CN104419167A - Low-modulus carbon fiber modified PC composite material and preparation method thereof - Google Patents
Low-modulus carbon fiber modified PC composite material and preparation method thereof Download PDFInfo
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- CN104419167A CN104419167A CN201310398183.2A CN201310398183A CN104419167A CN 104419167 A CN104419167 A CN 104419167A CN 201310398183 A CN201310398183 A CN 201310398183A CN 104419167 A CN104419167 A CN 104419167A
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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
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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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Abstract
The invention discloses a low-modulus carbon fiber modified PC composite material and a preparation method thereof. The low-modulus carbon fiber modified PC composite material disclosed by the invention comprises the following components in percentage by mass: 60%-90% of PC resin, 5%-20% of a low-modulus carbon fiber, 5%-15% of a flexibilizer, 2%-4% of a compatilizer, 0.1%-0.5% of an antioxidant, 0.5%-2% of an anti-hydrolysis agent and 0-1.5% of other assistants. Compared with the prior art, the low-modulus carbon fiber modified PC composite material has the beneficial effects that firstly the low-modulus carbon fiber is subjected to oxidation treatment by nitric acid, and then is subjected to coupling agent coating modification treatment; the obtained low-modulus carbon fiber modified PC composite material has a good effect; and the modified PC composite material has high bending strength and excellent overall performance, therefore, the low-modulus carbon fiber modified PC composite material has great potential and a wide application prospect, and can be widely applied to the fields such as automobiles, electronics and chemical engineering.
Description
Technical field
The present invention relates to technical field of polymer materials, specifically a kind of low modulus carbon fiber modifying PC matrix material and preparation method thereof.
Background technology
Polycarbonate (PC) is a kind of thermoplastic engineering plastic of excellent combination property, there is outstanding shock resistance, resistance to creep and good stability of the dimension, higher mechanical strength can be kept in higher temperature range, nontoxic, dielectric properties are excellent, are the engineering plastics that rapid development is the fastest and the size of capacity is maximum in recent years.But PC also exists some defects, as processing characteristics is poor, easy stress cracking, notch shock and low-temperature flexibility difference etc., limit its range of application.Carbon fiber has the characteristic such as high strength, high-modulus, high temperature resistant, corrosion-resistant, antifatigue, creep resistance, conduction, heat transfer, belong to typical new high-tech product, mainly for the preparation of advanced composite material, aerospace, sports goods field, industrial circle, traffic and transport field and civil construction field are widely used in.Carbon fiber can as the toughener strengthening resin composite materials and its mechanical property of improvement, but during carbon fiber-reinforced resin composite materials, require higher interlaminar shear strength (ILSS), and not surface treated carbon fiber surface is inertia, specific surface area is little, edge active carbon atom is few, active functional group content is few, and surface energy is low, and resin wetting property and two-phase interface bad adhesion, the interlaminar shear strength of carbon fiber and resin composite materials is lower, can not meet its result of use.
Summary of the invention
The object of the present invention is to provide a kind of low modulus carbon fiber modifying PC matrix material and preparation method thereof.
The technical solution adopted for the present invention to solve the technical problems is: low modulus carbon fiber modifying PC matrix material, and its component by mass percent proportioning is: PC resin 60% ~ 90%, low modulus carbon fiber 5% ~ 20%, toughner 5% ~ 15%, compatilizer 2% ~ 4%, oxidation inhibitor 0.1% ~ 0.5%, hydrolysis agent 0.5% ~ 2%, other auxiliary agent 0 ~ 1.5%.
Described PC resin is bisphenol A-type aromatic copolycarbonate, and weight-average molecular weight is 20000 ~ 40000g/mol.
Described low modulus carbon fiber be modulus at below 200GPa and surface through the carbon fiber of coupling agent modified process, its modification processing method is: carbon fiber is placed in the salpeter solution that massfraction is 60% ~ 70%, dip treating 5 ~ 40 minutes at 75 DEG C ~ 90 DEG C, then vacuum filtration disacidify liquid, and with deionized water rinsing to neutral, add the process of titanate coupling agents coating after drying, then 80 DEG C ~ 150 DEG C oven dry, obtain the surperficial carbon fiber through coupling agent modified process.
Described toughner is Maleic Anhydride Grafted Ethylene Butyl Acrylate Copolymer (EBA-g-MAH).
Described compatilizer is styrene-grafted copolymer-maleic anhydride (SMA).
Described oxidation inhibitor is Hinered phenols antioxidant 1010 and the compound of phosphite ester kind antioxidant 168 in quality 1:1 ratio.
