CN109206887A - A kind of polyphenylene oxide Composite Fame-retardant Material and preparation method thereof - Google Patents
A kind of polyphenylene oxide Composite Fame-retardant Material and preparation method thereof Download PDFInfo
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- CN109206887A CN109206887A CN201810983506.7A CN201810983506A CN109206887A CN 109206887 A CN109206887 A CN 109206887A CN 201810983506 A CN201810983506 A CN 201810983506A CN 109206887 A CN109206887 A CN 109206887A
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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
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08L71/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
- C08L71/12—Polyphenylene oxides
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
- H01B3/427—Polyethers
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical Kinetics & Catalysis (AREA)
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of polyphenylene oxide Composite Fame-retardant Materials and preparation method thereof, in parts by weight, including 60-80 parts of polyphenylene oxide, 10-15 parts of polystyrene, 5-10 parts of SEBS, 10-15 parts of pentaerythritol oleate, 8-10 parts of trioctyl trimellitate (TOTM), 3-5 parts of polytetrafluoroethylene (PTFE), 1-2 parts of antioxidant, 1-2 parts of anti-aging agent, 5-9 parts of fire retardant, 2-10 parts of chlorinated paraffin and 6-8 parts of calcium carbonate.The present invention improves particle dispersion degree so that the hydrophobicity on magnalium hydrotalcite surface enhances using modified magnalium hydrotalcite, disperses magnalium hydrotalcite in the material more evenly, flame retardant property enhancing；Improve the compatibility and dispersibility of magnalium hydrotalcite, when material is stretched, modified magnalium hydrotalcite particle plays the role of crosslinking points, keep stress distribution uniform, the modification magnalium hydrotalcite of addition also can be used as nucleating agent, enhances the heterogeneous nucleating effect of material, refines its crystal grain more, the mechanical property for increasing composite material improves, and stretching, bending and impact strength, which have, to be improved.
Description
Technical field
The present invention relates to a kind of polyphenylene oxide Composite Fame-retardant Materials and preparation method thereof, belong to cable material field.
Background technique
Wire and cable plays the part of critically important role, tradition electricity as electric energy and information transport vehicle in the national economic development
Line cable cover(ing) and insulating materials mainly use PVC, polyolefin and rubber etc..PVC has very successful in wire and cable field
Application, but PVC burning when can generate a large amount of flue gas and poison gas, with economic development, environmental protection and awareness of safety
Raising, people begin look for the substitute of PVC material.Low-smoke halogen-free polyolefin material is as very successful environment friendly non-halogen material
It is gradually paid close attention to and is applied, but low-smoke halogen-free polyolefin material is due to being filled with a large amount of magnesium hydroxide or aluminium hydroxide,
The hardness of packing material is very high, causes cable laying difficult, and although a large amount of fire retardant is filled with, in cable fire
The performance of aspect is unsatisfactory, although very high oxygen index (OI) can be accomplished by being mainly manifested in, cable is not easy to extinguish in burning,
It is more difficult to pass through American Standard single vertical burning VW-1 and bunched burning test.Rubber is good cable sheath material, but it adds
Work is cumbersome, and cannot recycle, so nor ideal material.For flame retardant effect, the low smoke density obtained,
There is lower hardness again simultaneously and can recycle, sight has gradually been turned to elastomer by people and engineering plastics are led
Domain.Application publication number CN 103910990A, denomination of invention: a kind of thermoplastic halogen-free flame retarding polyphenylene oxide elastomer cable material and its
Preparation method, the CABLE MATERIALS are used for soft type wire and cable coat, which contains following components: polyphenylene oxide resin powder, benzene
Ethylene based elastomers, plasticizer, polyolefin elastomer compound P-N type fire retardant, antioxidant, lubricant；By above-mentioned raw materials group
Divide and stir evenly in a high speed mixer, then squeezed out through double screw extruder, water stretching and granulation, then moisture drying is packed, i.e.,
At thermoplastic halogen-free flame retarding polyphenylene oxide elastomer cable material finished product.The elasticity of thermoplastic halogen-free flame retarding polyphenylene oxide designed by the invention
Body CABLE MATERIALS is with processing performance is good, halogen-free flameproof, density is low, tensile strength is high, scratch resistance is good, flexibility is good, low temperature resistant
Property is good, can smoothly squeeze out and not decompose under 200 DEG C of -280 DEG C of processing temperatures, in+85 DEG C of hot and humid environments of 98% humidity
Lower 7 days sample surface flawlesses, surface are without excellent performances such as precipitates.But the patent is to compound P-N type fire retardant as resistance
Ingredient is fired, overall flame effect is bad.
