CN109054369A - The method of modifying of PA6 base-material in composite thermoplastic carbon fiber material - Google Patents
The method of modifying of PA6 base-material in composite thermoplastic carbon fiber material Download PDFInfo
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- CN109054369A CN109054369A CN201810875123.8A CN201810875123A CN109054369A CN 109054369 A CN109054369 A CN 109054369A CN 201810875123 A CN201810875123 A CN 201810875123A CN 109054369 A CN109054369 A CN 109054369A
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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
- 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
- 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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- 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
- 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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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of composite thermoplastic carbon fiber material, in particular to the method for modifying of PA6 base-material in a kind of composite thermoplastic carbon fiber material.Technical solution are as follows: the method for modifying of PA6 base-material in a kind of composite thermoplastic carbon fiber material, steps are as follows: the more complete molding PA6 base-material of a, screening；B, will be completed in step a screening PA6 base-material in add just, pay antioxidant, heat stabilizer, ultraviolet absorbing agent, wherein PA6 base-material be 85% -95%, just, pay antioxidant 0.1% -0.5%, heat stabilizer 0.1% -2%, ultraviolet absorbing agent 1% -3%, fire retardant 1% -8%, toughener 2% -5%；C, by the PA6 base-material in step b and the dedicated Granulation Equipments of each component investment, it is promoted to stir and heat mixing.By adopting the above technical scheme, the method for modifying of PA6 base-material in the stable composite thermoplastic carbon fiber material of a kind of low molecular weight distribution, good fluidity, high melt index, associativity is provided.
Description
Technical field
The present invention relates to a kind of composite thermoplastic carbon fiber material, in particular in a kind of composite thermoplastic carbon fiber material
The method of modifying of PA6 base-material.
Background technique
Carbon fibre composite is an important branch in composite material, since it has excellent performance, this material in recent years
The purposes and yield of material gradually expand.For a long time, carbon fibre reinforced composite is counted as a kind of material of valuableness, price
About ten times of glass fibre reinforced composion are served only for the sophisticated technologies industry such as military project, aerospace.In recent years, carbon fiber is every
Year is increased with 50% or more speed, wherein there are two the development that key factor has pushed carbon fibre composite, first is that above-mentioned
Deepening continuously for material understanding, makes its performance be gradually improved, can reach the performance that many other materials hardly match, it is promoted to make
Dosage constantly rises.Second is that the continuous reduction of cost effectiveness, this be mainly attributed to Industry of Carbon Fiber can provide the fiber of high quality with
And fiber/matrix melting technology is constantly progressive.The large-scale production of carbon fiber, makes its Quality advance and price declines, and adds
The progress of work technology make again be added composite material in carbon fiber dimensional ratio constantly rise, at present up to volume ratio 60% with
On.
Carbon fibre composite development is like a raging fire, breaks with tremendous force.Thermosetting is mostly applied in space flight and aviation and national defense industry
Property composite material, however same with thermosetting compound material is at high cost, and molding cycle is long, and greatest problem is difficult to recycle, and pollutes environment
Consequence is serious.By being dedicated to base-material research and development for many years, successively select PC, PEEK, PPS, PI, PA, PET, PP as the examination of base-material
It tests.From the experiment, it was found that PA is a kind of particularly important thermoplastic web.Though PA itself is the engineering plastics haveing excellent performance, inhale
Moist big, product size stability is poor, and intensity and hardness are also nothing like metal, in order to overcome these disadvantages, using carbon fiber
Or the fiber of other kinds is enhanced to improve its performance.It has developed rapidly in recent years with fibre reinforced PA material, because of PA
It is all the material that engineering plastics field is had excellent performance with carbon fiber, the compound synthesis of the two embodies respective advantage, intensity and just
Property it is more much higher than non-reinforced nylon, creep is small, and dimensional accuracy is good, and thermal stability significantly improves, and wear-resisting, damping and amortization is excellent, with
Fiberglass reinforced, which is compared, better performance.
But at present with regard to PA be base-material carbon fibre composite during the preparation process, be the carbon made to the modification of PA base-material
Step more crucial in fibrous composite.The method of modifying that tradition is crossed keeps the molecular weight distribution of PA base-material wider, Wu Fayu
It is lower that carbon fiber implements adequately dipping, poor fluidity, melt index；Associativity between carbon fibre material is poor, is easy
The case where now loosely falling off.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of molecular weight distributions low, good fluidity, melt index
The method of modifying of PA6 base-material in composite thermoplastic carbon fiber material high, associativity is stable.
