CN108264685A - A kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board - Google Patents
A kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board Download PDFInfo
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- CN108264685A CN108264685A CN201711426598.0A CN201711426598A CN108264685A CN 108264685 A CN108264685 A CN 108264685A CN 201711426598 A CN201711426598 A CN 201711426598A CN 108264685 A CN108264685 A CN 108264685A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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Abstract
The invention discloses a kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation boards, are formed including following weight parts：Polypropylene：50~70 parts of high density polyethylene (HDPE)s：30~50 parts of fire retardants：10~20 parts of age resisters：0.3~1 part of synergist：2~5 parts of stabilizers：0.5~1 part of synergist is graphite, the compound of phosphoenolpyruvate, 5 phosphoric acid Vitamin B6s；The stabilizer is octylphosphonic acid sodium；The fire retardant is crystal whisker of hexa potassium titanate.In the present invention, mainly prepared using polypropylene and high density polyethylene (HDPE) as basic material, the addition of potassium hexatitanate, the flame retardant property of integral material can be increased substantially, the synergist wherein added in is provided except preferable flame retardant property, integral material is enabled to remain able to that there is preferable mechanical property when long-time is under annealed condition.
Description
Technical field
The present invention relates to a kind of high molecular material, more particularly to a kind of PP antibacterial films and preparation method thereof.
Background technology
Polypropylene (PP) is widely used in electronics due to having many advantages, such as that inexpensive, excellent in mechanical performance, processing and forming are easy
The fields such as electric appliance, Communication Equipment, automobile, construction material.But it since PP itself is inflammable, limits it and further applies.Traditional
Though halogen containing flame-retardant has good flame retardant property, a large amount of smog and toxic gas can be generated in burning, is caused secondary
Pollution, therefore study halogen-free polypropylene flame redardant and have great importance.
Fire-retardant thermal insulation board is frequently used in air-conditioning, during operation of air conditioner, due to heat exchange, is generated continual and steady
Temperature, this temperature is generally between 50~70 DEG C, and particularly summer is required for using air-conditioning now, and often one to open be exactly one
All day, substantially thermal insulation board are above the time of ten hours daily at such temperatures, allow for thermal insulation board in this way and are equivalent to
In the state of an annealing, although thermal insulation board on the market can have flame retardant effect, such as Patent No. at present
The Chinese patent of CN201010503085.7 discloses a kind of activeness and quietness halogen-free polypropylene flame redardant mixture and its preparation
Method, this method are after first the absolute ethyl alcohol of 20~30 mass parts of the surface modifier of 0.5~3 mass parts is diluted, to add in
In the alkali magnesium sulfate crystal whisker of 100 mass parts, after being mixed 15~30 minutes in mixing machine, dry, be modified in an oven
Alkali magnesium sulfate crystal whisker；10~60 μm of alkali magnesium sulfate crystal whisker average length, diameter are less than 10 μm；Then it is in double roller temperature
Acrylic resin is first added on 170~180 DEG C of open warm-up mill, antioxidant, toughening are sequentially added after it melts packet roller
Modifying agent, modified alkali magnesium sulfate crystal whisker, synergistic flame retardant, anti-dropping modifying agent and compatibilized modifier, mixing can uniformly make
Obtain activeness and quietness halogen-free polypropylene flame redardant mixture；Polypropylene miser produced by the present invention has intensity height, good toughness, low
Cigarette, it is nontoxic, without molten drop, flame retardant property protrude the advantages that.But for a long time under annealing temperature, although maintaining preferable resistance
Performance is fired, but can so that whole intensity is declined, needs to regularly replace.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of long-time to be under annealing temperature
Remain able to the anti-flaming thermal-insulation plate with preferable use intensity.
