CN105968561A - Long-carbon fiber reinforced thermoplastic high-performance composite material and application thereof - Google Patents
Long-carbon fiber reinforced thermoplastic high-performance composite material and application thereof Download PDFInfo
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention relates to a long-carbon fiber reinforced thermoplastic high-performance composite material and an application thereof, belonging to the technical field of research and development, production and application of a novel environment-friendly material. The composite material contains homopolymer PP, copolymer PP, long-carbon fiber and the like, has the characteristics of low density, high strength and the like, and can replace traditional metal materials and thermosetting materials in the fields of aerospace vehicle components, rail transit vehicle covering parts and high-end car covering parts; and moreover, the product performance can be effectively improved, the product weight is reduced, and a new direction is exploited for the development of related fields.
Description
Technical field
The present invention relates to a kind of composite and application thereof, particularly relate to a kind of long carbon fiber and strengthen thermoplasticity high performance composite
Material and application thereof, belong to Novel environment-friendlymaterial material research and development, production, applied technical field.
Background technology
LFT, long fiber reinforcement thermoplastic, English is Long Fiber reinforced Thermoplastics.As far back as
The eighties in 20th century, American-European countries just proposes the concept of LFT.Simply, due to fiber impregnation technology at that time and long fibre
Dimension the injection of pellet, die press technology for forming and produce equipment the most backward, add at that time people at the short fibre of thermoplastic
Enhancing, filling and the research of other modification technologies and application aspect have been made significant headway, thus cause LFT technology
Research is progressive slowly.The mid-90 in 20th century, along with the fast development of auto industry, and people are to environmental protection and energy-conservation meaning
The enhancing known, especially energy crisis, petroleum price rise, promote automotive light weight technology to become the development trend of new automobile, also make
Obtain people again to have directed attention in the research and development of LFT.LFT-D is that long fiber reinforced thermoplastic composites exists
Line is directly produced a kind of Technology of goods, and it is different from the key factor of GMT and LFT-G is that semi-finished product step is removed
, the most flexible in the selection of material.In LFT-D technology, the not only content of fiber and length, and Lian Qiji
Body polymer can also directly be adjusted to the requirement of final parts.How much can change by the consumption of additive and affect goods
Mechanical performance and special applications properties of materials, such as heat stability, coloring, ultraviolet stability and fiber and matrix
Bonding characteristics etc., this also means that each special applications can obtain the material prescription of its uniqueness by LFT-D.
The reinforcing material that LFT-D uses at present is based on glass fibre, and its density is at 1.3g/cm3, its mechanical strength (includes
Bending strength, impact strength etc.) be only equivalent to equal silvalin content SMC about 60%.
C-LFT-D technology is the most at an early stage of development in the world, belongs to advanced cutting edge technology, not yet realizes bulk industrial application.
Summary of the invention
The technical problem to be solved is to overcome the defect of prior art to provide a kind of long carbon fiber to strengthen thermoplasticity height
Energy composite, this composite has the advantages such as intensity is high, density is low.Additionally, it is fine to the present invention further provides this long carbon
Dimension strengthens the application of thermoplasticity high-performance composite materials.
Of the present invention technical problem is that is realized by techniques below scheme.
A kind of long carbon fiber strengthens thermoplasticity high-performance composite materials, its by its by percentage by weight be 60～80% melted mixed
Compound and percentage by weight be 20～40% the carbon fiber wire of equal length be prepared from.
Above-mentioned long carbon fiber strengthen thermoplasticity high-performance composite materials, in described molten mixture containing weight ratio be 1～5:1 equal
Poly-PP, copolymerization PP；Account for PP gross weight 0.2～the 24# white oil containing HY-101 model aluminate coupling agent of 0.5%；Account for
PP gross weight 1%～5% by toughener SY-PP, dispersant 200 mesh EBS, UV absorbent UV326 or GW-944,
The mixed carrier of antioxidant DLTP composition.
Above-mentioned long carbon fiber strengthens thermoplasticity high-performance composite materials, described HY-101 model titanate coupling agent and 24# white oil
Weight ratio be 1:5；Toughener SY-PP, dispersant 200 mesh EBS, UV absorbent UV326 in described mixed carrier
Or the weight ratio of GW-944, antioxidant DLTP is 1:2:1:1.
Above-mentioned long carbon fiber enhancing thermoplasticity high-performance composite materials, a length of 25.4mm of the carbon fiber wire of described equal length,
Formed by 48 UT500-12K continuous carbon fibre silk fixed length cutting.
