CN101792585B - Flame-retardant polycarbonate composition and preparation method thereof - Google Patents
Flame-retardant polycarbonate composition and preparation method thereof Download PDFInfo
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- CN101792585B CN101792585B CN201010130280XA CN201010130280A CN101792585B CN 101792585 B CN101792585 B CN 101792585B CN 201010130280X A CN201010130280X A CN 201010130280XA CN 201010130280 A CN201010130280 A CN 201010130280A CN 101792585 B CN101792585 B CN 101792585B
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Abstract
The invention relates to a flame-retardant polycarbonate composition and a preparation method thereof. The flame-retardant polycarbonate composition comprises the following components in parts by weight: 100 parts of polycarbonate, 1 to 10 parts of organosilicon flame retardant, 0.1 to 2 parts of sulfonate flame retardant, 0.1 to 2 parts of inorganic synergistic flame retardant, 0.1 to 2 parts of antifogging agent and 0.3 to 3 parts of compound antioxygen. The organosilicon flame retardant, the sulfonate flame retardant, the inorganic synergistic flame retardant and the polycarbonate are melted and blended to prepare a flame-retardant master batch the total mass concentration of which is 1.2 to 14 percent; then the flame-retardant master batch is melted and blended with the polycarbonate,the antifogging agent and the compound antioxygen to prepare the flame-retardant polycarbonate composition. The flame-retardant polycarbonate composition has high flame retarding performance and high heat resistance, has good heat resistance when being used under the condition of high temperature, does not contain halogen and is ultrathin and can enable the flame retardant property of an insulation spacer the thickness of which is 0.50mm to reach UL94 VTMO level; and the heat-resisting temperature is 130 DEG C, and meanwhile, the flame-retardant polycarbonate composition meets the requirements of the electronic and electrical field on the flame retarding and heat resistance of the insulation spacer.
Description
Technical field
A kind of flame retardant polycarbonate composition of the present invention and preparation method thereof belongs to the fire-retardant combination field, relates to a kind of halogen-free flameproof high heat polycarbonates composition that is used for using on the electronic electric equipment.
Background technology
In the flourishing modern society of science and technology, the caused fire of electronic electric equipment becomes the biggest threat of people's safety of life and property, this class fire plurality be since in overheated, electric leakage, short circuit, spark and the electric installation that ignites such as aging combustible insulating polymeric material cause.For this reason, countries in the world have successively been put into effect rules flame retardant properties, resistance toheat and the electric property etc. of the insulating polymeric material that uses on the electronic electric equipment have been made harsh regulation.Halogen flame flame retarding efficiency height, can make insulating polymeric material satisfy the requirement of these security regulations easily, but halogen flame can discharge the high malicious carcinogenic substance of dioxin and benzene furans in processing, burning and removal process at present, environment and HUMAN HEALTH are caused serious harm, and many electronic electric equipments enterprise has proposed the requirement of " zero halogen ".The high resistant burning and high heat-resisting the changing into of how to realize polymer insulation spacer material under Halogen and ultra-thin prerequisite are electronic electric equipment industry gordian technique anxious to be solved.
