magnesium hydroxide fire retardant according to claim 1, it is characterised in that：It is described
Crystal-directing-agent is at least one in organic base, crystal seed or surfactant.
5. the preparation synthetic method of hexagonal plate magnesium hydroxide fire retardant according to claim 4, it is characterised in that：It is described
Organic base is selected from triethylamine, triethylene diamine, pyridine, tetramethylethylenediamine, carbamide, potassium tert-butoxide, sodium tert-butoxide, normal-butyl
One kind in lithium, N-methylmorpholine, DBU, DBN, DMAP, TMG, KHMDS, NaHMDS, LDA.
6. the preparation synthetic method of hexagonal plate magnesium hydroxide fire retardant according to claim 4, it is characterised in that：It is described
Crystal seed is selected from Mg (OH)2、Al(OH)3、Al2O3、TiO2、SnO2、SnO、ZnO、Ca(OH)2、CaSO4、CaCO3、Ba(OH)2、
BaSO4、BaCO3、ZrO2、V2O5、Cr2O3、Fe2O3、Cu(OH)2、SiO2、Na2SiO3、Na2Al2O4、Na2Si2AlO6In one kind.
7. the preparation synthetic method of hexagonal plate magnesium hydroxide fire retardant according to claim 4, it is characterised in that：It is described
Surfactant be nonionic surfactant, including APEO, PEG-200, PEG-300, PEG-400, PEG-600,
In PEG-800, PEG-1000, PEG-1500, PEG-2000, PEG-3000, PEG-4000, PEG-6000, PEG-8000 one
Plant or several.
8. the preparation synthetic method of hexagonal plate magnesium hydroxide fire retardant according to claim 1, it is characterised in that：It is described
Inorganic alkali solution at least including sodium hydroxide, potassium hydroxide or ammonia aqueous solution.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108529654A (en) * | 2018-05-07 | 2018-09-14 | 天津君瑞和科技有限公司 | A method of with making from brine for micro/nano level magnesium hydroxide |
| CN110980780A (en) * | 2019-12-21 | 2020-04-10 | 聊城大学 | Preparation method of flaky magnesium hydroxide flame retardant |
| CN111410786A (en) * | 2020-03-25 | 2020-07-14 | 深圳市沃尔核材股份有限公司 | Halogen-free high-flame-retardant oil-resistant thermal shrinkage identification tube and production method thereof |
| CN113072082A (en) * | 2021-03-31 | 2021-07-06 | 珠海格力新材料有限公司 | Preparation method and application of magnesium oxide flame retardant |
| CN113479915A (en) * | 2021-07-13 | 2021-10-08 | 北京化工大学 | Preparation method of crystal face oriented growth magnesium hydroxide |
| CN113697831A (en) * | 2021-09-29 | 2021-11-26 | 安徽大学绿色产业创新研究院 | Method for purifying and removing magnesium from industrial wastewater with high sodium-magnesium ratio and preparing magnesium hydroxide fire retardant |
| CN114804164A (en) * | 2022-06-08 | 2022-07-29 | 天津科技大学 | Preparation method and application of hexagonal flaky magnesium hydroxide |
| CN115417436A (en) * | 2022-09-20 | 2022-12-02 | 西部金属材料股份有限公司 | Preparation method of two-dimensional magnesium hydroxide nanosheet |
| CN116835616A (en) * | 2023-08-30 | 2023-10-03 | 山东艾科高分子材料有限公司 | Method for preparing high-dispersion hexagonal flaky magnesium hydroxide by high-activity light-burned magnesium oxide through one-step hydrothermal method |
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| WO2000035808A1 (en) * | 1998-12-14 | 2000-06-22 | Kyowa Chemical Industry Co., Ltd. | Magnesium hydroxide particles, process for producing the same, and resin composition containing the particles |
| CN1982410A (en) * | 2005-12-13 | 2007-06-20 | 中北大学分校 | Production of high-dispersion flake nano-magnesium hydrate fire retardant |
| CN101269827A (en) * | 2008-04-02 | 2008-09-24 | 浙江工业大学 | Method for preparing high-dispersion magnesium hydroxide combustion inhibitor with one-step hydrothermal method |
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| US4695445A (en) * | 1985-08-14 | 1987-09-22 | Asahi Glass Company Ltd. | Magnesium hydroxide and process for its production |
| WO2000035808A1 (en) * | 1998-12-14 | 2000-06-22 | Kyowa Chemical Industry Co., Ltd. | Magnesium hydroxide particles, process for producing the same, and resin composition containing the particles |
| CN1982410A (en) * | 2005-12-13 | 2007-06-20 | 中北大学分校 | Production of high-dispersion flake nano-magnesium hydrate fire retardant |
| CN101269827A (en) * | 2008-04-02 | 2008-09-24 | 浙江工业大学 | Method for preparing high-dispersion magnesium hydroxide combustion inhibitor with one-step hydrothermal method |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108529654A (en) * | 2018-05-07 | 2018-09-14 | 天津君瑞和科技有限公司 | A method of with making from brine for micro/nano level magnesium hydroxide |
| CN110980780B (en) * | 2019-12-21 | 2022-06-07 | 聊城大学 | Preparation method of flaky magnesium hydroxide flame retardant |
| CN110980780A (en) * | 2019-12-21 | 2020-04-10 | 聊城大学 | Preparation method of flaky magnesium hydroxide flame retardant |
| CN111410786B (en) * | 2020-03-25 | 2023-07-07 | 深圳市沃尔核材股份有限公司 | Halogen-free high-flame-retardant oil-resistant heat-shrinkable identification tube and production method thereof |
| CN111410786A (en) * | 2020-03-25 | 2020-07-14 | 深圳市沃尔核材股份有限公司 | Halogen-free high-flame-retardant oil-resistant thermal shrinkage identification tube and production method thereof |
| CN113072082A (en) * | 2021-03-31 | 2021-07-06 | 珠海格力新材料有限公司 | Preparation method and application of magnesium oxide flame retardant |
| CN113479915A (en) * | 2021-07-13 | 2021-10-08 | 北京化工大学 | Preparation method of crystal face oriented growth magnesium hydroxide |
| CN113697831A (en) * | 2021-09-29 | 2021-11-26 | 安徽大学绿色产业创新研究院 | Method for purifying and removing magnesium from industrial wastewater with high sodium-magnesium ratio and preparing magnesium hydroxide fire retardant |
| CN114804164A (en) * | 2022-06-08 | 2022-07-29 | 天津科技大学 | Preparation method and application of hexagonal flaky magnesium hydroxide |
| CN114804164B (en) * | 2022-06-08 | 2023-11-10 | 天津科技大学 | Preparation method and application of hexagonal flaky magnesium hydroxide |
| CN115417436A (en) * | 2022-09-20 | 2022-12-02 | 西部金属材料股份有限公司 | Preparation method of two-dimensional magnesium hydroxide nanosheet |
| CN115417436B (en) * | 2022-09-20 | 2023-08-11 | 西部金属材料股份有限公司 | Preparation method of two-dimensional magnesium hydroxide nano-sheet |
| CN116835616A (en) * | 2023-08-30 | 2023-10-03 | 山东艾科高分子材料有限公司 | Method for preparing high-dispersion hexagonal flaky magnesium hydroxide by high-activity light-burned magnesium oxide through one-step hydrothermal method |
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