CN106810910A - A kind of preparation method of modified magnesium hydroxide flame retardant agent - Google Patents
A kind of preparation method of modified magnesium hydroxide flame retardant agent Download PDFInfo
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- CN106810910A CN106810910A CN201510891183.5A CN201510891183A CN106810910A CN 106810910 A CN106810910 A CN 106810910A CN 201510891183 A CN201510891183 A CN 201510891183A CN 106810910 A CN106810910 A CN 106810910A
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- Prior art keywords
- magnesium hydroxide
- reactor
- flame retardant
- modified
- preparation
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
- C09C1/028—Compounds containing only magnesium as metal
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K21/00—Fireproofing materials
- C09K21/02—Inorganic materials
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Fireproofing Substances (AREA)
Abstract
The invention discloses a kind of preparation method of modified magnesium hydroxide flame retardant agent, comprise the following steps：1) choose magnesium hydroxide to be added in reactor, and reactor is warmed up to 80-90 DEG C；2) agitator is started, the magnesium hydroxide in reactor is stirred 10-15 minutes, stir speed (S.S.) is 400-500 revs/min；3) to adding stearic acid modified dose in reactor, the reaction time is 3-4 hours；4) magnesium hydroxide in reactor filtered, dried, sieved, obtained modified magnesium hydroxide flame retardant agent finished product.The preparation method of modified magnesium hydroxide flame retardant agent of the present invention, it is modified by carrying out surface to common magnesium hydroxide, change the polarity on magnesium hydroxide surface, so as to the surface for reducing magnesium hydroxide can, reduce the agglomeration of magnesium hydroxide, magnesium hydroxide dispersive property is strengthened, the fire resistance of magnesium hydroxide is improve.
Description
Technical field
Change the present invention relates to modified magnesium hydroxide flame retardant agent processing technique field, more particularly to one kind
The preparation method of property flame retardant of magnesium hydroxide.
Background technology
With developing rapidly for macromolecular material and making extensively in national economy every field
National governments and the people are increasingly subject to, the fire hazard that macromolecular material combustibility is brought
Common concern.And the material containing fire retardant can prevent from triggering fire and suppressing small fire developing into
Tragic fire, reduces fire hazard.Flame retardant of magnesium hydroxide has nontoxicity, low-corrosiveness
Performance, thus be used widely.Flame retardant of magnesium hydroxide is by chemical breakdown when being heated
Absorb heat and discharge water outlet and play fire retardation, therefore with raw after nontoxic, low cigarette and decomposition
Into magnesia stable chemical nature, the advantages of do not produce secondary pollution.But common hydroxide
Magnesium is because purity is not high, moisture does not reach requirement, particle size distribution is wide, dispersive property
It is poor, the shortcomings of specific surface area is big, limit its application as fire retardant.
The content of the invention
Defect problem of the purpose of the present invention for above-mentioned magnesium hydroxide of the prior art, there is provided
A kind of preparation method of modified magnesium hydroxide flame retardant agent, the method is entered by common magnesium hydroxide
Row surface is modified, and changes the polarity on magnesium hydroxide surface, so that the surface energy of magnesium hydroxide is reduced,
Reduce the agglomeration of magnesium hydroxide, strengthen magnesium hydroxide dispersive property, improve hydroxide
The fire resistance of magnesium fire retardant.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of preparation method of modified magnesium hydroxide flame retardant agent, comprises the following steps：
1) choose magnesium hydroxide to be added in reactor, and reactor is warmed up to 80-90 DEG C；
2) agitator is started, the magnesium hydroxide in reactor is stirred 10-15 minutes, stirring
Speed is 400-500 revs/min；
3) to adding stearic acid modified dose in reactor, the reaction time is 3-4 hours；
4) magnesium hydroxide in reactor filtered, dried, sieved, obtained modified hydrogen
Magnesia fire retardant finished product.
Further, the reactor is enamel reaction still.
Further, the stearic consumption is the 1%-3% of magnesium hydroxide quality.
Further, the sieving is sieved using the sieves of 325 mesh.
Further, the temperature of the drying is 100-120 DEG C, and drying time is 30-50 points
Clock.
Beneficial effects of the present invention：A kind of preparation method of modified magnesium hydroxide flame retardant agent, the party
Method is modified by carrying out surface to common magnesium hydroxide, changes the polarity on magnesium hydroxide surface, from
And reduce magnesium hydroxide surface can, reduce magnesium hydroxide agglomeration, strengthen hydroxide
Magnesium dispersive property, improves the fire resistance of flame retardant of magnesium hydroxide.
Specific embodiment
Embodiment 1
A kind of preparation method of modified magnesium hydroxide flame retardant agent, comprises the following steps：
1) choose magnesium hydroxide to be added in reactor, and reactor is warmed up to 80 DEG C；Instead
Answering kettle can use enamel reaction still；
2) agitator is started, the magnesium hydroxide in reactor is stirred 15 minutes, stir speed (S.S.)
