CN115260727A - Polycarbonate composition, shell, terminal and preparation method of shell - Google Patents
Polycarbonate composition, shell, terminal and preparation method of shell Download PDFInfo
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- CN115260727A CN115260727A CN202110478925.7A CN202110478925A CN115260727A CN 115260727 A CN115260727 A CN 115260727A CN 202110478925 A CN202110478925 A CN 202110478925A CN 115260727 A CN115260727 A CN 115260727A
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- Prior art keywords
- polycarbonate
- modifier
- polycarbonate composition
- housing
- styrene
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- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 193
- 239000004417 polycarbonate Substances 0.000 title claims abstract description 193
- 239000000203 mixture Substances 0.000 title claims abstract description 109
- 238000002360 preparation method Methods 0.000 title description 4
- 239000003607 modifier Substances 0.000 claims abstract description 99
- 238000000034 method Methods 0.000 claims abstract description 17
- -1 phosphate ester Chemical class 0.000 claims description 32
- 229910019142 PO4 Inorganic materials 0.000 claims description 31
- 239000010452 phosphate Substances 0.000 claims description 29
- 229920006150 hyperbranched polyester Polymers 0.000 claims description 26
- 239000004609 Impact Modifier Substances 0.000 claims description 23
- 239000000654 additive Substances 0.000 claims description 23
- OTARINNNYBVWOO-UHFFFAOYSA-N phenyl 2-methylprop-2-enoate 5-phenylpenta-2,4-dienenitrile Chemical compound C(=CC1=CC=CC=C1)C=CC#N.C(C(=C)C)(=O)OC1=CC=CC=C1 OTARINNNYBVWOO-UHFFFAOYSA-N 0.000 claims description 23
- 229920002285 poly(styrene-co-acrylonitrile) Polymers 0.000 claims description 23
- 230000000996 additive effect Effects 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 239000003063 flame retardant Substances 0.000 claims description 10
- 239000003963 antioxidant agent Substances 0.000 claims description 9
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims description 9
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- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
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- 239000000049 pigment Substances 0.000 description 2
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- 229920000728 polyester Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
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- 238000012360 testing method Methods 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- NEXZVOLIDKSFBH-UHFFFAOYSA-N (1,1-diphenyl-2-phosphonooxyethyl) 2-methylprop-2-enoate Chemical compound C=1C=CC=CC=1C(COP(O)(O)=O)(OC(=O)C(=C)C)C1=CC=CC=C1 NEXZVOLIDKSFBH-UHFFFAOYSA-N 0.000 description 1
- YRIOTLGRXFJRTJ-UHFFFAOYSA-N (1,1-diphenyl-2-phosphonooxyethyl) prop-2-enoate Chemical compound C=1C=CC=CC=1C(OC(=O)C=C)(COP(O)(=O)O)C1=CC=CC=C1 YRIOTLGRXFJRTJ-UHFFFAOYSA-N 0.000 description 1
- YIYBRXKMQFDHSM-UHFFFAOYSA-N 2,2'-Dihydroxybenzophenone Chemical class OC1=CC=CC=C1C(=O)C1=CC=CC=C1O YIYBRXKMQFDHSM-UHFFFAOYSA-N 0.000 description 1
- COCTZVNXBOTULM-UHFFFAOYSA-N 2,2-dimethylpropyl phenyl hydrogen phosphate Chemical compound CC(C)(C)COP(O)(=O)OC1=CC=CC=C1 COCTZVNXBOTULM-UHFFFAOYSA-N 0.000 description 1
- VXHYVVAUHMGCEX-UHFFFAOYSA-N 2-(2-hydroxyphenoxy)phenol Chemical class OC1=CC=CC=C1OC1=CC=CC=C1O VXHYVVAUHMGCEX-UHFFFAOYSA-N 0.000 description 1
- XSVZEASGNTZBRQ-UHFFFAOYSA-N 2-(2-hydroxyphenyl)sulfinylphenol Chemical class OC1=CC=CC=C1S(=O)C1=CC=CC=C1O XSVZEASGNTZBRQ-UHFFFAOYSA-N 0.000 description 1
- QUWAJPZDCZDTJS-UHFFFAOYSA-N 2-(2-hydroxyphenyl)sulfonylphenol Chemical class OC1=CC=CC=C1S(=O)(=O)C1=CC=CC=C1O QUWAJPZDCZDTJS-UHFFFAOYSA-N 0.000 description 1
- XKZQKPRCPNGNFR-UHFFFAOYSA-N 2-(3-hydroxyphenyl)phenol Chemical compound OC1=CC=CC(C=2C(=CC=CC=2)O)=C1 XKZQKPRCPNGNFR-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004386 Erythritol Substances 0.000 description 1
- UNXHWFMMPAWVPI-UHFFFAOYSA-N Erythritol Natural products OCC(O)C(O)CO UNXHWFMMPAWVPI-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- CGSLYBDCEGBZCG-UHFFFAOYSA-N Octicizer Chemical compound C=1C=CC=CC=1OP(=O)(OCC(CC)CCCC)OC1=CC=CC=C1 CGSLYBDCEGBZCG-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- ZAKOWWREFLAJOT-ADUHFSDSSA-N [2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydrochromen-6-yl] acetate Chemical group CC(=O)OC1=C(C)C(C)=C2OC(CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C ZAKOWWREFLAJOT-ADUHFSDSSA-N 0.000 description 1
