CN108690347A - A kind of carbon fiber reinforced nylon composite material and preparation method - Google Patents
A kind of carbon fiber reinforced nylon composite material and preparation method Download PDFInfo
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- CN108690347A CN108690347A CN201710229515.2A CN201710229515A CN108690347A CN 108690347 A CN108690347 A CN 108690347A CN 201710229515 A CN201710229515 A CN 201710229515A CN 108690347 A CN108690347 A CN 108690347A
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- carbon fiber
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/042—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with carbon fibres
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
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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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- 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
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Abstract
The invention discloses a kind of carbon fiber reinforced nylon composite material and preparation methods.The carbon fiber reinforced nylon composite material is calculated by weight percentage, including following component:Nylon resin 50% ~ 75%;Auxiliary agent 0% ~ 10%;Carbon fiber 20% ~ 40%;In carbon fiber reinforced nylon composite material, carbon fiber retains length and its distribution is calculated by weight percentage, including following component:Less than 1200um 15% ~ 25%;1200um~1800um 65%~75%;More than 1800um 5% ~ 10%.With excellent shock resistance while the carbon fiber reinforced nylon composite material rigidity reinforced being prepared, reach rigidity-toughness balanced, increases the applicability and practicability of nylon material.
Description
Technical field
The present invention relates to thermoplastic composite technical field more particularly to a kind of carbon fiber reinforced nylon composite materials.
Background technology
Carbon fiber(Carbon fiber, abbreviation CF), it is a kind of high intensity 95% or more of phosphorus content, high modulus fibre
New fiber materials.It is piled up along fiber axial direction by organic fibers such as flake graphites, through carbonization and stone
Microcrystalline graphite material obtained from blackization processing.Carbon fiber " soft outside but hard inside ", quality is lighter than metallic aluminium, but intensity is higher than steel
Iron, and there is corrosion-resistant, high-modulus characteristic, all it is important materials in defence and military and civilian aspect.It not only has carbon
The intrinsic intrinsic property of material, and have both the soft machinability of textile fabric, it is reinforcing fiber of new generation.
Fibre reinforced thermoplasticity (resin base) composite material (LCFT) has light weight, performance height, production efficiency high, easy
The outstanding features such as recycling, recyclable reuse, compared with thermosetting property (resin base) composite material (LCFP), recuperability is excellent
Gesture is apparent, while the techniques such as efficient injection molding, molding can be used and manufacture product.Carbon fiber itself is the material of high-module high-strength,
The rigidity that can greatly improve material is added in it, but the increase of material stiffness causes the shock resistance of material to decline, Bu Nengda
To rigidity-toughness balanced, conventional means are the various auxiliary agents of increase, it is well known that, dimensional stability can be influenced and add again by increasing auxiliary agent
Work mobility.Therefore, it is badly in need of a kind of technique solution, with excellent impact resistance while making composite material rigidity reinforced
Can, reach rigidity-toughness balanced, increases the applicability and practicability of material.
Invention content
The purpose of the present invention is overcoming the shortcomings of the prior art, a kind of carbon fiber reinforced nylon composite material is provided,
Reach rigidity-toughness balanced.
Another object of the present invention is to provide a kind of preparation methods of carbon fiber reinforced nylon composite material.
The above-mentioned purpose of the present invention is achieved by the following technical programs:
A kind of carbon fiber reinforced nylon composite material, is calculated by weight percentage, including following component:
Nylon resin 50% ~ 75%;
Auxiliary agent 0% ~ 10%;
Carbon fiber 20% ~ 40%;
Wherein, carbon fiber retains length in carbon fiber reinforced nylon composite material and its distribution is calculated by weight percentage, including such as
Lower component:
Less than 1200um 15% ~ 25%;
1200um~1800um 65%~75%;
More than 1800um 5% ~ 10%.
