CN109438806A - A kind of flame retardant plastics and preparation method thereof - Google Patents
A kind of flame retardant plastics and preparation method thereof Download PDFInfo
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- 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- 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
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- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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Abstract
The invention discloses a kind of flame retardant plastics, it is related to technical field of polymer materials, dispersion in order to solve the problems, such as existing metal oxide is uneven and influences flame retardant effect, including following raw material: polyethylene, polypropylene, polyphenylene sulfide, modified micaceous powder, modified calcium carbonate, montmorillonite, diatomite, coupling agent, toughener, ultraviolet absorbing agent, sodium phytate, fire retardant, the invention also discloses the preparation methods of the flame retardant plastics, flame retardant plastics oxygen index (OI) prepared by the present invention is high and smoke density is low, pass through modified micaceous powder, modified calcium carbonate, diatomite and coupling agent, make toughener, ultraviolet absorbing agent and fire retardant are with modified micaceous powder, modified calcium carbonate, the filling of diatomite and be dispersed in material, further improve flame retardant property, by the way that sodium phytate and montmorillonite is added, the two forms good collaboration and makees With sodium phytate is modified montmorillonite, makes it have thermal stability and compression strength, has good market prospects.
Description
Technical field
The present invention relates to technical field of polymer materials, specifically a kind of flame retardant plastics and preparation method thereof.
Background technique
Plastics are, by high-molecular compound made of addition polymerization or polycondensation polymerized, to be commonly called as plastics using monomer as raw material
Or resin, it can freely change ingredient and body styles, by synthetic resin and filler, plasticizer, stabilizer, lubricant, colorant
Equal additives composition.The main component of plastics is resin.This noun of resin is initially the lipid secreted out of by animals and plants and obtains
Name, such as rosin, shellac, resin refer to the high-molecular compound not yet with various additives mixing.Resin accounts for about plastics gross weight
The 40%~100% of amount.The basic performance of plastics depends mainly on the person's character of resin, but additive also plays an important role.Have
A little plastics are substantially made of synthetic resin, are free of or less containing additive, such as organic glass, polystyrene.
With the development of the society, requirement of the people to polyethylene plastic products is higher and higher.Wherein, fire-retardant to become one greatly
Research hotspot.Because vinyon is readily burned, very big hidden danger is brought to the safety of life and property of people.Therefore, people
It is fire-retardant to achieve the effect that begin trying the addition fire retardant in polyethylene.But the fire retardant of the first generation is mostly halogen fire-retardant
Agent can cause secondary injury because of the burning of halogen element when making an addition in vinyon.Second generation fire retardant has three
Class: nitrogen-phosphorus fire retardant, expansion type flame retardant and oxide-metal combinations fire retardant.Wherein nitrogen-phosphorus fire retardant is to plastic products
Mechanical property causes very big negative effect, the good flame retardation effect of oxide-metal combinations fire retardant, but usually because of metal oxygen
The dispersion of compound is uneven and influences flame retardant effect.
Summary of the invention
The purpose of the present invention is to provide a kind of flame retardant plastics and preparation method thereof, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of flame retardant plastics, including below according to the raw material of parts by weight: 80-100 parts of polyethylene, gathers 8-12 parts of polypropylene
10-20 parts of diphenyl sulfide, powder 6-12 parts modified micaceous, 10-14 parts of modified calcium carbonate, 12-16 parts of montmorillonite, 6-10 parts of diatomite,
0.2-0.8 parts of coupling agent, 10-18 parts of toughener, 0.1-0.5 parts of ultraviolet absorbing agent, 2-6 parts of sodium phytate, fire retardant 0.5-2.5
Part.
As a further solution of the present invention: including below according to the raw material of parts by weight: 85-95 parts of polyethylene, polypropylene
9-11 parts, 12-18 parts of polyphenylene sulfide, powder 7-11 parts modified micaceous, 11-13 parts of modified calcium carbonate, 13-15 parts of montmorillonite, diatom
It is 7-9 parts native, 0.4-0.6 parts of coupling agent, 12-16 parts of toughener, 0.2-0.4 parts of ultraviolet absorbing agent, 3-4 parts of sodium phytate, fire-retardant
1-2 parts of agent.
