CN104725811A - Modified PC/PET alloy and preparation method thereof - Google Patents
Modified PC/PET alloy and preparation method thereof Download PDFInfo
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- CN104725811A CN104725811A CN201310715546.0A CN201310715546A CN104725811A CN 104725811 A CN104725811 A CN 104725811A CN 201310715546 A CN201310715546 A CN 201310715546A CN 104725811 A CN104725811 A CN 104725811A
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Health & Medical Sciences (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a modified PC/PET alloy and a preparation method thereof. The modified PC/PET alloy comprises, by mass, 40-70% of PC, 10-30% of PET, 3-8% of a heat conduction agent, 5-10% of a conductive filling material, 1-3% of a compatilizer, 0.1-1% of a chain extender, 0.1-0.5% of an anti-oxidant and 0.1-1.5% of ethylene bisstearamide. The heat conduction agent is ultrafine aluminum nitride powder subjected to surface waterproof and antioxidation treatment. The conductive filling material is one of carbon fibers, carbon black and carbon nanotubes. The modified PC/PET alloy has rigidity and heat resistance of PC, solvent resistance of PRT, excellent electroconductive and thermal conductive properties, good processing performances, a low cost, and good practical effects and economic benefits in the fields of electric products, instruments, illumination and communication.
Description
Technical field
The present invention relates to technical field of polymer materials, specifically a kind of modification PC/PET Alloy And Preparation Method.
Background technology
PC/PET alloy (polycarbonate/polyethylene terephthalate) is a kind of engineering plastics of excellent performance, all can use, such as, be applied to the fields such as electronic apparatus, automotive industry, machinery, optical instruments, medicine, building in a lot of occasion.But because PC is non-crystalline polymer, PET is crystalline polymer, PC/PET alloy belongs to typical amorphous/crystalline co-mixing system, and both consistencies are bad, and cause its toughness bad, mechanical strength is not high.In addition, show after deliberation, in PC/PET alloy system, add three components, its performance can be improved further.
Summary of the invention
The modification PC/PET Alloy And Preparation Method that the object of the present invention is to provide a kind of comprehensive mechanical property good, with low cost.
The technical solution adopted for the present invention to solve the technical problems is: a kind of modification PC/PET alloy, and its component by mass percent proportioning is: PC 40% ~ 70%, PET 10% ~ 30%, thermal conducting agent 3% ~ 8%, conductive filler material 5% ~ 10%, compatilizer 1% ~ 3%, chainextender 0.1% ~ 1%, oxidation inhibitor 0.1% ~ 0.5%, ethylene bis stearamide 0.1% ~ 1.5%.
Described PC is bisphenol A-type aromatic copolycarbonate.
Described PET is polyethylene terephthalate, and its intrinsic viscosity is 0.6 ~ 0.9dL/g.
Described thermal conducting agent is the superfine aluminium nitride powder of surface through waterproof and antioxidation treatment, and its particle diameter is between 0.2 ~ 20 μm, and density is 2.35 ~ 2.38g/cm
3.
Described conductive filler material is the one in carbon fiber, carbon black, carbon nanotube.
Described compatilizer is ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer.
Described chainextender is pyromellitic dianhydride.
Described oxidation inhibitor is Hinered phenols antioxidant 1010 and the compound of phosphite ester kind antioxidant 168 in quality 1:2 ratio.
The preparation method of a kind of modification PC/PET alloy of the present invention, comprises the following steps:
(1), by PC in blast drier at 110 DEG C ~ 130 DEG C temperature dry 3 ~ 4 hours, PET at 130 DEG C ~ 150 DEG C dry 3 ~ 4 hours, stand-by;
(2), dry PET, thermal conducting agent, conductive filler material, chainextender, oxidation inhibitor, ethylene bis stearamide will be taken by weight ratio, add respectively in high-speed mixer, after to make to stir together 2 ~ 15 minutes all mixed, discharging add in twin screw extruder carry out melt extruding, cooling granulation, and stand-by after drying;
(3), the product taking dry PC and step (2) is by weight ratio added in high-speed mixer, add the compatilizer taken by weight ratio simultaneously, after to make to stir together 3 ~ 15 minutes all mixed, discharging adds in twin screw extruder, by twin screw extruder fully plastify blended after extrude, cooling granulation, namely obtain the present invention.
The invention has the beneficial effects as follows, the present invention had both had rigidity and the thermotolerance of PC, there is again the solvent resistance of PET, and electrical and thermal conductivity performance is excellent, good processability, cost is low, and in the fields such as electronic apparatus, instrument, illumination, communication, application has good practical function and economic benefit.
Embodiment
Technical scheme of the present invention is further illustrated below in conjunction with concrete preferred embodiment.
A kind of modification PC/PET alloy, its component by mass percent proportioning is: PC 55%, PET 24%, thermal conducting agent 5%, carbon black 10%, ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer 3%, pyromellitic dianhydride 1%, oxidation inhibitor 0.5%, ethylene bis stearamide 1.5%.Wherein, described PC is bisphenol A-type aromatic copolycarbonate; Described PET is polyethylene terephthalate, and its intrinsic viscosity is 0.6 ~ 0.9dL/g; Described thermal conducting agent is the superfine aluminium nitride powder of surface through waterproof and antioxidation treatment, and its particle diameter is between 0.2 ~ 20 μm, and density is 2.35 ~ 2.38g/cm
3; Described oxidation inhibitor is Hinered phenols antioxidant 1010 and the compound of phosphite ester kind antioxidant 168 in quality 1:2 ratio.