To achieve the above object, the present invention provides following technical solutions：
A kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board is formed including following weight parts：
Polypropylene：50~70 parts
High density polyethylene (HDPE)：30~50 parts
Fire retardant：10~20 parts
Age resister：0.3~1 part
Synergist：2~5 parts
Stabilizer：0.5~1 part
The synergist is graphite, the compound of phosphoenolpyruvate, 5- phosphoric acid Vitamin B6s；
The stabilizer is octylphosphonic acid sodium；
The fire retardant is crystal whisker of hexa potassium titanate.
As a further improvement on the present invention：
The age resister is age resister MBP or age resister 2246.
As a further improvement on the present invention：
Graphite in the synergist, phosphoenolpyruvate, 5- phosphoric acid Vitamin B6s mass ratio be 20: 1: 1.
As a further improvement on the present invention：
The preparation method of the synergist is as follows：
Step 1：By the dilute oxidation of graphite, graphite oxide is obtained；
Step 2：Dispersion liquid is prepared, 1 part of phosphoenolpyruvate and 1 part of 5- are added in the aqueous solution of 100 parts of mass parts
Phosphoric acid Vitamin B6 adds in graphite oxide later, disperses in aqueous solution and stirs evenly；
Step 3：50~60 DEG C are warming up to, and continues stirring 2~3 hours；
Step 4：Synergist is arrived in drying.
As a further improvement on the present invention：
The step 1 is low-temp reaction：Large beaker is put into ice-water bath, the concentrated sulfuric acid is added in, is stirred on magnetic stirring apparatus
It mixes, is put into thermometer and is down to 4 DEG C or so by its temperature.Graphite is added in, 2.5g NaNO3 is added, is then slowly added into KMnO4,
When adding postscript, 90min is stirred to react on magnetic stirring apparatus, solution is in purple green；Ice-water bath is changed into tepidarium, in magnetic force
The temperature in beaker is controlled at 32~40 DEG C under blender stirring, it is allowed to react 30min, solution is in purple green；Reaction terminates
Later, deionized water is slowly added to, heating keeps 70~100 DEG C or so of temperature, and it is anti-to be slowly added to certain hydrogen peroxide progress high temperature
Should, reaction solution becomes golden yellow at this time；Solution after the reaction multiple centrifuge washing in centrifuge, until BaCl2 detections are without white
Color precipitation generation, sample dry at a temperature of 40~50 DEG C and obtain graphite oxide.
As a further improvement on the present invention：
The step 3 whipping process stirs paddle stirring 1 hour first to use, later ultrasonication 30min.
As a further improvement on the present invention：
Stirring in the step 4 is stirring paddle stirring.
In the present invention, it is mainly prepared using polypropylene and high density polyethylene (HDPE) as basic material, potassium hexatitanate
Addition, the flame retardant property of integral material can be increased substantially, wherein the synergist that adds in provide preferable flame retardant property it
Outside, integral material is enabled to remain able to that there is preferable mechanical property when long-time is under annealed condition.
In synergist selection course, by that will have flame retardant effect organic matter to load on dispersed preferable graphite,
The flame retardant effect that can be in this way is more uniform, in the selection of Simultaneous Stabilization agent, selects octylphosphonic acid sodium, can improve and prepare
In the process, for the stablizing effect of synergist so that synergist is not destroyed in use in process, keeps it
Activity.
Specific embodiment
Embodiment one：
A kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board is formed including following weight parts：
Polypropylene：50 parts
High density polyethylene (HDPE)：40 parts
Fire retardant：20 parts
Age resister：0.6 part
Synergist：3 parts
Stabilizer：1 part
The synergist is graphite, the compound of phosphoenolpyruvate, 5- phosphoric acid Vitamin B6s；
The stabilizer is octylphosphonic acid sodium；
The fire retardant is crystal whisker of hexa potassium titanate.
The age resister is age resister MBP.
Graphite in the synergist, phosphoenolpyruvate, 5- phosphoric acid Vitamin B6s mass ratio be 20: 1: 1.