Polycarbonate (PC) resin has excellent mechanical property, resistance toheat and thermoplasticity processing characteristics, and the benzene ring structure on its main chain makes it have self-extinguishing, compares the high resistant burning and high heat-resistingization that are expected to most to take the lead in to realize under Halogen and the ultra-thin prerequisite with the gasket material of other kinds.Generally speaking, the flame retardant rating of fire-retardant product descends with the thickness attenuation, but has only the multinational patent report of several families to make halogen-free flame retardant PC reach the flame retardant rating of UL94V0 under the insulation spacer custom used thickness near 0.41mm at present.In patent US20040082691, can make the PC of 1.143mm reach fire-retardant UL94V0 level as AM General company (GE) with perfluoro butyl potassium sulfonate, benzene sulfonic acid sodium salt and tetrafluoroethylene, in patent US20050009968, make the PC of 1.6mm reach fire-retardant UL94V0 level, in patent US20070191519, make fire retardation PC reach the UL94V0 level at 2.5mm with potassium diphenylsulfone sulfonate, benzene sulfonic acid sodium salt and oligomeric phenyl propyl-siloxane with potassium diphenylsulfone sulfonate, benzene sulfonic acid sodium salt, ring body siloxanes.Company (Tsutsunaka) makes fire retardation PC reach the UL94VTM0 level at 0.1mm with phenyl methyl silicone resin, perfluoro butyl potassium sulfonate, potassium diphenylsulfone sulfonate and extraordinary carbon black synergistic in patent JP2002-104970 in Japan's tube, makes fire retardation PC reach the UL94V0 level at 0.8mm with triphenylphosphate, phenyl methyl silicone resin, perfluoro butyl potassium sulfonate and tetrafluoroethylene synergistic in patent JP2005-200588.Bayer A.G (BAYER) uses perfluoro butyl potassium sulfonate and potassium diphenylsulfone sulfonate and organo-siloxane synergistic respectively in patent DE4440684, make fire retardation PC reach the UL94V0 level at 1.5mm, in patent DE4122656, make the fire retardation PC sheet reach the UL94V0 level, make the fire retardation PC sheet reach the UL94V0 level with potassium diphenylsulfone sulfonate, boron salt and tetrafluoroethylene at patent DE4024670 with xenol, potassium diphenylsulfone sulfonate.SUMITOMO CHEMICAL company (SUMITOMO) makes fire retardation PC reach the UL94VTM0 level at 0.1mm at patent JP2007002075 with titanium dioxide, organopolysiloxane, arylalkyl silicone resin, organic metal salt and fibrous fluoropolymer, make the fire retardation PC film reach the UL94VTM0 level at JP2005-139127 with terpenes, phosphoric acid ester and fibrous fluoropolymer, make the fire retardation PC film reach the UL94VTM0 level with terpenes, arylalkyl silicone resin, organic metal salt and fibrous fluoropolymer at JP2005-138934.The fire-retardant requirement when though the prepared polycarbonate insulation spacer of above patent can satisfy certain thickness, the resistance toheat of using for ultra-thin insulation spacer under the hot conditions does not take in.The present invention adopts phosphite ester kind antioxidant and Hinered phenols antioxidant, benzofuranone kind antioxidant composite, utilizes the synergy between the composite antioxidant, realizes the high heat-stable requirement of ultra-thin insulation spacer.Phosphite ester kind antioxidant and hindered phenol primary antioxidant have good synergy, hindered phenol becomes hydroperoxide (RCOOH) after can catching polymkeric substance peroxylradicals (ROO), hydroperoxide have autocatalytic action to thermooxidative degradation, and hindered phenol self can not hydroperoxide decomposition, so use the polymkeric substance of hindered phenol antioxygen separately, still have the danger of potential thermo-oxidative ageing, the anti-oxidant purpose that is difficult to realize ideal, though and phosphite ester compound does not possess the ability of catching peroxylradicals, but can hydroperoxide decomposition, thereby suppressed the polymer degradation that autocatalytic reaction causes, can improve processing of plastic stability effectively, heat-resistant stability, modification of colour and weathering resistance.The benzofuranone kind antioxidant that contains lactone structure has good inhibition effect as good processing oxidation inhibitor to the degraded under the polymkeric substance high temperature anoxia condition, and three kind antioxidants are composite can bring into play synergy better.
Summary of the invention
The objective of the invention is provides a kind of high resistant burning and high heat-resistingization in order to overcome above-mentioned defective, and the resistance toheat of using under the hot conditions is good, the flame retardant polycarbonate composition of Halogen and ultrafine polymer insulation spacer material.
It is good to the purpose of this invention is to provide the resistance toheat of using under a kind of hot conditions, the flame retardant polycarbonate composition preparation method of Halogen and ultrafine polymer insulation spacer material.
The present invention by the following technical solutions, a kind of flame retardant polycarbonate composition comprises following components by weight percent:
100 parts of polycarbonate,
1～10 part of organic silicon fibre retardant,
0.1～2 part of sulfonate fire retardant,
0.1～2 part of inorganic synergistic flame retardant,
0.1～2 part of Antidrip agent,
0.3～3 part of composite antioxidant.
