CN106810909A - A kind of processing technology of modified magnesium hydroxide flame retardant agent - Google Patents
A kind of processing technology of modified magnesium hydroxide flame retardant agent Download PDFInfo
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- CN106810909A CN106810909A CN201510891181.6A CN201510891181A CN106810909A CN 106810909 A CN106810909 A CN 106810909A CN 201510891181 A CN201510891181 A CN 201510891181A CN 106810909 A CN106810909 A CN 106810909A
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- magnesium hydroxide
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- flame retardant
- retardant agent
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Abstract
The invention discloses a kind of processing technology of modified magnesium hydroxide flame retardant agent, comprise the following steps：1) choose magnesium hydroxide to be added in reactor, and to water is added in reactor, be configured to the slurries that solids content is 6%-10%, 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 dodecyl sodium sulfate is added in reactor, the reaction time is 0.5-1 hours；4) separation of solid and liquid, solid phase drying, sieving are carried out to the magnesium hydroxide in reactor, modified magnesium hydroxide flame retardant agent finished product is obtained.The processing technology of modified magnesium hydroxide flame retardant agent of the present invention, the technique is modified by adding dodecyl sodium sulfate to carry out surface common magnesium hydroxide, change the polarity on magnesium hydroxide surface, so as to reduce the specific surface area of magnesium hydroxide, magnesium hydroxide dispersive property is strengthened, the fire resistance of flame retardant 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 processing technology 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 dispersive property is poor, specific surface area big, limits 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 processing technology of modified magnesium hydroxide flame retardant agent, the technique adds by common magnesium hydroxide
Enter dodecyl sodium sulfate and carry out surface to be modified, change the polarity on magnesium hydroxide surface, so as to drop
The specific surface area of low hydrogen magnesia, strengthens magnesium hydroxide dispersive property, improves magnesium hydroxide
The fire resistance of fire retardant.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of processing technology of modified magnesium hydroxide flame retardant agent, comprises the following steps：
1) choose magnesium hydroxide to be added in reactor, and to water is added in reactor, prepare
It is the slurries of 6%-10% into solids content, 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 dodecyl sodium sulfate is added in reactor, the reaction time is 0.5-1 hours；
4) separation of solid and liquid, solid phase drying, sieving are carried out to the magnesium hydroxide in reactor, is obtained
To modified magnesium hydroxide flame retardant agent finished product.
Further, the reactor is enamel reaction still.
Further, the consumption of the dodecyl sodium sulfate is the 1%-3% of magnesium hydroxide quality.
Further, the sieving is sieved using the sieves of 325 mesh.
Further, the temperature of the solid phase drying is 100-120 DEG C, and drying time is 30-50
Minute.
Beneficial effects of the present invention：A kind of processing technology of modified magnesium hydroxide flame retardant agent, the work
Skill is modified by adding dodecyl sodium sulfate to carry out surface common magnesium hydroxide, changes hydrogen-oxygen
Change the polarity of magnesium surface, so as to reduce the specific surface area of magnesium hydroxide, strengthen magnesium hydroxide point
Performance is dissipated, the fire resistance of flame retardant of magnesium hydroxide is improve.
Specific embodiment
Embodiment 1
A kind of processing technology of modified magnesium hydroxide flame retardant agent, comprises the following steps：
1) choose magnesium hydroxide to be added in reactor, and to water is added in reactor, prepare
Into the slurries that solids content is 6%, reactor is warmed up to 80 DEG C；Reactor can be enamel
Reactor；
2) agitator is started, the magnesium hydroxide in reactor is stirred 10 minutes, stir speed (S.S.)
It is 500 revs/min；
3) it is to the consumption for adding dodecyl sodium sulfate, dodecyl sodium sulfate in reactor
The 1% of magnesium hydroxide quality, the reaction time is 0.5 hour；
4) separation of solid and liquid, solid phase drying, sieving are carried out to the magnesium hydroxide in reactor, Gu
Mutually the temperature of drying is 100 DEG C, and drying time is 50 minutes；Sieving uses the mistake of 325 mesh
Screen is sieved；Obtain modified magnesium hydroxide flame retardant agent finished product.