A kind of method preparing above-mentioned long carbon fiber enhancing thermoplasticity high-performance composite materials, comprises the steps:
(1) homopolymerization PP and the weight ratio of copolymerization PP are 1～5:1 to mix in mixed at high speed still, are subsequently adding PP gross weight
0.2～the 24# white oil containing HY-101 model aluminate coupling agent of 0.5%, described HY-101 model titanate coupling agent with
The weight ratio of 24# white oil is 1:5, and PP is carried out blending and modifying, obtains blending and modifying PP, standby；
(2) in step (1) in the blending and modifying PP of gained add PP gross weight 1%～5% by toughener SY-PP,
Dispersant 200 mesh EBS, UV absorbent UV326 or GW-944, the mixed carrier of antioxidant DLTP composition,
Toughener SY-PP, dispersant 200 mesh EBS, UV absorbent UV326 or GW-944 in described mixed carrier, anti-
The weight ratio of oxidant DLTP is 1:2:1:1, through high-speed stirred mix homogeneously, obtains mixture, standby；
(3) one-level double screw extruder sets mixture output as the 60～80% of final products weight, the temperature of each bringing-up section
Degree controls at 200 DEG C～230 DEG C, and step (2) gained mixture melts through one-level double screw extruder, obtains molten mixture,
Standby；
(4) automatic cutting equipment sets carbon fiber output as the 20～40% of final products weight, by 48 UT500-12K
Continuous carbon fibre silk to automatic cutting equipment by conveyance conduit, is carried out fixed length cutting, a length of 25.4mm to it, obtains isometric
The carbon fiber wire of degree, standby；
(5) drop to the carbon fiber wire of step (4) gained equal length, on the molten mixture of step (3) gained, pass through
The carbon fiber wire of molten mixture and equal length is carried out mixture by two grades of double screw extruders, regulation temperature be 200 DEG C～230 DEG C and
Rotating speed 150r/min, on the premise of the carbon fiber wire infiltration completely ensureing equal length, reduces the rotating speed of double screw extruder extremely
120r/min, reduces the damage of the length to carbon fiber；
(6) by the material of two grades of double screw extruder extrusions, it is described long carbon fiber and strengthens thermoplasticity high performance composite
Material.
Above-mentioned long carbon fiber strengthens thermoplasticity high-performance composite materials answering in terms of replacing traditional metal materials or thermosets
With.
Further, described application is to cover outside aerospace vehicle parts, rail traffic vehicles outer covering piece, high-end car
The fields such as part replace traditional metal materials and thermosets.
Long carbon fiber of the present invention strengthens thermoplasticity high-performance composite materials, and its material used is in prior art can
The material directly obtained, e.g., homopolymerization PP is HOPP, and copolymerization PP is COPP, and EBS is N.N '-1,2-
Double 18 (carbon) amide of second diyl, UV326 is 2'-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorobenzotriazole, GW-944
For poly-[6-[(1,1,3,3-tetramethyl butyl) amino]]-1,3,5-triazine-2,4-[(2,2,6,6 ,-tetramethyl-4-piperidyl) imino group]-1,6-oneself
Two supports [(2,2,6,6-tetramethyl-4-piperidyl) imino group] }, DLTP is the double lauryls of thio-2 acid etc..
The present invention, on the basis of tradition G-LFT-D, in conjunction with applicant in carbon fibre, the advantage in carbon felt field, puts forth effort to develop length
Fibre reinforced thermoplasticity high-performance composite materials (C-LFT-D).Long carbon fiber of the present invention strengthens thermoplasticity high-performance
Composite is obtained by specific material proportion and specific preparation technology, and compared with tradition G-LFT-D (PP), density reduces
17.39%, hot strength improves 425.00%, bending strength improves 320.00%, and impact strength improves 550.00%.
There is good material behavior, in Aero-Space owing to long carbon fiber of the present invention strengthens thermoplasticity high-performance composite materials
Device parts, rail traffic vehicles outer covering piece, high-end car outer covering piece field can replace traditional metal materials and thermosetting
Material, it is possible to effectively improving product performance, reduces product weight, and new direction has been opened up in the development for association area.
