CN109135235B - Polycarbonate composition and preparation method and application thereof - Google Patents
Polycarbonate composition and preparation method and application thereof Download PDFInfo
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- CN109135235B CN109135235B CN201810763706.1A CN201810763706A CN109135235B CN 109135235 B CN109135235 B CN 109135235B CN 201810763706 A CN201810763706 A CN 201810763706A CN 109135235 B CN109135235 B CN 109135235B
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- 239000004417 polycarbonate Substances 0.000 title claims abstract description 61
- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 61
- 239000000203 mixture Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title description 6
- 239000003063 flame retardant Substances 0.000 claims abstract description 38
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 37
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 13
- 230000002195 synergetic effect Effects 0.000 claims abstract description 11
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims abstract description 9
- -1 poly aminopropyl phenyl Chemical group 0.000 claims description 15
- 229920000098 polyolefin Polymers 0.000 claims description 8
- 239000003963 antioxidant agent Substances 0.000 claims description 7
- 230000003078 antioxidant effect Effects 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 6
- 239000012764 mineral filler Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- LVTHXRLARFLXNR-UHFFFAOYSA-M potassium;1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate Chemical group [K+].[O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F LVTHXRLARFLXNR-UHFFFAOYSA-M 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 2
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 claims description 2
- 229920001921 poly-methyl-phenyl-siloxane Polymers 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 150000008054 sulfonate salts Chemical class 0.000 claims 2
- HWXBQOWZWWYBLY-UHFFFAOYSA-N C1(=CC=CC=C1)S(=O)(=O)OS(=O)(=O)C=1C=CC=CC1.[K] Chemical compound C1(=CC=CC=C1)S(=O)(=O)OS(=O)(=O)C=1C=CC=CC1.[K] HWXBQOWZWWYBLY-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- KVCGISUBCHHTDD-UHFFFAOYSA-M sodium;4-methylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1 KVCGISUBCHHTDD-UHFFFAOYSA-M 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 16
- 239000000463 material Substances 0.000 description 7
- 238000010998 test method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920006389 polyphenyl polymer Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 125000003396 thiol group Chemical class [H]S* 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- KCSVLWWBFNKRRA-UHFFFAOYSA-N OS(C1=CC=CC=C1)(=O)=O.O=[S-](C1=CC=CC=C1)=O.[K+] Chemical compound OS(C1=CC=CC=C1)(=O)=O.O=[S-](C1=CC=CC=C1)=O.[K+] KCSVLWWBFNKRRA-UHFFFAOYSA-N 0.000 description 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 1
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 238000001757 thermogravimetry curve Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2427/18—Homopolymers or copolymers of tetrafluoroethylene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2433/10—Homopolymers or copolymers of methacrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
- C08J2483/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
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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
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- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a polycarbonate composition, which comprises the following components in parts by weight: a. 1-99 parts of polycarbonate; b. 0.2-1 part of sulfonate flame retardant; c. 0.02-0.7 part of synergistic flame retardant; d. 0.3-1 part of siloxane. The polycarbonate composition with the specific melt index is prepared by adding the polycarbonate with the specific melt index, the sulfonate flame retardant with the specific content, the synergistic flame retardant and the siloxane into the formula of the polycarbonate composition, and the polycarbonate composition still has good flame retardant property, good toughness and thermal stability and molding appearance under the condition that the flame retardant thickness is 0.40 mm.
Description
Technical Field
The invention relates to the technical field of engineering plastics, in particular to a polycarbonate composition and a preparation method and application thereof.
Background
Polycarbonate (PC) has a balance of mechanical properties, dimensional stability and heat resistance, especially known for excellent impact strength and creep resistance. The PC resin has the visible light transmittance of more than 90 percent, high thermal decomposition temperature and excellent electrical insulation, is widely applied to various fields of machinery, automobiles, aerospace, buildings, electronics and electrics, offices, household products and the like, and is particularly widely applied to polycarbonate insulating films for electronics and electrics.