As a further solution of the present invention: including below according to the raw material of parts by weight: 90 parts of polyethylene, polypropylene 10
Part, 15 parts of polyphenylene sulfide, 9 parts of modified micaceous powder, 12 parts of modified calcium carbonate, 14 parts of montmorillonite, 8 parts of diatomite, coupling agent 0.5
Part, 14 parts of toughener, 0.3 part of ultraviolet absorbing agent, 4 parts of sodium phytate, 1.5 parts of fire retardant.
As a further solution of the present invention: the modified micaceous powder the preparation method is as follows: being in temperature by mica powder
400-500 DEG C roasting 2-6 hours, take roasting after mica powder and gamma-aminopropyl-triethoxy-silane according to mass ratio be 20:1
Ultrasonic disperse 20-30min, supersonic frequency 40-50KHz, ultrasonic power 200-400W in 8-10 times of water is added in mixing,
Mixed liquor A is obtained, its gross mass 0.1-0.3% zinc borate, 0.2-0.4% ammonium polyphosphate stirring 30- are added into mixed liquor A
40min, centrifugation, is drying to obtain modified micaceous powder.
As a further solution of the present invention: the modified calcium carbonate the preparation method is as follows: by calcium oxide and water according to
Mass ratio 1:5-6 carry out mixing be put into reaction kettle, be stirred continuously processing 30-40min after mixed liquid B it is spare；To mixing
The methylchloroformate of its gross mass 0.2-0.4%, the nonylphenol polyoxyethylene ether of 0.1-0.2% are added in liquid B；It is stirred continuously place
It is spare that mixed liquor C is obtained after reason 20-30min；It is passed through excessive carbon dioxide gas into mixed liquor C, is then filtered, finally
Resulting filter residue is put into drying box and is dried after 1-1.5h up to calcium carbonate is improved.
As a further solution of the present invention: the coupling agent is titanate coupling agent.
As a further solution of the present invention: the toughener is polyolefin elastomer.
As a further solution of the present invention: the ultraviolet absorbing agent is 2-hydroxy-4-n-octoxybenzophenone.
As a further solution of the present invention: the fire retardant is one of aluminium hydroxide, magnesium hydroxide.
As a further solution of the present invention: the preparation method of the flame retardant plastics, steps are as follows:
1) each raw material is weighed according to the ratio；
2) it will be thoroughly mixed in polyethylene, polypropylene, polyphenylene sulfide investment high-speed mixer, mixing temperature control
System stirs 5-10min at 80-90 DEG C, and then modified micaceous powder, modified calcium carbonate, montmorillonite, diatomite, sodium phytate are added,
5-10min is stirred, coupling agent, toughener, ultraviolet absorbing agent, fire retardant stirring 10-20min are eventually adding；
3) the mixed material investment screw extruder stirred evenly step 2) squeezes out, and one area's temperature of screw extruder is
200-220 DEG C, two area's temperature are 220-240 DEG C, and three area's temperature are 220-240 DEG C, and four area's temperature are 220-240 DEG C, five Qu Wen
Degree is 225-245 DEG C, and six area's temperature are 225-245 DEG C, and seven area's temperature are 220-240 DEG C, and eight area's temperature are 220-240 DEG C, machine
Head temperature is 220-240 DEG C, screw speed 100-300r/min；
4) material strip squeezed out through step 3) removes the excessive moisture in material strip through the cooling traction of cooling water to air blower, then
It is granulated by pelleter to get required flame retardant plastics.
Compared with prior art, the beneficial effects of the present invention are: flame retardant plastics good flame retardation effect prepared by the present invention, oxygen refer to
Number is high and smoke density is low, by modified micaceous powder, modified calcium carbonate, diatomite and coupling agent, so that toughener, ultraviolet light be made to inhale
Receive agent and fire retardant with modified micaceous powder, modified calcium carbonate, diatomite filling and be dispersed in material, further
Fire-retardant, anti-aging, mechanical strength characteristics are improved, by the way that sodium phytate and montmorillonite is added, sodium phytate has preferable anti-oxidant
Property and anti-flammability, montmorillonite there is good barrier property, the two forms good synergistic effect, and sodium phytate changes montmorillonite
Property, thermal stability and compression strength are made it have, while sodium phytate distribution is more uniform, there are good market prospects.