Inventor has found by many experiments, and carbon fiber is adjusted in carbon fiber reinforced nylon composite material and retains length and contains
Amount distribution realizes that carbon fiber retains length and its distribution is calculated by weight percentage, including following component:Less than 1200um 15% ~
25%;1200um~1800um 65%~75%;More than 1800um 5% ~ 10%.Thus obtained carbon fiber reinforced nylon composite material
With excellent toughness while rigidity reinforced, reach rigidity-toughness balanced, increases the applicability and practicability of material.
Preferably, carbon fiber retains length and its distribution is calculated by weight percentage, including following component:
Less than 1200um 15% ~ 20%;
1200um~1800um 70%~75%;
More than 1800um 7% ~ 10%.
The nylon resin is one or more in PA6, PA66, PA610.
Preferably, the nylon resin is PA6.
Preferably, the PA6 number-average molecular weights are 13000 ~ 23000.
The auxiliary agent is prior art usual auxiliaries, mainly in antioxidant, lubricant, compatilizer, nucleating agent, weather resisting agent
It is one or more, such as antioxidant 1010, Nauguard 445, lubricant TAF, paraffin, compatilizer Bondyram1001, nucleation
Agent talcum powder, mica, weather resisting agent hindered amines etc..
The carbon fiber diameter is 5um ~ 7um.
The preparation method of the carbon fiber reinforced nylon composite material includes the following steps:
S1. nylon resin and auxiliary agent are uniformly mixed, are added twin-screw extrude, immersion system is connected at extruder die head,
Extruder temperature is 200 ~ 260 DEG C, and die head temperature is 260 ~ 280 DEG C;
S2. it is plasticized by double screw extruder, high temperature mixture melt conveying to die head, carbon fiber is conveyed by draft gear
To die head, dipping is forced;
S3. the carbon fiber traction being sufficiently impregnated pulls out, cooling and shaping, pelletizing, 6 ~ 25mm of particle length;
S4. above-mentioned particle is put into injection molding machine, setting molding proces s parameters prepare carbon fiber reinforced nylon composite material;
The molding proces s parameters of the step S4 include:80 ~ 90MPa of injection pressure, 30 ~ 40MPa of back-pressure, screw speed
30rpm ~ 40rpm, injection speed 60mm/s ~ 70mm/s, 280 DEG C ~ 290 DEG C of injection temperature.
Carbon fiber retains length and the test method of distribution:The product of 2g carbon fiber reinforced nylon composite materials is existed
600 DEG C of concentrated sulfuric acids and hydrofluoric acid are adjusted by hydrogen peroxide titration to neutrality, the burning solution liquid of obtained clear, liquid after burning solution
It being cooled to after room temperature and 2ml is pipetted in clean sheet glass from bottom by pipette, drop is paved into the water layer that thickness is 2mm, and two
Dimension image instrument amplification factor be under 200 times under conditions of take pictures, according to the carbon fiber form of photo with statistical
Method calculates carbon fiber and retains length and distribution.
Compared with prior art, the present invention has the advantages that:
Carbon fiber retains length and its distribution percentage by weight in a kind of carbon fiber reinforced nylon composite material provided by the invention
Than calculation, including following component:Less than 1200um 15% ~ 25%;1200um~1800um 65%~75%;More than 1800um 5% ~ 10%.
The final high rigidity that not only ensure that nylon material, also significantly improves the impact resistance of nylon material, largely carries
The high applicability and practicability of material.
Specific implementation mode
Explanation is further expalined to the present invention with reference to specific embodiment, the description thereof is more specific and detailed, but
It cannot be construed as a limitation to the scope of the present invention, as long as the form using equivalent substitution or equivalent transformation is obtained
The technical solution obtained, should all be included within the protection domain of the claims in the present invention.
Mechanic property test method:
Tensile strength:ISO 527;
Bending strength:ISO 178;
Izod notched impact strength:ISO 180/1A.