To achieve the above object, the present invention provides the following technical scheme that PA6 in a kind of composite thermoplastic carbon fiber material
The method of modifying of base-material, which is characterized in that steps are as follows: the more complete molding PA6 base-material of a, screening；It b, will be complete in step a
At added in the PA6 base-material of screening just, pay antioxidant, heat stabilizer, ultraviolet absorbing agent, wherein PA6 base-material be 85% -95%,
Just, antioxidant 0.1% -0.5%, heat stabilizer 0.1% -2%, ultraviolet absorbing agent 1% -3%, fire retardant 1% -8%, toughener are paid
2%—5%；C, by the PA6 base-material in step b and the dedicated Granulation Equipments of each component investment, it is promoted to stir and heat mixing.
Wherein, just, pay antioxidant be Hinered phenols antioxidant, phosphite ester antioxidant.
Wherein, heat stabilizer is organic tin heat stabilizer or machine compound heat stabilizer.
Wherein, ultraviolet absorbing agent is ultraviolet absorbing agent uv531.
Wherein, ultraviolet absorbing agent is ultraviolet absorbing agent uv531.
Wherein, fire retardant is halogen-free flame retardants.
Wherein, toughener is thermoplastic elastomer (TPE) class toughener.
Wherein, the temperature that mixing is heated in step c is 180 DEG C -250 DEG C.
By adopting the above technical scheme, molecular weight distribution by modified PA6 base-material is low, good fluidity, melt index
Height is stablized with the associativity of carbon fiber, is promoted using the interlayer faults of the PA6 composite thermoplastic carbon fiber material processed as base-material
Toughness is stablized, not easily to fall off；Tensile strength and bending strength are high；The addition of fire retardant promotes its fire-retardant rank to reach V0 grades, makes
It is more preferable with safety.And after the combination of modified PA6 base-material and carbon fiber is more stable, the suction of PA class material is overcome
Moist big, product size stability is poor, and intensity and hardness are also nothing like the defect of metal, thus enhance by PA6 base-material with
The performance for the composite thermoplastic carbon fiber material that carbon fiber is formed after combining.
Specific embodiment
The present invention be a kind of composite thermoplastic carbon fiber material in PA6 base-material method of modifying, steps are as follows: a, screening compared with
For complete molding PA6 base-material；B, will be completed in step a screening PA6 base-material in add just, pay antioxidant, heat stabilizer, purple
Ultraviolet absorbers, wherein PA6 base-material be 85% -95%, just, pay antioxidant 0.1% -0.5%, be heat stabilizer 0.1% -2%, ultraviolet
Light absorbers 1% -3%, fire retardant 1% -8%, toughener 2% -5%；
C, by the PA6 base-material in step b and the dedicated Granulation Equipments of each component investment, it is promoted to stir and heat mixing.
In embodiments of the present invention, just, pay antioxidant be Hinered phenols antioxidant, phosphite ester antioxidant.Thermostabilization
Agent is organic tin heat stabilizer or machine compound heat stabilizer.Ultraviolet absorbing agent is ultraviolet absorbing agent uv531.Ultraviolet light
Absorbent is ultraviolet absorbing agent uv531.Fire retardant is halogen-free flame retardants.Toughener is thermoplastic elastomer (TPE) class toughener, main
It to be phenylethylene and polyolefins.The temperature that mixing is heated in step c is 180 DEG C -250 DEG C.
In the embodiment of the present invention 1, PA6 base-material 85%, just, pay antioxidant 0.1%, heat stabilizer 0.1%, ultraviolet light inhale
Receive agent 1%, fire retardant 1%, toughener 2%.
By said ratio, table is marked on a map such as using the Test Drawing of the modified PA6 carbon fibre composite processed
Under:
| Tensile strength/MPa | 3028 |
| Interlaminar fracture toughness/(kj/m2) | 1.0-1.5 |
| Tensile modulus of elasticity/GPa | 149 |
| Anti-flammability | V-2 |
| Bending elastic modulus/GPa | 130 |
| Bending strength/MPa | 1560 |
| Notch impact strength | 9.2 |
| Water absorption rate | 1.8 |
| Density Density | 1.08 |
In the embodiment of the present invention 2, PA6 base-material 90%, just, pay antioxidant 0.35%, heat stabilizer 0.15%, ultraviolet radiation absorption
Agent 2%, fire retardant 5.5%, toughener 3.5%.
By said ratio, table is marked on a map such as using the Test Drawing of the modified PA6 carbon fibre composite processed
Under:
| Tensile strength/MPa | 3030 |
| Interlaminar fracture toughness/(kj/m2) | 1.1-1.6 |
| Tensile modulus of elasticity/GPa | 152 |
| Anti-flammability | V-2 |
| Bending elastic modulus/GPa | 136 |
| Bending strength/MPa | 1563 |
| Notch impact strength | 9.5 |
| Water absorption rate | 1.85 |
| Density Density | 1.1 |
In the embodiment of the present invention 3, PA6 base-material 95%, just, pay antioxidant 0.5%, heat stabilizer 2%, ultraviolet absorbing agent 3%,
Fire retardant 8%, toughener 5%.