Specific embodiment
Below in conjunction with specific embodiment, technical scheme in the embodiment of the invention is clearly and completely described, shows
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of flame retardant plastics, including below according to the raw material of parts by weight: 80 parts of polyethylene, poly- third
8 parts of alkene, 10 parts of polyphenylene sulfide, 6 parts of modified micaceous powder, 10 parts of modified calcium carbonate, 12 parts of montmorillonite, 6 parts of diatomite, coupling agent
0.2 part, 10 parts of toughener, 0.1 part of ultraviolet absorbing agent, 2 parts of sodium phytate, 0.5 part of fire retardant.
Wherein, the modified micaceous powder the preparation method is as follows: by mica powder temperature be 400 DEG C roast 2 hours, take roasting
Mica powder after burning is mixed with gamma-aminopropyl-triethoxy-silane according to mass ratio for 20:1, and ultrasonic disperse in 8 times of water is added
20min, supersonic frequency 40KHz, ultrasonic power 200W, obtain mixed liquor A, its gross mass 0.1% is added into mixed liquor A
Zinc borate, 0.2% ammonium polyphosphate stir 30min, and centrifugation is drying to obtain modified micaceous powder.
The modified calcium carbonate is put into the preparation method is as follows: calcium oxide and water are carried out mixing according to mass ratio 1:5
In reaction kettle, be stirred continuously processing 30min after mixed liquid B it is spare；The chloromethane of its gross mass 0.2% is added into mixed liquid B
Sour methyl esters, 0.1% nonylphenol polyoxyethylene ether；Be stirred continuously processing 20min after mixed liquor C it is spare；Lead into mixed liquor C
Enter excessive carbon dioxide gas, be then filtered, finally resulting filter residue is put into drying box after being dried 1h
Up to improvement calcium carbonate.
The coupling agent is titanate coupling agent.
The toughener is polyolefin elastomer.
The ultraviolet absorbing agent is 2-hydroxy-4-n-octoxybenzophenone.
The fire retardant is aluminium hydroxide.
In the present embodiment, the preparation method of the flame retardant plastics, steps are as follows:
1) each raw material is weighed according to the ratio；
2) it will be thoroughly mixed in polyethylene, polypropylene, polyphenylene sulfide investment high-speed mixer, mixing temperature control
System stirs 5min at 80 DEG C, then modified micaceous powder, modified calcium carbonate, montmorillonite, diatomite, sodium phytate is added, stirring
5min is eventually adding coupling agent, toughener, ultraviolet absorbing agent, fire retardant stirring 10min；
3) the mixed material investment screw extruder stirred evenly step 2) squeezes out, and one area's temperature of screw extruder is
200 DEG C, two area's temperature are 220 DEG C, and three area's temperature are 220 DEG C, and four area's temperature are 220 DEG C, and five area's temperature are 225 DEG C, six Qu Wen
Degree is 225 DEG C, and seven area's temperature are 220 DEG C, and eight area's temperature are 220 DEG C, and head temperature is 220 DEG C, screw speed 100r/min；
4) material strip squeezed out through step 3) removes the excessive moisture in material strip through the cooling traction of cooling water to air blower, then
It is granulated by pelleter to get required flame retardant plastics.
Embodiment 2
In the embodiment of the present invention, a kind of flame retardant plastics, including below according to the raw material of parts by weight: 85 parts of polyethylene, poly- third
9 parts of alkene, 12 parts of polyphenylene sulfide, 7 parts of modified micaceous powder, 11 parts of modified calcium carbonate, 13 parts of montmorillonite, 7 parts of diatomite, coupling agent
0.4 part, 12 parts of toughener, 0.2 part of ultraviolet absorbing agent, 3 parts of sodium phytate, 1 part of fire retardant.