Described polycarbonate be melting index be 6～50g/10min (300 ℃, bisphenol A polycarbonate 1.2kg).
Described organic silicon fibre retardant is one or more the mixture in polyphenyl methyl siloxane, many phenyl silsesquioxanes and the phenol end group dimethyl siloxane.
Described sulfonate fire retardant is one or both the mixture in potassium diphenylsulfone sulfonate, the perfluoro butyl potassium sulfonate.
Described inorganic synergistic flame retardant is one or more the mixture in borophosphoric acid, carbon black, hydroxyapatite, magnesium hydroxide and the aluminium hydroxide.
Described Antidrip agent is one or both the mixture in tetrafluoroethylene, the tetrafluoroethylene-vinylidene fluoride copolymer.
The mixture that described composite antioxidant is made up of phosphite ester kind antioxidant, Hinered phenols antioxidant and benzofuranone, three's mass ratio is 3: 3: 1, and wherein phosphite ester kind antioxidant is one or more the mixture in triethyl phosphorite, tri isopropyl phosphorite, three isodecyl phosphorous acid esters, three lauryl phosphorous acid esters, phenyl isodecyl phosphorous acid ester, triphenyl isodecyl phosphorous acid ester and the triphenyl phosphorous acid ester.Hinered phenols antioxidant is one or more the mixture in 2,6 di tert butyl 4 methyl phenol, antioxidant 1010, the antioxidant 1076.The benzofuranone kind antioxidant is one or both the mixture in xylyl dibutyl benzofuranone, the 3-aryl benzofuranone.
Flame retardant polycarbonate composition of the present invention can also add the aromatic phosphoric acid ester fire retardant that contains 1～10 part.The aromatic phosphoric acid ester fire retardant is one or more the mixture in two (diphenyl phosphoester) oligopolymer of triphenyl, dihydroxyphenyl propane, two (diphenyl phosphoester) oligopolymer, three (2,6 one xylyl) phosphoric acid ester and three (the trimethylphenylmethane base phenyl) phosphoric acid ester of Resorcinol.
The preparation method of flame retardant polycarbonate composition of the present invention, finish by following following steps: be (300 ℃ of 15～50g/10min with organic silicon fibre retardant, sulfonate fire retardant and inorganic synergistic flame retardant and melting index earlier, 1.2kg) the blend of low viscosity polycarbonate melt to make the fire retardant total mass concentration be 1.2～14% flame-retardant master batch, be that (300 ℃, medium-viscosity polycarbonate 1.2kg), Antidrip agent and composite antioxidant melt blending make flame retardant polycarbonate composition to 6～15g/10min with flame-retardant master batch and melting index again.
The present invention can interpolation contain 1～10 part aromatic phosphoric acid ester fire retardant when the preparation flame-retardant master batch.The aromatic phosphoric acid ester fire retardant is one or more the mixture in two (diphenyl phosphoester) oligopolymer of triphenyl, dihydroxyphenyl propane, two (diphenyl phosphoester) oligopolymer, three (2,6 one xylyl) phosphoric acid ester and three (the trimethylphenylmethane base phenyl) phosphoric acid ester of Resorcinol.
The present invention is to be (300 ℃ of 15～50g/10min with 1～10 part of organic silicon fibre retardant, 0.1～2 part of sulfonate fire retardant, 0.1～2 part of inorganic synergistic flame retardant and melting index, 1.2kg) 86～98.8 parts of low viscosity polycarbonate, mix the back at 120 ℃ of dry 4h down, making the fire retardant total mass concentration by the twin screw extruder extruding pelletization is 1.2～14% flame-retardant master batch.The twin screw extruder screw rod is respectively distinguished temperature should remain on 200～300 ℃, be (300 ℃ of 6～15g/10min with melting index for 1～10 part with flame-retardant master batch again, 1.2kg) 85～98.6 parts of medium-viscosity polycarbonate, 0.1～2 part of Antidrip agent, 0.3～3 part of composite antioxidant, mix back dry 4h under 120 ℃, by the twin screw extruder fusion, the twin screw extruder screw rod is respectively distinguished temperature should remain on 200～300 ℃, extrude, cool off, dry, pelletizing and packing, make flame retardant polycarbonate composition.
