CN104845316A - Carbon fiber filled and modified PC/PET alloy and preparation method thereof - Google Patents
Carbon fiber filled and modified PC/PET alloy and preparation method thereof Download PDFInfo
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- CN104845316A CN104845316A CN201410672579.6A CN201410672579A CN104845316A CN 104845316 A CN104845316 A CN 104845316A CN 201410672579 A CN201410672579 A CN 201410672579A CN 104845316 A CN104845316 A CN 104845316A
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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
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Inorganic Fibers (AREA)
Abstract
The present invention discloses a carbon fiber filled and modified PC/PET alloy and a preparation method thereof, wherein the carbon fiber filled and modified PC/PET alloy comprises, by mass, 40-70% of PC, 15-30% of PET, 2-5% of SMA, 5-15% of modified carbon fibers, 4-10% of a toughening agent, 0.1-0.5% of an antioxidant, and 0.1-1% of a lubricant, wherein the modified carbon fibers are short cut polyacrylonitrile carbon fibers with the surface treated by an oxidizing agent perchloric acid solution. The carbon fiber filled and modified PC/PET alloy of the present invention has beneficial effects of high strength, high modulus, high elasticity, high gloss, good electrical conductivity, good thermal conductivity, good thermal stability, strong aging resistance, good size stability, low cost, easy promotion, and the like.
Description
Technical field
The present invention relates to technical field of polymer materials, specifically a kind of filled with carbon fibers modification PC/PET Alloy And Preparation Method.
Background technology
Polycarbonate (PC) is as excellent combination property, purposes important engineering plastics kind very widely, be widely used in automobile, electric, material of construction, mechanical component, business automation equipment, packaging, sports equipment, medical treatment, health care, the field such as CD and household supplies, but also there are some defects in pure PC, as processing characteristics is poor, easy stress cracking, notch shock and low-temperature flexibility poor, wear no resistance, hardness is low, thus limits its range of application.Polyethylene terephthalate (PET) is the translucent crystalline thermoplastic polyester of one by terephthalic acid (PTA) and ethylene glycol polycondensation, there is the characteristics such as excellent wear resistance, thermotolerance, chemical proofing, electrical insulating property and mechanical strength are high, and it is cheap, be widely used in synthesis polyster fibre and thin film fabrication, civilian blowing, machinery, electronics, automobile, electrical equipment manufacture and the consumer's goods can also be used for as engineering plastics.But because the second-order transition temperature of PET, fusing point are higher, Mo Wengao, forming process difficulty, shaping cycle are long, and product surface is coarse, low in glossiness, and the shortcomings such as impelling strength is also bad, and water-absorbent is large, thus greatly limit the range of application of PET.Can make up for each other's deficiencies and learn from each other blended for PC and PET, the fields such as automobile, household electrical appliances, communication can be widely used in.But because PET is crystalline polymer, PC is non-crystalline polymer, PC/PET belongs to typical amorphous/crystallization co-mixing system, and both consistencies are bad, and cause mechanical properties decrease, thus limits the expansion of its range of application in every field.
Summary of the invention
The object of the present invention is to provide a kind of filled with carbon fibers modification PC/PET Alloy And Preparation Method of excellent in mechanical performance.
The technical solution adopted for the present invention to solve the technical problems is: filled with carbon fibers modification PC/PET alloy, and its component by mass percent proportioning is: PC 40% ~ 70%, PET 15% ~ 30%, SMA 2% ~ 5%, modified carbon fiber 5% ~ 15%, toughner 4% ~ 10%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.
Described PC is bisphenol A-type aromatic copolycarbonate.
Described PET is polyethylene terephthalate.
Described SMA is styrene-grafted copolymer-maleic anhydride.
Described modified carbon fiber is that polyacrylonitrile carbon fiber is cut through the short of oxygenant perchloric acid solution process in surface.
Described toughner is the one in ethylene-octene copolymer POE, styrene-butadiene-styrene block copolymer SBS, terpolymer EP rubber EPDM, paracril NBR, thermoplastic polyurethane TPU, maleic anhydride grafted ethene-octene copolymer POE-g-MAH, MBS ternary graft copolymer MBS.