- OCKWAZCWKSMKNC-UHFFFAOYSA-N [3-octadecanoyloxy-2,2-bis(octadecanoyloxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(COC(=O)CCCCCCCCCCCCCCCCC)(COC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC OCKWAZCWKSMKNC-UHFFFAOYSA-N 0.000 description 1
- BQPNUOYXSVUVMY-UHFFFAOYSA-N [4-[2-(4-diphenoxyphosphoryloxyphenyl)propan-2-yl]phenyl] diphenyl phosphate Chemical compound C=1C=C(OP(=O)(OC=2C=CC=CC=2)OC=2C=CC=CC=2)C=CC=1C(C)(C)C(C=C1)=CC=C1OP(=O)(OC=1C=CC=CC=1)OC1=CC=CC=C1 BQPNUOYXSVUVMY-UHFFFAOYSA-N 0.000 description 1
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- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- 229920006125 amorphous polymer Polymers 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
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- 125000000051 benzyloxy group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])O* 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
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- 239000006229 carbon black Substances 0.000 description 1
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- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
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- WMVRXDZNYVJBAH-UHFFFAOYSA-N dioxoiron Chemical compound O=[Fe]=O WMVRXDZNYVJBAH-UHFFFAOYSA-N 0.000 description 1
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- UNXHWFMMPAWVPI-ZXZARUISSA-N erythritol Chemical compound OC[C@H](O)[C@H](O)CO UNXHWFMMPAWVPI-ZXZARUISSA-N 0.000 description 1
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- 238000009472 formulation Methods 0.000 description 1
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- 230000009477 glass transition Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000012170 montan wax Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 150000007519 polyprotic acids Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 150000003873 salicylate salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- KOWVWXQNQNCRRS-UHFFFAOYSA-N tris(2,4-dimethylphenyl) phosphate Chemical compound CC1=CC(C)=CC=C1OP(=O)(OC=1C(=CC(C)=CC=1)C)OC1=CC=C(C)C=C1C KOWVWXQNQNCRRS-UHFFFAOYSA-N 0.000 description 1
- 235000013799 ultramarine blue Nutrition 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Images
Classifications
-
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
Abstract
The present disclosure relates to a polycarbonate composition, a housing, a terminal, and a method for preparing a housing, wherein the polycarbonate composition comprises: a polycarbonate, a first modifier, and a second modifier; wherein the first modifier is used for improving the flowability of the polycarbonate; the second modifier is at least used for improving the temperature resistance of the polycarbonate. The embodiment of the disclosure simultaneously improves the flowability and the temperature resistance of the polycarbonate through the application of the first modifier and the second modifier.
Description
Technical Field
The disclosure relates to the field of compositions of high molecular compounds, and particularly relates to a polycarbonate composition, a shell, a terminal and a preparation method of the shell.
Background
Polycarbonate is widely used in the field of consumer electronics due to its advantages such as good impact resistance, electrical properties, dimensional stability, etc. The polycarbonate belongs to an amorphous polymer, and has the problems of high melt viscosity, poor fluidity and difficult processing after melting. In practical application, the processing requirement can be met through flow modification. Especially in the field of consumer electronics, where demands on mobility are high. In the field of consumer electronics, as the weight of electronic equipment is reduced, the thickness of plastic parts becomes thinner and thinner, and the appearance defects such as floating fibers, flow marks, stress marks and the like of the shell of the electronic equipment can be inhibited by improving the fluidity of polycarbonate. However, in practical applications, the addition of the modifier increases the flowability of the polycarbonate and also decreases the temperature resistance of the polycarbonate.
Disclosure of Invention
The present disclosure provides a polycarbonate composition, a housing, a terminal, and a method of making a housing.
According to a first aspect of embodiments of the present disclosure, there is provided a polycarbonate composition comprising: a polycarbonate composition, wherein the polycarbonate composition comprises:
a polycarbonate, a first modifier, and a second modifier;
wherein the first modifier is used for improving the flowability of the polycarbonate;
the second modifier is at least used for improving the temperature resistance of the polycarbonate.