Described polycarbonate be melting index be 6～50g/10min (300 ℃, bisphenol A polycarbonate 1.2kg).Described organic silicon fibre retardant is one or more the mixture in polyphenyl methyl siloxane, many phenyl silsesquioxanes and the phenol end group dimethyl siloxane.Described sulfonate fire retardant is one or more the mixture in potassium diphenylsulfone sulfonate, the perfluoro butyl potassium sulfonate.Described inorganic synergistic flame retardant is one or more the mixture in borophosphoric acid, carbon black, hydroxyapatite, magnesium hydroxide and the aluminium hydroxide.Described Antidrip agent is one or both the mixture in tetrafluoroethylene, the tetrafluoroethylene-vinylidene fluoride copolymer.The mixture that described composite antioxidant is made up of phosphite ester kind antioxidant, Hinered phenols antioxidant and benzofuranone, three's mass ratio is 3: 3: 1, and wherein phosphite ester kind antioxidant is one or more the mixture in triethyl phosphorite, tri isopropyl phosphorite, three isodecyl phosphorous acid esters, three lauryl phosphorous acid esters, phenyl isodecyl phosphorous acid ester, triphenyl isodecyl phosphorous acid ester and the triphenyl phosphorous acid ester.Hinered phenols antioxidant is one or more the mixture in 2,6 di tert butyl 4 methyl phenol, antioxidant 1010, the antioxidant 1076.The benzofuranone kind antioxidant is one or both the mixture in xylyl dibutyl benzofuranone, the 3-aryl benzofuranone.
High resistant burning of the present invention and high heat-resistingization, the resistance toheat of using under the hot conditions is good, and Halogen and ultra-thin can make the insulation spacer flame retardant properties of 0.50mm thickness reach the UL94VTM0 level, heat resisting temperature is 130 ℃, satisfies the fire-retardant and heat-stable requirement to insulation spacer of electric field simultaneously.
Embodiment
Further specify the present invention below by embodiment,
Embodiment 1:
With 86 parts of melting index polycarbonate that is 30g/10min; the 10 parts of Dow Corning DC-8008 of company type silicone resin; 2 parts of benzenesulfonyl Phenylsulfonic acid potassium; 2 parts of carbon blacks mix back 120 ℃ of dry 4h; prepare flame-retardant master batch by twin screw extruder at 200-300 ℃ of melt blending; the polycarbonate that is 15g/10min with 85 parts of melting index again; 14 parts of flame-retardant master batchs; 0.5 part tetrafluoroethylene; 0.5 part oxidation inhibitor (triethyl phosphorite: 2; the 6-di-tert-butyl-4-methy phenol: the mass ratio of xylyl dibutyl benzofuranone is 3: 3: 1) after the dispersing and mixing; by the twin screw extruder fusion; extrude; cooling; dry; pelletizing and packing; used twin screw extruder screw rod is respectively distinguished temperature should remain on 200～300 ℃, below all with.
Embodiment 2:
With 96.8 parts of melting index polycarbonate that is 16g/10min, the 1 part of Dow Corning DC-8008 of company type silicone resin, 2 parts of triphenyl fire retardants, 0.1 part perfluoro butyl Phenylsulfonic acid potassium, 0.1 a part borophosphoric acid mixes back 120 ℃ of dry 4h, prepare flame-retardant master batch by twin screw extruder at 200-300 ℃ of melt blending, the polycarbonate that is 12g/10min with 98.2 parts of melting index again, 1 part of flame-retardant master batch, 0.2 part tetrafluoroethylene, 0.6 part oxidation inhibitor (tri isopropyl phosphorite: 2, the 6-di-tert-butyl-4-methy phenol: the mass ratio of xylyl dibutyl benzofuranone is 3: 3: 1) after the dispersing and mixing, by the twin screw extruder fusion, extrude, cooling, dry, pelletizing and packing.