Described oxidation inhibitor is the one in the compound of antioxidant 1010, antioxidant 1076, antioxidant 1010 or antioxidant 1076 and irgasfos 168.
Described lubricant is pentaerythritol stearate.
The preparation method of above-mentioned filled with carbon fibers modification PC/PET alloy, 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), short polyacrylonitrile carbon fiber of cutting is added 98% perchloric acid solution at 60 DEG C ~ 90 DEG C temperature, supersound process is after 30 ~ 120 minutes, with deionized water rinsing 3 ~ 5 times, then be placed in vacuum drying oven in 80 DEG C ~ 150 DEG C temperature drying 24 ~ 48h, obtain described modified carbon fiber;
(3), taking dry PC and PET by weight ratio adds in high-speed mixer, add SMA, toughner, oxidation inhibitor, lubricant by weight ratio simultaneously, and add the obtained modified carbon fiber of step (2) by weight ratio, make to stir 5 ~ 15 minutes together, discharging after fully mixing;
(4), the compound of step (3) is added in twin screw extruder, at 210 DEG C ~ 260 DEG C temperature after melting mixing extruding pelletization, obtain filled with carbon fibers modification PC/PET alloy of the present invention.
The invention has the beneficial effects as follows, the present invention has the advantages such as high strength, high-modulus, snappiness, high gloss and good conductive, heat conduction and thermostability, and ageing-resistant performance is strong, good stability of the dimension, and cost is low, is easy to promote.
Embodiment
Technical scheme of the present invention is further illustrated below in conjunction with specific embodiment.
Embodiment 1:
A kind of filled with carbon fibers modification PC/PET alloy, its component by mass percent proportioning is: PC 40%, PET 30%, SMA 4%, modified carbon fiber 15%, POE 10%, antioxidant 1010 0.2%, pentaerythritol stearate 0.8%, and described modified carbon fiber is that polyacrylonitrile carbon fiber is cut through the short of oxygenant perchloric acid solution process in surface.
Preparation method: (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), short polyacrylonitrile carbon fiber of cutting is added 98% perchloric acid solution at 60 DEG C ~ 90 DEG C temperature, supersound process is after 30 ~ 120 minutes, with deionized water rinsing 3 ~ 5 times, then be placed in vacuum drying oven in 80 DEG C ~ 150 DEG C temperature drying 24 ~ 48h, obtain described modified carbon fiber; (3), taking dry PC and PET by weight ratio adds in high-speed mixer, add SMA, POE, antioxidant 1010, pentaerythritol stearate by weight ratio simultaneously, and add the obtained modified carbon fiber of step (2) by weight ratio, make to stir 5 ~ 15 minutes together, discharging after fully mixing; (4), the compound of step (3) is added in twin screw extruder, at 210 DEG C ~ 260 DEG C temperature after melting mixing extruding pelletization, obtain filled with carbon fibers modification PC/PET alloy of the present invention.
Embodiment 2:
A kind of filled with carbon fibers modification PC/PET alloy, its component by mass percent proportioning is: the compound 0.5% of PC 63%, PET 15%, SMA 3%, modified carbon fiber 10%, MBS 8%, antioxidant 1076 and irgasfos 168, pentaerythritol stearate 0.5%, and described modified carbon fiber is that polyacrylonitrile carbon fiber is cut through the short of oxygenant perchloric acid solution process in surface.
Preparation method: (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), short polyacrylonitrile carbon fiber of cutting is added 98% perchloric acid solution at 60 DEG C ~ 90 DEG C temperature, supersound process is after 30 ~ 120 minutes, with deionized water rinsing 3 ~ 5 times, then be placed in vacuum drying oven in 80 DEG C ~ 150 DEG C temperature drying 24 ~ 48h, obtain described modified carbon fiber; (3), taking dry PC and PET by weight ratio adds in high-speed mixer, add compound, the pentaerythritol stearate of SMA, MBS, antioxidant 1076 and irgasfos 168 by weight ratio simultaneously, and add the obtained modified carbon fiber of step (2) by weight ratio, make to stir 5 ~ 15 minutes together, discharging after fully mixing; (4), the compound of step (3) is added in twin screw extruder, at 210 DEG C ~ 260 DEG C temperature after melting mixing extruding pelletization, obtain filled with carbon fibers modification PC/PET alloy of the present invention.