Accompanying drawing explanation
Fig. 1 long carbon fiber of the present invention strengthens thermoplasticity high-performance composite materials preparation flow figure
Detailed description of the invention
Below by detailed description of the invention, the present invention is described in further detail, but is only intended to help and understands the present invention, make
Professional and technical personnel in the field are capable of or use the present invention, and the present invention does not constitute any restriction.
Embodiment 1 long carbon fiber of the present invention strengthens the preparation of thermoplasticity high-performance composite materials
Composition:
Long carbon fiber strengthens thermoplasticity high-performance composite materials, and it by the molten mixture that weight ratio is 70% with weight ratio is
The carbon fiber wire of 30% equal length is prepared from；Containing the homopolymerization PP of 10kg, 5kg copolymerization PP in described molten mixture,
0.045kg contains the 24# white oil of HY-101 model aluminate coupling agent, 0.45kg by toughener SY-PP, dispersant 200
The mixed carrier of mesh EBS, UV absorbent UV326, antioxidant DLTP composition；Described HY-101 model titanate esters
Coupling agent is 0.0075kg, and described 24# white oil is 0.0375kg；In described mixed carrier, toughener SY-PP is 0.09kg, divides
Powder 200 mesh EBS is 0.18kg, UV absorbent UV326 is 0.09kg, antioxidant DLTP is 0.09kg；Institute
The a length of 25.4mm of the carbon fiber wire of equal length, is formed by UT500-12K continuous carbon fibre silk fixed length cutting.
Preparation method, comprises the steps:
(1) homopolymerization PP mixes in mixed at high speed still with copolymerization PP, is subsequently adding containing HY-101 model Aluminate coupling
The 24# white oil of agent, carries out blending and modifying to PP, obtains blending and modifying PP, standby；
(2) in step (1), the blending and modifying PP of gained adds by toughener SY-PP, dispersant 200 mesh EBS,
The mixed carrier of UV absorbent UV326, antioxidant DLTP composition, through high-speed stirred mix homogeneously, obtains mixture,
Standby；
(3) one-level double screw extruder sets mixture output as the 70% of final products weight, the temperature control of each bringing-up section
System is at 200 DEG C～230 DEG C, and step (2) gained mixture melts through one-level double screw extruder, obtains molten mixture, standby
With；
(4) automatic cutting equipment sets carbon fiber output as the 30% of final products weight, by 48 UT500-12K even
Continuous carbon fiber wire to automatic cutting equipment by conveyance conduit, is carried out fixed length cutting, a length of 25.4mm to it, obtains equal length
Carbon fiber wire, standby；
(5) drop to the carbon fiber wire of step (4) gained equal length, on the molten mixture of step (3) gained, pass through
The carbon fiber wire of molten mixture and equal length is carried out mixture by two grades of double screw extruders, regulation temperature be 200 DEG C～230 DEG C and
Rotating speed 150r/min, on the premise of the carbon fiber wire infiltration completely ensureing equal length, reduces the rotating speed of double screw extruder extremely
120r/min, reduces the damage of the length to carbon fiber；
(6) by the material of two grades of double screw extruder extrusions, it is described long carbon fiber and strengthens thermoplasticity high performance composite
Material.
Embodiment 2 long carbon fiber of the present invention strengthens the preparation of thermoplasticity high-performance composite materials
Composition:
Long carbon fiber strengthens thermoplasticity high-performance composite materials, and it by the molten mixture that weight ratio is 60% with weight ratio is
The carbon fiber wire of 40% equal length is prepared from；Containing the homopolymerization PP of 5kg, 5kg copolymerization PP in described molten mixture, 0.02kg
Containing the 24# white oil of HY-101 model aluminate coupling agent, 0.1kg by toughener SY-PP, dispersant 200 mesh EBS,
The mixed carrier of UV absorbent GW-944, antioxidant DLTP composition；Described HY-101 model titanate coupling agent
For 0.003kg, described 24# white oil is 0.018kg；In described mixed carrier toughener SY-PP be 0.02kg, dispersant 200
Mesh EBS is 0.04kg, UV absorbent GW-944 is 0.02kg, antioxidant DLTP is 0.02kg；Institute's equal length
The a length of 25.4mm of carbon fiber wire, UT500-12K continuous carbon fibre silk fixed length cutting form.