In some embodiments, the second modifier comprises: phenyl methacrylate-styrene-acrylonitrile copolymer and/or hyperbranched polyester;
the first modifier comprises: a phosphate ester.
In some embodiments, the polycarbonate composition further comprises:
an impact modifier; wherein the impact modifier comprises at least one of:
ethylene-methyl acrylate copolymers, methyl methacrylate-butadiene-styrene terpolymers, silicone-acrylate rubbers or polyolefin elastomers.
In some embodiments, the polycarbonate composition further comprises:
an additive; wherein the additive comprises at least one of:
antioxidants, mold release agents, lubricants, colorants, fillers, ultraviolet stabilizers, flame retardants, or antistatic agents.
In some embodiments, the polycarbonate composition comprises:
60 to 95 weight percent of polycarbonate;
0.5 to 4wt% of the phosphate ester;
0.5 to 10wt% of the phenyl methacrylate-styrene-acrylonitrile copolymer;
0.1 to 5wt% of the hyperbranched polyester;
1-15% by weight of the impact modifier, and
0.1 to 10wt% of the additive.
In some embodiments, the polycarbonate composition comprises:
0.5 to 5% by weight of the phenyl methacrylate-styrene-acrylonitrile copolymer;
and/or;
1 to 3% by weight of a hyperbranched polyester.
In some embodiments, the phosphate ester comprises: triphenyl phosphate, and/or resorcinol bis (diphenyl phosphate).
According to a second aspect of the embodiments of the present disclosure, there is provided a housing made of the polycarbonate composition of the embodiments of the first aspect.
According to a third aspect of the embodiments of the present disclosure, a mobile terminal is provided, which includes the housing according to the second aspect.
According to a fourth aspect of the embodiments of the present disclosure, there is provided a method of manufacturing a case, including:
mixing the polycarbonate, the first modifier and the second modifier to obtain a polycarbonate composition; wherein the first modifier is used for improving the flowability of the polycarbonate; the second modifier is at least used for improving the temperature resistance of the polycarbonate;
forming the polycarbonate composition into the housing.
In some embodiments, the forming the polycarbonate composition into the housing comprises:
melting the polycarbonate composition;
solidifying the polycarbonate composition in a molten state to obtain the shell.
In some embodiments, the second modifier comprises: phenyl methacrylate-styrene-acrylonitrile copolymer and/or hyperbranched polyester;
the first modifier comprises: a phosphate ester.
In some embodiments, the method further comprises:
mixing an impact modifier with the polycarbonate, the first modifier, and the second modifier; wherein the impact modifier comprises at least one of:
ethylene-methyl acrylate copolymers, methyl methacrylate-butadiene-styrene terpolymers, silicone-acrylate rubbers or polyolefin elastomers.
In some embodiments, the method further comprises:
adding an additive; wherein the additive comprises at least one of:
antioxidants, mold release agents, lubricants, colorants, fillers, ultraviolet stabilizers, flame retardants, or antistatic agents.
In some embodiments, the polycarbonate composition comprises:
60 to 95 weight percent of polycarbonate;
0.5 to 4wt% of the phosphate ester;
0.5 to 10wt% of the phenyl methacrylate-styrene-acrylonitrile copolymer;
0.1 to 5wt% of the hyperbranched polyester;
1 to 15% by weight of said impact modifier, and
0.1 to 10wt% of the additive.
In some embodiments, the phosphate ester comprises: triphenyl phosphate, and/or resorcinol bis (diphenyl phosphate).
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
as can be seen from the above examples, the present disclosure utilizes the first modifier to increase the flowability of the polycarbonate such that the flowability of the polycarbonate composition meets the processing requirements. The second modifier enhances the problem of temperature resistance reduction of the polycarbonate caused by the use of the first modifier, and further improves the temperature resistance of the polycarbonate on the basis of ensuring the fluidity of the polycarbonate. Therefore, the flowability and the temperature resistance of the polycarbonate are simultaneously improved by the application of the first modifier and the second modifier.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram illustrating an external appearance of a housing according to an exemplary embodiment;
fig. 2 is a schematic flow diagram illustrating a method of making a housing according to an exemplary embodiment.
Detailed Description
Exemplary embodiments will be described in detail herein. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of compositions or methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
In the description of the present disclosure, it is to be understood that all numbers expressing quantities, percentages, and so forth, in the specification are to be understood as being modified in all instances by the term "about" unless otherwise indicated by the operating examples.
