CN105542440A - Carbon fiber composite with high thermal conductivity and preparation method of carbon fiber composite - Google Patents
Carbon fiber composite with high thermal conductivity and preparation method of carbon fiber composite Download PDFInfo
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- CN105542440A CN105542440A CN201610128264.4A CN201610128264A CN105542440A CN 105542440 A CN105542440 A CN 105542440A CN 201610128264 A CN201610128264 A CN 201610128264A CN 105542440 A CN105542440 A CN 105542440A
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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
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
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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
- 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
Abstract
The invention discloses a carbon fiber composite with high thermal conductivity. The carbon fiber composite comprises components in parts by weight as follows: 1-3 parts of carbon fibers, 10-20 parts of polyurethane, 10-20 parts of polyamide resin, 5-6 parts of anhydrous calcium chloride, 1.5-3 parts of modified silicon oxide, 4-8 parts of sodium citrate, 1-5 parts of starch ether and 0.8-1.5 parts of a dispersing agent. The invention further discloses a preparation method of the composite. The composite has a good thermal conduction effect, excellent high-temperature resistance, high strength and high impact resistance, the preparation method is simple, and the cost is low.
Description
Technical field:
The present invention relates to technical field of composite materials, be specifically related to a kind of highly-conductive hot carbon fibre composite.
Background technology:
Carbon fiber is high by carbon content and manufactured chemical's fiber that is not melting in heat treatment process, makes through techniques such as thermally-stabilised oxide treatment, carbonizing treatment and greyings.Carbon fiber has high temperature resistant, rub resistance, conduction, heat conduction and the characteristic such as corrosion-resistant, its profile has significant anisotropy, softness, can be processed into various fabric, and carbon fiber shows very high intensity along fibre axis direction, the proportion of carbon fiber is less, has very high specific tenacity.
The main application of carbon fiber is and resin, metal, ceramic lamp matrix compound, make structured material, requiring high temperature, the occasion that mechanical stability is high, carbon-fibre composite all has stronger advantage, such as in the manufacture field of bicycle rim, bicycle rim requires to have high intensity, traditional volume spoke alloy bicycle rim is heavier, when bearing larger vertical, easy generation tension set, the inner hollow of existing bicycle wheel rim made of carbon fibre, although weight is little, but in bicycle running process, black carbon fiber body absorbs heat, the capacity of heat transmission is also poor, fricative heat causes heat to concentrate, wheel rim can be caused to soften, security is reduced greatly.
Chinese patent (201010136125.9) discloses a kind of novel carbon fiber composite, its using carbon fiber as outsourcing material, polyurethane(s) is as filler, be prepared into carbon fiber composite finished product, this material weight is little, easy to use, thermal diffusivity is good, safety performance is high, but the bonding force of carbon fiber and polyurethane(s) is poor, intensity difference between this material layer.
Summary of the invention:
The object of this invention is to provide a kind of highly-conductive hot carbon fibre composite, its good heat conduction effect resistance to elevated temperatures is excellent, and intensity is large, and shock resistance is strong.
Another object of the present invention is to provide the preparation method of this matrix material.
For achieving the above object, the present invention is by the following technical solutions:
A kind of highly-conductive hot carbon fibre composite, with parts by weight, comprises following component:
Carbon fiber 1-3 part, polyurethane(s) 10-20 part,
Polyamide resin 10-20 part, Calcium Chloride Powder Anhydrous 5-6 part,
Modified silicon oxide 1.5-3 part, Trisodium Citrate 4-8 part,
Starch ethers 1-5 part, dispersion agent 0.8-1.5 part.
Preferred as technique scheme, a kind of highly-conductive hot carbon fibre composite, with parts by weight, comprises following component:
2.5 parts, carbon fiber, polyurethane(s) 20 parts,
Polyamide resin 20 parts, Calcium Chloride Powder Anhydrous 5 parts,
Modified silicon oxide 2 parts, Trisodium Citrate 6 parts,
Starch ethers 3.5 parts, dispersion agent 1 part.
Preferred as technique scheme, described polyamide resin is one or more mixing in polymeric amide-6, polymeric amide-66, polymeric amide-610.
Preferred as technique scheme, the size of described modified silicon oxide is 20-30nm, and its surface is coated by oleic acid unimolecular film.
Preferred as technique scheme, described dispersion agent is one or more mixing in polyoxyethylene sorbitan monooleate, sorbitan oleate, fatty alcohol-polyoxyethylene ether.
Preferred as technique scheme, described solidifying agent is one or more mixing in calcium acetate, calcium stearate, gelatin, acrylic resin.
