CN108752863A - A kind of composite modified polyetheretherketonematerials materials and its preparation method and application - Google Patents
A kind of composite modified polyetheretherketonematerials materials and its preparation method and application Download PDFInfo
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- CN108752863A CN108752863A CN201810425035.8A CN201810425035A CN108752863A CN 108752863 A CN108752863 A CN 108752863A CN 201810425035 A CN201810425035 A CN 201810425035A CN 108752863 A CN108752863 A CN 108752863A
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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
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/16—Condensation polymers of aldehydes or ketones with phenols only of ketones with phenols
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/02—Moulding by agglomerating
- B29C67/04—Sintering
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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
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- C08K2003/085—Copper
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
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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
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- 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
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Abstract
The present invention provides a kind of composite modified polyetheretherketonematerials materials, count in parts by weight, are prepared by the raw material including following components：55~65 parts of polyether-ether-ketone micro mist, 13~17 parts of ptfe micropowder, 7~9 parts of carbon fiber powder, 2.3~2.7 parts of glass powder, 3.3~3.7 parts of copper powder, 2.8~3.2 parts of graphite powder, 1.8~2.2 parts of silicon dioxide powder, 0.8~1.2 part of molybdenum disulphide powder, 2.8~3.2 parts of alicyclic hydrocarbon type solvent, 1.8~2.2 parts of Isopars.In composite modified polyetheretherketonematerials materials provided by the invention, each component can be merged fully, have synergistic effect between each other, and composite modified polyetheretherketonematerials materials can be made to have excellent high temperature resistance and mechanical property.
Description
Technical field
The present invention relates to sealing material technical fields, and in particular to a kind of composite modified polyetheretherketonematerials materials and its preparation side
Method and application.
Background technology
In fluid delivery system, valve is indispensable control unit, mainly has adjusting, water conservancy diversion, anti-reverse
The functions such as stream, cut-off, shunting, being widely used in industry and civil field are general.The operation temperature ratio of petrochemical plant
Higher, medium is mostly oil product, gas product, and inflammable, explosive, therefore, valve seal is selected in petrochemical plant pipe design
When, the sealing structure and sealing material of valve must be conscientiously studied, suitable valve seal is selected.
For polytetrafluoroethylene (PTFE) (PTFE) with the chemical stability of its height, extremely strong high- and low-temperature resistance performance is outstanding not glue
Property, good lubricity, excellent electrical insulating property, resistance to ag(e)ing, minimum water imbibition etc., in aerospace, petrochemical industry, machine
The fields such as tool industry, electronic apparatus, food industry, weaving have a wide range of applications.But meanwhile PTFE there are mechanical performance compared with
The defects of difference, linear expansion coefficient is big, and creep resistant is poor, and wear resistance is poor, and hardness is low, and molding and secondary operation are difficult, makes it answer
It is subject to certain restrictions with range.
In order to improve and overcome the defect of PTFE, the means such as, filling-modified or blending and modifying modified frequently with surface carry
Its high comprehensive performance, wherein especially with it is filling-modified it is the simplest, price is low and is generally used.Generally use in the prior art
Aluminium powder, polyphenyl fat etc. are filled modification to PTFE, but the modified ptfe material being prepared often has high temperature resistance
With the problem of mechanical property deficiency, service life is short.
Invention content
The purpose of the present invention is to provide a kind of composite modified polyetheretherketonematerials materials and its preparation method and application, the present invention
The composite modified polyetheretherketonematerials materials provided have excellent high temperature resistance and mechanical property.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical scheme：
The present invention provides a kind of composite modified polyetheretherketonematerials materials, count in parts by weight, by the original including following components
Material is prepared：
55~65 parts of polyether-ether-ketone micro mist, 13~17 parts of ptfe micropowder, 7~9 parts of carbon fiber powder, glass powder 2.3
~2.7 parts, 3.3~3.7 parts of copper powder, 2.8~3.2 parts of graphite powder, 1.8~2.2 parts of silicon dioxide powder, molybdenum disulphide powder 0.8~
1.2 parts, 2.8~3.2 parts of alicyclic hydrocarbon type solvent, 1.8~2.2 parts of Isopars.
Preferably, the filament diameter of the carbon fiber powder is 7~9 μm, and mesh number is 50~100.