Wherein, the modified micaceous powder the preparation method is as follows: by mica powder temperature be 450 DEG C roast 3 hours, take roasting
Mica powder after burning is mixed with gamma-aminopropyl-triethoxy-silane according to mass ratio for 20:1, and ultrasonic disperse in 9 times of water is added
20min, supersonic frequency 40KHz, ultrasonic power 250W, obtain mixed liquor A, its gross mass 0.1% is added into mixed liquor A
Zinc borate, 0.2% ammonium polyphosphate stir 30min, and centrifugation is drying to obtain modified micaceous powder.
The modified calcium carbonate is put into the preparation method is as follows: calcium oxide and water are carried out mixing according to mass ratio 1:5
In reaction kettle, be stirred continuously processing 30min after mixed liquid B it is spare；The chloromethane of its gross mass 0.2% is added into mixed liquid B
Sour methyl esters, 0.1% nonylphenol polyoxyethylene ether；Be stirred continuously processing 20min after mixed liquor C it is spare；Lead into mixed liquor C
Enter excessive carbon dioxide gas, be then filtered, finally resulting filter residue is put into drying box after being dried 1h
Up to improvement calcium carbonate.
The coupling agent is titanate coupling agent.
The toughener is polyolefin elastomer.
The ultraviolet absorbing agent is 2-hydroxy-4-n-octoxybenzophenone.
The fire retardant is aluminium hydroxide.
In the present embodiment, the preparation method of the flame retardant plastics, steps are as follows:
1) each raw material is weighed according to the ratio；
2) it will be thoroughly mixed in polyethylene, polypropylene, polyphenylene sulfide investment high-speed mixer, mixing temperature control
System stirs 5min at 90 DEG C, then modified micaceous powder, modified calcium carbonate, montmorillonite, diatomite, sodium phytate is added, stirring
5min is eventually adding coupling agent, toughener, ultraviolet absorbing agent, fire retardant stirring 10min；
3) the mixed material investment screw extruder stirred evenly step 2) squeezes out, and one area's temperature of screw extruder is
205 DEG C, two area's temperature are 225 DEG C, and three area's temperature are 225 DEG C, and four area's temperature are 225 DEG C, and five area's temperature are 230 DEG C, six Qu Wen
Degree is 230 DEG C, and seven area's temperature are 225 DEG C, and eight area's temperature are 225 DEG C, and head temperature is 225 DEG C, screw speed 150r/min；
4) material strip squeezed out through step 3) removes the excessive moisture in material strip through the cooling traction of cooling water to air blower, then
It is granulated by pelleter to get required flame retardant plastics.
Embodiment 3
In the embodiment of the present invention, a kind of flame retardant plastics, including below according to the raw material of parts by weight: 90 parts of polyethylene, poly- third
10 parts of alkene, 15 parts of polyphenylene sulfide, 9 parts of modified micaceous powder, 12 parts of modified calcium carbonate, 14 parts of montmorillonite, 8 parts of diatomite, coupling agent
0.5 part, 14 parts of toughener, 0.3 part of ultraviolet absorbing agent, 4 parts of sodium phytate, 1.5 parts of fire retardant.
Wherein, the modified micaceous powder the preparation method is as follows: by mica powder temperature be 450 DEG C roast 4 hours, take roasting
Mica powder after burning is mixed with gamma-aminopropyl-triethoxy-silane according to mass ratio for 20:1, and ultrasonic disperse in 9 times of water is added
25min, supersonic frequency 45KHz, ultrasonic power 300W, obtain mixed liquor A, its gross mass 0.2% is added into mixed liquor A
Zinc borate, 0.3% ammonium polyphosphate stir 35min, and centrifugation is drying to obtain modified micaceous powder.
The modified calcium carbonate is put into the preparation method is as follows: calcium oxide and water are carried out mixing according to mass ratio 1:6
In reaction kettle, be stirred continuously processing 35min after mixed liquid B it is spare；The chloromethane of its gross mass 0.3% is added into mixed liquid B
Sour methyl esters, 0.15% nonylphenol polyoxyethylene ether；Be stirred continuously processing 25min after mixed liquor C it is spare；Into mixed liquor C
It is passed through excessive carbon dioxide gas, is then filtered, finally resulting filter residue is put into drying box and is dried 1h
Afterwards up to improvement calcium carbonate.