Its preparation method is: (1), by PC in blast drier at 110 DEG C ~ 130 DEG C temperature dry 3 ~ 4 hours, PET at 130 DEG C ~ 150 DEG C dry 3 ~ 4 hours, stand-by; (2), dry PET, thermal conducting agent, carbon black, pyromellitic dianhydride, oxidation inhibitor, ethylene bis stearamide will be taken by weight ratio, add respectively in high-speed mixer, after to make to stir together 2 ~ 15 minutes all mixed, discharging add in twin screw extruder carry out melt extruding, cooling granulation, and stand-by after drying; (3), the product taking dry PC and step (2) is by weight ratio added in high-speed mixer, add the ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer taken by weight ratio simultaneously, after to make to stir together 3 ~ 15 minutes all mixed, discharging adds in twin screw extruder, by twin screw extruder fully plastify blended after extrude, cooling granulation, namely obtain the present invention.
Claims (7)
1. a modification PC/PET alloy, it is characterized in that, its component by mass percent proportioning is: PC 40% ~ 70%, PET 10% ~ 30%, thermal conducting agent 3% ~ 8%, conductive filler material 5% ~ 10%, compatilizer 1% ~ 3%, chainextender 0.1% ~ 1%, oxidation inhibitor 0.1% ~ 0.5%, ethylene bis stearamide 0.1% ~ 1.5%.
2. a kind of modification PC/PET alloy according to claim 1, is characterized in that, described thermal conducting agent is the superfine aluminium nitride powder of surface through waterproof and antioxidation treatment, and its particle diameter is between 0.2 ~ 20 μm, and density is 2.35 ~ 2.38g/cm
3.
3. a kind of modification PC/PET alloy according to claim 1, it is characterized in that, described conductive filler material is the one in carbon fiber, carbon black, carbon nanotube.
4. a kind of modification PC/PET alloy according to claim 1, is characterized in that, described compatilizer is ethylene-ethylacrylate-glycidyl methacrylate triblock copolymer.
5. a kind of modification PC/PET alloy according to claim 1, it is characterized in that, described chainextender is pyromellitic dianhydride.
6. a kind of modification PC/PET alloy according to claim 1, is characterized in that, described oxidation inhibitor is Hinered phenols antioxidant 1010 and the compound of phosphite ester kind antioxidant 168 in quality 1:2 ratio.
7. the preparation method of a kind of modification PC/PET alloy according to claim 1, is characterized in that, comprise the following steps:
(1), by PC in blast drier at 110 DEG C ~ 130 DEG C temperature dry 3 ~ 4 hours, PET at 130 DEG C ~ 150 DEG C dry 3 ~ 4 hours, stand-by;
(2), dry PET, thermal conducting agent, conductive filler material, chainextender, oxidation inhibitor, ethylene bis stearamide will be taken by weight ratio, add respectively in high-speed mixer, after to make to stir together 2 ~ 15 minutes all mixed, discharging add in twin screw extruder carry out melt extruding, cooling granulation, and stand-by after drying;
(3), the product taking dry PC and step (2) is by weight ratio added in high-speed mixer, add the compatilizer taken by weight ratio simultaneously, after to make to stir together 3 ~ 15 minutes all mixed, discharging adds in twin screw extruder, by twin screw extruder fully plastify blended after extrude, cooling granulation, namely obtain the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310715546.0A CN104725811A (en) | 2013-12-23 | 2013-12-23 | Modified PC/PET alloy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310715546.0A CN104725811A (en) | 2013-12-23 | 2013-12-23 | Modified PC/PET alloy and preparation method thereof |
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| CN104725811A true CN104725811A (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310715546.0A Pending CN104725811A (en) | 2013-12-23 | 2013-12-23 | Modified PC/PET alloy and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105331077A (en) * | 2015-11-25 | 2016-02-17 | 张符斌 | PC-PET (Polycarbonate-Polyethylene Terephthalate)-based LED (Light Emitting Diode) heat dissipation material containing modified calcium sulfate whisker-carbon nano tube and preparation method of PC-PET-based LED heat dissipation material |
| CN106433077A (en) * | 2016-11-16 | 2017-02-22 | 揭阳市腾晟科技咨询有限公司 | Polycarbonate heat conducting insulation material and preparation method thereof |
-
2013
- 2013-12-23 CN CN201310715546.0A patent/CN104725811A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105331077A (en) * | 2015-11-25 | 2016-02-17 | 张符斌 | PC-PET (Polycarbonate-Polyethylene Terephthalate)-based LED (Light Emitting Diode) heat dissipation material containing modified calcium sulfate whisker-carbon nano tube and preparation method of PC-PET-based LED heat dissipation material |
| CN106433077A (en) * | 2016-11-16 | 2017-02-22 | 揭阳市腾晟科技咨询有限公司 | Polycarbonate heat conducting insulation material and preparation method thereof |
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Application publication date: 20150624 |