CN107237002A - A kind of polyether-ether-ketone/chopped fiber composite wire material and preparation method thereof - Google Patents
A kind of polyether-ether-ketone/chopped fiber composite wire material and preparation method thereof Download PDFInfo
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- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
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Abstract
A kind of polyether-ether-ketone/chopped fiber composite wire material for FDM and preparation method thereof, belongs to Material for Fused Deposition Modeling and preparation method thereof, solves pure PEEK shrinkage factors height, the problem of interfacial bonding strength is low during printing.Composite wire material provided by the present invention, the chopped fiber is the inorfil that is chopped, the chopped fiber is after surface oxidation treatment, added again with dispersant in ethanol solution, it is agitated and ultrasonically treated as primary suspension, polyether-ether-ketone powder is added wherein, stir and ultrasonically treated obtain secondary suspension, it is depressurized after suction filtration, drying and ball milling, obtain composite powder, then turn into composite wire material through granulation and wire drawing.The composite wire material of the present invention, form is uniform, with more preferable rigidity, toughness and anti-wear performance, and chemical resistance is good, and temperature in use can be more than 260 DEG C, and shrinkage factor is substantially reduced in for FDM forming processes, and interfacial bonding strength is improved.
Description
Technical field
The invention belongs to Material for Fused Deposition Modeling and preparation method thereof, and in particular to and a kind of polyether-ether-ketone for FDM/
Chopped fiber composite wire material and preparation method thereof.
Background technology
Fused glass pellet (Fused Deposition Modeling, FDM) technology is important point of increases material manufacturing technology
Branch, be widely used at present product development, fast mould make, medicine equipment design and develop and human organ prototype system
Make, represent an important development direction of rapid prototyping ＆ manufacturing technology.
Thought of the fused glass pellet based on discrete dynamics models, thread thermoplastic resin is heated by shower nozzle and melted, and is led to
Cross the nozzle of shower nozzle to extrude with certain speed spray, shower nozzle is moved in the horizontal direction, and makes the thermoplastic resin of thawing selective
Coating on the table；Workbench is vertically moved simultaneously, is completed per layer cross section after shaping, and workbench declines one and cut
The height of surface layer, so, the material of extrusion are welded together with previous aspect, so circulation, are made until completing whole entity
Type.Fusion sediment does not need laser in forming process, and plant maintenance is convenient, and extensively, automaticity is high and accounts for for moulding material
Ground area is small,
Polyether-ether-ketone (polyether~ether~ketone, PEEK) is that ICI companies of Britain developed first in 1978
On a kind of all aromatic semi-crystalline thermoplastic engineering plastics gone out, its macromolecular chain containing rigid phenyl ring, submissive ehter bond and
Carbonyl, compound with regular structure, with excellent mechanical performance, resistant to chemical etching, creep resistance, radioresistance, antifatigue and significant heat
Stability, thus obtain special engineered modeling as fields such as Aero-Space, derived energy chemical, communications and transportation, food processing, health cares
Material.
Big (up to 5%) yet with PEEK shrinkage factors, molten state viscosity is high, poor fluidity, and rises viscosity change with temperature
Change is small, and layers cementing intensity is low during shaping, it is difficult to be molded raw material separately as FDM.
Material is to influence the key of increases material manufacturing technology development, and precision and physical and mechanical properties to drip molding play pass
The effect of key, due to viscosity higher under the surface inertness and polyether-ether-ketone molten condition of inorfil, at the same time polyethers ether
Ketone is dissolved only in a few solvent such as concentrated sulfuric acid MEK, it is impossible to using solvent precipitation prepares uniform polyether-ether-ketone coat it is short
Fiber composite particle, therefore for preparing polyether-ether-ketone/short fiber composite material, the distribution of composite middle short fiber is equal
Even property and interfacial bonding property are keys prepared by composite.
The content of the invention
The present invention provides a kind of PEEK/SF composite wire materials for FDM fused glass pellets, while providing its preparation side
Method, solves pure PEEK shrinkage factors height, the problem of interfacial bonding strength is low during printing.