Described hydrolysis agent is dihydroxyphenyl propane bisglycidyl ether.
Other described auxiliary agent is one or more in lubricant, photostabilizer, look mother, wherein, the preferred pentaerythritol stearate of lubricant (PETS), photostabilizer preferred mass is than the compound hindered amine as light stabilizer of HS-944 and the HS-622 of 1:1, and look female preferably carbonarius is female.
The preparation method of above-mentioned low modulus carbon fiber modifying PC matrix material, comprises the following steps:
(1), by PC resin in blast drier at 110 DEG C ~ 130 DEG C temperature dry 3 ~ 4 hours, stand-by;
(2), low modulus carbon fiber surface modification process: carbon fiber is placed in the salpeter solution that massfraction is 60% ~ 70%, dip treating 5 ~ 40 minutes at 75 DEG C ~ 90 DEG C, then vacuum filtration disacidify liquid, and with deionized water rinsing to neutral, add the process of titanate coupling agents coating after drying, then 80 DEG C ~ 150 DEG C oven dry, the carbon fiber of surface modification treatment is obtained, stand-by;
(3) carbon fiber of the surface modification treatment that dry PC resin and step (2) obtain, is taken by weight ratio, add high-speed mixer, stir 2 ~ 15 minutes, then add take by weight ratio toughner, compatilizer, oxidation inhibitor, hydrolysis agent, other auxiliary agent, continue mixing 5 ~ 30 minutes, make fully to mix rear discharging;
(4), the compound of step (3) is added in twin screw extruder, extrudes through melting mixing at 240 DEG C ~ 260 DEG C, cooling granulation, get product.
The invention has the beneficial effects as follows, compared with prior art, the present invention adopts first to the process of low modulus carbon fiber nitric acid oxidation, carry out the coating modified process of coupling agent again, the low modulus carbon fiber modifying PC matrix material obtained, has good effect, makes the PC matrix material of its modification have high bending strength and Good All-around Property, thus there is huge potentiality and application prospect widely, the fields such as automobile, electronics, chemical industry can be widely used in.
Embodiment
Technical scheme of the present invention is further illustrated below in conjunction with specific embodiment.
Embodiment 1:
A kind of low modulus carbon fiber modifying PC matrix material, its component in mass percent proportioning is: PC resin 70%, low modulus carbon fiber 15%, Maleic Anhydride Grafted Ethylene Butyl Acrylate Copolymer (EBA-g-MAH) 10%, styrene-grafted copolymer-maleic anhydride (SMA) 3%, Hinered phenols antioxidant 1010 and phosphite ester kind antioxidant 168 are in the compound hindered amine as light stabilizer 0.6% of HS-944 and the HS-622 of the compound 0.4% of quality 1:1 ratio, dihydroxyphenyl propane bisglycidyl ether 1%, mass ratio 1:1.Wherein, described PC resin is bisphenol A-type aromatic copolycarbonate, and weight-average molecular weight is 20000 ~ 40000g/mol.Described low modulus carbon fiber be modulus at below 200GPa and surface through the carbon fiber of coupling agent modified process, its modification processing method is: carbon fiber is placed in the salpeter solution that massfraction is 60% ~ 70%, dip treating 5 ~ 40 minutes at 75 DEG C ~ 90 DEG C, then vacuum filtration disacidify liquid, and with deionized water rinsing to neutral, add the process of titanate coupling agents coating after drying, then 80 DEG C ~ 150 DEG C oven dry, obtain the surperficial carbon fiber through coupling agent modified process.
Preparation method: (1), by PC resin in blast drier at 110 DEG C ~ 130 DEG C temperature dry 3 ~ 4 hours, stand-by, (2), low modulus carbon fiber surface modification process: carbon fiber is placed in the salpeter solution that massfraction is 60% ~ 70%, dip treating 5 ~ 40 minutes at 75 DEG C ~ 90 DEG C, then vacuum filtration disacidify liquid, and with deionized water rinsing to neutral, add the process of titanate coupling agents coating after drying, then 80 DEG C ~ 150 DEG C oven dry, the carbon fiber of surface modification treatment is obtained, stand-by, (3), take the carbon fiber of the surface modification treatment that dry PC resin and step (2) obtain by weight ratio, add high-speed mixer, stir 2 ~ 15 minutes, then the Maleic Anhydride Grafted Ethylene Butyl Acrylate Copolymer (EBA-g-MAH) taken by weight ratio is added, styrene-grafted copolymer-maleic anhydride (SMA), Hinered phenols antioxidant 1010 and the compound of phosphite ester kind antioxidant 168 in quality 1:1 ratio, dihydroxyphenyl propane bisglycidyl ether, the compound hindered amine as light stabilizer of HS-944 and the HS-622 of mass ratio 1:1, continue mixing 5 ~ 30 minutes, make fully to mix rear discharging, (4), the compound of step (3) is added in twin screw extruder, extrudes through melting mixing at 240 DEG C ~ 260 DEG C, cooling granulation, get product.