Preferably, 9~13 μm of the filament diameter of the glass powder, mesh number are 300~400.
Preferably, the grain size of the copper powder is 3~5 μm.
Preferably, the grain size of the graphite powder is 10~30 μm.
The present invention provides the preparation methods of composite modified polyetheretherketonematerials materials described in above-mentioned technical proposal, including following step
Suddenly：
By polyether-ether-ketone micro mist, ptfe micropowder, carbon fiber powder, glass powder, copper powder, graphite powder, silicon dioxide powder,
Heated after molybdenum disulphide powder, alicyclic hydrocarbon type solvent and Isopars mixing, obtains mixes liquid material；
The mixes liquid material is subjected to injection molding, obtains molding materials；
The molding materials are sintered sizing, obtain composite modified polyetheretherketonematerials materials.
Preferably, the temperature of the heat treatment is 420 DEG C ± 5 DEG C.
Preferably, the pressure of the injection molding is 8~11Mpa；Dwell time is 8~20min.
Preferably, the sintering sizing includes warming-up section, high temperature sintering section and the temperature descending section carried out successively；The warming-up section
Temperature be 180~280 DEG C；The temperature of the high temperature sintering section is 360~400 DEG C；The temperature of the temperature descending section be 150~
320℃。
The present invention provides made described in composite modified polyetheretherketonematerials materials or above-mentioned technical proposal described in above-mentioned technical proposal
Application of the composite modified polyetheretherketonematerials materials that Preparation Method is prepared in valve sealing ring.
The present invention provides a kind of composite modified polyetheretherketonematerials materials, count in parts by weight, by the original including following components
Material is prepared：55~65 parts of polyether-ether-ketone micro mist, 13~17 parts of ptfe micropowder, 7~9 parts of carbon fiber powder, glass powder
2.3~2.7 parts, 3.3~3.7 parts of copper powder, 2.8~3.2 parts of graphite powder, 1.8~2.2 parts of silicon dioxide powder, molybdenum disulphide powder 0.8
~1.2 parts, 2.8~3.2 parts of alicyclic hydrocarbon type solvent, 1.8~2.2 parts of Isopars.It is provided by the invention composite modified poly-
In ether ether ketone material, each component can be merged fully, had synergistic effect between each other, can be made composite modified polyether-ether-ketone material
Material has excellent high temperature resistance and mechanical property.Wherein, the polyether-ether-ketone micro mist and ptfe micropowder are as multiple
The main body of modified polyether ether ketone material is closed, the two can be good at being merged, and form a kind of complementation, make to be prepared answers
It is not in aliquation in follow-up machining process to close modified polyether ether ketone material, and internal structure empty, stomata occurs and influences
Quality of item；The carbon fiber powder can be compound well with the progress of polyether-ether-ketone micro mist, improves composite modified polyether-ether-ketone material
The intensity and wearability of material；The glass powder and copper powder can improve the wearability and creep resistance of composite modified polyetheretherketonematerials materials
Performance；The graphite powder can play self-lubricating function, at the same can also improve composite modified polyetheretherketonematerials materials high temperature resistant,
Wear-resisting property；The silicon dioxide powder can improve the intensity, toughness of composite modified polyetheretherketonematerials materials, while can also improve
Molybdenum disulphide powder described in its transparency can lower the friction coefficient of composite modified polyetheretherketonematerials materials；The alicyclic hydrocarbon type solvent
Ptfe micropowder can be made to be softened with polyether-ether-ketone micro mist inner molecular structure, preferably merged；The isomeric alkane
Hydrocarbon solvent can be such that ptfe micropowder and polyether-ether-ketone micro mist cures, by lighter pressure, both make can with it is other
Raw material preferably squeezes fusion.Embodiment the experimental results showed that, using composite modified polyetheretherketonematerials materials provided by the invention
The heat distortion temperature of the valve sealing ring of preparation is up to 310~315 DEG C, and 280 DEG C of long-term heat resistance index reached, tensile strength reaches
135Mpa, friction coefficient 0.2, linear expansion coefficient 0.30K-1*104 are significantly better than comparative example.