It is provided by the present invention it is a kind of for fused glass pellet (FDM) polyether-ether-ketone (polyether~ether~
Ketone, PEEK)/chopped fiber (Short fiber, SF) composite wire material, include polyether-ether-ketone and chopped fiber, it is characterised in that：
The chopped fiber is be chopped inorfil, 8~10 μm of diameter, length≤500 μm；
The percent by volume of the polyether-ether-ketone and chopped fiber is 50vol%~95vol%：50vol%~5vol%；
The chopped fiber is added in ethanol solution after surface oxidation treatment, then with dispersant, agitated and ultrasonically treated
As primary suspension, polyether-ether-ketone powder is added wherein, stir and it is ultrasonically treated obtain secondary suspension, it is depressurized and taken out
After filter, dry and ball milling, composite powder is obtained, then turn into composite wire material through granulation and wire drawing；
The composite wire material diameter is adapted with FDM techniques, can be 1.75mm or 3mm.
The chopped inorfil can be glass fibre (SCF), boron fibre (SBF), ceramic fibre (SAF) or carbon fiber
(SCF)。
The preparation method of the polyether-ether-ketone/chopped fiber composite wire material, it is characterised in that it is comprised the steps of：
(1) washing by soaking step：Chopped fiber is placed in immersion 24h~48h in acetone soln, to remove the organic slurry in its surface
Material；It is placed in after washing in vacuum drying chamber and is warming up to 80 DEG C~120 DEG C, is incubated 8h~12h, obtains dry chopped fiber of removing photoresist；
(2) oxidation treatment step：Chopped fiber will be dried to be added in salpeter solution, the ultrasonic agitation at a temperature of 55~65 DEG C
3h~4h, carries out surface oxidation treatment, then salpeter solution is diluted, stratification, suction filtration, washing, drying, obtain drying net
Material；Salpeter solution concentration >=the 60wt.%；The SF for surface grafting oxygen-containing functional group is expected in resulting drying only；
(3) primary suspension step is prepared：By resulting drying only material and dispersant be added to concentration for 70%~
In 100Vol.% ethanol solution, while stirring, ultrasonically treated 1h~3h obtains uniform primary suspension；Dry net material
It is less than 1 with the weight ratio of ethanol solution:10, mixing speed >=200r/min；Dispersant is with ethanol solution w/v
1.0g~2.0g/L；
(4) secondary suspension step is prepared：10~100 μm of PEEK powder of particle diameter is slowly added to primary suspension,
Stir and ultrasonically treated 3h~4h, obtain uniform secondary suspension；Mixing speed >=200r/min；PEEK powder and step
(3) the weight ratio of ethanol solution is less than 1:7；
(5) composite powder step is prepared：Secondary suspension is subjected to decompression suction filtration, obtained powder is through drying process, ball
Mill, sieving, obtain uniform polyether-ether-ketone/chopped fiber (PEEK/SF) composite powder；
(6) granulation step：The PEEK/SF composite powders are added to extruding pelletization in Planetary Screw Extruder, obtained
Feed particulate material；
(7) drawing step：Resulting feed particulate material is added to progress extrusion wire drawing in single screw extrusion machine, obtained
PEEK/SF is combined filamentary material, it is adaptable to which FDM shapings are used.
In the step (3), the dispersant can be hydroxyethyl cellulose (HEC), cetyl trimethylammonium bromide
(HTAB), alkyl phenol ethylene oxide condensation product emulsifying agent (OP), the one or more of lauryl sodium sulfate (SDS).
In the step (6), when Planetary Screw Extruder is granulated, the barrel temperature in each area is successively from charge door to head
For：330 DEG C~340 DEG C, 350 DEG C~360 DEG C, 350 DEG C~360 DEG C, 340 DEG C~350 DEG C.
In the step (7), each section of temperature of single screw extrusion machine be 320~330 DEG C, 350~360 DEG C, 360~370 DEG C,
340~350 DEG C, rotating speed is 6~15r/min.
The research of applicant shows, a certain amount of chopped fiber (Short fiber, SF) is added in polymeric matrix, can
The modified effect of enhancing is played to polymeric matrix, PEEK shrinkage factors are reduced, and layers cementing intensity is low when improving shaping
Shortcoming.
The present invention is by adding SF to PEEK composite modifications, to carry out grafting to SF surfaces using salpeter solution and change
Property, the chopped fiber of grafting oxygen-containing functional group is obtained, is allowed to realize good interface cohesion with PEEK；Using solution blending suction filtration
Method, makes SF and PEEK even particulate dispersions, obtains form uniformly, particle diameter is suitable, the PEEK/SF composite powders of good fluidity,
And realize the recycling and recycling of dispersion liquid.