Embodiments of the present disclosure provide a polycarbonate composition comprising:
a polycarbonate, a first modifier, and a second modifier;
wherein the first modifier is used for improving the flowability of the polycarbonate;
the second modifier is at least used for improving the temperature resistance of the polycarbonate.
Without limitation, the first flow modifier can increase the flowability of the polycarbonate by reducing intermolecular forces of the polycarbonate.
In some embodiments, the first modifier and the second modifier are both flow modifiers. In this case, the second modifier may be used to improve the flowability of the polycarbonate in addition to improving the temperature resistance of the polycarbonate.
Generally, the greater the amount of the first modifier, the more advantageous the flowability of the polycarbonate. However, higher amounts of the first modifier reduce the glass transition temperature and heat distortion temperature of the polycarbonate, which reduces the temperature resistance of the polycarbonate. The addition of the second modifier can not only ensure the improvement of the fluidity of the polycarbonate by the first modifier, but also even further improve the fluidity of the polycarbonate, and can also improve the temperature resistance of the polycarbonate, so that the fluidity and the temperature resistance of the polycarbonate composition can both meet the processing requirements, especially meet the requirements in the field of consumer electronic equipment. For example: the polycarbonate compositions of the embodiments of the present disclosure can be applied to various articles in the electronic and electrical fields. For example: the polycarbonate composition disclosed by the embodiment of the disclosure can be used for manufacturing a shell of a terminal, and the terminal shell manufactured by the polycarbonate composition disclosed by the embodiment of the disclosure reduces the defects of floating fibers, flow marks, stress marks and the like, and improves the product quality.
Without limitation, polycarbonates include aromatic polycarbonates and/or aromatic polyester carbonates prepared according to known methods in the literature. For example: aromatic polycarbonates may be prepared by the reaction of diphenols with diphenyl carbonate using the melt polymerization process. Wherein the diphenol comprises at least one of: diphenols include hydroquinone, resorcinol, dihydroxydiphenols, bis- (hydroxyphenyl) -ethers, bis- (hydroxyphenyl) -sulfoxides, bis- (hydroxyphenyl) -ketones, bis- (hydroxyphenyl) -sulfones and alpha, alpha-bis- (hydroxyphenyl) -diisopropyl-benzene and ring-brominated and/or ring-chlorinated derivatives thereof.
The first modifier is utilized to improve the flowability of the polycarbonate, so that the flowability of the polycarbonate composition meets the processing requirement. The second modifier enhances the problem of temperature resistance reduction of the polycarbonate caused by the use of the first modifier, and further improves the temperature resistance of the polycarbonate on the basis of ensuring the fluidity of the polycarbonate. Therefore, the fluidity and the temperature resistance of the polycarbonate are simultaneously improved by the application of the first modifier and the second modifier.
In other alternative embodiments, the second modifier comprises: phenyl methacrylate-styrene-acrylonitrile copolymers and/or hyperbranched polyesters.
The phenyl methacrylate-styrene-acrylonitrile copolymer and the hyperbranched polyester both have a flow promoting effect, one or both of the copolymer and the hyperbranched polyester are used together with the first modifier, and the temperature resistance of the polycarbonate can be improved on the basis of improving the flowability of the polycarbonate.
Compared with the second modifier which only contains the phenyl methacrylate-styrene-acrylonitrile copolymer or the hyperbranched polyester, the simultaneous addition of the first modifier, the phenyl methacrylate-styrene-acrylonitrile copolymer and the hyperbranched polyester can further improve the flowability and the temperature resistance of the polycarbonate composition.
Without limitation, hyperbranched polyesters can be obtained by esterification of a polybasic acid with a polyol monomer.
Hyperbranched polyesters include, but are not limited to: polyesters having uncrosslinked terminal hydroxyl or carboxyl groups, for example: the hyperbranched polyester is hydroxyl-terminated hyperbranched polyester. Polyhydroxy carboxyl compound and catalyst can be added into polyol compound, and under the protection of inert gas, the polyhydroxy carboxyl compound and the polyol compound react to obtain hydroxyl-terminated hyperbranched polyester.
In other alternative embodiments, the first modifier comprises: a phosphate ester.
The phosphate ester can reduce the acting force among polycarbonate molecules, reduce the viscosity of the molten polycarbonate and further improve the fluidity of the polycarbonate.
In some embodiments, the polycarbonate is added with three materials of triphenyl phosphate, phenyl methacrylate-styrene-acrylonitrile copolymer and hyperbranched polyester at the same time, so that higher melt index, HDT (Heat deflection temperature) and Tg (transition temperature) can be obtained, which indicates that the polycarbonate composition has both fluidity and temperature resistance.