Polycarbonate insulating films for electronic and electrical applications, which have a thickness level of less than 0.5mm, can be classified into non-flame retardant type and flame retardant type, and flame retardant type insulating films are an application development trend, and as electronic component materials, the thinning development and safety performance guarantee of materials are required to have stable flame retardancy at a reduced thickness to reduce thermal damage from electronic components, and for this reason, it is also required to ensure high heat resistance and storage stability. And also has a desirable folding property, voltage resistance and heat resistance. While many polycarbonate compositions can provide the beneficial combination of properties described above, there have been no reports of very thin polycarbonate materials to achieve the desired flame resistance performance in demanding electrical insulation applications. With the trend of electronic devices becoming fast-moving products and product design thinning, the growth of insulating films is estimated to be about 20% per year, and the development trends of thinning, functionalization and environmental protection tend to push halogen-free flame-retardant polycarbonate film materials to become new and attractive in electronic and electrical insulation applications.
However, the sulfonate flame retardant can promote PC to crosslink into charcoal in the PC combustion process, so that the flame retardant property of PC is improved, but the saturated addition amount of sulfonate is low, so that the PC is seriously degraded when the sulfonate is excessively used, and the mechanical property and the flame retardant property are deteriorated. In order to obtain more excellent flame retardant effect, the sulfonate flame retardant needs to be compounded and synergized, for example, in chinese patent CN 201510443170. Mineral fillers are common flame retardant synergistic components, but their surface is generally alkaline, risking degradation of the PC matrix, and their use in PC flame retardant compositions is limited.
Disclosure of Invention
In order to overcome the disadvantages and shortcomings of the prior art, the invention provides a polycarbonate composition which still has good flame retardant property, good rigidity and toughness property, good thermal stability and molding appearance under the condition of a film with a flame retardant thickness of 0.40 mm.
Another object of the present invention is to provide a process for the preparation of the above polycarbonate composition.
It is a further object of the present invention to provide the use of the above polycarbonate compositions.
The invention is realized by the following technical scheme:
a polycarbonate composition comprises the following components in parts by weight:
a. 1-99 parts of polycarbonate;
b. 0.2-1 part of sulfonate flame retardant;
c. 0.02-0.7 part of synergistic flame retardant;
d. 0.3-1 part of siloxane.
Wherein the melt index of the polycarbonate is 3g/10 min-8 g/10min, preferably 4g/10 min-6 g/10min, measured at 300 ℃ and 1.2 kg.
The melt index of the polycarbonate is only controlled to be 3g/10 min-8 g/10min, so that the hidden trouble of the processing stability of the prepared polycarbonate composition can be solved; when the melt index of the polycarbonate is lower than 3g/10min, the processing flowability of the prepared polycarbonate composition is poor; when the melt index exceeds 8g/10min, the film-forming property of the polycarbonate composition is poor and the risk of occurrence of dripping ignition during combustion is increased.
The sulfonate flame retardant is one or more selected from perfluoroalkyl potassium sulfonate, benzenesulfonyl potassium benzenesulfonate and p-toluene sodium sulfonate, and is preferably potassium perfluorobutyl sulfonate.
Wherein the viscosity of the synergistic flame retardant at the melting point of 140 ℃ is 80-9000 mPa.s, and the acid value is 6-90; one or more selected from polyolefin oxide, maleic anhydride modified polyolefin and acrylate, preferably maleic anhydride modified polyolefin.
The siloxane is selected from one or more of poly aminopropyl phenyl silsesquioxane, hydroxyl-terminated poly aminopropyl silsesquioxane, polymethylsilsesquioxane, polyphenyl silsesquioxane, polydimethylsiloxane and polymethylphenylsiloxane, and is preferably polyphenyl silsesquioxane.
The polycarbonate composition of the invention can also comprise 0 to 24 parts of mineral filler, 0 to 1 part of anti-dripping agent, 0 to 1 part of antioxidant and 0 to 1 part of lubricant by weight part; wherein the mineral filler is selected from one or more of talcum powder, titanium dioxide, mica, montmorillonite and kaolin; the anti-dripping agent is one or more selected from polytetrafluoroethylene, silicone-coated polytetrafluoroethylene and methacrylate polymer-coated polytetrafluoroethylene.
In addition, the invention also discloses a preparation method of the polycarbonate composition, which comprises the following steps:
the components are uniformly mixed in a high-speed mixer according to the proportion, added into a double-screw extruder, melted and mixed at the temperature of 240-260 ℃, and then granulated, cooled and dried to obtain the polycarbonate composition.