Preparation method, comprises the steps:
(1) homopolymerization PP mixes in mixed at high speed still with copolymerization PP, is subsequently adding containing HY-101 model Aluminate coupling
The 24# white oil of agent, carries out blending and modifying to PP, obtains blending and modifying PP, standby；
(2) in step (1), the blending and modifying PP of gained adds by toughener SY-PP, dispersant 200 mesh EBS,
The mixed carrier of UV absorbent GW-944, antioxidant DLTP composition, through high-speed stirred mix homogeneously, obtains mixture,
Standby；
(3) one-level double screw extruder sets mixture output as the 60% of final products weight, the temperature control of each bringing-up section
System is at 200 DEG C～230 DEG C, and step (2) gained mixture melts through one-level double screw extruder, obtains molten mixture, standby
With；
(4) automatic cutting equipment sets carbon fiber output as the 40% of final products weight, by 48 UT500-12K even
Continuous carbon fiber wire to automatic cutting equipment by conveyance conduit, is carried out fixed length cutting, a length of 25.4mm to it, obtains equal length
Carbon fiber wire, standby；
(5) drop to the carbon fiber wire of step (4) gained equal length, on the molten mixture of step (3) gained, pass through
The carbon fiber wire of molten mixture and equal length is carried out mixture by two grades of double screw extruders, regulation temperature be 200 DEG C～230 DEG C and
Rotating speed 150r/min, on the premise of the carbon fiber wire infiltration completely ensureing equal length, reduces the rotating speed of double screw extruder extremely
120r/min, reduces the damage of the length to carbon fiber；
(6) by the material of two grades of double screw extruder extrusions, it is described long carbon fiber and strengthens thermoplasticity high performance composite
Material.
Embodiment 3 long carbon fiber of the present invention strengthens the preparation of thermoplasticity high-performance composite materials
Composition:
Long carbon fiber strengthens thermoplasticity high-performance composite materials, and it by the molten mixture that weight ratio is 80% with weight ratio is
The carbon fiber wire of 20% equal length is prepared from；Containing the homopolymerization PP of 25kg, 5kg copolymerization PP in described molten mixture,
0.15kg contains the 24# white oil of HY-101 model aluminate coupling agent, 1.5kg by toughener SY-PP, dispersant 200
The mixed carrier of mesh EBS, UV absorbent UV326, antioxidant DLTP composition；Described HY-101 model titanate esters
Coupling agent is 0.025kg, and described 24# white oil is 0.125kg；In described mixed carrier, toughener SY-PP is 0.3kg, dispersion
Agent 200 mesh EBS is 0.6kg, UV absorbent UV326 is 0.3kg, antioxidant DLTP is 0.3kg；Institute is isometric
The a length of 25.4mm of the carbon fiber wire of degree, is formed by UT500-12K continuous carbon fibre silk fixed length cutting.
Preparation method, comprises the steps:
(1) homopolymerization PP mixes in mixed at high speed still with copolymerization PP, is subsequently adding containing HY-101 model Aluminate coupling
The 24# white oil of agent, carries out blending and modifying to PP, obtains blending and modifying PP, standby；
(2) in step (1), the blending and modifying PP of gained adds by toughener SY-PP, dispersant 200 mesh EBS,
The mixed carrier of UV absorbent UV326, antioxidant DLTP composition, through high-speed stirred mix homogeneously, obtains mixture,
Standby；
(3) one-level double screw extruder sets mixture output as the 80% of final products weight, the temperature control of each bringing-up section
System is at 200 DEG C～230 DEG C, and step (2) gained mixture melts through one-level double screw extruder, obtains molten mixture, standby
With；
(4) automatic cutting equipment sets carbon fiber output as the 20% of final products weight, by 48 UT500-12K even
Continuous carbon fiber wire to automatic cutting equipment by conveyance conduit, is carried out fixed length cutting, a length of 25.4mm to it, obtains equal length
Carbon fiber wire, standby；
(5) drop to the carbon fiber wire of step (4) gained equal length, on the molten mixture of step (3) gained, pass through
The carbon fiber wire of molten mixture and equal length is carried out mixture by two grades of double screw extruders, regulation temperature be 200 DEG C～230 DEG C and
Rotating speed 150r/min, on the premise of the carbon fiber wire infiltration completely ensureing equal length, reduces the rotating speed of double screw extruder extremely
120r/min, reduces the damage of the length to carbon fiber；
(6) by the material of two grades of double screw extruder extrusions, it is described long carbon fiber and strengthens thermoplasticity high performance composite
Material.