Claims (4)
1. a filled with carbon fibers modification PC/PET alloy, it is characterized in that, its component by mass percent proportioning is: PC 40% ~ 70%, PET 15% ~ 30%, SMA 2% ~ 5%, modified carbon fiber 5% ~ 15%, toughner 4% ~ 10%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%.
2. filled with carbon fibers modification PC/PET alloy according to claim 1, is characterized in that, described modified carbon fiber is that polyacrylonitrile carbon fiber is cut through the short of oxygenant perchloric acid solution process in surface.
3. filled with carbon fibers modification PC/PET alloy according to claim 1, it is characterized in that, described toughner is the one in ethylene-octene copolymer POE, styrene-butadiene-styrene block copolymer SBS, terpolymer EP rubber EPDM, paracril NBR, thermoplastic polyurethane TPU, maleic anhydride grafted ethene-octene copolymer POE-g-MAH, MBS ternary graft copolymer MBS.
4. the preparation method of filled with carbon fibers 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), short polyacrylonitrile carbon fiber of cutting is added 98% perchloric acid solution at 60 DEG C ~ 90 DEG C temperature, supersound process is after 30 ~ 120 minutes, with deionized water rinsing 3 ~ 5 times, then be placed in vacuum drying oven in 80 DEG C ~ 150 DEG C temperature drying 24 ~ 48h, obtain described modified carbon fiber;
(3), taking dry PC and PET by weight ratio adds in high-speed mixer, add SMA, toughner, oxidation inhibitor, lubricant by weight ratio simultaneously, and add the obtained modified carbon fiber of step (2) by weight ratio, make to stir 5 ~ 15 minutes together, discharging after fully mixing;
(4), the compound of step (3) is added in twin screw extruder, at 210 DEG C ~ 260 DEG C temperature after melting mixing extruding pelletization, obtain filled with carbon fibers modification PC/PET alloy of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410672579.6A CN104845316A (en) | 2014-11-22 | 2014-11-22 | Carbon fiber filled and modified PC/PET alloy and preparation method thereof |
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| CN201410672579.6A CN104845316A (en) | 2014-11-22 | 2014-11-22 | Carbon fiber filled and modified PC/PET alloy and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108164953A (en) * | 2016-12-07 | 2018-06-15 | 上海杰事杰新材料(集团)股份有限公司 | Low dielectric polycarbonate composite material of a kind of high heat conduction and preparation method thereof |
| CN108795011A (en) * | 2018-07-05 | 2018-11-13 | 段涛 | A kind of compound 3D printing fluorescent material of polymer ceramic and preparation method thereof |
| CN108795010A (en) * | 2018-07-05 | 2018-11-13 | 段涛 | A kind of compound 3D printing material of polymer ceramic and preparation method thereof |
| CN111719314A (en) * | 2020-06-28 | 2020-09-29 | 黎明职业大学 | Preparation method of modified carbon fiber, antistatic composite material and preparation method thereof |
-
2014
- 2014-11-22 CN CN201410672579.6A patent/CN104845316A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108164953A (en) * | 2016-12-07 | 2018-06-15 | 上海杰事杰新材料(集团)股份有限公司 | Low dielectric polycarbonate composite material of a kind of high heat conduction and preparation method thereof |
| CN108795011A (en) * | 2018-07-05 | 2018-11-13 | 段涛 | A kind of compound 3D printing fluorescent material of polymer ceramic and preparation method thereof |
| CN108795010A (en) * | 2018-07-05 | 2018-11-13 | 段涛 | A kind of compound 3D printing material of polymer ceramic and preparation method thereof |
| CN111719314A (en) * | 2020-06-28 | 2020-09-29 | 黎明职业大学 | Preparation method of modified carbon fiber, antistatic composite material and preparation method thereof |
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