The invention also discloses application of the polycarbonate composition in an insulating film in the field of electronics and electricity.
Compared with the prior art, the invention has the following beneficial effects:
the polycarbonate composition with the specific melt index is prepared by adding the polycarbonate with the specific melt index, the sulfonate flame retardant with the specific content, the synergistic flame retardant and the siloxane into the polycarbonate composition formula, and the polycarbonate composition still has good flame retardant property, good toughness and thermal stability and molding appearance under the condition that the flame retardant thickness is 0.40 mm.
Detailed Description
The present invention is further illustrated by the following specific examples, which are, however, not intended to limit the scope of the invention.
Test criteria or methods for each property:
method for testing melt index MI: test standard ASTM D1238, 300 ℃, 1.2 kg;
test method for flame resistance rating (0.40 mm): preparing the polycarbonate composition into a 0.40mm film, and testing the flame retardant rating, wherein the test standard is UL 94;
the test method of the room temperature notch impact strength comprises the following steps: test standard ASTM D256;
the test method of the bending strength comprises the following steps: test standard ASTM D790;
tensile strength test method: test standard ASTM D638;
test method of thermal stability: TGA initial thermal decomposition temperature was used for characterization: taking the temperature corresponding to the weight loss rate of 5% in the TGA curve as the initial thermal decomposition temperature; the higher the TGA initial decomposition temperature, the better the thermal stability of the material;
test method of appearance grade: the material was cast into a 0.40mm to 0.45mm thick film and the surface gloss at an angle of 60 ° was measured according to the ASTM D523 standard. If the test result is greater than 30, the test result is defined as "level 1", if the test result is 30-15, the test result is defined as level 2, and if the test result is less than 15, the test result is defined as level 3.
The raw materials used in the examples and comparative examples are now described below, but are not limited to these materials:
polycarbonate PC used in the present invention:
two or three of polycarbonate resins with melt indexes of 3g/10min (300 ℃, 1.2 kg), 10g/10min (300 ℃, 1.2 kg) and 20g/10min (300 ℃, 1.2 kg) are adopted to be compounded according to a certain proportion to obtain the following PC 1-6:
PC-1: melt index 4g/10min (300 ℃, 1.2 kg);
PC-2: melt index 6g/10min (300 ℃, 1.2 kg);
PC-3: melt index 3g/10min (300 ℃, 1.2 kg);
PC-4: melt index 8g/10min (300 ℃, 1.2 kg);
PC-5: melt index 1g/10min (300 ℃, 1.2 kg);
PC-6: melt index 10g/10min (300 ℃, 1.2 kg);
the synergistic flame retardant used in the present invention:
maleic anhydride-modified polyolefin having a viscosity of 150 mPa.s at a melting point of 140 ℃ and an acid value of 60;
an oxidized polyolefin having a viscosity of 8500 mPa.s at a melting point of 140 ℃ and an acid value of 16;
the siloxane used in the present invention:
polyphenylsilsesquioxane, sold under the trade designation KR-2710;
hydroxy terminated polyaminopropyl silsesquioxane, trade designation FCA-107;
sulfonate flame retardants used in the present invention: potassium perfluorobutane sulfonate;
mineral fillers used in the present invention: talcum powder with 3000 meshes;
anti-drip agents used in the present invention: polytetrafluoroethylene coated with methyl methacrylate;
the antioxidant used in the present invention: compounding hindered phenol antioxidant CHINOX 1076 and thiol antioxidant JADEWIN AN 412S, wherein the compounding ratio of the hindered phenol antioxidant CHINOX 1076 to the thiol antioxidant JADEWIN AN 412S is 1: 1;
lubricants used in the present invention: pentaerythritol stearate lubricant LOXIOL P861/3.5, German Kenin.
Examples 1-6 and comparative examples 1-6: preparation of polycarbonate compositions
Uniformly mixing the components in a high-speed mixer according to the proportion shown in the table 1, adding the mixture into a double-screw extruder, carrying out melt mixing at the temperature of 240-260 ℃, and then granulating, cooling and drying to obtain a polycarbonate composition; the polycarbonate compositions were tested for their melt index, flame retardant rating (0.40 mm), room temperature notched impact strength, flexural strength, tensile strength, thermal stability and appearance rating, with the test data shown in Table 1.