Summary of the invention
The present invention provides a kind of polyphenylene oxide Composite Fame-retardant Materials and preparation method thereof, and it is multiple to solve existing polyphenylene oxide
Close the bad problem of flame-proof cable material flame retardant property.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of polyphenylene oxide Composite Fame-retardant Material, in parts by weight, including 60-80 parts of polyphenylene oxide, polystyrene 10-
15 parts, 5-10 parts of SEBS, 10-15 parts of pentaerythritol oleate, 8-10 parts of trioctyl trimellitate (TOTM), 3-5 parts of polytetrafluoroethylene (PTFE),
1-2 parts of antioxidant, 1-2 parts of anti-aging agent, 5-9 parts of fire retardant, 2-10 parts of chlorinated paraffin and 6-8 parts of calcium carbonate.
Further, a preferred embodiment of the present invention are as follows: the anti-aging agent is anti-aging agent CPPD.
Further, a preferred embodiment of the present invention are as follows: the antioxidant is antioxidant 1010.
Further, a preferred embodiment of the present invention are as follows: the fire retardant is the modification magnalium hydrotalcite, described
Modification magnalium hydrotalcite be added in 100ml water the preparation method comprises the following steps: weighing 20g magnalium hydrotalcite, ultrasonic 5-10min, so
After be heated to 80 DEG C, be added 1gSTPP, 0.2g fatty alcohol polyoxyethylene ether and 0.3g octadecylamine hydrochloride, ultrasonic 15-20min,
Washing filters, and 100 DEG C of dry 8-10h are to get modified magnalium hydrotalcite.
The preparation method of polyphenylene oxide Composite Fame-retardant Material of the invention, comprising the following steps:
(1) polyphenylene oxide, polystyrene and polytetrafluoroethylene (PTFE) are mixed and is just swooned, it, will using double screw extruder extruding pelletization
After particle drying, the polyphenylene oxide composite powder for 80-100 mesh mesh screen of pulverizing；
(2) polyphenylene oxide composite powder is uniformly mixed with surplus material, is kneaded in mixing machine, mix temperature 80-120
DEG C, revolving speed 80-100r/min mixes time 10-15min；
(3) double screw extruder is added in the material after mixing, melting extrusion is granulated, and extruder temperature of each section is when extrusion
200-300 DEG C, screw speed 100-150r/min, obtain the polyphenylene oxide Composite Fame-retardant Material.
Further, a preferred embodiment of the present invention are as follows: double screw extruder extruding pelletization is specific in the step (1)
Parameter are as follows: screw speed 80r/min, each area's temperature are as follows: 220 DEG C of an area, 240 DEG C of 2nd area, 260 DEG C of 3rd area, 4th area are to 9th area
280 DEG C, 275 DEG C of head.
Further, a preferred embodiment of the present invention are as follows: each area's temperature of double screw extruder in the step (3) are as follows:
One 200 DEG C of area, 220 DEG C of 2nd area, 240 DEG C of 3rd area, 4th area to 250 DEG C of 5th area, 6th area to 8th area are 260 DEG C, 9th area are 280 DEG C,
265 DEG C of head.
Beneficial effects of the present invention:
It is inorganic fire-retarded for high polymer it is fire-retardant when, due to its poor compatibility between matrix resin and flame retarding efficiency
Low, for the requirement for making the flame retardant property of polyolefine material reach certain, the additive amount of hydroxide usually requires more than 50%, to material
The Effect on Mechanical Properties of material is very big.The present invention is using modified magnalium hydrotalcite, so that the hydrophobicity on magnalium hydrotalcite surface enhances,
Particle dispersion degree is improved, disperses magnalium hydrotalcite in the material more evenly, flame retardant property enhancing flame retardant property is obviously improved；
The compatibility and dispersibility for improving magnalium hydrotalcite, when material is stretched, modified magnalium hydrotalcite particle plays friendship
The effect for joining point, keeps stress distribution uniform.Meanwhile the modification magnalium hydrotalcite of addition also can be used as nucleating agent, to the different of material
The enhancing of phase nucleation, refines its crystal grain more, and the mechanical property for increasing composite material improves, stretching, bending and impact strength
With raising.