In the disclosed embodiments, the phosphate ester may be at least one of an aromatic phosphate ester and/or an aliphatic-aromatic phosphate ester. For example: aromatic phosphates include, but are not limited to: tricresyl phosphate, trixylenyl phosphate, bisphenol A-polyphenyl phosphate, or diphosphatechol hypophosphoryl ester, and the like. Aliphatic-aromatic phosphates include, but are not limited to: diphenyl (2-ethylhexyl) phosphate, diphenyl-2-acryloyloxyethyl phosphate, diphenyl-2-methacryloyloxyethyl phosphate, phenyl neopentyl phosphate, or the like.
In some embodiments, the phosphate ester comprises: triphenyl phosphate, and/or resorcinol bis (diphenyl phosphate).
In other alternative embodiments, the polycarbonate composition further comprises:
an impact modifier; wherein the impact modifier comprises at least one of:
ethylene-methyl acrylate copolymers, methyl methacrylate-butadiene-styrene terpolymers, silicone-acrylate rubbers or polyolefin elastomers.
The impact modifier can improve the impact strength of the polycarbonate and improve the mechanical strength of the polycarbonate.
Polyolefin elastomers are copolymers of ethylene with propylene or alpha-olefins. Among them, the α -olefin may be 1-butene, 1-hexene, 1-octene, or the like.
In other alternative embodiments, the polycarbonate composition further comprises:
an additive; wherein the additive comprises at least one of:
antioxidants, mold release agents, lubricants, colorants, fillers, ultraviolet stabilizers, flame retardants, or antistatic agents.
In practical application, different kinds of additives can be added according to requirements. For example: antioxidants may be added as needed to improve the oxidation resistance of the polycarbonate. If it is desired to improve the flame retardancy of the polycarbonate, a flame retardant may be added. If the mechanical strength of the polycarbonate is to be increased, a filler such as glass fiber or silica may be added.
Without limitation, the antioxidant comprises at least one of: alkylated monophenols, alkylthiomethylphenols, hydroquinones and alkylated hydroquinones, tocopheryl compounds, hydroxylated thiodiphenyl ether, alkylidenebisphenols, O-benzyl compounds, N-benzyl compounds and S-benzyl compounds.
The release agent comprises at least one of: pentaerythritol tetrastearate, erythritol, glycerol.
The lubricant may be a long chain fatty acid or a salt thereof, or the lubricant may be polyethylene wax or the like. Among these, long chain fatty acids include, but are not limited to: stearic acid or montan wax, salts of long chain fatty acids including but not limited to calcium stearate or zinc stearate.
The colorant may be an inorganic pigment, an organic pigment, or a dye, wherein the inorganic pigment includes, but is not limited to: iron dioxide, ultramarine blue, iron oxide, and carbon black. Organic pigments include, but are not limited to, phthalocyanines, quinacridone pigments, and perylene pigments. Dyes include, but are not limited to, nigrosine or anthraquinone.
The ultraviolet stabilizer comprises at least one of the following: benzophenones, benzotriazoles and salicylates.
The flame retardant may be selected from the types and amounts of flame retardants commonly used in the industry. For example, the flame retardant comprises at least one of: BDP (bisphenol a bis (diphenyl phosphate)), triphenyl phosphate (TPP), polyphosphazine (Polyphosphazene) or resorcinol bis (diphenyl phosphate) (RDP).
Antistatic agent: conductive carbon black, carbon fibers, carbon nanotubes, and organic antistatic agents, such as polyalkylene ethers, alkyl sulfonates, or polyamide-containing polymers.
It is to be understood that the additives are not limited to the kinds exemplified in the examples of the present disclosure, and other additives may be added as needed, and the other additives and the amounts thereof may be used as those known to those skilled in the art and appropriately adjusted as necessary.
In other alternative embodiments, the polycarbonate composition comprises:
60 to 95 weight percent of polycarbonate;
0.5 to 4wt% of the phosphate ester;
0.5 to 10wt% of the phenyl methacrylate-styrene-acrylonitrile copolymer;
0.1 to 5wt% of the hyperbranched polyester;
1 to 15% by weight of said impact modifier, and
0.1 to 10wt% of the additive.
In the examples of the present disclosure, the contents of the respective components are expressed by weight, that is, wt%, unless otherwise specified.
In some embodiments, the amount of polycarbonate in the polycarbonate composition may be: 60wt%, 70wt%, 75wt%, 80wt%, 85wt%, 86wt%, 88wt%, 90wt%, 92wt%, or 95wt%, or any value therebetween. For example: the polycarbonate composition comprises: 80 to 95wt% of said polycarbonate.