Embodiment 3:
With 98.8 parts of melting index polycarbonate that is 40g/10min, the 1 part of Dow Corning DC-8008 of company type silicone resin, 0.1 part perfluoro butyl Phenylsulfonic acid potassium, 0.1 a part hydroxyapatite mixes back 120 ℃ of dry 4h, prepare flame-retardant master batch by twin screw extruder at 200-300 ℃ of melt blending, the polycarbonate that is 10g/10min with 85 parts of melting index again, 10 parts of flame-retardant master batchs, 2 parts of tetrafluoroethylene, after 3 parts of oxidation inhibitor (three lauryl phosphorous acid esters: antioxidant 1010: the mass ratio of xylyl dibutyl benzofuranone is 3: 3: 1) dispersing and mixing, by the twin screw extruder fusion, extrude, cooling, dry, pelletizing and packing.
Embodiment 4:
With 85.8 parts of melting index polycarbonate that is 35g/10min, the 8 parts of Dow Corning DC-8008 of company type silicone resin, 4 parts of two (diphenyl phosphoester) oligopolymer fire retardants of dihydroxyphenyl propane, 0.2 part perfluoro butyl Phenylsulfonic acid potassium, 2 parts of magnesium hydroxides mix back 120 ℃ of dry 4h, prepare flame-retardant master batch by twin screw extruder at 200-300 ℃ of melt blending, the polycarbonate that is 9.5g/10min with 93.8 parts of melting index again, 1.2 part flame-retardant master batch, 2 parts of tetrafluoroethylene-vinylidene fluoride copolymers, after 3 parts of oxidation inhibitor (phenyl isodecyl phosphorous acid ester: antioxidant 1010: the mass ratio of xylyl dibutyl benzofuranone is 3: 3: 1) dispersing and mixing, by the twin screw extruder fusion, extrude, cooling, dry, pelletizing and packing.
Embodiment 5:
With 90.8 parts of melting index polycarbonate that is 30g/10min, 5 parts of phenyl methyl silicone resin, 2 parts of two (diphenyl phosphoester) oligopolymer fire retardants of Resorcinol, 0.2 part perfluoro butyl Phenylsulfonic acid potassium, 2 parts of aluminium hydroxides mix back 120 ℃ of dry 4h, prepare flame-retardant master batch by twin screw extruder at 200-300 ℃ of melt blending, the polycarbonate that is 8g/10min with 88.2 parts of melting index again, 8 parts of flame-retardant master batchs, 0.8 part tetrafluoroethylene-vinylidene fluoride copolymer, after 3 parts of oxidation inhibitor (phenyl isodecyl phosphorous acid ester: antioxidant 1076: the mass ratio of xylyl dibutyl benzofuranone is 3: 3: 1) dispersing and mixing, by the twin screw extruder fusion, extrude, cooling, dry, pelletizing and packing.
Embodiment 6:
With 94.8 parts of melting index polycarbonate that is 10g/10min, 4 parts of phenol end group dimethyl siloxanes, 1 part of carbon black, 0.2 part perfluoro butyl Phenylsulfonic acid potassium mixes back 120 ℃ of dry 4h, prepare flame-retardant master batch by twin screw extruder at 200-300 ℃ of melt blending, the polycarbonate that is 10g/10min with 90.4 parts of melting index again, 6 parts of flame-retardant master batchs, 0.6 part tetrafluoroethylene, after 3 parts of oxidation inhibitor (phenyl isodecyl phosphorous acid ester: antioxidant 1076: the mass ratio of xylyl dibutyl benzofuranone is 3: 3: 1) dispersing and mixing, by the twin screw extruder fusion, extrude, cooling, dry, pelletizing and packing.