Polyphenylene oxide resin rigidity with higher itself, good electrical insulating property and water resistance.SEBS is with polystyrene
For end segment, the ethylene-butene copolymer obtained using polybutadiene plus hydrogen is the linear tri-block copolymer of intermediate elastic block.
SEBS is free of unsaturated double-bond, therefore with good stability and resistance to ag(e)ing.Pass through polyphenylene oxide, polystyrene, SEBS, season
Penta tetrol oleate, trioctyl trimellitate (TOTM) and polytetrafluoroethylcombination combination, adjust the component of material, form one in material internal
Kind three-dimensional interpenetrating polymer network structure can reduce the hardness and enhancing flexibility of co-mixing system, improve thermal stability, improve blend
Comprehensive mechanical performance and electric property.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
Embodiment 1
A kind of polyphenylene oxide Composite Fame-retardant Material, in parts by weight, including 60 parts of polyphenylene oxide, 15 parts of polystyrene,
10 parts of SEBS, 15 parts of pentaerythritol oleate, 8 parts of trioctyl trimellitate (TOTM), 5 parts of polytetrafluoroethylene (PTFE), 1 part of antioxidant, prevent always
2 parts of agent, 5 parts of fire retardant, 2 parts of chlorinated paraffin and 8 parts of calcium carbonate.
Polyphenylene oxide uses the PPO540V of Japanese Asahi Chemical Industry.Polystyrene uses the HIPS466F of German BASF.SEBS is adopted
The SEBS-G1660 risen with section of the U.S..Polytetrafluoroethylene (PTFE) uses the PTFE MP1100 powder of Dupont.
Anti-aging agent is anti-aging agent CPPD.
Antioxidant is antioxidant 1010.
Fire retardant is modified magnalium hydrotalcite, the modification magnalium hydrotalcite the preparation method comprises the following steps: weighing 20g magnalium water
Talcum is added in 100ml water, ultrasonic 5min, is then heated to 80 DEG C, be added 1gSTPP, 0.2g fatty alcohol polyoxyethylene ether and
0.3g octadecylamine hydrochloride, ultrasonic 15min, washing filter, and 100 DEG C of dry 8h are to get modified magnalium hydrotalcite.
Preparation method, comprising the following steps:
(1) polyphenylene oxide, polystyrene and polytetrafluoroethylene (PTFE) are mixed and is just swooned, it, will using double screw extruder extruding pelletization
After particle drying, the polyphenylene oxide composite powder for 80-100 mesh mesh screen of pulverizing, double screw extruder extruding pelletization is specifically joined
Number are as follows: screw speed 80r/min, each area's temperature are as follows: 220 DEG C of an area, 240 DEG C of 2nd area, 260 DEG C of 3rd area, 4th area to 9th area are 280
DEG C, 275 DEG C of head；
(2) polyphenylene oxide composite powder is uniformly mixed with surplus material, is kneaded in mixing machine, mix temperature is 80 DEG C, is turned
Speed is 100r/min, mixes time 15min；
(3) double screw extruder is added in the material after mixing, melting extrusion is granulated, and extruder temperature of each section is when extrusion
200-300 DEG C, screw speed 100r/min, each area's temperature of double screw extruder are as follows: 200 DEG C of an area, 220 DEG C of 2nd area, 3rd area
240 DEG C, 4th area to 250 DEG C of 5th area, 6th area to 8th area be 260 DEG C, 9th area are 280 DEG C, 265 DEG C of head, obtain the polyphenylene oxide
Composite Fame-retardant Material.
Embodiment 2
A kind of polyphenylene oxide Composite Fame-retardant Material, in parts by weight, including 70 parts of polyphenylene oxide, 13 parts of polystyrene,
5 parts of SEBS, 10 parts of pentaerythritol oleate, 9 parts of trioctyl trimellitate (TOTM), 4 parts of polytetrafluoroethylene (PTFE), 2 parts of antioxidant, prevent always
1 part of agent, 6 parts of fire retardant, 6 parts of chlorinated paraffin and 7 parts of calcium carbonate.
Polyphenylene oxide uses the PPO540V of Japanese Asahi Chemical Industry.Polystyrene uses the HIPS466F of German BASF.SEBS is adopted
The SEBS-G1660 risen with section of the U.S..Polytetrafluoroethylene (PTFE) uses the PTFE MP1100 powder of Dupont.
Anti-aging agent is anti-aging agent CPPD.
Antioxidant is antioxidant 1010.