In some embodiments, the amount of phosphate ester in the polycarbonate composition may be: 0.5wt%, 1.0wt%, 1.2wt%, 1.5wt%, 2.0wt%, 2.5wt%, 3.0wt%, 3.5wt%, or 4.0wt%, or any value in between. For example: the polycarbonate composition comprises: 1 to 3wt% of the phosphate.
In some embodiments, the phenyl methacrylate-styrene-acrylonitrile copolymer content in the polycarbonate composition may be: 0.5wt%, 1.0wt%, 1.5wt%, 2.0wt%, 3.0wt%, 4.0wt%, 5.0wt%, 6.0wt%, 7.5wt%, 8.0wt%, 9.0wt%, or 10.0wt%, or any value in between. For example: the polycarbonate composition comprises: 0.5 to 5% by weight of the phenyl methacrylate-styrene-acrylonitrile copolymer.
In some embodiments, the amount of hyperbranched polyester in the polycarbonate composition may be: 0.1wt%, 0.5wt%, 1.0wt%, 1.5wt%, 2.0wt%, 2.5wt%, 3.0wt%, 4.0wt%, or 5.0wt%, or any value in between.
In some embodiments, the amount of impact modifier in the polycarbonate composition may be: 1.0wt%, 3.0wt%, 5.0wt%, 6.0wt%, 8.0wt%, 10.0wt%, or 15.0wt%, or any value in between. For example: the polycarbonate composition comprises: 3 to 6 weight percent.
In some embodiments, the amount of impact modifier in the polycarbonate composition may be: 0.1wt%, 0.5wt%, 1.0wt%, 2.0wt%, 5.0wt%, 7.0wt%, or 10.0wt%, or any value in between. For example: the polycarbonate composition comprises: 0.1 to 0.3wt percent.
The embodiment of the disclosure also provides a shell which is made of the polycarbonate composition in any one of the embodiments.
The housing may be, without limitation, a housing of a communication device, a home appliance, or the like.
The embodiment of the disclosure also provides a mobile terminal, which comprises the shell in any embodiment.
Mobile terminals include, but are not limited to: a mobile phone, a tablet computer, a notebook computer, a television or a wearable device, etc.
Fig. 1 schematically shows an external structure of a mobile phone case.
As shown in fig. 2, an embodiment of the present disclosure further provides a method for manufacturing a housing, including:
step S101, mixing polycarbonate, a first modifier and a second modifier to obtain a polycarbonate composition; wherein the first modifier is used for improving the flowability of the polycarbonate; the second modifier is at least used for improving the temperature resistance of the polycarbonate;
step S102, forming the polycarbonate composition into the shell.
In step S101, the mixing order of the polycarbonate, the first modifier and the second modifier is not limited. For example: the first modifier and the second modifier can be premixed, and then the rest components such as polycarbonate and the like can be mixed; the first modifier, the second modifier and the remaining components, such as polycarbonate, may also be mixed simultaneously.
In some embodiments, the polycarbonate, the first modifier, and the second modifier are all in a granular or powder form, and the polycarbonate, the first modifier, and the second modifier are mixed uniformly, for example, the polycarbonate, the first modifier, and the second modifier can be added into a stirring container at the same time and stirred uniformly, and at this time, the obtained polycarbonate composition can be in a solid state.
In some embodiments, the polycarbonate may be melted and then the additional components, such as the first modifier and the second modifier, may be added, in which case the resulting polycarbonate composition may be in a molten state.
In step S102, if the obtained polycarbonate composition is solid, the polycarbonate composition needs to be melted again and then cured to form the housing.
In some embodiments, the mixing a polycarbonate, a first modifier, and a second modifier to provide a polycarbonate composition comprises: a melt polycarbonate composition; curing the polycarbonate composition to form a pelletized polycarbonate composition; the forming the polycarbonate composition into the housing comprises: melting the pelletized polycarbonate composition; solidifying the polycarbonate composition in the form of pellets in a molten state to obtain the shell. The polycarbonate composition is formed into granules and then manufactured into the shell, so that the process of mixing the polycarbonate composition and the process of preparing the shell can be separated, and the industrial production is facilitated.
In some embodiments, the forming the polycarbonate composition into the housing comprises:
melting the polycarbonate composition;
solidifying the polycarbonate composition in a molten state to obtain the shell.
In practical application, the polycarbonate composition is heated to make all components in the polycarbonate composition such as the polycarbonate, the first modifier and the second modifier in a flowing state, so that the polycarbonate composition is added into a mold, and the polycarbonate composition in a molten state in the mold is cooled, so that the polycarbonate composition is solidified to form a shell with a required shape.