Compared to pure PEEK, PEEK/SF composite wire materials provided by the present invention, form is uniform, with more preferable rigid, tough
Property and anti-wear performance, chemical resistance is good, and temperature in use more than 260 DEG C, can improve the thermal decomposition temperature of PEEK materials
Degree；Shrinkage factor is substantially reduced in for FDM forming processes, and interfacial bonding strength is improved.
Present invention process is simple, the potentiality for possessing a large amount of productions and Automated condtrol, particularly, is added in PEEK different
The SF of type, and by with PEEK different ratios, the composite of different modulus and mechanical property can be obtained, can be targetedly
Strengthen the PEEK performance such as mechanics, heat, friction, it be used for increases material manufacturing technology, expand its Aero-Space, mechanics, it is electric,
The application in the fields such as bioengineering.
Embodiment
With reference to embodiments, the present invention is described in more detail.
Embodiment 1, is comprised the steps of：
(1) washing by soaking step：300g short carbon fibers are placed in acetone soln and soak 24h, it is organic to remove its surface
Slurry；It is placed in after washing in vacuum drying chamber and is warming up to 120 DEG C, is incubated 12h, obtains dry chopped fiber of removing photoresist；
(2) oxidation treatment step：200g dryings chopped fiber is added in 2L salpeter solutions, ultrasound is stirred at a temperature of 55 DEG C
Mix 3h, carry out surface oxidation treatment, then salpeter solution is diluted, stratification, suction filtration, washing, drying, obtain drying net
Material；The salpeter solution concentration is 60wt.%；
(3) primary suspension step is prepared：Resulting 200g is dried into net material and 4.5g hydroxyethyl celluloses are added to
3L concentration is in 70Vol.% ethanol solution, while stirring, ultrasonically treated 3h obtains uniform primary suspension；It is dry
The weight ratio of dry net material and ethanol solution is less than 1:10, mixing speed 250r/min；Dispersant and ethanol solution w/v
For 1.5g/L；
(4) secondary suspension step is prepared：The PEEK powder 148.3g of 10~100 μm of particle diameter after 150 mesh are sieved, slowly
Add to primary suspension, stir and ultrasonically treated 4h, obtain uniform secondary suspension；Mixing speed 250r/min；PEEK
The weight ratio of powder and step (3) ethanol solution is less than 1:7；
(5) composite powder step is prepared：Secondary suspension is subjected to decompression suction filtration, obtained powder is through drying process, ball
Mill, sieving, obtain uniform polyether-ether-ketone/chopped fiber (PEEK/SF) composite powder；The volume ratio of polyether-ether-ketone and short carbon fiber
For 50Vol.%：50Vol.%；
(6) granulation step：The PEEK/SF composite powders are added to extruding pelletization in Planetary Screw Extruder, obtained
Feed particulate material；During granulation, the barrel temperature in each area is followed successively by from charge door to head：330 DEG C, 350 DEG C, 350 DEG C, 340 DEG C；
(7) drawing step：Resulting feed particulate material is added to progress extrusion wire drawing in single screw extrusion machine, obtained
PEEK/SF is combined filamentary material, and each section of temperature of single screw extrusion machine is 325 DEG C, and 355 DEG C, 365 DEG C, 345 DEG C, rotating speed is 6r/
min。
Embodiment 2, is comprised the steps of：
(1) washing by soaking step：100g short glass fibers are placed in acetone soln and soak 48h, are had to remove its surface
Machine slurry；It is placed in after washing in vacuum drying chamber and is warming up to 80 DEG C, is incubated 8h, obtains dry chopped fiber of removing photoresist；
(2) oxidation treatment step：80g dryings chopped fiber is added in 2L salpeter solutions, ultrasound is stirred at a temperature of 65 DEG C
Mix 4h, carry out surface oxidation treatment, then salpeter solution is diluted, stratification, suction filtration, washing, drying, obtain drying net
Material；The salpeter solution concentration is 69wt.%；
(3) primary suspension step is prepared：Resulting 65.56g is dried into net material and 3g cetyl trimethyl brominations
Ammonium (HTAB) is added in the ethanol solution that 1.5L concentration is 80Vol.%, while stirring, ultrasonically treated 2h, obtains uniform
Primary suspension；The weight ratio for drying net material and ethanol solution is less than 1:10, mixing speed 300r/min；Dispersant is molten with ethanol
Liquid w/v is 2.0g/L；
(4) secondary suspension step is prepared：The PEEK powder 100g of 10~100 μm of particle diameter after 150 mesh are sieved, slowly