By said ratio, table is marked on a map such as using the Test Drawing of the modified PA6 carbon fibre composite processed
Under:
| Tensile strength/MPa | 3036 |
| Interlaminar fracture toughness/(kj/m2) | 1.1-1.7 |
| Tensile modulus of elasticity/GPa | 162 |
| Anti-flammability | V-0 |
| Bending elastic modulus/GPa | 142 |
| Bending strength/MPa | 1568 |
| Notch impact strength | 9.8 |
| Water absorption rate | 1.89 |
| Density Density | 1.13 |
By the proportional quantity of above three embodiments as it can be seen that PA6 is modified, each side of the composite thermoplastic carbon fiber material processed
Face performance all increases.
Claims (8)
1. the method for modifying of PA6 base-material in a kind of composite thermoplastic carbon fiber material, which is characterized in that steps are as follows: a, screening
More complete molding PA6 base-material；
B, will complete to add in the PA6 base-material of screening in step a just, pay antioxidant, be heat stabilizer, ultraviolet absorbing agent, fire-retardant
Agent and toughener, wherein PA6 base-material be 85% -95%, just, pay antioxidant 0.1% -0.5%, be heat stabilizer 0.1% -2%, ultraviolet
Light absorbers 1% -3%, fire retardant 1% -8%, toughener 2% -5%；
C, by the PA6 base-material in step b and the dedicated Granulation Equipments of each component investment, it is promoted to stir and heat mixing.
2. the method for modifying of PA6 base-material in composite thermoplastic carbon fiber material according to claim 1, it is characterised in that:
It is described just, to pay antioxidant be Hinered phenols antioxidant, phosphite ester antioxidant.
3. the method for modifying of PA6 base-material, feature exist in composite thermoplastic carbon fiber material according to claim 1 or 2
In: the heat stabilizer is organic tin heat stabilizer or machine compound heat stabilizer.
4. the method for modifying of PA6 base-material, feature exist in composite thermoplastic carbon fiber material according to claim 1 or 2
In: the ultraviolet absorbing agent is ultraviolet absorbing agent uv531.
5. the method for modifying of PA6 base-material in composite thermoplastic carbon fiber material according to claim 3, it is characterised in that:
The ultraviolet absorbing agent is ultraviolet absorbing agent uv531.
6. the method for modifying of PA6 base-material, feature in composite thermoplastic carbon fiber material described according to claim 1 or 2 or 5
Be: the fire retardant is halogen-free flame retardants.
7. the method for modifying of PA6 base-material, feature in composite thermoplastic carbon fiber material described according to claim 1 or 2 or 5
Be: the toughener is thermoplastic elastomer (TPE) class toughener.
8. the method for modifying of PA6 base-material, feature in composite thermoplastic carbon fiber material described according to claim 1 or 2 or 5
Be: the temperature that mixing is heated in the step c is 180 DEG C -250 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810875123.8A CN109054369A (en) | 2018-08-03 | 2018-08-03 | The method of modifying of PA6 base-material in composite thermoplastic carbon fiber material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810875123.8A CN109054369A (en) | 2018-08-03 | 2018-08-03 | The method of modifying of PA6 base-material in composite thermoplastic carbon fiber material |
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| CN109054369A true CN109054369A (en) | 2018-12-21 |
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| CN201810875123.8A Pending CN109054369A (en) | 2018-08-03 | 2018-08-03 | The method of modifying of PA6 base-material in composite thermoplastic carbon fiber material |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408926A (en) * | 2013-06-26 | 2013-11-27 | 安徽科聚新材料有限公司 | Polyamide composite material and preparation method thereof |
| CN103540014A (en) * | 2012-07-17 | 2014-01-29 | 辽宁辽杰科技有限公司 | Continuous fiber enhanced resin prepreg as well as preparation method and application thereof |
| CN105504804A (en) * | 2015-12-30 | 2016-04-20 | 上海普利特复合材料股份有限公司 | Halogen-free flame-retardant carbon fiber-reinforced polyamide composite material and preparation method thereof |
-
2018
- 2018-08-03 CN CN201810875123.8A patent/CN109054369A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540014A (en) * | 2012-07-17 | 2014-01-29 | 辽宁辽杰科技有限公司 | Continuous fiber enhanced resin prepreg as well as preparation method and application thereof |
| CN103408926A (en) * | 2013-06-26 | 2013-11-27 | 安徽科聚新材料有限公司 | Polyamide composite material and preparation method thereof |
| CN105504804A (en) * | 2015-12-30 | 2016-04-20 | 上海普利特复合材料股份有限公司 | Halogen-free flame-retardant carbon fiber-reinforced polyamide composite material and preparation method thereof |
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Application publication date: 20181221 |
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