CN104845339A - Modified PC/PTT/carbon fiber composite material - Google Patents
Modified PC/PTT/carbon fiber composite material Download PDFInfo
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- CN104845339A CN104845339A CN201410761541.6A CN201410761541A CN104845339A CN 104845339 A CN104845339 A CN 104845339A CN 201410761541 A CN201410761541 A CN 201410761541A CN 104845339 A CN104845339 A CN 104845339A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- 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
- C08K2201/016—Additives defined by their aspect ratio
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- 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
-
- 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 & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention discloses a modified PC/PTT/carbon fiber composite material, which comprises the following components in mass percentage: 30-60% of PC, 20-30% of PTT, 8-15% of modified carbon fibers, 5-10% of flexibilizer, 2-4 % of compatilizer, 0.5-2% of light stabilizer, 0.1-0.5% of anti-oxidant, 0.1-1% of lubricant and 6-12% of fire retardant. According to the invention, the surfaces of the modified carbon fibers are subjected to the modified treatment by means of a titanate coupling agent. The modified carbon fibers are in the form of polyacrylonitrile-based carbon fibers, wherein the average diameter, the average length and the length-to-diameter ratio thereof are respectively 3-30 mum, 100-750 mum and 10-100. According to the invention, the composite material is extremely high in specific strength and specific modulus, good in flame retardancy, excellent in anti-aging performance, good in machining performance, excellent in chemical stability and small in the coefficient of thermal expansion, thus being applicable to the field of high-strength and flame-retardant plastic materials.
Description
Technical field
The present invention relates to technical field of polymer materials, specifically a kind of matrix material of modification PC/PTT/ carbon fiber.
Background technology
Polycarbonate (PC) is because of molecular rigidity and sterically hindered larger, its melt temperature is higher, processing difficulties, be difficult to obtained large thin-wall goods, and goods unrelieved stress is large, easily stress cracking occurs, and PC is to notch sensitive, stability to hydrolysis resistance and solvent resistance bad, these defects make PC be restricted in actual applications.Poly(Trimethylene Terephthalate) (PTT) is the fast new polyester material of a kind of crystallization velocity, be easy to realize high-speed molding, and there is excellent solvent resistance, but the molding shrinkage of its goods is large, there is the shortcomings such as rigidity is not enough under notched Izod impact strength low and high temperature.The deficiencies such as PC chemical resistant properties is poor, forming process is difficult are overcome by blended for PC and PTT, also can make up the defects such as PTT poor heat resistance, impact property are not high, molding shrinkage is large, thus PC/PTT has extensive use in automobile, household electrical appliance, electric, sports goods etc.But because PC is non-crystalline polymer, PTT is semi-crystalline polymer, PC/PTT belongs to typically noncrystalline with crystalline polymer co-mixing system, and interfacial adhesion is bad between the two, and this will cause the problem that the shock strength of PC/PTT is lower, mechanical property is bad.In order to obtain high performance PC/PTT material, often need to add three components, to promote its properties and application effect.Carbon fiber due to the advantages such as density is little, specific tenacity is high, chemical stability is good, forming as the filling modifying agent in polymkeric substance, tool is significantly strengthened, conduction advantage.Thus, good prospect will be had to the research and apply of PC/PTT/ carbon fiber.
Summary of the invention
The object of the present invention is to provide the matrix material of the modification PC/PTT/ carbon fiber that a kind of mechanical property is good, flame retardant resistance is high.
The technical solution adopted for the present invention to solve the technical problems is: a kind of matrix material of modification PC/PTT/ carbon fiber, and its component by mass percent proportioning is: PC 30% ~ 60%, PTT 20% ~ 30%, modified carbon fiber 8% ~ 15%, toughner 5% ~ 10%, compatilizer 2% ~ 4%, photostabilizer 0.5% ~ 2%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%, fire retardant 6% ~ 12%.
Described PC is bisphenol A-type aromatic copolycarbonate.
Described PTT is Poly(Trimethylene Terephthalate).
Described modified carbon fiber be surface through titanate coupling agent modified process and mean diameter 3 ~ 30 μm, mean length is in the PAN-based carbon fiber of 100 ~ 750 μm and length-to-diameter ratio 10 ~ 100.