Embodiment 7:
With 93.8 parts of melting index polycarbonate that is 40g/10min, phenyl silsesquioxane more than 4 parts, 0.2 part potassium diphenylsulfone sulfonate, 2 parts of magnesium hydroxides mix back 120 ℃ of dry 4h, prepare flame-retardant master batch by twin screw extruder at 200-300 ℃ of melt blending, the polycarbonate that is 7g/10min with 90.6 parts of melting index again, 8 parts of flame-retardant master batchs, 0.2 part tetrafluoroethylene, 1.2 after part oxidation inhibitor (phenyl isodecyl phosphorous acid ester: antioxidant 1010: the mass ratio of xylyl dibutyl benzofuranone is 3: 3: the 1) dispersing and mixing, by the twin screw extruder fusion, extrude, cooling, dry, pelletizing and packing.
Embodiment 8:
With 91 parts of melting index polycarbonate that is 28g/10min, phenyl silsesquioxane more than 6 parts, 1 part of potassium diphenylsulfone sulfonate, 2 parts of aluminium hydroxides mix back 120 ℃ of dry 4h, prepare flame-retardant master batch by twin screw extruder at 200-300 ℃ of melt blending, the polycarbonate that is 6g/10min with 86 parts of melting index again, 10 parts of flame-retardant master batchs, 1 part of tetrafluoroethylene, after 3 parts of oxidation inhibitor (triphenyl isodecyl phosphorous acid ester: antioxidant 1076: the mass ratio of xylyl dibutyl benzofuranone is 3: 3: 1) dispersing and mixing, by the twin screw extruder fusion, extrude, cooling, dry, pelletizing and packing.
Embodiment 9:
With 88 parts of melting index polycarbonate that is 16g/10min, 9 parts of phenol end group dimethyl siloxanes, 2 parts of magnesium hydroxides, 1 part of potassium diphenylsulfone sulfonate is mixed back 120 ℃ of dry 4h, prepare flame-retardant master batch by twin screw extruder at 200-300 ℃ of melt blending, the polycarbonate that is 12g/10min with 88.3 parts of melting index again, 10 parts of flame-retardant master batchs, 1 part of tetrafluoroethylene, 0.7 after part oxidation inhibitor (tri isopropyl phosphorite: antioxidant 1010: the mass ratio of xylyl dibutyl benzofuranone is 3: 3: the 1) dispersing and mixing, by the twin screw extruder fusion, extrude, cooling, dry, pelletizing and packing.
Embodiment 10:
With 87 parts of melting index polycarbonate that is 26g/10min, 9 parts of phenol end group dimethyl siloxanes, 2 parts of hydroxyapatites, 2 parts of potassium diphenylsulfone sulfonate are mixed back 120 ℃ of dry 4h, prepare flame-retardant master batch by twin screw extruder at 200-300 ℃ of melt blending, the polycarbonate that is 15g/10min with 89.9 parts of melting index again, 7 parts of flame-retardant master batchs, 1 part of tetrafluoroethylene, 2.1 after part oxidation inhibitor (tri isopropyl phosphorite: antioxidant 1010: the mass ratio of xylyl dibutyl benzofuranone is 3: 3: the 1) dispersing and mixing, by the twin screw extruder fusion, extrude, cooling, dry, pelletizing and packing.
Embodiment 11:
With 86 parts of melting index polycarbonate that is 50g/10min, phenyl silsesquioxane more than 10 parts, 2 parts of carbon blacks, 2 parts of potassium diphenylsulfone sulfonate are mixed back 120 ℃ of dry 4h, prepare flame-retardant master batch by twin screw extruder at 200-300 ℃ of melt blending, the polycarbonate that is 10g/10min with 90 parts of melting index again, 8 parts of flame-retardant master batchs, 1 part of tetrafluoroethylene, after 1 part of oxidation inhibitor (tri isopropyl phosphorite: antioxidant 1010: the mass ratio of xylyl dibutyl benzofuranone is 3: 3: 1) dispersing and mixing, by the twin screw extruder fusion, extrude, cooling, dry, pelletizing and packing.