Add to primary suspension, stir and ultrasonically treated 4h, obtain uniform secondary suspension；Mixing speed 350r/min；PEEK
The weight ratio of powder and step (3) ethanol solution is less than 1:7；
(5) composite powder step is prepared：Secondary suspension is subjected to decompression suction filtration, obtained powder is through drying process, ball
Mill, sieving, obtain uniform polyether-ether-ketone/chopped fiber (PEEK/SF) composite powder；The volume ratio of polyether-ether-ketone and short carbon fiber
For 75Vol.%：25Vol.%；
(6) granulation step：The PEEK/SF composite powders are added to extruding pelletization in Planetary Screw Extruder, obtained
Feed particulate material；During granulation, the barrel temperature in each area is followed successively by from charge door to head：340 DEG C, 360 DEG C, 360 DEG C, 350 DEG C；
(7) drawing step：Resulting feed particulate material is added to progress extrusion wire drawing in single screw extrusion machine, obtained
PEEK/SF is combined filamentary material, and each section of temperature of single screw extrusion machine is 330 DEG C, and 350 DEG C, 370 DEG C, 350 DEG C, rotating speed is 9r/
min。
Embodiment 3, is comprised the steps of：
(1) washing by soaking step：The short boron fibres of 110g (Short boron fiber, SBF) are placed in leaching in acetone soln
36h is steeped, to remove its surface organic ink；It is placed in after washing in vacuum drying chamber and is warming up to 80 DEG C, is incubated 10h, is removed photoresist
Dry chopped fiber；
(2) oxidation treatment step：103g dryings chopped fiber is added in 200mL salpeter solutions, surpassed at a temperature of 60 DEG C
Sound stir 3h, carry out surface oxidation treatment, then salpeter solution is diluted, stratification, suction filtration, washing, drying, obtain drying
Net material；The salpeter solution concentration is 75wt.%；
(3) primary suspension step is prepared：Resulting 102.3g is dried into net material and the condensation of 2g alkyl phenol ethylene oxides
Thing emulsifying agent is added in the ethanol solution that 2L concentration is 70Vol.%, while stirring, ultrasonically treated 3h, obtains uniform
Primary suspension；The weight ratio for drying net material and ethanol solution is less than 1:10, mixing speed 250r/min；Dispersant is molten with ethanol
Liquid w/v is 1.0g/L；
(4) secondary suspension step is prepared：The PEEK powder 100g of 10~100 μm of particle diameter after 150 mesh are sieved, it is slow to add
Enter to primary suspension, stir and ultrasonically treated 4h, obtain uniform secondary suspension；Mixing speed 300r/min；PEEK powder
End and the weight ratio of step (3) ethanol solution are less than 1:7；
(5) composite powder step is prepared：Secondary suspension is subjected to decompression suction filtration, obtained powder is through drying process, ball
Mill, sieving, obtain uniform polyether-ether-ketone/chopped fiber (PEEK/SF) composite powder；The volume ratio of polyether-ether-ketone and short carbon fiber
For 65Vol.%：35Vol.%；
(6) granulation step：The PEEK/SF composite powders are added to extruding pelletization in Planetary Screw Extruder, obtained
Feed particulate material；During granulation, the barrel temperature in each area is followed successively by from charge door to head：335 DEG C, 355 DEG C, 355 DEG C, 345 DEG C；
(7) drawing step：Resulting feed particulate material is added to progress extrusion wire drawing in single screw extrusion machine, obtained
PEEK/SF is combined filamentary material, and each section of temperature of single screw extrusion machine is 320 DEG C, and 355 DEG C, 360 DEG C, 350 DEG C, rotating speed is 12r/
min。
Embodiment 4, is comprised the steps of：
(1) washing by soaking step：50g aluminosilicate short fibers (Short aluminosilicate fiber, SAF) are put
In soaking 24h in acetone soln, to remove its surface organic ink；It is placed in after washing in vacuum drying chamber and is warming up to 110 DEG C, guarantor
Warm 8h, obtains dry chopped fiber of removing photoresist；
(2) oxidation treatment step：42g dryings chopped fiber is added in 300mL salpeter solutions, it is ultrasonic at a temperature of 65 DEG C
Stir 3h, carry out surface oxidation treatment, then salpeter solution is diluted, stratification, suction filtration, washing, drying, obtain drying net
Material；The salpeter solution concentration is 79wt.%；
(3) primary suspension step is prepared：Resulting 40g is dried into net material and 3g lauryl sodium sulfate (SDS) adds
Enter the concentration to 2L in 100Vol.% ethanol solution, while stirring, ultrasonically treated 2h obtains uniform primary suspension
Liquid；The weight ratio for drying net material and ethanol solution is less than 1:10, mixing speed 300r/min；Dispersant and ethanol solution weighing body