The preparation method of the synergist is as follows：
Step 1：By the dilute oxidation of graphite, graphite oxide is obtained；
Step 2：Dispersion liquid is prepared, 1 part of phosphoenolpyruvate and 1 part of 5- are added in the aqueous solution of 100 parts of mass parts
Phosphoric acid Vitamin B6 adds in graphite oxide later, disperses in aqueous solution and stirs evenly；
Step 3：50~60 DEG C are warming up to, and continues stirring 2~3 hours；
Step 4：Synergist is arrived in drying.
The step 1 is low-temp reaction：Large beaker is put into ice-water bath, the concentrated sulfuric acid is added in, is stirred on magnetic stirring apparatus
It mixes, is put into thermometer and is down to 4 DEG C or so by its temperature.Graphite is added in, 2.5g NaNO3 is added, is then slowly added into KMnO4,
When adding postscript, 90min is stirred to react on magnetic stirring apparatus, solution is in purple green；Ice-water bath is changed into tepidarium, in magnetic force
The temperature in beaker is controlled at 32~40 DEG C under blender stirring, it is allowed to react 30min, solution is in purple green；Reaction terminates
Later, deionized water is slowly added to, heating keeps 70~100 DEG C or so of temperature, and it is anti-to be slowly added to certain hydrogen peroxide progress high temperature
Should, reaction solution becomes golden yellow at this time；Solution after the reaction multiple centrifuge washing in centrifuge, until BaCl2 detections are without white
Color precipitation generation, sample dry at a temperature of 40~50 DEG C and obtain graphite oxide.
The step 3 whipping process stirs paddle stirring 1 hour first to use, later ultrasonication 30min.
Stirring in the step 4 is stirring paddle stirring.
Thermal insulation board preparation method：Above-mentioned raw materials are weighed, are added in double roller warm-up mill, carry out being kneaded 15 points at 190 DEG C
Clock, vulcanizing press hot pressing at 200 DEG C later, postcooling, slice obtain thermal insulation board.
Embodiment two：
A kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board is formed including following weight parts：
Polypropylene：60 parts
High density polyethylene (HDPE)：50 parts
Fire retardant：15 parts
Age resister：0.3 part
Synergist：5 parts
Stabilizer：0.7 part
The synergist is graphite, the compound of phosphoenolpyruvate, 5- phosphoric acid Vitamin B6s；
The stabilizer is octylphosphonic acid sodium；
The fire retardant is crystal whisker of hexa potassium titanate.
Graphite in the synergist, phosphoenolpyruvate, 5- phosphoric acid Vitamin B6s mass ratio be 20: 1: 1.
The preparation method of the synergist is as follows：
Step 1：By the dilute oxidation of graphite, graphite oxide is obtained；
Step 2：Dispersion liquid is prepared, 1 part of phosphoenolpyruvate and 1 part of 5- are added in the aqueous solution of 100 parts of mass parts
Phosphoric acid Vitamin B6 adds in graphite oxide later, disperses in aqueous solution and stirs evenly；
Step 3：50~60 DEG C are warming up to, and continues stirring 2~3 hours；
Step 4：Synergist is arrived in drying.
The step 1 is low-temp reaction：Large beaker is put into ice-water bath, the concentrated sulfuric acid is added in, is stirred on magnetic stirring apparatus
It mixes, is put into thermometer and is down to 4 DEG C or so by its temperature.Graphite is added in, 2.5g NaNO3 is added, is then slowly added into KMnO4,
When adding postscript, 90min is stirred to react on magnetic stirring apparatus, solution is in purple green；Ice-water bath is changed into tepidarium, in magnetic force
The temperature in beaker is controlled at 32~40 DEG C under blender stirring, it is allowed to react 30min, solution is in purple green；Reaction terminates
Later, deionized water is slowly added to, heating keeps 70~100 DEG C or so of temperature, and it is anti-to be slowly added to certain hydrogen peroxide progress high temperature
Should, reaction solution becomes golden yellow at this time；Solution after the reaction multiple centrifuge washing in centrifuge, until BaCl2 detections are without white
Color precipitation generation, sample dry at a temperature of 40~50 DEG C and obtain graphite oxide.