Embodiment 12:
With 92 parts of melting index polycarbonate that is 30g/10min, 5 parts of phenol end group dimethyl siloxanes, 2 parts of magnesium hydroxides, 1 part of perfluoro butyl potassium sulfonate mixes back 120 ℃ of dry 4h, prepare flame-retardant master batch by twin screw extruder at 200-300 ℃ of melt blending, the polycarbonate that is 8g/10min with 87.2 parts of melting index again, 10 parts of flame-retardant master batchs, 1 part of tetrafluoroethylene-vinylidene fluoride copolymer, 1.8 after part oxidation inhibitor (tri isopropyl phosphorite: antioxidant 1010: the mass ratio of 3-aryl benzofuranone is 3: 3: the 1) dispersing and mixing, by the twin screw extruder fusion, extrude, cooling, dry, pelletizing and packing.
The prepared composition of each embodiment is injection molded into the standard batten of testing usefulness by standard size, and by the international standard test, each performance test results is as shown in table 1 respectively for physicals.
Therefore the present invention will not be limited among the described scope of embodiments.Wherein, the vertical combustion grade of insulating trip is pressed the UL94 standard test, and the notched Izod impact strength of insulating trip is pressed ASTM D256 standard test, and tensile strength is pressed ASTM D638-2002 and measured, rate of extension is 50mm/min, and the electrical property relatively hot index (RTI value) of insulating trip is pressed the UL746B standard test.
Each performance test results of table 1 embodiment
| Performance | Pure PC | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Tensile strength (MPa) | 65.2 | 65.3 | 64.2 | 65.1 | 65.6 | 64.7 | 65.4 |
| Notched Izod impact strength (KJ/m 2) | 123.6 | 120.2 | 127.3 | 128.1 | 124.6 | 125.3 | 123.4 |
| The vertical combustion grade | V-2 | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 |
| The RTI value (℃) | 90 | 131 | 130 | 132 | 132 | 135 | 131 |
Each performance test results of table 2 embodiment
| Performance | Pure PC | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 | Embodiment 11 | Embodiment 12 |
| Tensile strength (MPa) | 65.2 | 65.5 | 66.3 | 67.2 | 68.3 | 69.1 | 66.3 |
| Notched Izod impact strength (KJ/m 2) | 123.6 | 120.1 | 125.4 | 127.2 | 123.2 | 124.8 | 125.7 |
| The vertical combustion grade | V-2 | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 |
| The RTI value (℃) | 90 | 131 | 133 | 134 | 135 | 132 | 130 |
Claims (6)
1. flame retardant polycarbonate composition is characterized in that comprising following components by weight percent:
100 parts of polycarbonate,
1～10 part of organic silicon fibre retardant,
0.1～2 part of sulfonate fire retardant,
0.1～2 part of inorganic synergistic flame retardant,
0.1～2 part of Antidrip agent,
0.3～3 part of composite antioxidant,
Polycarbonate is that melting index is the bisphenol A polycarbonate of 6～50g/10min, organic silicon fibre retardant is a polyphenyl methyl siloxane, the mixture of one or more in many phenyl silsesquioxanes and the phenol end group dimethyl siloxane, the sulfonate fire retardant is a potassium diphenylsulfone sulfonate, the mixture of one or both in the perfluoro butyl potassium sulfonate, Antidrip agent is a tetrafluoroethylene, the mixture of one or both in the tetrafluoroethylene-vinylidene fluoride copolymer, inorganic synergistic flame retardant is a borophosphoric acid, carbon black, hydroxyapatite, the mixture of one or more in magnesium hydroxide and the aluminium hydroxide.
2. a kind of flame retardant polycarbonate composition according to claim 1, it is characterized in that composite antioxidant is by phosphite ester kind antioxidant, the mixture that Hinered phenols antioxidant and benzofuranone are formed, three's mass ratio is 3: 3: 1, wherein phosphite ester kind antioxidant is a triethyl phosphorite, tri isopropyl phosphorite, three isodecyl phosphorous acid esters, three lauryl phosphorous acid esters, phenyl isodecyl phosphorous acid ester, the mixture of one or more in triphenyl isodecyl phosphorous acid ester and the triphenyl phosphorous acid ester, Hinered phenols antioxidant is a 2,6 di tert butyl 4 methyl phenol, antioxidant 1010, the mixture of one or more in the antioxidant 1076.