Described toughner is the one in ethylene-octene copolymer POE, terpolymer EP rubber EPDM, paracril NBR, polyurethane elastomer.
Described compatilizer is acrylonitritrile-styrene resin graft glycidyl methacrylate AS-g-GMA.
Described photostabilizer is ESCALOL 567 or Octabenzone.
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 the one in calcium stearate, silicone powder, pentaerythritol stearate.
Described fire retardant is the one in TDE, melamine cyanurate, dihydroxyphenyl propane-bis-(diphenyl phosphoester), polyphenylene phosphonic acids sulfobenzide ester.
The preparation method of the matrix material of above-mentioned a kind of modification PC/PTT/ carbon fiber, comprises the following steps:
(1), by PC and PTT in forced air circulation baking oven at 110 DEG C ~ 130 DEG C temperature dry 6 ~ 8 hours, fire retardant at 80 DEG C ~ 85 DEG C temperature dry 1 ~ 2 hour, stand-by;
(2), by mean diameter at 3 ~ 30 μm, it is in the salpeter solution of 60% ~ 70% that mean length adds mass concentration at 100 ~ 750 μm with the PAN-based carbon fiber of length-to-diameter ratio 10 ~ 100, impregnation 5 ~ 30 minutes at 75 DEG C ~ 90 DEG C temperature, then vacuum filtration disacidify liquid, and with deionized water rinsing to neutral, weigh after drying, add the titanate coupling agent accounting for gained carbon fiber mass content 0.5wt% ~ 1wt% in PAN-based carbon fiber after the drying again to mix, and stir 10 ~ 60 minutes at 80 DEG C ~ 120 DEG C temperature, then dry, obtain described modified carbon fiber, stand-by,
(3) PTT and the fire retardant that, take drying by weight ratio add in super mixer, and add photostabilizer, oxidation inhibitor, lubricant by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin screw extruder and melt extrudes pelletizing and after drying, namely obtain a kind of PTT composite master batch;
(4), taking dry PC by weight ratio adds in super mixer, add the PTT composite master batch that the obtained modified carbon fiber of step (2) and step (3) obtain again by weight ratio, and add toughner and compatilizer by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds in twin screw extruder, at 210 DEG C ~ 280 DEG C temperature after melting mixing, extruding pelletization, obtains the matrix material of a kind of modification PC/PTT/ carbon fiber of the present invention.
The invention has the beneficial effects as follows, the present invention has high specific tenacity and specific modulus, and good flame resistance, and ageing-resistant performance is excellent, and processibility is good, and chemical-resistant stability is excellent, and thermal expansivity is little, is suitable for plastic applications that is high-strength, high flame retardant.
Embodiment
Technical scheme of the present invention is further illustrated below in conjunction with specific embodiment.
Embodiment 1:
A kind of matrix material of modification PC/PTT/ carbon fiber, its component by mass percent proportioning is: the compound 0.1% of PC 38%, PTT 20%, modified carbon fiber 15%, POE 10%, AS-g-GMA 3%, ESCALOL 567 1.5%, antioxidant 1010 and irgasfos 168, calcium stearate 0.4%, TDE 12%, described modified carbon fiber be surface through titanate coupling agent modified process and mean diameter 3 ~ 30 μm, mean length is in the PAN-based carbon fiber of 100 ~ 750 μm and length-to-diameter ratio 10 ~ 100.