The step 3 whipping process stirs paddle stirring 1 hour first to use, later ultrasonication 30min.
Stirring in the step 4 is stirring paddle stirring.
Thermal insulation board preparation method：Above-mentioned raw materials are weighed, are added in double roller warm-up mill, carry out being kneaded 15 points at 170 DEG C
Clock, vulcanizing press hot pressing at 180 DEG C later, postcooling, slice obtain thermal insulation board.
Embodiment three：
A kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board is formed including following weight parts：
Polypropylene：70 parts
High density polyethylene (HDPE)：30 parts
Fire retardant：10 parts
Age resister：1 part
Synergist：2 parts
Stabilizer：0.5 part
The synergist is graphite, the compound of phosphoenolpyruvate, 5- phosphoric acid Vitamin B6s；
The stabilizer is octylphosphonic acid sodium；
The fire retardant is crystal whisker of hexa potassium titanate.
Graphite in the synergist, phosphoenolpyruvate, 5- phosphoric acid Vitamin B6s mass ratio be 20: 1: 1.
The preparation method of the synergist is as follows：
Step 1：By the dilute oxidation of graphite, graphite oxide is obtained；
Step 2：Dispersion liquid is prepared, 1 part of phosphoenolpyruvate and 1 part of 5- are added in the aqueous solution of 100 parts of mass parts
Phosphoric acid Vitamin B6 adds in graphite oxide later, disperses in aqueous solution and stirs evenly；
Step 3：50~60 DEG C are warming up to, and continues stirring 2~3 hours；
Step 4：Synergist is arrived in drying.
The step 1 is low-temp reaction：Large beaker is put into ice-water bath, the concentrated sulfuric acid is added in, is stirred on magnetic stirring apparatus
It mixes, is put into thermometer and is down to 4 DEG C or so by its temperature.Graphite is added in, 2.5g NaNO3 is added, is then slowly added into KMnO4,
When adding postscript, 90min is stirred to react on magnetic stirring apparatus, solution is in purple green；Ice-water bath is changed into tepidarium, in magnetic force
The temperature in beaker is controlled at 32~40 DEG C under blender stirring, it is allowed to react 30min, solution is in purple green；Reaction terminates
Later, deionized water is slowly added to, heating keeps 70~100 DEG C or so of temperature, and it is anti-to be slowly added to certain hydrogen peroxide progress high temperature
Should, reaction solution becomes golden yellow at this time；Solution after the reaction multiple centrifuge washing in centrifuge, until BaCl2 detections are without white
Color precipitation generation, sample dry at a temperature of 40~50 DEG C and obtain graphite oxide.
The step 3 whipping process stirs paddle stirring 1 hour first to use, later ultrasonication 30min.
Stirring in the step 4 is stirring paddle stirring.
Thermal insulation board preparation method：Above-mentioned raw materials are weighed, are added in double roller warm-up mill, carry out being kneaded 15 points at 170 DEG C
Clock, vulcanizing press hot pressing at 180 DEG C later, postcooling, slice obtain thermal insulation board.
Comparative example one：
A kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board is formed including following weight parts：
Polypropylene：70 parts
High density polyethylene (HDPE)：30 parts
Fire retardant：10 parts
Age resister：1 part
Graphite：2 parts
Stabilizer：0.5 part
The stabilizer is octylphosphonic acid sodium；
The fire retardant is crystal whisker of hexa potassium titanate.
Thermal insulation board preparation method：Above-mentioned raw materials are weighed, are added in double roller warm-up mill, carry out being kneaded 15 points at 170 DEG C
Clock, vulcanizing press hot pressing at 180 DEG C later, postcooling, slice obtain thermal insulation board.