Fire retardant is modified magnalium hydrotalcite, the modification magnalium hydrotalcite the preparation method comprises the following steps: weighing 20g magnalium water
Talcum is added in 100ml water, ultrasonic 10min, is then heated to 80 DEG C, and 1gSTPP, 0.2g fatty alcohol polyoxyethylene ether is added
With 0.3g octadecylamine hydrochloride, ultrasonic 20min, washing is filtered, and 100 DEG C of dry 10h are to get modified magnalium hydrotalcite.
Preparation method, comprising the following steps:
(1) polyphenylene oxide, polystyrene and polytetrafluoroethylene (PTFE) are mixed and is just swooned, it, will using double screw extruder extruding pelletization
After particle drying, the polyphenylene oxide composite powder for 80-100 mesh mesh screen of pulverizing, double screw extruder extruding pelletization is specifically joined
Number are as follows: screw speed 80r/min, each area's temperature are as follows: 220 DEG C of an area, 240 DEG C of 2nd area, 260 DEG C of 3rd area, 4th area to 9th area are 280
DEG C, 275 DEG C of head；
(2) polyphenylene oxide composite powder is uniformly mixed with surplus material, is kneaded in mixing machine, mix temperature is 120 DEG C, is turned
Speed is 80r/min, mixes time 10min；
(3) double screw extruder is added in the material after mixing, melting extrusion is granulated, and extruder temperature of each section is when extrusion
200-300 DEG C, screw speed 150r/min, each area's temperature of double screw extruder are as follows: 200 DEG C of an area, 220 DEG C of 2nd area, 3rd area
240 DEG C, 4th area to 250 DEG C of 5th area, 6th area to 8th area be 260 DEG C, 9th area are 280 DEG C, 265 DEG C of head, obtain the polyphenylene oxide
Composite Fame-retardant Material.
Embodiment 3
A kind of polyphenylene oxide Composite Fame-retardant Material, in parts by weight, including 80 parts of polyphenylene oxide, 10 parts of polystyrene,
SEBS8 parts, it is 13 parts of pentaerythritol oleate, 10 parts of trioctyl trimellitate (TOTM), 3 parts of polytetrafluoroethylene (PTFE), 2 parts of antioxidant, anti-old
1 part of agent, 9 parts of fire retardant, 10 parts of chlorinated paraffin and 6 parts of calcium carbonate.
Polyphenylene oxide uses the PPO540V of Japanese Asahi Chemical Industry.Polystyrene uses the HIPS466F of German BASF.SEBS is adopted
The SEBS-G1660 risen with section of the U.S..Polytetrafluoroethylene (PTFE) uses the PTFE MP1100 powder of Dupont.
Anti-aging agent is anti-aging agent CPPD.
Antioxidant is antioxidant 1010.
Fire retardant is modified magnalium hydrotalcite, the modification magnalium hydrotalcite the preparation method comprises the following steps: weighing 20g magnalium water
Talcum is added in 100ml water, ultrasonic 8min, is then heated to 80 DEG C, be added 1gSTPP, 0.2g fatty alcohol polyoxyethylene ether and
0.3g octadecylamine hydrochloride, ultrasonic 20min, washing filter, and 100 DEG C of dry 9h are to get modified magnalium hydrotalcite.
Preparation method, comprising the following steps:
(1) polyphenylene oxide, polystyrene and polytetrafluoroethylene (PTFE) are mixed and is just swooned, it, will using double screw extruder extruding pelletization
After particle drying, the polyphenylene oxide composite powder for 80-100 mesh mesh screen of pulverizing, double screw extruder extruding pelletization is specifically joined
Number are as follows: screw speed 80r/min, each area's temperature are as follows: 220 DEG C of an area, 240 DEG C of 2nd area, 260 DEG C of 3rd area, 4th area to 9th area are 280
DEG C, 275 DEG C of head；
(2) polyphenylene oxide composite powder is uniformly mixed with surplus material, is kneaded in mixing machine, mix temperature is 100 DEG C, is turned
Speed is 100r/min, mixes time 10min；
(3) double screw extruder is added in the material after mixing, melting extrusion is granulated, and extruder temperature of each section is when extrusion
200-300 DEG C, screw speed 130r/min, each area's temperature of double screw extruder are as follows: 200 DEG C of an area, 220 DEG C of 2nd area, 3rd area
240 DEG C, 4th area to 250 DEG C of 5th area, 6th area to 8th area be 260 DEG C, 9th area are 280 DEG C, 265 DEG C of head, obtain the polyphenylene oxide
Composite Fame-retardant Material.