Embodiment 2
A kind of processing technology of modified magnesium hydroxide flame retardant agent, comprises the following steps：
1) choose magnesium hydroxide to be added in reactor, and to water is added in reactor, prepare
Into the slurries that solids content is 10%, reactor is warmed up to 90 DEG C；Reactor can be enamel
Reactor；
2) agitator is started, the magnesium hydroxide in reactor is stirred 15 minutes, stir speed (S.S.)
It is 400 revs/min；
3) it is to the consumption for adding dodecyl sodium sulfate, dodecyl sodium sulfate in reactor
The 3% of magnesium hydroxide quality, the reaction time is 1 hour；
4) separation of solid and liquid, solid phase drying, sieving are carried out to the magnesium hydroxide in reactor, Gu
Mutually the temperature of drying is 120 DEG C, and drying time is 30 minutes；Sieving uses the mistake of 325 mesh
Screen is sieved；Obtain modified magnesium hydroxide flame retardant agent finished product.
Embodiment 3
A kind of processing technology of modified magnesium hydroxide flame retardant agent, comprises the following steps：
1) choose magnesium hydroxide to be added in reactor, and to water is added in reactor, prepare
Into the slurries that solids content is 8%, reactor is warmed up to 85 DEG C；Reactor can be enamel
Reactor；
2) agitator is started, the magnesium hydroxide in reactor is stirred 12 minutes, stir speed (S.S.)
It is 450 revs/min；
3) it is to the consumption for adding dodecyl sodium sulfate, dodecyl sodium sulfate in reactor
The 2% of magnesium hydroxide quality, the reaction time is 0.75 hour；
4) separation of solid and liquid, solid phase drying, sieving are carried out to the magnesium hydroxide in reactor, Gu
Mutually the temperature of drying is 110 DEG C, and drying time is 40 minutes；Sieving uses the mistake of 325 mesh
Screen is sieved；Obtain modified magnesium hydroxide flame retardant agent finished product.
A kind of processing technology of modified magnesium hydroxide flame retardant agent, the technique is by common hydroxide
Magnesium adds dodecyl sodium sulfate to carry out surface and is modified, and changes the polarity on magnesium hydroxide surface, from
And the specific surface area of magnesium hydroxide is reduced, and magnesium hydroxide dispersive property is strengthened, improve hydrogen-oxygen
Change the fire resistance of magnesium fire retardant.
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 processing technology 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 to water is added in reactor, prepare
It is the slurries of 6%-10% into solids content, 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 dodecyl sodium sulfate is added in reactor, the reaction time is 0.5-1 hours；
4) separation of solid and liquid, solid phase drying, sieving are carried out to the magnesium hydroxide in reactor, is obtained
To modified magnesium hydroxide flame retardant agent finished product.
2. according to a kind of processing technology 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 processing technology of the modified magnesium hydroxide flame retardant agent described in claim 1,
It is characterized in that：The consumption of the dodecyl sodium sulfate is the 1%-3% of magnesium hydroxide quality.
4. according to a kind of processing technology 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 processing technology of the modified magnesium hydroxide flame retardant agent described in claim 1,
It is characterized in that：The temperature of the solid phase drying is 100-120 DEG C, and drying time is 30-50
Minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510891181.6A CN106810909A (en) | 2015-12-01 | 2015-12-01 | A kind of processing technology of modified magnesium hydroxide flame retardant agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510891181.6A CN106810909A (en) | 2015-12-01 | 2015-12-01 | A kind of processing technology of modified magnesium hydroxide flame retardant agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106810909A true CN106810909A (en) | 2017-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510891181.6A Pending CN106810909A (en) | 2015-12-01 | 2015-12-01 | A kind of processing technology of modified magnesium hydroxide flame retardant agent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108164757A (en) * | 2017-12-25 | 2018-06-15 | 洛阳名力科技开发有限公司 | A kind of fire retardant |
-
2015
- 2015-12-01 CN CN201510891181.6A patent/CN106810909A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108164757A (en) * | 2017-12-25 | 2018-06-15 | 洛阳名力科技开发有限公司 | A kind of fire retardant |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170609 |