Preparation method: (1), by PC and PTT in forced air circulation baking oven at 110 DEG C ~ 130 DEG C temperature dry 6 ~ 8 hours, TDE at 80 DEG C ~ 85 DEG C temperature dry 1 ~ 2 hour, stand-by, (2), by mean diameter at 3 ~ 30 μm, it is in the salpeter solution of 60% ~ 70% that mean length adds mass concentration at 100 ~ 750 μm with the PAN-based carbon fiber of length-to-diameter ratio 10 ~ 100, impregnation 5 ~ 30 minutes at 75 DEG C ~ 90 DEG C temperature, then vacuum filtration disacidify liquid, and with deionized water rinsing to neutral, weigh after drying, add the titanate coupling agent accounting for gained carbon fiber mass content 0.5wt% ~ 1wt% in PAN-based carbon fiber after the drying again to mix, and stir 10 ~ 60 minutes at 80 DEG C ~ 120 DEG C temperature, then dry, obtain described modified carbon fiber, stand-by, (3) PTT and the TDE that, take drying by weight ratio add in super mixer, and add compound, the calcium stearate of ESCALOL 567, antioxidant 1010 and irgasfos 168 by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin screw extruder and melt extrudes pelletizing and after drying, namely obtain a kind of PTT composite master batch, (4), taking dry PC by weight ratio adds in super mixer, add the PTT composite master batch that the obtained modified carbon fiber of step (2) and step (3) obtain again by weight ratio, and add POE and AS-g-GMA by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds in twin screw extruder, at 210 DEG C ~ 280 DEG C temperature after melting mixing, extruding pelletization, obtains the matrix material of a kind of modification PC/PTT/ carbon fiber of the present invention.
Embodiment 2:
A kind of matrix material of modification PC/PTT/ carbon fiber, its component by mass percent proportioning is: PC 44%, PTT 30%, modified carbon fiber 8%, EPDM 5%, AS-g-GMA 4%, Octabenzone 2%, antioxidant 1010 0.5%, pentaerythritol stearate 0.5%, melamine cyanurate 6%, described modified carbon fiber be surface through titanate coupling agent modified process and mean diameter 3 ~ 30 μm, mean length is in the PAN-based carbon fiber of 100 ~ 750 μm and length-to-diameter ratio 10 ~ 100.
Preparation method: (1), by PC and PTT in forced air circulation baking oven at 110 DEG C ~ 130 DEG C temperature dry 6 ~ 8 hours, melamine cyanurate at 80 DEG C ~ 85 DEG C temperature dry 1 ~ 2 hour, stand-by, (2), by mean diameter at 3 ~ 30 μm, it is in the salpeter solution of 60% ~ 70% that mean length adds mass concentration at 100 ~ 750 μm with the PAN-based carbon fiber of length-to-diameter ratio 10 ~ 100, impregnation 5 ~ 30 minutes at 75 DEG C ~ 90 DEG C temperature, then vacuum filtration disacidify liquid, and with deionized water rinsing to neutral, weigh after drying, add the titanate coupling agent accounting for gained carbon fiber mass content 0.5wt% ~ 1wt% in PAN-based carbon fiber after the drying again to mix, and stir 10 ~ 60 minutes at 80 DEG C ~ 120 DEG C temperature, then dry, obtain described modified carbon fiber, stand-by, (3) PTT and the melamine cyanurate that, take drying by weight ratio add in super mixer, and add Octabenzone, antioxidant 1010, pentaerythritol stearate by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin screw extruder and melt extrudes pelletizing and after drying, namely obtain a kind of PTT composite master batch, (4), taking dry PC by weight ratio adds in super mixer, add the PTT composite master batch that the obtained modified carbon fiber of step (2) and step (3) obtain again by weight ratio, and add EPDM and AS-g-GMA by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds in twin screw extruder, at 210 DEG C ~ 280 DEG C temperature after melting mixing, extruding pelletization, obtains the matrix material of a kind of modification PC/PTT/ carbon fiber of the present invention.
Claims (7)
1. the matrix material of a modification PC/PTT/ carbon fiber, it is characterized in that, its component by mass percent proportioning is: PC 30% ~ 60%, PTT 20% ~ 30%, modified carbon fiber 8% ~ 15%, toughner 5% ~ 10%, compatilizer 2% ~ 4%, photostabilizer 0.5% ~ 2%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.1% ~ 1%, fire retardant 6% ~ 12%.
2. the matrix material of a kind of modification PC/PTT/ carbon fiber according to claim 1, it is characterized in that, described modified carbon fiber be surface through titanate coupling agent modified process and mean diameter 3 ~ 30 μm, mean length is in the PAN-based carbon fiber of 100 ~ 750 μm and length-to-diameter ratio 10 ~ 100.
3. the matrix material of a kind of modification PC/PTT/ carbon fiber according to claim 1, it is characterized in that, described toughner is the one in ethylene-octene copolymer, terpolymer EP rubber, paracril, polyurethane elastomer.