Embodiment 4 uses long carbon fiber of the present invention enhancing thermoplasticity high-performance composite materials to prepare the front bumper of car
(1) according to technological requirement, the material extruding two-stage double screw extruder carries out constant length cut-to-measure and breaks, i.e. according to product
The weight of product, in input automatic cutting system, equipment automatic cut-to-length quantitatively cuts off, and by insulation 160～180 DEG C, conveying is logical
Road is transported to suitable position, utilizes mechanical hand to be taken off from insulation conveyer belt by material, is placed in mould；
(2) stone terminates the descending compacting of rear press and pressurizes；
(3) pressurize, when carrying out heat-insulation pressure keeping 70s after force value 20000KN reaching regulation；
(4) product stripping, after press die sinking, looses core and returns, ejecting product；
(5) take product, after product completely disengages from mould, use mechanical hand or manually product taken out from mould, placing
In frock；
(6) post processing, polishes off product overlap, forbids the scuffing product that collides with, and product edge also must not have sawtooth etc. bad
Phenomenon；
(7) product surface is processed, eliminate releasing agent and the defect of product surface；
(8) spray paint process, including priming paint, middle painting, finish paint, varnish etc.；
(9) front bumper of car is obtained.
Embodiment 5 uses long carbon fiber of the present invention enhancing thermoplasticity high-performance composite materials to prepare the rear spoiler of car
(1) according to technological requirement, the material extruding two-stage double screw extruder carries out constant length cut-to-measure and breaks, i.e. according to product
The weight of product, in input automatic cutting system, equipment automatic cut-to-length quantitatively cuts off, and by insulation 160～180 DEG C, conveying is logical
Road is transported to suitable position, utilizes mechanical hand to be taken off from insulation conveyer belt by material, is placed in mould；
(2) stone terminates the descending compacting of rear press and pressurizes；
(3) pressurize, when carrying out heat-insulation pressure keeping 55s after force value 15000KN reaching regulation；
(4) product stripping, after press die sinking, looses core and returns, ejecting product；
(5) take product, after product completely disengages from mould, use mechanical hand or manually product taken out from mould, placing
In frock；
(6) post processing, polishes off product overlap, forbids the scuffing product that collides with, and product edge also must not have sawtooth etc. bad
Phenomenon；
(7) product surface is processed, eliminate releasing agent and the defect of product surface；
(8) spray paint process, including priming paint, middle painting, finish paint, varnish etc.；
(9) rear spoiler of car is obtained.
Test case 1 long carbon fiber of the present invention strengthens thermoplasticity high-performance composite materials performance test
Specify according in GB1463, GB/T1447-2005, GB/T1449-2005, GB/T1451-2005, real to the present invention
Execute the long carbon fiber prepared by example 1 and strengthen thermoplasticity high-performance composite materials and conventional fiber glass reinforced thermoplastics
(G-LFT-D) carry out performance test, be shown in Table 1.
Table 1 material property contrast table
As seen from the results in Table 1, long carbon fiber of the present invention strengthens thermoplasticity high-performance composite materials and tradition G-LFT-D
(PP) comparing, density reduces 17.39%, and hot strength improves 425.00%, and bending strength improves 320.00%, impact
Intensity improves 550.00%, has extraordinary material behavior, can be cladded with at aerospace vehicle parts, rail traffic vehicles
Cover piece, high-end car outer covering piece field replace traditional metal materials and thermosets, it is possible to effectively improving product performance,
Reduce product weight.
Below it is only the preferred embodiment of the present invention, not in order to limit the present invention, to those skilled in the art,
Under the premise without departing from the principles of the invention, it is also possible to some improvement of making, retouching, equivalent, should be included in this
Within the protection domain of invention.
Claims (7)
1. a long carbon fiber strengthens thermoplasticity high-performance composite materials, it is characterised in that it is 60～80% by percentage by weight
Molten mixture and percentage by weight be 20～40% the carbon fiber wire of equal length be prepared from.
Long carbon fiber the most according to claim 1 strengthens thermoplasticity high-performance composite materials, it is characterised in that described melted
Containing homopolymerization PP, the copolymerization PP that weight ratio is 1～5:1 in mixture；Account for PP gross weight 0.2～0.5% containing HY-101 type
The 24# white oil of number aluminate coupling agent；Account for PP gross weight 1%～5% by toughener SY-PP, dispersant 200 mesh EBS,
UV absorbent UV326 or the mixed carrier of GW-944, antioxidant DLTP composition.