A preparation method for highly-conductive hot carbon fibre composite, comprises the following steps:
(1) by carbon fiber, modified silicon oxide, Trisodium Citrate, starch ethers, dispersion agent and Calcium Chloride Powder Anhydrous mixing and stirring, ultrasonic vibration 20-50min, continues to add polyurethane(s), polyamide resin, at 100-120 DEG C, be uniformly mixed 1-2h, obtain mixture;
(2) mixture step (1) obtained is by twin screw extruder, and extruding pelletization, dries, obtain highly-conductive hot carbon fibre composite.
The present invention has following beneficial effect:
The present invention adds Calcium Chloride Powder Anhydrous and modified silicon oxide in carbon-fibre composite, it greatly improves the heat dispersion of matrix material, starch ethers has stronger viscosifying power, itself and dispersion agent make the mineral filler good dispersitys such as modified silicon oxide, the matrix material good stability prepared, good processability, excellent shock resistance, resistance to elevated temperatures is good.
Embodiment:
For a better understanding of the present invention, below by embodiment, the present invention is further described, and embodiment, only for explaining the present invention, can not form any restriction to the present invention.
Embodiment
A kind of highly-conductive hot carbon fibre composite, with parts by weight, comprises following component:
1 part, carbon fiber, polyurethane(s) 10 parts,
Polyamide resin 10 parts, Calcium Chloride Powder Anhydrous 5 parts,
Modified silicon oxide 1.5 parts, Trisodium Citrate 4 parts,
Starch ethers 1 part, dispersion agent 0.8 part.
Its preparation method comprises the following steps:
(1) by carbon fiber, modified silicon oxide, Trisodium Citrate, starch ethers, dispersion agent and Calcium Chloride Powder Anhydrous mixing and stirring, ultrasonic vibration 20min, continues to add polyurethane(s), polyamide resin, at 100 DEG C, be uniformly mixed 1h, obtain mixture;
(2) mixture step (1) obtained is by twin screw extruder, and extruding pelletization, dries, obtain highly-conductive hot carbon fibre composite.
Embodiment 2
A kind of highly-conductive hot carbon fibre composite, with parts by weight, comprises following component:
3 parts, carbon fiber, polyurethane(s) 20 parts,
Polyamide resin 20 parts, Calcium Chloride Powder Anhydrous 6 parts,
Modified silicon oxide 3 parts, Trisodium Citrate 8 parts,
Starch ethers 5 parts, dispersion agent 1.5 parts.
Its preparation method comprises the following steps:
(1) by carbon fiber, modified silicon oxide, Trisodium Citrate, starch ethers, dispersion agent and Calcium Chloride Powder Anhydrous mixing and stirring, ultrasonic vibration 50min, continues to add polyurethane(s), polyamide resin, at 120 DEG C, be uniformly mixed 2h, obtain mixture;
(2) mixture step (1) obtained is by twin screw extruder, and extruding pelletization, dries, obtain highly-conductive hot carbon fibre composite.
Embodiment 3
A kind of highly-conductive hot carbon fibre composite, with parts by weight, comprises following component:
1.5 parts, carbon fiber, polyurethane(s) 12 parts,
Polyamide resin 12 parts, Calcium Chloride Powder Anhydrous 5.2 parts,
Modified silicon oxide 1.8 parts, Trisodium Citrate 5 parts,
Starch ethers 2 parts, dispersion agent 1 part.
Its preparation method comprises the following steps:
(1) by carbon fiber, modified silicon oxide, Trisodium Citrate, starch ethers, dispersion agent and Calcium Chloride Powder Anhydrous mixing and stirring, ultrasonic vibration 25min, continues to add polyurethane(s), polyamide resin, at 105 DEG C, be uniformly mixed 1.2h, obtain mixture;
(2) mixture step (1) obtained is by twin screw extruder, and extruding pelletization, dries, obtain highly-conductive hot carbon fibre composite.
Embodiment 4
A kind of highly-conductive hot carbon fibre composite, with parts by weight, comprises following component:
1.8 parts, carbon fiber, polyurethane(s) 14 parts,
Polyamide resin 14 parts, Calcium Chloride Powder Anhydrous 5.4 parts,
Modified silicon oxide 2 parts, Trisodium Citrate 6 parts,
Starch ethers 3 parts, dispersion agent 1.1 parts.
Its preparation method comprises the following steps:
(1) by carbon fiber, modified silicon oxide, Trisodium Citrate, starch ethers, dispersion agent and Calcium Chloride Powder Anhydrous mixing and stirring, ultrasonic vibration 30min, continues to add polyurethane(s), polyamide resin, at 110 DEG C, be uniformly mixed 1.4h, obtain mixture;
(2) mixture step (1) obtained is by twin screw extruder, and extruding pelletization, dries, obtain highly-conductive hot carbon fibre composite.