Product is than being 1.5g/L；
(4) secondary suspension step is prepared：The PEEK powder 100g of 10~100 μm of particle diameter after 150 mesh are sieved, it is slow to add
Enter to primary suspension, stir and ultrasonically treated 3h, obtain uniform secondary suspension；Mixing speed 350r/min；PEEK powder
End and the weight ratio of step (3) ethanol solution are less than 1:7；
(5) composite powder step is prepared：Secondary suspension is subjected to decompression suction filtration, obtained powder is through drying process, ball
Mill, sieving, obtain uniform polyether-ether-ketone/chopped fiber (PEEK/SF) composite powder；The volume ratio of polyether-ether-ketone and short carbon fiber
For 85Vol.%：15Vol.%；
(6) granulation step：The PEEK/SF composite powders are added to extruding pelletization in Planetary Screw Extruder, obtained
Feed particulate material；During granulation, the barrel temperature in each area is followed successively by from charge door to head：330 DEG C, 360 DEG C, 360 DEG C, 350 DEG C；
(7) drawing step：Resulting feed particulate material is added to progress extrusion wire drawing in single screw extrusion machine, obtained
PEEK/SF is combined filamentary material, and each section of temperature of single screw extrusion machine is 325 DEG C, and 350 DEG C, 370 DEG C, 355 DEG C, rotating speed is 15r/
min。
Embodiment 5, is comprised the steps of：
(1) washing by soaking step：50g short carbon fibers (Short carbon fiber, SCF) are placed in leaching in acetone soln
36h is steeped, to remove its surface organic ink；It is placed in after washing in vacuum drying chamber and is warming up to 120 DEG C, is incubated 10h, is removed photoresist
Dry chopped fiber；
(2) oxidation treatment step：30g dryings chopped fiber is added in 200mL salpeter solutions, it is ultrasonic at a temperature of 62 DEG C
Stir 4h, carry out surface oxidation treatment, then salpeter solution is diluted, stratification, suction filtration, washing, drying, obtain drying net
Material；The salpeter solution concentration is 69wt.%；
(3) primary suspension step is prepared：Resulting 7.10g is dried into net material and 4g hydroxyethyl celluloses are added to 2L
Concentration in 90Vol.% ethanol solution, while stirring, ultrasonically treated 3h obtains uniform primary suspension；Dry
The weight ratio of net material and ethanol solution is less than 1:10, mixing speed 250r/min；Dispersant is with ethanol solution w/v
2.0g/L；
(4) secondary suspension step is prepared：The PEEK powder 100g of 10~100 μm of particle diameter after 150 mesh are sieved, it is slow to add
Enter to primary suspension, stir and ultrasonically treated 4h, obtain uniform secondary suspension；Mixing speed 300r/min；PEEK powder
End and the weight ratio of step (3) ethanol solution are less than 1:7；
(5) composite powder step is prepared：Secondary suspension is subjected to decompression suction filtration, obtained powder is through drying process, ball
Mill, sieving, obtain uniform polyether-ether-ketone/chopped fiber (PEEK/SF) composite powder；The volume ratio of polyether-ether-ketone and short carbon fiber
For 95Vol.%：5Vol.%；
(6) granulation step：The PEEK/SF composite powders are added to extruding pelletization in Planetary Screw Extruder, obtained
Feed particulate material；During granulation, the barrel temperature in each area is followed successively by from charge door to head：340 DEG C, 360 DEG C, 365 DEG C, 350 DEG C；
(7) drawing step：Resulting feed particulate material is added to progress extrusion wire drawing in single screw extrusion machine, obtained
PEEK/SF is combined filamentary material, and each section of temperature of single screw extrusion machine is 330 DEG C, and 360 DEG C, 370 DEG C, 350 DEG C, rotating speed is 15r/
min。
Claims (6)
1. a kind of polyether-ether-ketone/chopped fiber composite wire material, for fused glass pellet, comprising polyether-ether-ketone and chopped fiber, it is special
Levy and be：
The chopped fiber is be chopped inorfil, 8~10 μm of diameter, length≤500 μm；
The percent by volume of the polyether-ether-ketone and chopped fiber is 50vol%~95vol%：50vol%~5vol%；
The chopped fiber is added in ethanol solution after surface oxidation treatment, then with dispersant, agitated and ultrasonically treated turn into
Primary suspension, wherein add polyether-ether-ketone powder, stir and it is ultrasonically treated obtain secondary suspension, it is depressurized suction filtration,
Dry and after ball milling, obtain composite powder, then turn into composite wire material through granulation and wire drawing；
The composite wire material diameter is adapted with FDM techniques.