Performance indicator measurement:
Tensile strength and elongation are tested by GB/T1040.3-2006；Oxygen index (OI): by GB/T2406.2-2008 into
Row detection；Vertical combustion: according to GB/T2408-2008；Smoke density test sample: according to GB8323.2-2008；Heat ageing: system
Standby dumbbell plate, then sample is put into drying 24 hours in drier, aging chamber is adjusted to set temperature, by sample hook by weighing
Sub- hook is hung vertically in well the middle part of ageing oven, and sample mutual spacing is not less than 20mm, is at effective workspace, then
Aging is carried out according to setting time, it is specified that immediately putting back to sample taking-up in drier after temperature and time processing, and dry 24 is small
When after take out weighing.Then aging post-tensioning intensity and elongation are measured, and calculates change rate and weight-loss ratio.
Polyphenylene oxide Composite Fame-retardant Material of the invention under the additive amount of lower fire retardant, have excellent mechanics,
Heat ageing and flame retardant property.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of polyphenylene oxide Composite Fame-retardant Material, it is characterised in that: in parts by weight, including it is 60-80 parts of polyphenylene oxide, poly-
10-15 parts of styrene, 5-10 parts of SEBS, 10-15 parts of pentaerythritol oleate, 8-10 parts of trioctyl trimellitate (TOTM), polytetrafluoroethyl-ne
3-5 parts of alkene, 1-2 parts of antioxidant, 1-2 parts of anti-aging agent, 5-9 parts of fire retardant, 2-10 parts of chlorinated paraffin and 6-8 parts of calcium carbonate.
2. a kind of polyphenylene oxide Composite Fame-retardant Material according to claim 1, it is characterised in that: the anti-aging agent is anti-
Old agent CPPD.
3. a kind of polyphenylene oxide Composite Fame-retardant Material according to claim 1, it is characterised in that: the antioxidant
For antioxidant 1010.
4. a kind of polyphenylene oxide Composite Fame-retardant Material according to claim 1, it is characterised in that: the fire retardant is
The modification magnalium hydrotalcite, the modification magnalium hydrotalcite are added to the preparation method comprises the following steps: weighing 20g magnalium hydrotalcite
In 100ml water, ultrasonic 5-10min is then heated to 80 DEG C, and 1gSTPP, 0.2g fatty alcohol polyoxyethylene ether and 0.3g ten is added
Eight amine hydrochlorates, ultrasonic 15-20min, washing filter, and 100 DEG C of dry 8-10h are to get modified magnalium hydrotalcite.
5. a kind of preparation method of polyphenylene oxide Composite Fame-retardant Material according to any one of claims 1-4, feature exist
In, comprising the following steps:
(1) polyphenylene oxide, polystyrene and polytetrafluoroethylene (PTFE) are mixed and is just swooned, using double screw extruder extruding pelletization, by particle
After drying, the polyphenylene oxide composite powder for 80-100 mesh mesh screen of pulverizing；
(2) polyphenylene oxide composite powder is uniformly mixed with surplus material, is kneaded in mixing machine, mix temperature is 80-120 DEG C, is turned
Speed is 80-100r/min, mixes time 10-15min；
(3) double screw extruder is added in the material after mixing, melting extrusion is granulated, and extruder temperature of each section is when extrusion
200-300 DEG C, screw speed 100-150r/min, obtain the polyphenylene oxide Composite Fame-retardant Material.
6. the preparation method of polyphenylene oxide Composite Fame-retardant Material according to claim 5, it is characterised in that: the step
Suddenly double screw extruder extruding pelletization design parameter in (1) are as follows: 80 r/min of screw speed, each area's temperature are as follows: 220 DEG C of an area,
Two 240 DEG C of areas, 260 DEG C of 3rd area, 4th area to 9th area are 280 DEG C, 275 DEG C of head.
7. the preparation method of polyphenylene oxide Composite Fame-retardant Material according to claim 5, it is characterised in that: the step
Suddenly each area's temperature of double screw extruder in (3) are as follows: 200 DEG C of an area, 220 DEG C of 2nd area, 240 DEG C of 3rd area, 4th area to 250 DEG C of 5th area,
6th area to 8th area are 260 DEG C, 9th area are 280 DEG C, 265 DEG C of head.
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