Figure of description
Fig. 1 be raw material is mixed, heat and injection molding used by equipment structural schematic diagram；Figure
1- feed inlets, 2- gas vents, 3- agitator arms, 4- barrels, 5- hydraulic devices, the short circulation roads of 6-, 7- injection pressures mouth, 8- moldings in 1
Mold, 9- motors；
Fig. 2 is the structural schematic diagram that molding materials are sintered with equipment used by sizing；10- air cookings in Fig. 2
Machine, 11- metal belts, 12- oven bodies, 13- smoke exhaust pipes, 14- transmission motor, 15- blank outlets.
Specific implementation mode
The present invention provides a kind of composite modified polyetheretherketonematerials materials, count in parts by weight, by the original including following components
Material is prepared：
55~65 parts of polyether-ether-ketone micro mist, 13~17 parts of ptfe micropowder, 7~9 parts of carbon fiber powder, glass powder 2.3
~2.7 parts, 3.3~3.7 parts of copper powder, 2.8~3.2 parts of graphite powder, 1.8~2.2 parts of silicon dioxide powder, molybdenum disulphide powder 0.8~
1.2 parts, 2.8~3.2 parts of alicyclic hydrocarbon type solvent, 1.8~2.2 parts of Isopars.
Unless otherwise specified, raw material of the present invention is commercial goods well known to those skilled in the art.
In the present invention, it counts in parts by weight, the raw material for preparing the composite modified polyetheretherketonematerials materials includes polyethers ether
55~65 parts, preferably 60 parts of ketone (PEEK) micro mist.In the present invention, the grain size of the polyether-ether-ketone micro mist is preferably 30~50
μm, more preferably 35~45 μm.
In the present invention, on the basis of the weight of the polyether-ether-ketone micro mist, the composite modified polyether-ether-ketone material is prepared
The raw material of material includes 13~17 parts of ptfe micropowder, preferably 15 parts.In the present invention, the ptfe micropowder
Grain size is preferably 35~50 μm, more preferably 40~45 μm.
In the present invention, the polyether-ether-ketone micro mist and ptfe micropowder are as composite modified polyetheretherketonematerials materials
Main body, the two can be good at being merged, and form a kind of complementation, and the composite modified polyetheretherketonematerials materials being prepared is made to exist
Be not in aliquation in follow-up machining process, internal structure empty, stomata occurs and influences quality of item.
In the present invention, on the basis of the weight of the polyether-ether-ketone micro mist, the composite modified polyether-ether-ketone material is prepared
The raw material of material includes 7~9 parts of carbon fiber powder, preferably 8 parts.In the present invention, the filament diameter of the carbon fiber powder is preferably 7
~9 μm, mesh number is preferably 50~100.In the present invention, the carbon fiber powder can carry out multiple well with polyether-ether-ketone micro mist
It closes, improves the intensity and wearability of composite modified polyetheretherketonematerials materials.
In the present invention, on the basis of the weight of the polyether-ether-ketone micro mist, the composite modified polyether-ether-ketone material is prepared
The raw material of material includes 2.3~2.7 parts of glass powder, more preferably 2.5 parts.In the present invention, the filament diameter of the glass powder is excellent
9~13 μm are selected as, mesh number is preferably 300~400.In the present invention, the glass powder can improve composite modified polyether-ether-ketone
The wearability and creep resistance of material.
In the present invention, on the basis of the weight of the polyether-ether-ketone micro mist, the composite modified polyether-ether-ketone material is prepared
The raw material of material includes 3.3~3.7 parts of copper powder, preferably 3.5 parts.In the present invention, the grain size of the copper powder is preferably 3~5 μm.
In the present invention, the copper powder can improve the wearability and creep resistance of composite modified polyetheretherketonematerials materials.
In the present invention, on the basis of the weight of the polyether-ether-ketone micro mist, the composite modified polyether-ether-ketone material is prepared
The raw material of material includes 2.8~3.2 parts of graphite powder, preferably 3 parts.In the present invention, the grain size of the graphite powder be preferably 10~
30 μm, more preferably 15~25 μm.In the present invention, the graphite powder can play self-lubricating function, while can also improve
The high temperature resistant of composite modified polyetheretherketonematerials materials, wear-resisting property.