2. polyether-ether-ketone as claimed in claim 1/chopped fiber composite wire material, it is characterised in that：
The chopped inorfil is glass fibre, boron fibre, ceramic fibre or carbon fiber.
3. the preparation method of polyether-ether-ketone described in claim 1 or 2/chopped fiber composite wire material, it is characterised in that it is comprising following
Step：
(1) washing by soaking step：Chopped fiber is placed in immersion 24h~48h in acetone soln, to remove its surface organic ink；
It is placed in after washing in vacuum drying chamber and is warming up to 80 DEG C~120 DEG C, is incubated 8h~12h, obtains dry chopped fiber of removing photoresist；
(2) oxidation treatment step：By dry chopped fiber be added in salpeter solution, at a temperature of 55~65 DEG C ultrasonic agitation 3h~
4h, carries out surface oxidation treatment, then salpeter solution is diluted, stratification, suction filtration, washing, drying, obtain drying net material；
Salpeter solution concentration >=the 60wt.%；
(3) primary suspension step is prepared：By resulting drying only material and dispersant be added to concentration for 70%~
In 100Vol.% ethanol solution, while stirring, ultrasonically treated 1h~3h obtains uniform primary suspension；Dry net material
It is less than 1 with the weight ratio of ethanol solution:10, mixing speed >=200r/min；Dispersant is with ethanol solution w/v
1.0g~2.0g/L；
(4) secondary suspension step is prepared：10~100 μm of PEEK powder of particle diameter is slowly added to primary suspension, stirring
And ultrasonically treated 3h~4h, obtain uniform secondary suspension；Mixing speed >=200r/min；PEEK powder and step (3) second
The weight ratio of alcoholic solution is less than 1:7；
(5) composite powder step is prepared：Secondary suspension is subjected to decompression suction filtration, obtained powder is through drying process, ball milling, mistake
Sieve, obtains uniform polyether-ether-ketone/chopped fiber (PEEK/SF) composite powder；
(6) granulation step：The PEEK/SF composite powders are added to extruding pelletization in Planetary Screw Extruder, particle is obtained
Shape raw material；
(7) drawing step：Resulting feed particulate material is added to progress extrusion wire drawing in single screw extrusion machine, obtained
PEEK/SF is combined filamentary material, it is adaptable to which FDM shapings are used.
4. the preparation method of polyether-ether-ketone as claimed in claim 3/chopped fiber composite wire material, it is characterised in that the step (3)
In, the dispersant is hydroxyethyl cellulose (HEC), cetyl trimethylammonium bromide (HTAB), alkyl phenol ethylene oxide contracting
The one or more of compound emulsifying agent (OP), lauryl sodium sulfate (SDS).
5. the preparation method of polyether-ether-ketone as claimed in claim 3/chopped fiber composite wire material, it is characterised in that the step (6)
During middle Planetary Screw Extruder granulation, the barrel temperature in each area is followed successively by from charge door to head：330 DEG C~340 DEG C, 350 DEG C
~360 DEG C, 350 DEG C~360 DEG C, 340 DEG C~350 DEG C.
6. the preparation method of polyether-ether-ketone as claimed in claim 3/chopped fiber composite wire material, it is characterised in that single in step (7)
Each section of temperature of screw extruder is 320~330 DEG C, and 350~360 DEG C, 360~370 DEG C, 340~350 DEG C, rotating speed is 6~15r/
min。
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