The coupling agent is titanate coupling agent.
The toughener is polyolefin elastomer.
The ultraviolet absorbing agent is 2-hydroxy-4-n-octoxybenzophenone.
The fire retardant is magnesium hydroxide.
In the present embodiment, the preparation method of the flame retardant plastics, steps are as follows:
1) each raw material is weighed according to the ratio；
2) it will be thoroughly mixed in polyethylene, polypropylene, polyphenylene sulfide investment high-speed mixer, mixing temperature control
System stirs 8min at 85 DEG C, then modified micaceous powder, modified calcium carbonate, montmorillonite, diatomite, sodium phytate is added, stirring
8min is eventually adding coupling agent, toughener, ultraviolet absorbing agent, fire retardant stirring 15min；
3) the mixed material investment screw extruder stirred evenly step 2) squeezes out, and one area's temperature of screw extruder is
210 DEG C, two area's temperature are 230 DEG C, and three area's temperature are 230 DEG C, and four area's temperature are 230 DEG C, and five area's temperature are 235 DEG C, six Qu Wen
Degree is 235 DEG C, and seven area's temperature are 230 DEG C, and eight area's temperature are 230 DEG C, and head temperature is 230 DEG C, screw speed 200r/min；
4) material strip squeezed out through step 3) removes the excessive moisture in material strip through the cooling traction of cooling water to air blower, then
It is granulated by pelleter to get required flame retardant plastics.
Embodiment 4
In the embodiment of the present invention, a kind of flame retardant plastics, including below according to the raw material of parts by weight: 95 parts of polyethylene, poly- third
11 parts of alkene, 18 parts of polyphenylene sulfide, 11 parts of modified micaceous powder, 13 parts of modified calcium carbonate, 15 parts of montmorillonite, 9 parts of diatomite, coupling agent
0.6 part, 16 parts of toughener, 0.4 part of ultraviolet absorbing agent, 4 parts of sodium phytate, 2 parts of fire retardant.
Wherein, the modified micaceous powder the preparation method is as follows: by mica powder temperature be 480 DEG C roast 5 hours, take roasting
Mica powder after burning is mixed with gamma-aminopropyl-triethoxy-silane according to mass ratio for 20:1, and ultrasonic disperse in 9 times of water is added
30min, supersonic frequency 50KHz, ultrasonic power 350W, obtain mixed liquor A, its gross mass 0.3% is added into mixed liquor A
Zinc borate, 0.4% ammonium polyphosphate stir 40min, and centrifugation is drying to obtain modified micaceous powder.
The modified calcium carbonate is put into the preparation method is as follows: calcium oxide and water are carried out mixing according to mass ratio 1:6
In reaction kettle, be stirred continuously processing 40min after mixed liquid B it is spare；The chloromethane of its gross mass 0.4% is added into mixed liquid B
Sour methyl esters, 0.2% nonylphenol polyoxyethylene ether；Be stirred continuously processing 30min after mixed liquor C it is spare；Lead into mixed liquor C
Enter excessive carbon dioxide gas, be then filtered, finally resulting filter residue is put into drying box and is dried 1.5h
Afterwards up to improvement calcium carbonate.
The coupling agent is titanate coupling agent.
The toughener is polyolefin elastomer.
The ultraviolet absorbing agent is 2-hydroxy-4-n-octoxybenzophenone.
The fire retardant is aluminium hydroxide.