Comparative example two：
A kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board is formed including following weight parts：
Polypropylene：70 parts
High density polyethylene (HDPE)：30 parts
Fire retardant：10 parts
Age resister：1 part
Synergist：2 parts
Stabilizer：0.5 part
The synergist is graphite, the mixture of phosphoenolpyruvate, 5- phosphoric acid Vitamin B6s；
The stabilizer is octylphosphonic acid sodium；
The fire retardant is crystal whisker of hexa potassium titanate.
Graphite in the synergist, phosphoenolpyruvate, 5- phosphoric acid Vitamin B6s mass ratio mixed for 20: 1: 1,
Stirring 2 hours.
Thermal insulation board preparation method：Above-mentioned raw materials are weighed, are added in double roller warm-up mill, carry out being kneaded 15 points at 170 DEG C
Clock, vulcanizing press hot pressing at 180 DEG C later, postcooling, slice obtain thermal insulation board.
Comparative example three：
A kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board is formed including following weight parts：
Polypropylene：50 parts
High density polyethylene (HDPE)：40 parts
Fire retardant：20 parts
Age resister：0.6 part
Synergist：3 parts
Stabilizer：1 part
The synergist is graphite, the compound of phosphoenolpyruvate, 5- phosphoric acid Vitamin B6s；
The fire retardant is crystal whisker of hexa potassium titanate.
The age resister is age resister MBP.
Graphite in the synergist, phosphoenolpyruvate, 5- phosphoric acid Vitamin B6s mass ratio be 20: 1: 1.
The preparation method of the synergist is as follows：
Step 1：By the dilute oxidation of graphite, graphite oxide is obtained；
Step 2：Dispersion liquid is prepared, 1 part of phosphoenolpyruvate and 1 part of 5- are added in the aqueous solution of 100 parts of mass parts
Phosphoric acid Vitamin B6 adds in graphite oxide later, disperses in aqueous solution and stirs evenly；
Step 3：50~60 DEG C are warming up to, and continues stirring 2~3 hours；
Step 4：Synergist is arrived in drying.
The step 1 is low-temp reaction：Large beaker is put into ice-water bath, the concentrated sulfuric acid is added in, is stirred on magnetic stirring apparatus
It mixes, is put into thermometer and is down to 4 DEG C or so by its temperature.Graphite is added in, 2.5g NaNO3 is added, is then slowly added into KMnO4,
When adding postscript, 90min is stirred to react on magnetic stirring apparatus, solution is in purple green；Ice-water bath is changed into tepidarium, in magnetic force
The temperature in beaker is controlled at 32~40 DEG C under blender stirring, it is allowed to react 30min, solution is in purple green；Reaction terminates
Later, deionized water is slowly added to, heating keeps 70~100 DEG C or so of temperature, and it is anti-to be slowly added to certain hydrogen peroxide progress high temperature
Should, reaction solution becomes golden yellow at this time；Solution after the reaction multiple centrifuge washing in centrifuge, until BaCl2 detections are without white
Color precipitation generation, sample dry at a temperature of 40~50 DEG C and obtain graphite oxide.
The step 3 whipping process stirs paddle stirring 1 hour first to use, later ultrasonication 30min.
Stirring in the step 4 is stirring paddle stirring.
Thermal insulation board preparation method：Above-mentioned raw materials are weighed, are added in double roller warm-up mill, carry out being kneaded 15 points at 190 DEG C
Clock, vulcanizing press hot pressing at 200 DEG C later, postcooling, slice obtain thermal insulation board.
Comparative example four：
The thermal insulation board prepared according to Patent No. 201010503085.7.
Test：
Tensile strength and elongation at break are measured according to GB/T1040-92；
Notched Chalpy impact intensity is measured according to GB/T1843-1996；
According to its flame retardant rating of ASTM D635-77 standard testings.