TABLE 1 concrete compounding ratios (parts by weight) of examples 1 to 6 and comparative examples 1 to 6 and test performance results thereof
TABLE 1
Claims (10)
1. A polycarbonate composition comprises the following components in parts by weight:
a. 1-99 parts of polycarbonate;
b. 0.2-1 part of sulfonate flame retardant;
c. 0.02-0.7 part of synergistic flame retardant;
d. 0.3-1 part of siloxane;
the melt index of the polycarbonate is 3g/10 min-8 g/10min measured at 300 ℃ and 1.2 kg;
the viscosity of the synergistic flame retardant at the melting point of 140 ℃ is 80-9000 mPa.s, and the acid value is 6-90;
the synergistic flame retardant is selected from one or more of polyolefin oxide and maleic anhydride modified polyolefin.
2. The polycarbonate composition of claim 1, wherein the polycarbonate has a melt index of 4g/10min to 6g/10min, as measured at 300 ℃ under 1.2 kg.
3. The polycarbonate composition of claim 1, wherein the sulfonate salt flame retardant is selected from one or more of potassium perfluoroalkylsulfonate, potassium benzenesulfonyl benzenesulfonate, and sodium p-toluenesulfonate.
4. The polycarbonate composition of claim 3, wherein the sulfonate salt flame retardant is selected from potassium perfluorobutane sulfonate.
5. The polycarbonate composition of claim 1, wherein the synergistic flame retardant is selected from maleic anhydride modified polyolefins.
6. The polycarbonate composition of claim 1, wherein the siloxane is selected from one or more of poly aminopropyl phenyl silsesquioxane, hydroxyl terminated poly aminopropyl silsesquioxane, polymethylsilsesquioxane, polyphenylsilsesquioxane, polydimethylsiloxane, and polymethylphenylsiloxane.
7. The polycarbonate composition of claim 6, wherein the siloxane is selected from the group consisting of polyphenylsilsesquioxanes.
8. The polycarbonate composition of claim 1, further comprising, by weight, 0-24 parts of a mineral filler, 0-1 part of an anti-drip agent, 0-1 part of an antioxidant, and 0-1 part of a lubricant; wherein the mineral filler is selected from one or more of talcum powder, titanium dioxide, mica, montmorillonite and kaolin; the anti-dripping agent is one or more selected from polytetrafluoroethylene, silicone-coated polytetrafluoroethylene and methacrylate polymer-coated polytetrafluoroethylene.
9. A method of making the polycarbonate composition of any of claims 1-8, comprising the steps of:
the components are uniformly mixed in a high-speed mixer according to the proportion, added into a double-screw extruder, melted and mixed at the temperature of 240-260 ℃, and then granulated, cooled and dried to obtain the polycarbonate composition.
10. Use of the polycarbonate composition as defined in any one of claims 1 to 8 in an insulating film in the field of electronics and electrical.
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| CN201810763706.1A CN109135235B (en) | 2018-07-12 | 2018-07-12 | Polycarbonate composition and preparation method and application thereof |
| PCT/CN2019/094311 WO2020011057A1 (en) | 2018-07-12 | 2019-07-02 | Polycarbonate composition, preparation method therefor, and application thereof |
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| CN120344606A (en) * | 2023-01-05 | 2025-07-18 | 科思创德国股份有限公司 | Mineral-filled polycarbonate and/or polyester carbonate molding compounds with good thermal stability |
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| JP5319047B2 (en) * | 2005-05-19 | 2013-10-16 | 帝人株式会社 | Polycarbonate resin composition |
| US7553895B2 (en) * | 2006-06-29 | 2009-06-30 | Sabic Innovative Plastics Ip B.V. | Polycarbonate compositions and articles formed therefrom |
| WO2013079631A1 (en) * | 2011-11-30 | 2013-06-06 | Bayer Intellectual Property Gmbh | Glass-fiber reinforced, flame-retardant polycarbonate compositions |
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