In the present embodiment, the preparation method of the flame retardant plastics, steps are as follows:
1) each raw material is weighed according to the ratio；
2) it will be thoroughly mixed in polyethylene, polypropylene, polyphenylene sulfide investment high-speed mixer, mixing temperature control
System stirs 10min at 90 DEG C, then modified micaceous powder, modified calcium carbonate, montmorillonite, diatomite, sodium phytate is added, stirring
10min is eventually adding coupling agent, toughener, ultraviolet absorbing agent, fire retardant stirring 20min；
3) the mixed material investment screw extruder stirred evenly step 2) squeezes out, and one area's temperature of screw extruder is
215 DEG C, two area's temperature are 235 DEG C, and three area's temperature are 235 DEG C, and four area's temperature are 235 DEG C, and five area's temperature are 240 DEG C, six Qu Wen
Degree is 240 DEG C, and seven area's temperature are 235 DEG C, and eight area's temperature are 235 DEG C, and head temperature is 235 DEG C, screw speed 250r/min；
4) material strip squeezed out through step 3) removes the excessive moisture in material strip through the cooling traction of cooling water to air blower, then
It is granulated by pelleter to get required flame retardant plastics.
Embodiment 5
In the embodiment of the present invention, a kind of flame retardant plastics, including below according to the raw material of parts by weight: 100 parts of polyethylene, poly- third
12 parts of alkene, 20 parts of polyphenylene sulfide, 12 parts of modified micaceous powder, 14 parts of modified calcium carbonate, 16 parts of montmorillonite, 10 parts of diatomite, coupling
0.8 part of agent, 18 parts of toughener, 0.5 part of ultraviolet absorbing agent, 6 parts of sodium phytate, 2.5 parts of fire retardant.
Wherein, the modified micaceous powder the preparation method is as follows: by mica powder temperature be 500 DEG C roast 6 hours, take roasting
Mica powder after burning is mixed with gamma-aminopropyl-triethoxy-silane according to mass ratio for 20:1, and ultrasound point in 10 times of water is added
30min is dissipated, supersonic frequency 50KHz, ultrasonic power 400W obtain mixed liquor A, its gross mass added into mixed liquor A
0.3% zinc borate, 0.4% ammonium polyphosphate stir 40min, and centrifugation is drying to obtain modified micaceous powder.
The modified calcium carbonate is put into the preparation method is as follows: calcium oxide and water are carried out mixing according to mass ratio 1:6
In reaction kettle, be stirred continuously processing 40min after mixed liquid B it is spare；The chloromethane of its gross mass 0.4% is added into mixed liquid B
Sour methyl esters, 0.2% nonylphenol polyoxyethylene ether；Be stirred continuously processing 30min after mixed liquor C it is spare；Lead into mixed liquor C
Enter excessive carbon dioxide gas, be then filtered, finally resulting filter residue is put into drying box and is dried 1.5h
Afterwards up to improvement calcium carbonate.
The coupling agent is titanate coupling agent.
The toughener is polyolefin elastomer.
The ultraviolet absorbing agent is 2-hydroxy-4-n-octoxybenzophenone.
The fire retardant is magnesium hydroxide.
In the present embodiment, the preparation method of the flame retardant plastics, steps are as follows:
1) each raw material is weighed according to the ratio；
2) it will be thoroughly mixed in polyethylene, polypropylene, polyphenylene sulfide investment high-speed mixer, mixing temperature control
System stirs 10min at 90 DEG C, then modified micaceous powder, modified calcium carbonate, montmorillonite, diatomite, sodium phytate is added, stirring
10min is eventually adding coupling agent, toughener, ultraviolet absorbing agent, fire retardant stirring 20min；
3) the mixed material investment screw extruder stirred evenly step 2) squeezes out, and one area's temperature of screw extruder is
220 DEG C, two area's temperature are 240 DEG C, and three area's temperature are 240 DEG C, and four area's temperature are 240 DEG C, and five area's temperature are 245 DEG C, six Qu Wen
Degree is 245 DEG C, and seven area's temperature are 240 DEG C, and eight area's temperature are 240 DEG C, and head temperature is 240 DEG C, screw speed 300r/min；
4) material strip squeezed out through step 3) removes the excessive moisture in material strip through the cooling traction of cooling water to air blower, then
It is granulated by pelleter to get required flame retardant plastics.
Comparative example 1
Compared with Example 3, sodium phytate is free of, other are same as Example 3.
Comparative example 2
Compared with Example 3, not montmorillonoid-containing, other are same as Example 3.
Comparative example 3
Compared with Example 3, sodium phytate and montmorillonite are free of, other are same as Example 3.