Embodiment 2:
A kind of low modulus carbon fiber modifying PC matrix material, its component in mass percent proportioning is: PC resin 80%, low modulus carbon fiber 10%, Maleic Anhydride Grafted Ethylene Butyl Acrylate Copolymer (EBA-g-MAH) 5%, styrene-grafted copolymer-maleic anhydride (SMA) 3%, Hinered phenols antioxidant 1010 and phosphite ester kind antioxidant 168 are in the compound hindered amine as light stabilizer 0.5% of HS-944 and the HS-622 of the compound 0.2% of quality 1:1 ratio, dihydroxyphenyl propane bisglycidyl ether 0.8%, pentaerythritol stearate (PETS) 0.5%, mass ratio 1:1.Wherein, described PC resin is bisphenol A-type aromatic copolycarbonate, and weight-average molecular weight is 20000 ~ 40000g/mol.Described low modulus carbon fiber be modulus at below 200GPa and surface through the carbon fiber of coupling agent modified process, its modification processing method is: carbon fiber is placed in the salpeter solution that massfraction is 60% ~ 70%, dip treating 5 ~ 40 minutes at 75 DEG C ~ 90 DEG C, then vacuum filtration disacidify liquid, and with deionized water rinsing to neutral, add the process of titanate coupling agents coating after drying, then 80 DEG C ~ 150 DEG C oven dry, obtain the surperficial carbon fiber through coupling agent modified process.
Preparation method: (1), by PC resin in blast drier at 110 DEG C ~ 130 DEG C temperature dry 3 ~ 4 hours, stand-by, (2), low modulus carbon fiber surface modification process: carbon fiber is placed in the salpeter solution that massfraction is 60% ~ 70%, dip treating 5 ~ 40 minutes at 75 DEG C ~ 90 DEG C, then vacuum filtration disacidify liquid, and with deionized water rinsing to neutral, add the process of titanate coupling agents coating after drying, then 80 DEG C ~ 150 DEG C oven dry, the carbon fiber of surface modification treatment is obtained, stand-by, (3), take the carbon fiber of the surface modification treatment that dry PC resin and step (2) obtain by weight ratio, add high-speed mixer, stir 2 ~ 15 minutes, then the Maleic Anhydride Grafted Ethylene Butyl Acrylate Copolymer (EBA-g-MAH) taken by weight ratio is added, styrene-grafted copolymer-maleic anhydride (SMA), Hinered phenols antioxidant 1010 and the compound of phosphite ester kind antioxidant 168 in quality 1:1 ratio, dihydroxyphenyl propane bisglycidyl ether, pentaerythritol stearate (PETS), the compound hindered amine as light stabilizer of HS-944 and the HS-622 of mass ratio 1:1, continue mixing 5 ~ 30 minutes, make fully to mix rear discharging, (4), the compound of step (3) is added in twin screw extruder, extrudes through melting mixing at 240 DEG C ~ 260 DEG C, cooling granulation, get product.
Claims (9)
1. a low modulus carbon fiber modifying PC matrix material, it is characterized in that, its component by mass percent proportioning is: PC resin 60% ~ 90%, low modulus carbon fiber 5% ~ 20%, toughner 5% ~ 15%, compatilizer 2% ~ 4%, oxidation inhibitor 0.1% ~ 0.5%, hydrolysis agent 0.5% ~ 2%, other auxiliary agent 0 ~ 1.5%.
2. low modulus carbon fiber modifying PC matrix material according to claim 1, it is characterized in that, described PC resin is bisphenol A-type aromatic copolycarbonate, and weight-average molecular weight is 20000 ~ 40000g/mol.
3. low modulus carbon fiber modifying PC matrix material according to claim 1, it is characterized in that, described low modulus carbon fiber is that modulus is at below 200GPa, and surface is through the carbon fiber of coupling agent modified process, its modification processing method is: carbon fiber is placed in the salpeter solution that massfraction is 60% ~ 70%, dip treating 5 ~ 40 minutes at 75 DEG C ~ 90 DEG C, then vacuum filtration disacidify liquid, and with deionized water rinsing to neutral, add the process of titanate coupling agents coating after drying, then 80 DEG C ~ 150 DEG C oven dry, obtain the surperficial carbon fiber through coupling agent modified process.