In the present invention, on the basis of the weight of the polyether-ether-ketone micro mist, the composite modified polyether-ether-ketone material is prepared
The raw material of material includes 1.8~2.2 parts of silicon dioxide powder, preferably 2 parts.In the present invention, the grain size of the silicon dioxide powder is excellent
It is selected as 15~20 μm.In the present invention, the silicon dioxide powder can improve the intensity, tough of composite modified polyetheretherketonematerials materials
Property, while its transparency can also be improved.
In the present invention, on the basis of the weight of the polyether-ether-ketone micro mist, the composite modified polyether-ether-ketone material is prepared
The raw material of material includes 0.8~1.2 part of molybdenum disulphide powder, more preferably 1 part.In the present invention, the grain size of the molybdenum disulphide powder
Preferably 1~5 μm.In the present invention, the molybdenum disulphide powder can lower the friction coefficient of composite modified polyetheretherketonematerials materials.
In the present invention, on the basis of the weight of the polyether-ether-ketone micro mist, the composite modified polyether-ether-ketone material is prepared
The raw material of material includes 2.8~3.2 parts of alicyclic hydrocarbon type solvent, preferably 3 parts.In the present invention, the alicyclic hydrocarbon type solvent is preferred
Including hexamethylene or cyclohexanone.In the present invention, the alicyclic hydrocarbon type solvent can make ptfe micropowder and polyether-ether-ketone
Micro mist inner molecular structure is softened, and is allowed to preferably merge.
In the present invention, on the basis of the weight of the polyether-ether-ketone micro mist, the composite modified polyether-ether-ketone material is prepared
The raw material of material includes 1.8~2.2 parts of Isopars, preferably 2 parts.In the present invention, the Isopars are preferred
For G type Isopars.In the present invention, the Isopars can make ptfe micropowder micro- with polyether-ether-ketone
Powder cures, and ptfe micropowder after curing can make the two and other raw materials more with polyether-ether-ketone micro mist by lighter pressure
Good fusion.
The present invention provides the preparation methods of polyether-ether-ketone micro mist described in above-mentioned technical proposal, include the following steps：
By polyether-ether-ketone micro mist, ptfe micropowder, carbon fiber powder, glass powder, copper powder, graphite powder, silicon dioxide powder,
Heated after molybdenum disulphide powder, alicyclic hydrocarbon type solvent and Isopars mixing, obtains mixes liquid material；
The mixes liquid material is subjected to injection molding, obtains molding materials；
The molding materials are sintered sizing, obtain composite modified polyetheretherketonematerials materials.
The present invention is by polyether-ether-ketone micro mist, ptfe micropowder, carbon fiber powder, glass powder, copper powder, graphite powder, dioxy
Heated after SiClx powder, molybdenum disulphide powder, alicyclic hydrocarbon type solvent and Isopars mixing, obtains mixes liquid object
Material.The charging sequence when present invention mixes raw material does not have special restriction, using arbitrary charging sequence.The present invention couple
In the not special restriction of the mixing, each raw material can be uniformly mixed.In the present invention, the temperature of the heat treatment
Preferably 420 DEG C ± 5 DEG C of degree.In the present invention, the heat treatment can make polyether-ether-ketone micro mist and ptfe micropowder
Reach boiling point to be in a liquid state shape object, is convenient for packing pressure injection moulding.
After obtaining mixes liquid material, the mixes liquid material is carried out injection molding by the present invention, is molded
Material.In the present invention, the pressure of the injection molding is preferably 8~11Mpa, more preferably 9~10Mpa；When pressurize
Between preferably 8~20min, more preferably 10~15min.
In the present invention, when carrying out practical large-scale production, the mixing of raw material, heat treatment and injection molding are excellent
It is selected in equipment shown in FIG. 1 and carries out；1- feed inlets in Fig. 1,2- gas vents, 3- agitator arms, 4- barrels, 5- hydraulic devices,
The short circulation roads of 6-, 7- injection pressures mouth, 8- molding dies, 9- motors.As shown in Figure 1, the feed inlet 1 is arranged at the top of barrel 4,
The gas vent 2 is arranged in the upper end of barrel 4, and the agitator arm 3 is arranged in the inside of barrel 4, and passes through the barrel 4
Top connect with motor 9,4 bottom of the barrel is provided with short circulation road 6, and one end of the short circulation road 6 is provided with hydraulic pressure
Device 5, the other end are provided with injection pressure mouth 7, and the injection pressure mouth 7 is connected to the molding die 8.