3. a kind of flame retardant polycarbonate composition according to claim 1, it is characterized in that adding the aromatic phosphoric acid ester fire retardant that contains 1～10 part, the aromatic phosphoric acid ester fire retardant is one or more the mixture in the two diphenylphosphoric acid ester oligomers of triphenyl, dihydroxyphenyl propane, two diphenylphosphoric acid ester oligomer, three (2, the 6-xylyl) phosphoric acid ester and three (trimethylphenylmethane base) phenyl phosphate ester of Resorcinol.
4. flame retardant polycarbonate composition preparation method, with 1～10 part of organic silicon fibre retardant, 0.1～2 part of sulfonate fire retardant, 0.1～2 part of inorganic synergistic flame retardant and melting index are that to make the fire retardant total mass concentration be 1.2～14% flame-retardant master batch to 86～98.8 parts of melt blendings of low viscosity polycarbonate of 16～50g/10min, by the twin screw extruder fusion, the twin screw extruder screw rod is respectively distinguished temperature should remain on 200～300 ℃, be 85～98.6 parts of the medium-viscosity polycarbonate of 6～15g/10min again with flame-retardant master batch and melting index, 0.1～2 part of Antidrip agent, 0.3～3 part of composite antioxidant, melt blending, by the twin screw extruder fusion, the twin screw extruder screw rod is respectively distinguished temperature should remain on 200～300 ℃, extrude, cooling, dry, pelletizing and packing make flame retardant polycarbonate composition.
5. a kind of flame retardant polycarbonate composition preparation method according to claim 4 is characterized in that adding when the preparation flame-retardant master batch and contains 1～10 part aromatic phosphoric acid ester fire retardant.
6. a kind of flame retardant polycarbonate composition preparation method according to claim 4, it is characterized in that described polycarbonate is that melting index is the bisphenol A polycarbonate of 6～50g/10min, described organic silicon fibre retardant is a polyphenyl methyl siloxane, the mixture of one or more in many phenyl silsesquioxanes and the phenol end group dimethyl siloxane, described sulfonate fire retardant is a potassium diphenylsulfone sulfonate, the mixture of one or both in the perfluoro butyl potassium sulfonate, described inorganic synergistic flame retardant is a borophosphoric acid, carbon black, hydroxyapatite, the mixture of one or more in magnesium hydroxide and the aluminium hydroxide, described Antidrip agent is a tetrafluoroethylene, the mixture of one or both in the tetrafluoroethylene-vinylidene fluoride copolymer, described composite antioxidant is by phosphite ester kind antioxidant, the mixture that Hinered phenols antioxidant and benzofuranone are formed, three's mass ratio is 3: 3: 1, wherein phosphite ester kind antioxidant is a triethyl phosphorite, tri isopropyl phosphorite, three isodecyl phosphorous acid esters, three lauryl phosphorous acid esters, phenyl isodecyl phosphorous acid ester, the mixture of one or more in triphenyl isodecyl phosphorous acid ester and the triphenyl phosphorous acid ester, Hinered phenols antioxidant is a 2,6 di tert butyl 4 methyl phenol, antioxidant 1010, the mixture of one or more in the antioxidant 1076.
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| CN201010130280XA CN101792585B (en) | 2010-03-16 | 2010-03-16 | Flame-retardant polycarbonate composition and preparation method thereof |
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| CN101792585B true CN101792585B (en) | 2011-12-14 |
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| KR101174686B1 (en) * | 2004-11-01 | 2012-08-16 | 테이진 카세이 가부시키가이샤 | Resin composition and fixing frames for flat-panel displays |
| CN101062996A (en) * | 2006-04-30 | 2007-10-31 | 佛山市顺德区高怡新塑料有限公司 | Halogen-free flame-proof weather-resisting transparent polycarbonate composition |
| CN101418117B (en) * | 2007-10-26 | 2013-06-26 | 帝人化成株式会社 | Aromatic polycarbonate resin composite |
| CN101362857B (en) * | 2008-09-24 | 2011-05-04 | 华南理工大学 | Non-halogen flame-retarding high performance polycarbonate engineering plastics and preparation method thereof |
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