4. low modulus carbon fiber modifying PC matrix material according to claim 1, is characterized in that, described toughner is Maleic Anhydride Grafted Ethylene Butyl Acrylate Copolymer (EBA-g-MAH).
5. low modulus carbon fiber modifying PC matrix material according to claim 1, is characterized in that, described compatilizer is styrene-grafted copolymer-maleic anhydride (SMA).
6. low modulus carbon fiber modifying PC matrix material 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 1:1 ratio.
7. low modulus carbon fiber modifying PC matrix material according to claim 1, it is characterized in that, described hydrolysis agent is dihydroxyphenyl propane bisglycidyl ether.
8. low modulus carbon fiber modifying PC matrix material according to claim 1, it is characterized in that, other described auxiliary agent is one or more in lubricant, photostabilizer, look mother, wherein, the preferred pentaerythritol stearate of lubricant (PETS), photostabilizer preferred mass is than the compound hindered amine as light stabilizer of HS-944 and the HS-622 of 1:1, and look female preferably carbonarius is female.
9. the preparation method of low modulus carbon fiber modifying PC matrix material according to claim 1, is characterized in that, comprise the following steps:
(1), by PC resin in blast drier at 110 DEG C ~ 130 DEG C temperature dry 3 ~ 4 hours, stand-by;
(2), low modulus carbon fiber surface modification process: carbon fiber is placed in the salpeter solution that massfraction is 60% ~ 70%, dip treating 5 ~ 40 minutes at 75 DEG C ~ 90 DEG C, then vacuum filtration disacidify liquid, and with deionized water rinsing to neutral, add the process of titanate coupling agents coating after drying, then 80 DEG C ~ 150 DEG C oven dry, the carbon fiber of surface modification treatment is obtained, stand-by;
(3) carbon fiber of the surface modification treatment that dry PC resin and step (2) obtain, is taken by weight ratio, add high-speed mixer, stir 2 ~ 15 minutes, then add take by weight ratio toughner, compatilizer, oxidation inhibitor, hydrolysis agent, other auxiliary agent, continue mixing 5 ~ 30 minutes, make fully to mix rear discharging;
(4), the compound of step (3) is added in twin screw extruder, extrudes through melting mixing at 240 DEG C ~ 260 DEG C, cooling granulation, get product.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105348767A (en) * | 2015-12-13 | 2016-02-24 | 宋介珍 | Preparing method for modified polycarbonate used for drinking bucket |
| CN106084725A (en) * | 2016-08-16 | 2016-11-09 | 苏州市云林电子有限公司 | A kind of crack resistence modified polycarbonate rubber |
| CN109438956A (en) * | 2018-11-23 | 2019-03-08 | 安徽旭升新材料有限公司 | High rigidity is modified PC and carbon fibre composite and preparation method thereof |
| CN109486151A (en) * | 2018-11-08 | 2019-03-19 | 安徽旭升新材料有限公司 | A kind of preparation method of modified PC and carbon fibre composite |
| CN109575555A (en) * | 2018-11-08 | 2019-04-05 | 安徽旭升新材料有限公司 | A kind of modified PC and carbon fibre composite |
| CN116278245A (en) * | 2023-05-17 | 2023-06-23 | 河北巅峰体育设施有限公司 | Prefabricated rubber runway coiled material and preparation method thereof |
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2013
- 2013-09-05 CN CN201310398183.2A patent/CN104419167A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105348767A (en) * | 2015-12-13 | 2016-02-24 | 宋介珍 | Preparing method for modified polycarbonate used for drinking bucket |
| CN106084725A (en) * | 2016-08-16 | 2016-11-09 | 苏州市云林电子有限公司 | A kind of crack resistence modified polycarbonate rubber |
| CN109486151A (en) * | 2018-11-08 | 2019-03-19 | 安徽旭升新材料有限公司 | A kind of preparation method of modified PC and carbon fibre composite |
| CN109575555A (en) * | 2018-11-08 | 2019-04-05 | 安徽旭升新材料有限公司 | A kind of modified PC and carbon fibre composite |
| CN109438956A (en) * | 2018-11-23 | 2019-03-08 | 安徽旭升新材料有限公司 | High rigidity is modified PC and carbon fibre composite and preparation method thereof |
| CN116278245A (en) * | 2023-05-17 | 2023-06-23 | 河北巅峰体育设施有限公司 | Prefabricated rubber runway coiled material and preparation method thereof |
| CN116278245B (en) * | 2023-05-17 | 2023-08-04 | 河北巅峰体育设施有限公司 | Prefabricated rubber runway coiled material and preparation method thereof |
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