In an embodiment of the present invention, raw material mixed using equipment shown in FIG. 1, heated and pressure injection
Molding technological process specifically includes following steps：
Raw material is put into from feed inlet 1 in barrel 4, driving agitator arm 3 by motor 9, persistently stirring is mixed,
The gas generated in whipping process is discharged by gas vent 2, and in whipping process, barrel 4 is persistently overheating to 420 ± 5 DEG C, makes polyethers
Ether micropowder and ptfe micropowder reach boiling point and are in a liquid state shape object into short circulation road 6, are passed through with the thrust of hydraulic device 5
Short circulation road 6 is injected into the forming cavity of molding die 8 through injection nozzle 7 and is molded；After completing injection, pressure injection mouth 7 and molding
Chamber forms packing state and carries out injection molding, allows its natural cooling to be molded, after naturally cooling to normal temperature state, die sinking takes
Sample obtains molding materials.
In the present invention, in order to make the raw material in barrel remain liquid state, when raw material is unexhausted, the temperature of barrel is excellent
Choosing is always held at 420 ± 5 DEG C；Meanwhile graphite powder, copper powder, glass powder, carbon fiber powder, silica in raw material in order to prevent
Powder and molybdenum disulphide powder precipitate under the effect of gravity, influence composite effect, when raw material is unexhausted, are in the temperature of guarantee barrel
While 420 ± 5 DEG C, preferably remains agitator arm and persistently stir.
In the present invention, the short circulation road and pressure injection mouth preferably remain in 420 ± 5 DEG C of temperature constant states, to shorten mixing
Liquid material pressure injection runner, while runner is long when can also prevent mixes liquid material pressure injection operation or temperature is too low, mixing
Liquid material cooling caking, blocks runner or pressure injection mouth.
In the present invention, the thrust of the hydraulic device is preferably 8~11Mpa, more preferably 9~10Mpa.
In the present invention, by the mixes liquid material injection into during forming cavity, the forming cavity preferably remains
In 60~70 DEG C of temperature constant state, to prevent mixes liquid material injection into quickly luming to the cold after forming cavity, material feeding is caused not
, molding effect is influenced, while difficulty is brought to injection molding.
In the present invention, after completing injection, pressure injection mouth forms packing state with forming cavity；The present invention makes slurry by pressurize
Forming cavity is filled completely, meanwhile, keep slurry over-pressed always in cooling procedure, product material compactness is good after cooling and shaping, density
It is well-balanced, ensure the performance of composite modified polyetheretherketonematerials materials.
In the present invention, form removal sampling is completed in shaping mould, before carrying out injection molding next time, preferably in forming cavity
Wall surface even application lubricant grease, mixes liquid material is in the flow resistance of forming cavity, while energy when mainly reducing pressure injection
Enough reduce molding materials and the viscosity for being molded cavity wall, facilitates form removal and sampling.
After obtaining the molding materials, the molding materials are sintered sizing by the present invention, obtain composite modified polyethers
Ether ketone material.In the present invention, the sintering sizing preferably includes the warming-up section, high temperature sintering section and temperature descending section that carry out successively；
The temperature of the warming-up section is preferably 180~280 DEG C；The temperature of the high temperature sintering section is preferably 360~400 DEG C；The drop
The temperature of temperature section is preferably 150~320 DEG C.
In the present invention, when carrying out practical large-scale production, the sintering sizing of the molding materials is preferably shown in Fig. 2
Equipment in carry out；10- hot blast baking machines, 11- metal belts, 12- oven bodies, 13- smoke exhaust pipes, 14- transmission electricity in Fig. 2
Machine, 15- blank outlets.As shown in Fig. 2, drying tunnel includes warming-up section, high temperature sintering section and temperature descending section, institute successively in the oven body 12
It states warming-up section, high temperature sintering section and temperature descending section and has been provided independently from smoke exhaust pipe 13, set in the warming-up section side of the oven body 12
It is equipped with hot blast baking machine 10, the metal belt 11 is driven by transmission motor 14, and molding materials are passed through oven body 12 successively
Warming-up section, high temperature sintering section and temperature descending section, composite modified polyetheretherketonematerials materials are finally obtained by base mouth 15.