The raw material used in the present invention:
Nylon resin:PA6,1010C2 Mitsubishi, number-average molecular weight 22000;
Antioxidant:Nauguard 445;
Lubricant:Photochemistry auxiliary agent Co., Ltd of the Suzhou TAF Xingtai state;
Carbon fiber:T700, a diameter of 7um;
Embodiment 1 ~ 8 and comparative example 1 ~ 10
The preparation of carbon fiber reinforced nylon composite material:
S1. nylon resin and auxiliary agent are uniformly mixed, are added twin-screw extrude, immersion system is connected at extruder die head,
Extruder temperature is 200 ~ 260 DEG C, and die head temperature is 260 ~ 280 DEG C;
S2. it is plasticized by double screw extruder, high temperature mixture melt conveying to die head, carbon fiber is conveyed by draft gear
To die head, dipping is forced;
S3. the carbon fiber traction being sufficiently impregnated pulls out, cooling and shaping, pelletizing, 6 ~ 25mm of particle length;
S4. above-mentioned particle is put into injection molding machine, setting molding proces s parameters prepare carbon fiber reinforced nylon composite material;It is molded work
Skill parameter is as shown in table 1.
The specific formula (weight percent) and its test performance result of 1 embodiment 1 ~ 8 of table and comparative example 1 ~ 10
Continued 1
It can see by the data comparison of table 1, embodiment 1 ~ 8 has obtained carbon fiber in product and retained length and distribution by weight
Percentage is calculated, including is less than 1200um 15% ~ 25%;1200um~1800um 65%~75%;More than 1800um 5% ~ 10%.Comparison
Carbon fiber retains length in the product that example 1 ~ 10 obtains and distribution does not meet said components distribution situation.Carbon fiber prepared by embodiment
Dimension enhances nylon composite materials, not only the apparent impact resistance for improving material, but also also has to stretch bending intensity
Certain raising.The impact resistance that ensure that material in the case where improving the rigidity of material improves being applicable in for material
Property and practicability.
Claims (9)
1. a kind of carbon fiber reinforced nylon composite material, which is characterized in that the carbon fiber reinforced nylon composite material is by weight
Percentage is calculated, including following component:
Nylon resin 50% ~ 75%;
Auxiliary agent 0% ~ 10%;
Carbon fiber 20% ~ 40%;
Wherein, in fibre reinforced PP composite material, carbon fiber retains length and its distribution is calculated by weight percentage, including
Following component:
Less than 1200um 15% ~ 25%;
1200um~1800um 65%~75%;
More than 1800um 5% ~ 10%.
2. carbon fiber reinforced nylon composite material according to claim 1, which is characterized in that carbon fiber retains length and its divides
Cloth is calculated by weight percentage, including following component:
Less than 1200um 15% ~ 20%;
1200um~1800um 70%~75%;
More than 1800um 7% ~ 10%.
3. carbon fiber reinforced nylon composite material according to claim 1, which is characterized in that the nylon resin be PA6,
It is one or more in PA66, PA610.
4. carbon fiber reinforced nylon composite material according to claim 3, which is characterized in that the nylon resin is PA6.
5. carbon fiber reinforced nylon composite material according to claim 4, which is characterized in that the PA6 number-average molecular weights are
13000~23000。
6. carbon fiber reinforced nylon composite material according to claim 1, which is characterized in that the auxiliary agent is antioxidant, profit
It is one or more in lubrication prescription, compatilizer, nucleating agent, weather resisting agent.
7. carbon fiber reinforced nylon composite material according to claim 1, which is characterized in that the carbon fiber diameter be 5um ~
7um。
8. the preparation method of carbon fiber reinforced nylon composite material described in claim 1, which is characterized in that include the following steps:
S1. nylon resin and auxiliary agent are uniformly mixed, are added twin-screw extrude, immersion system is connected at extruder die head,
Extruder temperature is 200 ~ 260 DEG C, and die head temperature is 260 ~ 280 DEG C;
S2. it is plasticized by double screw extruder, high temperature mixture melt conveying to die head, carbon fiber is conveyed by draft gear
To die head, dipping is forced;
S3. the carbon fiber traction being sufficiently impregnated pulls out, cooling and shaping, pelletizing, 6 ~ 25mm of particle length;
S4. above-mentioned particle is put into injection molding machine, setting molding proces s parameters prepare carbon fiber reinforced nylon composite material;
The molding proces s parameters of the step S4 include:80 ~ 90MPa of injection pressure, 30 ~ 40MPa of back-pressure, screw speed
30rpm ~ 40rpm, injection speed 60mm/s ~ 70mm/s, 280 DEG C ~ 290 DEG C of injection temperature.