It is 400 revs/min；
3) to adding stearic acid modified dose in reactor, the reaction time is 4 hours；Stearic acid
Consumption for magnesium hydroxide quality 3%.
4) magnesium hydroxide in reactor filtered, dried, sieved；The temperature of drying
It it is 100 DEG C, drying time is 50 minutes；Sieving is sieved using the sieves of 325 mesh；
Obtain modified magnesium hydroxide flame retardant agent finished product.
Embodiment 2
A kind of preparation method of modified magnesium hydroxide flame retardant agent, comprises the following steps：
1) choose magnesium hydroxide to be added in reactor, and reactor is warmed up to 90 DEG C；Instead
Answering kettle can use enamel reaction still；
2) agitator is started, the magnesium hydroxide in reactor is stirred 10 minutes, stir speed (S.S.)
It is 500 revs/min；
3) to adding stearic acid modified dose in reactor, the reaction time is 3 hours；Stearic acid
Consumption for magnesium hydroxide quality 1%.
4) magnesium hydroxide in reactor filtered, dried, sieved；The temperature of drying
It it is 120 DEG C, drying time is 30 minutes；Sieving is sieved using the sieves of 325 mesh；
Obtain modified magnesium hydroxide flame retardant agent finished product.
Embodiment 3
A kind of preparation method of modified magnesium hydroxide flame retardant agent, comprises the following steps：
1) choose magnesium hydroxide to be added in reactor, and reactor is warmed up to 85 DEG C；Instead
Answering kettle can use enamel reaction still；
2) agitator is started, the magnesium hydroxide in reactor is stirred 12 minutes, stir speed (S.S.)
It is 450 revs/min；
3) to adding stearic acid modified dose in reactor, the reaction time is 3.5 hours；It is stearic
The consumption of acid is the 2% of magnesium hydroxide quality.
4) magnesium hydroxide in reactor filtered, dried, sieved；The temperature of drying
It it is 110 DEG C, drying time is 40 minutes；Sieving is sieved using the sieves of 325 mesh；
Obtain modified magnesium hydroxide flame retardant agent finished product.
A kind of preparation method of modified magnesium hydroxide flame retardant agent, the method is by common hydroxide
Magnesium carries out surface and is modified, and changes the polarity on magnesium hydroxide surface, so as to reduce the table of magnesium hydroxide
Face energy, reduces the agglomeration of magnesium hydroxide, strengthens magnesium hydroxide dispersive property, improves
The fire resistance of flame retardant of magnesium hydroxide.
Embodiment described above is only that the preferred embodiment of the present invention is described, and
It is non-that the spirit and scope of the present invention are defined.The premise of design concept of the present invention is not being departed from
Under, all variations and modifications that this area ordinary person makes to technical scheme,
Protection scope of the present invention should be dropped into.
Claims (5)
1. a kind of preparation method of modified magnesium hydroxide flame retardant agent, it is characterised in that including with
Lower step：
1) choose magnesium hydroxide to be added in reactor, and reactor is warmed up to 80-90 DEG C；
2) agitator is started, the magnesium hydroxide in reactor is stirred 10-15 minutes, stirring
Speed is 400-500 revs/min；
3) to adding stearic acid modified dose in reactor, the reaction time is 3-4 hours；
4) magnesium hydroxide in reactor filtered, dried, sieved, obtained modified hydrogen
Magnesia fire retardant finished product.
2. according to a kind of preparation method of the modified magnesium hydroxide flame retardant agent described in claim 1,
It is characterized in that：The reactor is enamel reaction still.
3. according to a kind of preparation method of the modified magnesium hydroxide flame retardant agent described in claim 1,
It is characterized in that：The stearic consumption is the 1%-3% of magnesium hydroxide quality.
4. according to a kind of preparation method of the modified magnesium hydroxide flame retardant agent described in claim 1,
It is characterized in that：The sieving is sieved using the sieves of 325 mesh.
5. according to a kind of preparation method of the modified magnesium hydroxide flame retardant agent described in claim 1,
It is characterized in that：The temperature of the drying is 100-120 DEG C, and drying time is 30-50 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510891183.5A CN106810910A (en) | 2015-12-01 | 2015-12-01 | A kind of preparation method of modified magnesium hydroxide flame retardant agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510891183.5A CN106810910A (en) | 2015-12-01 | 2015-12-01 | A kind of preparation method of modified magnesium hydroxide flame retardant agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106810910A true CN106810910A (en) | 2017-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510891183.5A Pending CN106810910A (en) | 2015-12-01 | 2015-12-01 | A kind of preparation method of modified magnesium hydroxide flame retardant agent |
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| CN (1) | CN106810910A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108395602A (en) * | 2018-03-01 | 2018-08-14 | 合肥达户电线电缆科技有限公司 | A kind of novel flame-retardant wire cable material and preparation method thereof |
-
2015
- 2015-12-01 CN CN201510891183.5A patent/CN106810910A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108395602A (en) * | 2018-03-01 | 2018-08-14 | 合肥达户电线电缆科技有限公司 | A kind of novel flame-retardant wire cable material and preparation method thereof |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170609 |