In the present invention, the total length of drying tunnel is preferably 20 meters in the oven body, and every 2 meters are 1 cell, amount to 10
Cell, it is specific as follows：
Warming-up section is the 1st~4 cell, and temperature is respectively set as 180 DEG C, 220 DEG C, 260 DEG C, 280 DEG C；The warming-up section
Mainly by molding materials oil and moisture evaporation fall, indeformable prepare for subsequent high temperature sintering.
5~7 cells of high temperature sintering Duan Wei, temperature are respectively set as 360 DEG C, 400 DEG C, 380 DEG C；The high temperature sintering
Section is mainly by molding materials sinter molding, and by high temperature sintering, the material-structure of quenched molding materials improves high temperature resistance
And mechanical property.
Temperature descending section is the 8th~10 cell, and temperature is respectively set as 320 DEG C, 220 DEG C, 150 DEG C；The temperature descending section is main
It is that molding materials slow cooling plastotype is avoided the molding materials quickly cooling after sinter molding from deforming, influences high temperature resistance and mechanical property
Energy.
In the present invention, the transmission speed of the metal belt is preferably 3~8m/min, more preferably 6m/min.
The present invention provides made described in composite modified polyetheretherketonematerials materials or above-mentioned technical proposal described in above-mentioned technical proposal
Application of the composite modified polyetheretherketonematerials materials that Preparation Method is prepared in valve sealing ring.The present invention is for the application
Specific method does not have special restriction, according to actual conditions, the composite modified polyetheretherketonematerials materials being prepared is carried out fine
It is worked into being sized for required valve sealing ring.The present invention does not have the size of the valve sealing ring special limit
It is fixed, using size well known to those skilled in the art；In the present invention, the valve sealing ring is preferably dimensioned to be：
35~150mm of outer circle, 4~12mm of thickness.
Below in conjunction with the embodiment in the present invention, the technical solution in the present invention is clearly and completely described.It is aobvious
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
Embodiment 1
The valve sealing ring for preparing outer circle 35mm, thickness 4mm, includes the following steps：
It counts in parts by weight, by 60 parts of polyether-ether-ketone micro mists (grain size is 30~50 μm), 15 parts of ptfe micropowder (grains
Diameter is 35~50 μm), 8 parts of carbon fiber powders (filament diameter is 7~9 μm, and mesh number is 50~100), (monofilament is straight for 2.5 parts of glass powder
9~13 μm of diameter, mesh number are 300~400), 3.5 parts of copper powders (grain size is 3~5 μm), 3 parts of graphite powders (grain size is 10~30 μm), 2
Part silicon dioxide powder (grain size is 15~20 μm), 1 part of molybdenum disulphide powder (grain size is 1~5 μm), 3 parts of hexamethylenes and 2 parts of G types are different
Structure alkane solvent is put into from feed inlet in barrel, is driven agitator arm persistently to stir by motor and is mixed, whipping process
The gas of middle generation is discharged by gas vent, in whipping process, persistently overheating to 420 ± 5 DEG C of barrel, make polyether-ether-ketone micro mist and
Ptfe micropowder reaches boiling point and is in a liquid state shape object into short circulation road, passes through short circulation with hydraulic device with the thrust of 8Mpa
Road is injected into the forming cavity of molding die through injection nozzle and is molded；After completing injection, pressure injection mouth forms pressurize with forming cavity
State, pressurize 8min allow its natural cooling to be molded, and after naturally cooling to normal temperature state, die sinking sampling obtains molding materials；
The molding materials are placed in oven body to the side for being provided with hot blast baking machine, metal belt is by transmission motor
It drives, with the transmission speed of 6m/min, by the molding materials, by 20 meters of long drying tunnels in oven body, (every 2 meters of the drying tunnel is
1 cell amounts to 10 cells：1st~4 cell is warming-up section, temperature be respectively set as 180 DEG C, 220 DEG C, 260 DEG C, 280
℃；5th~7 cell is high temperature sintering section, and temperature is respectively set as 360 DEG C, 400 DEG C, 380 DEG C；8th~10 cell is drop
Temperature section, temperature are respectively set as 320 DEG C, 220 DEG C, 150 DEG C), composite modified polyetheretherketonematerials materials are finally obtained by base mouth, are carried out
Retrofit obtains valve sealing ring to being sized.