Embodiment 5
A kind of highly-conductive hot carbon fibre composite, with parts by weight, comprises following component:
2 parts, carbon fiber, polyurethane(s) 16 parts,
Polyamide resin 16 parts, Calcium Chloride Powder Anhydrous 5.6 parts,
Modified silicon oxide 2.2 parts, Trisodium Citrate 7 parts,
Starch ethers 4 parts, dispersion agent 1.2 parts.
Its preparation method comprises the following steps:
(1) by carbon fiber, modified silicon oxide, Trisodium Citrate, starch ethers, dispersion agent and Calcium Chloride Powder Anhydrous mixing and stirring, ultrasonic vibration 35min, continues to add polyurethane(s), polyamide resin, at 115 DEG C, be uniformly mixed 1.6h, obtain mixture;
(2) mixture step (1) obtained is by twin screw extruder, and extruding pelletization, dries, obtain highly-conductive hot carbon fibre composite.
Embodiment 6
A kind of highly-conductive hot carbon fibre composite, with parts by weight, comprises following component:
2.5 parts, carbon fiber, polyurethane(s) 18 parts,
Polyamide resin 18 parts, Calcium Chloride Powder Anhydrous 5.8 parts,
Modified silicon oxide 2.6 parts, Trisodium Citrate 7.5 parts,
Starch ethers 4.5 parts, dispersion agent 1.3 parts.
Its preparation method comprises the following steps:
(1) by carbon fiber, modified silicon oxide, Trisodium Citrate, starch ethers, dispersion agent and Calcium Chloride Powder Anhydrous mixing and stirring, ultrasonic vibration 40min, continues to add polyurethane(s), polyamide resin, at 120 DEG C, be uniformly mixed 1.8h, obtain mixture;
(2) mixture step (1) obtained is by twin screw extruder, and extruding pelletization, dries, obtain highly-conductive hot carbon fibre composite.
Performance test is carried out to highly-conductive hot carbon fibre composite prepared by the present invention below.
(1) mechanical property
Table 1
(2) heat conductivility
Table 2
From table 1, table 2, carbon-fibre composite provided by the invention, has higher heat conductivility, excellent in mechanical performance, can be widely used in bicycle accessories field.
Claims (7)
1. a highly-conductive hot carbon fibre composite, is characterized in that, with parts by weight, comprises following component:
Carbon fiber 1-3 part, polyurethane(s) 10-20 part,
Polyamide resin 10-20 part, Calcium Chloride Powder Anhydrous 5-6 part,
Modified silicon oxide 1.5-3 part, Trisodium Citrate 4-8 part,
Starch ethers 1-5 part, dispersion agent 0.8-1.5 part.
2. a kind of highly-conductive hot carbon fibre composite as claimed in claim 1, is characterized in that, with parts by weight, comprises following component:
2.5 parts, carbon fiber, polyurethane(s) 20 parts,
Polyamide resin 20 parts, Calcium Chloride Powder Anhydrous 5 parts,
Modified silicon oxide 2 parts, Trisodium Citrate 6 parts,
Starch ethers 3.5 parts, dispersion agent 1 part.
3. a kind of highly-conductive hot carbon fibre composite as claimed in claim 1, is characterized in that, described polyamide resin is one or more mixing in polymeric amide-6, polymeric amide-66, polymeric amide-610.
4. a kind of highly-conductive hot carbon fibre composite as claimed in claim 1, is characterized in that, the size of described modified silicon oxide is 20-30nm, and its surface is coated by oleic acid unimolecular film.
5. a kind of highly-conductive hot carbon fibre composite as claimed in claim 1, is characterized in that, described dispersion agent is one or more mixing in polyoxyethylene sorbitan monooleate, sorbitan oleate, fatty alcohol-polyoxyethylene ether.
6. a kind of highly-conductive hot carbon fibre composite as claimed in claim 1, is characterized in that, described solidifying agent is one or more mixing in calcium acetate, calcium stearate, gelatin, acrylic resin.
7. the preparation method of a kind of highly-conductive hot carbon fibre composite as described in as arbitrary in claim 1 to 6, is characterized in that, comprise the following steps:
(1) by carbon fiber, modified silicon oxide, Trisodium Citrate, starch ethers, dispersion agent and Calcium Chloride Powder Anhydrous mixing and stirring, ultrasonic vibration 20-50min, continues to add polyurethane(s), polyamide resin, at 100-120 DEG C, be uniformly mixed 1-2h, obtain mixture;
(2) mixture step (1) obtained is by twin screw extruder, and extruding pelletization, dries, obtain highly-conductive hot carbon fibre composite.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610128264.4A CN105542440A (en) | 2016-03-08 | 2016-03-08 | Carbon fiber composite with high thermal conductivity and preparation method of carbon fiber composite |
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| CN201610128264.4A CN105542440A (en) | 2016-03-08 | 2016-03-08 | Carbon fiber composite with high thermal conductivity and preparation method of carbon fiber composite |
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Application publication date: 20160504 |