9. carbon fiber reinforced nylon composite material according to claim 1, which is characterized in that the carbon fiber retain length and
Its test method being distributed:By the product of 2g carbon fiber reinforced nylon composite materials after 600 DEG C of concentrated sulfuric acids and hydrofluoric acid burn solution
It is adjusted to neutrality by hydrogen peroxide titration, obtains the burning solution liquid of clear, liquid is cooled to after room temperature through pipette the bottom of from
Portion pipettes 2ml in clean sheet glass, and drop is paved into the water layer that thickness is 2mm, and secondary element image instrument amplification multiple is 200 times
It takes pictures, carbon fiber reservation length is calculated according to the statistical method of the carbon fiber form of photo and divides under conditions of lower
Cloth.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229515.2A CN108690347B (en) | 2017-04-10 | 2017-04-10 | Carbon fiber reinforced nylon composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229515.2A CN108690347B (en) | 2017-04-10 | 2017-04-10 | Carbon fiber reinforced nylon composite material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108690347A true CN108690347A (en) | 2018-10-23 |
| CN108690347B CN108690347B (en) | 2022-07-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852045A (en) * | 2018-12-24 | 2019-06-07 | 余姚中国塑料城塑料研究院 | A kind of microporous foam long carbon fiber enhancing PA11 material and preparation method thereof |
| CN110760183A (en) * | 2019-09-16 | 2020-02-07 | 安徽旭升新材料有限公司 | Preparation method of PA66 carbon fiber composite material |
| CN113968059A (en) * | 2021-12-04 | 2022-01-25 | 宁波瑞成包装材料有限公司 | Production method of toughened BOPA film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6066395A (en) * | 1997-05-23 | 2000-05-23 | Toray Industries, Inc. | Chopped carbon fibers and a production process there of |
| US20030055154A1 (en) * | 2001-03-28 | 2003-03-20 | Ube Industries, Ltd. | Conductive resin composition and process for producing the same |
| CN105131547A (en) * | 2015-08-28 | 2015-12-09 | 金发科技股份有限公司 | Polycarbonate composition and preparing method thereof |
-
2017
- 2017-04-10 CN CN201710229515.2A patent/CN108690347B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6066395A (en) * | 1997-05-23 | 2000-05-23 | Toray Industries, Inc. | Chopped carbon fibers and a production process there of |
| US20030055154A1 (en) * | 2001-03-28 | 2003-03-20 | Ube Industries, Ltd. | Conductive resin composition and process for producing the same |
| CN105131547A (en) * | 2015-08-28 | 2015-12-09 | 金发科技股份有限公司 | Polycarbonate composition and preparing method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852045A (en) * | 2018-12-24 | 2019-06-07 | 余姚中国塑料城塑料研究院 | A kind of microporous foam long carbon fiber enhancing PA11 material and preparation method thereof |
| CN109852045B (en) * | 2018-12-24 | 2022-03-25 | 余姚中国塑料城塑料研究院 | Microporous foamed long carbon fiber reinforced PA11 material and preparation method thereof |
| CN110760183A (en) * | 2019-09-16 | 2020-02-07 | 安徽旭升新材料有限公司 | Preparation method of PA66 carbon fiber composite material |
| CN113968059A (en) * | 2021-12-04 | 2022-01-25 | 宁波瑞成包装材料有限公司 | Production method of toughened BOPA film |
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| CN108690347B (en) | 2022-07-12 |
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