In some embodiments, the mixing the polycarbonate, the first modifier, and the second modifier to provide a polycarbonate composition, comprises:
melting the polycarbonate;
adding the first modifier and the second modifier to the polycarbonate in the molten state;
the forming the polycarbonate composition into the housing comprises:
curing the polycarbonate composition to obtain the shell.
In some embodiments, the mixing the polycarbonate, the first modifier, and the second modifier to provide a polycarbonate composition, comprises:
melting the polycarbonate;
adding the first modifier and the second modifier to the polycarbonate in the molten state.
In some embodiments, the second modifier comprises: phenyl methacrylate-styrene-acrylonitrile copolymers and/or hyperbranched polyesters.
In some embodiments, the first modifier comprises: a phosphate ester.
In some embodiments, the method further comprises:
mixing an impact modifier with the polycarbonate, the first modifier, and the second modifier; wherein the impact modifier comprises at least one of:
ethylene-methyl acrylate copolymers, methyl methacrylate-butadiene-styrene terpolymers, silicone-acrylate rubbers or polyolefin elastomers.
In some embodiments, the method further comprises:
adding an additive; wherein the additive comprises at least one of:
antioxidants, mold release agents, lubricants, colorants, fillers, ultraviolet stabilizers, flame retardants, or antistatic agents.
In some embodiments, the polycarbonate composition comprises:
60 to 95 weight percent of polycarbonate;
0.5 to 4wt% of the phosphate ester;
0.5 to 10wt% of the phenyl methacrylate-styrene-acrylonitrile copolymer;
0.1 to 5wt% of the hyperbranched polyester;
1 to 15% by weight of said impact modifier, and
0.1 to 10wt% of the additive.
In some embodiments, the phosphate ester comprises: triphenyl phosphate, and/or resorcinol bis (diphenyl phosphate).
In some embodiments, the process for preparing a pelletized polycarbonate composition is substantially: premixing the impact modifier with an additive (such as a mold release agent) to obtain a premixed mixture; mixing the pre-mixed mixture with the other components of the polycarbonate composition; the pellets are obtained by granulation, for example, by a twin-screw extruder.
The technical solutions of the present disclosure are further described below with reference to specific examples, and it should be understood that the present disclosure is not limited to the following examples.
In examples 1 and 2, and comparative examples 1 to 3, the formulations of the respective components are shown in table 1, and the properties of the test products of the respective examples and comparative examples are shown in table 2. Wherein the antioxidant is alkylthiomethylphenol, the impact modifier is ethylene-methyl acrylate copolymer, examples 1 and 2, and comparative examples 1 to 3 are different only in the components and amounts of the polycarbonate compositions shown in Table 1, and the preparation method and the performance test methods are the same.
The melt index was measured according to ASTM D1238 under 260 deg.C/2.16 kg.
Both the strength at break and the elongation at break were tested according to ASTM D638.
Flexural strength was tested according to ASTM D790.
Notched bar impact strength was tested according to ASTM D256.
HDT was measured according to ASTM D648 standard.
Tg was measured by DSC (Differential Scanning Calorimeter).
The melt index test may be conducted using a polycarbonate composition in the form of pellets. The samples with properties of breaking strength, elongation at break, notched impact strength, HDT and Tg were all formed by injection molding.
The parenthesis in the performance indicates the unit of a specific performance. For example: the bending strength is in MPa.
TABLE 1 compositions of polycarbonate composition samples of examples and comparative examples
TABLE 2 Properties of the polycarbonate composition samples of examples and comparative examples
As shown in tables 1 and 2, from the performance data of comparative example 2 and comparative example 3, it can be seen that the polycarbonate composition of comparative example 2 having a larger amount of phosphate ester has a larger melt index, but both HDT and Tg are reduced, and thus, increasing the amount of phosphate ester increases the flowability of the polycarbonate composition, but decreases the temperature resistance of the polycarbonate composition.
It is understood from comparative example 1 compared with comparative example 2 and/or comparative example 3 that, even though the amount of phosphate ester is reduced, the flowability of the polycarbonate composition is still high and the values of HDT and Tg are improved after the phenyl methacrylate-styrene-acrylonitrile copolymer is added, i.e., the addition of the phenyl methacrylate-styrene-acrylonitrile copolymer can improve the flowability of the polycarbonate composition and also improve the temperature resistance of the polycarbonate composition.