4. the matrix material of a kind of modification PC/PTT/ carbon fiber according to claim 1, it is characterized in that, described compatilizer is acrylonitritrile-styrene resin graft glycidyl methacrylate.
5. the matrix material of a kind of modification PC/PTT/ carbon fiber according to claim 1, it is characterized in that, described photostabilizer is ESCALOL 567 or Octabenzone.
6. the matrix material of a kind of modification PC/PTT/ carbon fiber according to claim 1, it is characterized in that, described fire retardant is the one in TDE, melamine cyanurate, dihydroxyphenyl propane-bis-(diphenyl phosphoester), polyphenylene phosphonic acids sulfobenzide ester.
7. the preparation method of the matrix material of a kind of modification PC/PTT/ carbon fiber according to claim 1, is characterized in that, comprise the following steps:
(1), by PC and PTT in forced air circulation baking oven at 110 DEG C ~ 130 DEG C temperature dry 6 ~ 8 hours, fire retardant at 80 DEG C ~ 85 DEG C temperature dry 1 ~ 2 hour, stand-by;
(2), by mean diameter at 3 ~ 30 μm, it is in the salpeter solution of 60% ~ 70% that mean length adds mass concentration at 100 ~ 750 μm with the PAN-based carbon fiber of length-to-diameter ratio 10 ~ 100, impregnation 5 ~ 30 minutes at 75 DEG C ~ 90 DEG C temperature, then vacuum filtration disacidify liquid, and with deionized water rinsing to neutral, weigh after drying, add the titanate coupling agent accounting for gained carbon fiber mass content 0.5wt% ~ 1wt% in PAN-based carbon fiber after the drying again to mix, and stir 10 ~ 60 minutes at 80 DEG C ~ 120 DEG C temperature, then dry, obtain described modified carbon fiber, stand-by,
(3) PTT and the fire retardant that, take drying by weight ratio add in super mixer, and add photostabilizer, oxidation inhibitor, lubricant by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds twin screw extruder and melt extrudes pelletizing and after drying, namely obtain a kind of PTT composite master batch;
(4), taking dry PC by weight ratio adds in super mixer, add the PTT composite master batch that the obtained modified carbon fiber of step (2) and step (3) obtain again by weight ratio, and add toughner and compatilizer by weight ratio, make to be mixed together 3 ~ 5 minutes, after fully mixing, discharging adds in twin screw extruder, at 210 DEG C ~ 280 DEG C temperature after melting mixing, extruding pelletization, obtains the matrix material of a kind of modification PC/PTT/ carbon fiber of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410761541.6A CN104845339A (en) | 2014-12-13 | 2014-12-13 | Modified PC/PTT/carbon fiber composite material |
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| CN201410761541.6A CN104845339A (en) | 2014-12-13 | 2014-12-13 | Modified PC/PTT/carbon fiber composite material |
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| CN104845339A true CN104845339A (en) | 2015-08-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105237981A (en) * | 2015-10-10 | 2016-01-13 | 中广核俊尔新材料有限公司 | Anti-aging PC/PTT/PP plastic alloy and preparation method thereof |
| CN109401335A (en) * | 2018-11-16 | 2019-03-01 | 宁波优贝车业有限公司 | A kind of light-weight environment-friendly carbon fibre composite of perambulator and preparation method thereof |
| CN111234513A (en) * | 2020-03-24 | 2020-06-05 | 李飞 | High-modulus 3D printing epoxy resin and preparation method thereof |
-
2014
- 2014-12-13 CN CN201410761541.6A patent/CN104845339A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105237981A (en) * | 2015-10-10 | 2016-01-13 | 中广核俊尔新材料有限公司 | Anti-aging PC/PTT/PP plastic alloy and preparation method thereof |
| CN109401335A (en) * | 2018-11-16 | 2019-03-01 | 宁波优贝车业有限公司 | A kind of light-weight environment-friendly carbon fibre composite of perambulator and preparation method thereof |
| CN111234513A (en) * | 2020-03-24 | 2020-06-05 | 李飞 | High-modulus 3D printing epoxy resin and preparation method thereof |
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Application publication date: 20150819 |