Performance verification
The flame retardant property of flame retardant plastics is measured by measurement oxygen index (OI) and flue gas generating rate, the measurement side of oxygen index (OI)
Method is carried out referring to GB2406-2008, the measuring method of flue gas generating rate according to GB/T20284-2006.
As can be seen from the above results, flame retardant plastics prepared by the present invention has good flame retardant effect, especially by
The synergistic effect of sodium phytate and montmorillonite so that oxygen index (OI) is high and smoke density is low, pass through modified micaceous powder, modified calcium carbonate, silicon
Diatomaceous earth and coupling agent, to make toughener, ultraviolet absorbing agent and fire retardant with modified micaceous powder, modified calcium carbonate, diatom
Soil filling and be dispersed in material, further improve fire-retardant, anti-aging, mechanical strength characteristics, pass through be added plant
Sour sodium and montmorillonite, sodium phytate have preferable inoxidizability and anti-flammability, and montmorillonite has good barrier property, and the two is formed
Good synergistic effect, sodium phytate are modified montmorillonite, make it have thermal stability and compression strength, have good city
Field prospect.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of flame retardant plastics, which is characterized in that including below according to the raw material of parts by weight: 80-100 parts of polyethylene, polypropylene
8-12 parts, 10-20 parts of polyphenylene sulfide, powder 6-12 parts modified micaceous, 10-14 parts of modified calcium carbonate, 12-16 parts of montmorillonite, diatom
It is 6-10 parts native, 0.2-0.8 parts of coupling agent, 10-18 parts of toughener, 0.1-0.5 parts of ultraviolet absorbing agent, 2-6 parts of sodium phytate, fire-retardant
0.5-2.5 parts of agent.
2. flame retardant plastics according to claim 1, which is characterized in that including below according to the raw material of parts by weight: polyethylene
85-95 parts, 9-11 parts of polypropylene, 12-18 parts of polyphenylene sulfide, powder 7-11 parts modified micaceous, 11-13 parts of modified calcium carbonate, cover it is de-
13-15 parts native, 7-9 parts of diatomite, 12-16 parts of toughener, 0.2-0.4 parts of ultraviolet absorbing agent, is planted at 0.4-0.6 parts of coupling agent
Sour sodium 3-4 parts, 1-2 parts of fire retardant.
3. flame retardant plastics according to claim 2, which is characterized in that including below according to the raw material of parts by weight: polyethylene
90 parts, 10 parts of polypropylene, 15 parts of polyphenylene sulfide, 9 parts of modified micaceous powder, 12 parts of modified calcium carbonate, 14 parts of montmorillonite, diatomite 8
Part, 0.5 part of coupling agent, 14 parts of toughener, 0.3 part of ultraviolet absorbing agent, 4 parts of sodium phytate, 1.5 parts of fire retardant.
4. flame retardant plastics according to claim 1, which is characterized in that the modified micaceous powder the preparation method is as follows: will
Mica powder temperature be 400-500 DEG C roasting 2-6 hours, take roast after mica powder and gamma-aminopropyl-triethoxy-silane by
It is 20:1 mixing according to mass ratio, ultrasonic disperse 20-30min in 8-10 times of water, supersonic frequency 40-50KHz, ultrasonic function is added
Rate is 200-400W, obtains mixed liquor A, its gross mass 0.1-0.3% zinc borate, the poly- phosphorus of 0.2-0.4% are added into mixed liquor A
Sour ammonium stirs 30-40min, and centrifugation is drying to obtain modified micaceous powder.
5. flame retardant plastics according to claim 1, which is characterized in that the modified calcium carbonate the preparation method is as follows: will
Calcium oxide and water carry out mixing according to mass ratio 1:5-6 and are put into reaction kettle, must mix after being stirred continuously processing 30-40min
Liquid B is spare；The methylchloroformate of its gross mass 0.2-0.4%, the polyoxyethylene nonyl phenyl second of 0.1-0.2% are added into mixed liquid B
Alkene ether；Be stirred continuously processing 20-30min after mixed liquor C it is spare；Excessive carbon dioxide gas is passed through into mixed liquor C, so
After be filtered, finally by resulting filter residue be put into drying box be dried 1-1.5h after up to improve calcium carbonate.