From examples 1 and 2, comparison with the data of comparative examples 1 to 3 shows that the simultaneous addition of three materials, namely triphenyl phosphate, phenyl methacrylate-styrene-acrylonitrile copolymer and hyperbranched polyester, to polycarbonate can further increase the melt index, HDT and Tg of the polycarbonate composition. The results show that the polycarbonate modified by the first modifier and the second modifier has both flowability and temperature resistance. By comparing the disclosed examples with the comparative examples, the phosphate ester increases the flowability of the polycarbonate while lowering the Tg and HDT. The polycarbonate composition can meet the requirements of the mobile phone and other terminals on the processability and temperature resistance after the shell is thinned.
The methods disclosed in the several method embodiments provided in this disclosure may be combined arbitrarily without conflict to arrive at new method embodiments.
The features disclosed in the several product embodiments provided in this disclosure may be combined in any combination to yield new product embodiments without conflict.
The features disclosed in the several method or product embodiments provided in this disclosure may be combined in any combination to yield new method embodiments or device embodiments without conflict.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the specific components that have been described above and shown in the tables, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (16)
1. A polycarbonate composition, wherein the polycarbonate composition comprises:
a polycarbonate, a first modifier, and a second modifier;
wherein the first modifier is used for improving the flowability of the polycarbonate;
the second modifier is at least used for improving the temperature resistance of the polycarbonate.
2. The polycarbonate composition of claim 1,
the second modifier comprises: phenyl methacrylate-styrene-acrylonitrile copolymers and/or hyperbranched polyesters;
the first modifier comprises: a phosphate ester.
3. The polycarbonate composition of claim 2, further comprising:
an impact modifier; wherein the impact modifier comprises at least one of:
ethylene-methyl acrylate copolymers, methyl methacrylate-butadiene-styrene terpolymers, silicone-acrylate rubbers or polyolefin elastomers.
4. The polycarbonate composition of claim 3, further comprising:
an additive; wherein the additive comprises at least one of:
antioxidants, mold release agents, lubricants, colorants, fillers, ultraviolet stabilizers, flame retardants, or antistatic agents.
5. The polycarbonate composition of claim 4, wherein the polycarbonate composition comprises:
60 to 95 weight percent of polycarbonate;
0.5 to 4wt% of the phosphate ester;
0.5 to 10wt% of the phenyl methacrylate-styrene-acrylonitrile copolymer;
0.1 to 5wt% of the hyperbranched polyester;
1 to 15% by weight of said impact modifier, and
0.1 to 10wt% of the additive.
6. The polycarbonate composition of claim 5, wherein the polycarbonate composition comprises:
0.5 to 5% by weight of the phenyl methacrylate-styrene-acrylonitrile copolymer;
and/or;
1 to 3% by weight of a hyperbranched polyester.
7. The polycarbonate composition of claim 2, wherein the phosphate ester comprises: triphenyl phosphate, and/or resorcinol bis (diphenyl phosphate).
8. A housing made from the polycarbonate composition of any of claims 1-7.
9. A mobile terminal characterized by comprising the housing of claim 8.
10. A method of making a housing, comprising:
mixing the polycarbonate, the first modifier and the second modifier to obtain a polycarbonate composition; wherein the first modifier is used for improving the flowability of the polycarbonate; the second modifier is at least used for improving the temperature resistance of the polycarbonate;
forming the polycarbonate composition into the housing.
11. The method of making a housing of claim 10, wherein said forming said polycarbonate composition into said housing comprises:
melting the polycarbonate composition;
solidifying the polycarbonate composition in a molten state to obtain the shell.
12. The method of manufacturing a housing according to claim 10 or 11, wherein the second modifier comprises: phenyl methacrylate-styrene-acrylonitrile copolymers and/or hyperbranched polyesters;
the first modifier comprises: a phosphate ester.
13. The method of making a housing of claim 12, further comprising:
mixing an impact modifier with the polycarbonate, the first modifier, and the second modifier; wherein the impact modifier comprises at least one of:
ethylene-methyl acrylate copolymers, methyl methacrylate-butadiene-styrene terpolymers, silicone-acrylate rubbers or polyolefin elastomers.
14. The method of making a housing of claim 13, further comprising:
adding an additive; wherein the additive comprises at least one of:
antioxidants, mold release agents, lubricants, colorants, fillers, ultraviolet stabilizers, flame retardants, or antistatic agents.
15. The method of making a housing of claim 14, wherein the polycarbonate composition comprises:
60 to 95 weight percent of polycarbonate;
0.5 to 4wt% of the phosphate ester;
0.5 to 10wt% of the phenyl methacrylate-styrene-acrylonitrile copolymer;
0.1 to 5wt% of the hyperbranched polyester;
1 to 15% by weight of said impact modifier, and
0.1 to 10wt% of the additive.
16. The method of preparing a housing of claim 12, wherein the phosphate ester comprises: triphenyl phosphate, and/or resorcinol bis (diphenyl phosphate).
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