Long carbon fiber the most according to claim 2 strengthens thermoplasticity high-performance composite materials, it is characterised in that described HY-101
Model titanate coupling agent is 1:5 with the weight ratio of 24# white oil；Toughener SY-PP, dispersant 200 mesh in described mixed carrier
EBS, UV absorbent UV326 or GW-944, the weight ratio of antioxidant DLTP are 1:2:1:1.
Long carbon fiber the most according to claim 3 strengthens thermoplasticity high-performance composite materials, it is characterised in that described isometric
The a length of 25.4mm of the carbon fiber wire of degree, is formed by 48 UT500-12K continuous carbon fibre silk fixed length cutting.
5. the method that the long carbon fiber described in a claim 4 strengthens thermoplasticity high-performance composite materials, it is characterised in that bag
Include following steps:
(1) homopolymerization PP and the weight ratio of copolymerization PP are 1～5:1 to mix in mixed at high speed still, are subsequently adding PP gross weight
0.2～the 24# white oil containing HY-101 model aluminate coupling agent of 0.5%, described HY-101 model titanate coupling agent and 24#
The weight ratio of white oil is 1:5, and PP is carried out blending and modifying, obtains blending and modifying PP, standby；
(2) in step (1) in the blending and modifying PP of gained add PP gross weight 1%～5% by toughener SY-PP,
Dispersant 200 mesh EBS, UV absorbent UV326 or GW-944, the mixed carrier of antioxidant DLTP composition, institute
State toughener SY-PP in mixed carrier, dispersant 200 mesh EBS, UV absorbent UV326 or GW-944, antioxidation
The weight ratio of agent DLTP is 1:2:1:1, through high-speed stirred mix homogeneously, obtains mixture, standby；
(3) one-level double screw extruder sets mixture output as the 60～80% of final products weight, the temperature of each bringing-up section
Controlling at 200 DEG C～230 DEG C, step (2) gained mixture melts through one-level double screw extruder, obtains molten mixture, standby
With；
(4) automatic cutting equipment sets carbon fiber output as the 20～40% of final products weight, by 48 UT500-12K
Continuous carbon fibre silk to automatic cutting equipment by conveyance conduit, is carried out fixed length cutting, a length of 25.4mm to it, obtains equal length
Carbon fiber wire, standby；
(5) carbon fiber wire of step (4) gained equal length is dropped on the molten mixture of step (3) gained, by two
The carbon fiber wire of molten mixture and equal length is carried out mixture by level double screw extruder, and regulation temperature is 200 DEG C～230 DEG C and turns
Speed 150r/min, on the premise of the carbon fiber wire infiltration completely ensureing equal length, reduces the rotating speed of double screw extruder extremely
120r/min, reduces the damage of the length to carbon fiber；
(6) by the material of two grades of double screw extruder extrusions, it is described long carbon fiber and strengthens thermoplasticity high-performance composite materials.
6. the long carbon fiber described in any one of Claims 1-4 strengthens thermoplasticity high-performance composite materials at replacement conventional metals material
Application in terms of material or thermosets.
Application the most according to claim 6, it is characterised in that this application is at aerospace vehicle parts, rail vehicle
The field such as outer covering piece, high-end car outer covering piece replaces traditional metal materials and thermosets.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108216837A (en) * | 2017-12-29 | 2018-06-29 | 河北立格新材料科技股份有限公司 | A kind of pallet for logistic of advanced composite material (ACM) |
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| CN109955518A (en) * | 2019-04-23 | 2019-07-02 | 河北立格新材料科技股份有限公司 | A method of bonnet is prepared by carbon fiber and thermoplastic composite |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108216837A (en) * | 2017-12-29 | 2018-06-29 | 河北立格新材料科技股份有限公司 | A kind of pallet for logistic of advanced composite material (ACM) |
| CN108216838A (en) * | 2017-12-29 | 2018-06-29 | 河北立格新材料科技股份有限公司 | The pallet for logistic and its preparation process of a kind of advanced composite material (ACM) |
| CN108216838B (en) * | 2017-12-29 | 2020-04-24 | 河北立格新材料科技股份有限公司 | Novel composite material pallet for logistics and preparation process thereof |
| CN109955518A (en) * | 2019-04-23 | 2019-07-02 | 河北立格新材料科技股份有限公司 | A method of bonnet is prepared by carbon fiber and thermoplastic composite |
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| Publication number | Publication date |
|---|---|
| CN105968561B (en) | 2018-06-26 |
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