6. flame retardant plastics according to claim 1, which is characterized in that the coupling agent is titanate coupling agent.
7. flame retardant plastics according to claim 1, which is characterized in that the toughener is polyolefin elastomer.
8. flame retardant plastics according to claim 1, which is characterized in that the ultraviolet absorbing agent is that 2- hydroxyl -4- is just pungent
Oxygroup benzophenone.
9. flame retardant plastics according to claim 1, which is characterized in that the fire retardant is aluminium hydroxide, in magnesium hydroxide
One kind.
10. the preparation method of the flame retardant plastics as described in claim 1-9 is any, which is characterized in that steps are as follows:
1) each raw material is weighed according to the ratio；
2) it will be thoroughly mixed in polyethylene, polypropylene, polyphenylene sulfide investment high-speed mixer, mixing temperature control exists
80-90 DEG C, 5-10min is stirred, then modified micaceous powder, modified calcium carbonate, montmorillonite, diatomite, sodium phytate are added, stirring
5-10min is eventually adding coupling agent, toughener, ultraviolet absorbing agent, fire retardant stirring 10-20min；
3) the mixed material investment screw extruder stirred evenly step 2) squeezes out, and one area's temperature of screw extruder is 200-
220 DEG C, two area's temperature are 220-240 DEG C, and three area's temperature are 220-240 DEG C, and four area's temperature are 220-240 DEG C, and five area's temperature are
225-245 DEG C, six area's temperature are 225-245 DEG C, and seven area's temperature are 220-240 DEG C, and eight area's temperature are 220-240 DEG C, head temperature
Degree is 220-240 DEG C, screw speed 100-300r/min；
4) material strip squeezed out through step 3) removes the excessive moisture in material strip, then by cutting through the cooling traction of cooling water to air blower
Grain machine is granulated to get required flame retardant plastics.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111187027A (en) * | 2019-03-29 | 2020-05-22 | 广州华隆建筑材料有限公司 | Concrete reinforcing agent and preparation method thereof |
| CN112646383A (en) * | 2020-12-21 | 2021-04-13 | 中铁七局集团第三工程有限公司 | Preparation method of high-performance stable PPA (polyphthalamide) and SBS (styrene butadiene styrene) composite modified asphalt |
| CN112829417A (en) * | 2021-01-04 | 2021-05-25 | 厦门市雅宝汇装饰石材有限公司 | Aluminum-plastic plate and composite processing technology thereof |
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| CN114656726A (en) * | 2021-06-11 | 2022-06-24 | 石河子大学 | Flame-retardant soft PVC composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111187027A (en) * | 2019-03-29 | 2020-05-22 | 广州华隆建筑材料有限公司 | Concrete reinforcing agent and preparation method thereof |
| CN112646383A (en) * | 2020-12-21 | 2021-04-13 | 中铁七局集团第三工程有限公司 | Preparation method of high-performance stable PPA (polyphthalamide) and SBS (styrene butadiene styrene) composite modified asphalt |
| CN112829417A (en) * | 2021-01-04 | 2021-05-25 | 厦门市雅宝汇装饰石材有限公司 | Aluminum-plastic plate and composite processing technology thereof |
| CN113403512A (en) * | 2021-06-03 | 2021-09-17 | 辽宁银捷装备科技股份有限公司 | Heat-resistant cast aluminum alloy and preparation method thereof |
| CN114656726A (en) * | 2021-06-11 | 2022-06-24 | 石河子大学 | Flame-retardant soft PVC composite material and preparation method thereof |
| CN114656726B (en) * | 2021-06-11 | 2024-04-05 | 石河子大学 | Flame-retardant soft PVC composite material and preparation method thereof |
| CN114149645A (en) * | 2021-11-25 | 2022-03-08 | 浙江亚厦装饰股份有限公司 | Fireproof PVC plate for partition wall and manufacturing method thereof |
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Application publication date: 20190308 |