It is tested under normal circumstances：
It will continue 50 hours, then tested in the baking oven of comparative example and 60 DEG C of the material of embodiment：
In the present invention, it is mainly prepared using polypropylene and high density polyethylene (HDPE) as basic material, potassium hexatitanate
Addition, the flame retardant property of integral material can be increased substantially, wherein the synergist that adds in provide preferable flame retardant property it
Outside, integral material is enabled to remain able to that there is preferable mechanical property when long-time is under annealed condition.
In synergist selection course, by that will have flame retardant effect organic matter to load on dispersed preferable graphite,
The flame retardant effect that can be in this way is more uniform, in the selection of Simultaneous Stabilization agent, selects octylphosphonic acid sodium, can improve and prepare
In the process, for the stablizing effect of synergist so that synergist is not destroyed in use in process, keeps it
Activity.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board, it is characterised in that：It is formed including following weight parts：
Polypropylene：50~70 parts
High density polyethylene (HDPE)：30~50 parts
Fire retardant：10~20 parts
Age resister：0.3~1 part
Synergist：2~5 parts
Stabilizer：0.5~1 part
The synergist is graphite, the compound of phosphoenolpyruvate, 5- phosphoric acid Vitamin B6s；
The stabilizer is octylphosphonic acid sodium；
The fire retardant is crystal whisker of hexa potassium titanate.
2. a kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board according to claim 1, it is characterised in that：It is described anti-ageing
Agent is age resister MBP or age resister 2246.
3. a kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board according to claim 2, it is characterised in that：The collaboration
Graphite in agent, phosphoenolpyruvate, 5- phosphoric acid Vitamin B6s mass ratio be 20: 1: 1.
4. a kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board according to claim 3, it is characterised in that：The collaboration
The preparation method of agent is as follows：
Step 1：By the dilute oxidation of graphite, graphite oxide is obtained；
Step 2：Dispersion liquid is prepared, 1 part of phosphoenolpyruvate and 1 part of 5- phosphoric acid are added in the aqueous solution of 100 parts of mass parts
Vitamin B6 adds in graphite oxide later, disperses in aqueous solution and stirs evenly；
Step 3：50~60 DEG C are warming up to, and continues stirring 2~3 hours；
Step 4：Synergist is arrived in drying.
5. a kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board according to claim 4, it is characterised in that：The step
One is low-temp reaction：Large beaker is put into ice-water bath, the concentrated sulfuric acid is added in, is stirred on magnetic stirring apparatus, be put into thermometer and allow
Its temperature is down to 4 DEG C or so.Graphite is added in, 2.5g NaNO3 is added, is then slowly added into KMnO4, when adding postscript, in magnetic
90min is stirred to react on power blender, solution is in purple green；Change ice-water bath into tepidarium, it will under magnetic stirrer
Temperature in beaker is controlled at 32~40 DEG C, it is allowed to react 30min, solution is in purple green；After reaction terminates, it is slowly added to
Ionized water, heating keep 70~100 DEG C or so of temperature, are slowly added to certain hydrogen peroxide and carry out pyroreaction, reaction solution becomes at this time
Into golden yellow；Solution after the reaction multiple centrifuge washing in centrifuge, until BaCl2 detections are generated without white precipitate, sample
Drying obtains graphite oxide at a temperature of 40~50 DEG C.
6. a kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board according to claim 5, it is characterised in that：The step
Three whipping process stir paddle stirring 1 hour first to use, later ultrasonication 30min.
7. a kind of MODIFIED PP fire proofing air-conditioning plastic uptake thermal insulation board according to claim 6, it is characterised in that：The step
Stirring in four is stirring paddle stirring.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109705462A (en) * | 2018-12-25 | 2019-05-03 | 广东聚石化学股份有限公司 | A kind of dedicated V0 grade halogen-free flame-retardant polypropylene material of extrusion plastic uptake and preparation method thereof |
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