Embodiment 2
Valve sealing ring is prepared according to the method for embodiment 1, the difference is that：Valve sealing ring prepared by embodiment 2
Outer circle 80mm, thickness 8mm；In preparation process, the thrust of hydraulic device is 9Mpa, dwell time 10min, transmission speed are
5m/min。
Embodiment 3
Valve sealing ring is prepared according to the method for embodiment 1, the difference is that：Valve sealing ring prepared by embodiment 3
Outer circle 150mm, thickness 12mm；In preparation process, the thrust of hydraulic device is 10Mpa, dwell time 15min, transmits speed
Degree is 3m/min.
Comparative example 1
Valve sealing ring is prepared according to the method for embodiment 1, the difference is that：Prepare the raw material of the valve sealing ring
In be not added with carbon fiber powder, glass powder, copper powder, graphite powder, silicon dioxide powder and molybdenum disulphide powder.
Embodiment 4
The performance of the valve sealing ring according to method as defined in ISO 527-2 prepared by Examples 1 to 3 and comparative example 1 into
Row measures, and concrete outcome is shown in Table 1.
The performance measurement result of valve sealing ring prepared by 1 Examples 1 to 3 of table and comparative example 1
As shown in Table 1, compared with the valve sealing ring that comparative example 1 provides, using composite modified polyethers provided by the invention
The valve sealing ring of ether ketone material preparation has excellent high temperature resistance and mechanical property, can improve the valve sealing ring
Service life.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of composite modified polyetheretherketonematerials materials, are counted in parts by weight, it is prepared by the raw material including following components：
55~65 parts of polyether-ether-ketone micro mist, 13~17 parts of ptfe micropowder, 7~9 parts of carbon fiber powder, glass powder 2.3~2.7
Part, 3.3~3.7 parts of copper powder, 2.8~3.2 parts of graphite powder, 1.8~2.2 parts of silicon dioxide powder, 0.8~1.2 part of molybdenum disulphide powder,
2.8~3.2 parts of alicyclic hydrocarbon type solvent, 1.8~2.2 parts of Isopars.
2. composite modified polyetheretherketonematerials materials according to claim 1, which is characterized in that the monofilament of the carbon fiber powder is straight
Diameter is 7~9 μm, and mesh number is 50~100.
3. composite modified polyetheretherketonematerials materials according to claim 1, which is characterized in that the filament diameter of the glass powder
9~13 μm, mesh number is 300~400.
4. composite modified polyetheretherketonematerials materials according to claim 1, which is characterized in that the grain size of the copper powder is 3~5
μm。
5. composite modified polyetheretherketonematerials materials according to claim 1, which is characterized in that the grain size of the graphite powder is 10
~30 μm.
6. the preparation method of any one of Claims 1 to 5 composite modified polyetheretherketonematerials materials, includes the following steps：
By polyether-ether-ketone micro mist, ptfe micropowder, carbon fiber powder, glass powder, copper powder, graphite powder, silicon dioxide powder, two sulphur
Heated after changing molybdenum powder, alicyclic hydrocarbon type solvent and Isopars mixing, obtains mixes liquid material；
The mixes liquid material is subjected to injection molding, obtains molding materials；
The molding materials are sintered sizing, obtain composite modified polyetheretherketonematerials materials.
7. preparation method according to claim 6, which is characterized in that the temperature of the heat treatment is 420 DEG C ± 5 DEG C.
8. preparation method according to claim 6, which is characterized in that the pressure of the injection molding be 8~
11Mpa；Dwell time is 8~20min.
9. preparation method according to claim 6, which is characterized in that the sintering sizing includes the heating carried out successively
Section, high temperature sintering section and temperature descending section；The temperature of the warming-up section is 180~280 DEG C；The temperature of the high temperature sintering section is 360
~400 DEG C；The temperature of the temperature descending section is 150~320 DEG C.
10. the preparation of any one of any one of Claims 1 to 5 composite modified polyetheretherketonematerials materials or claim 6~9
Application of the composite modified polyetheretherketonematerials materials that method is prepared in valve sealing ring.
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Effective date of registration: 20181207 Address after: 325000 Tantou Village, Yongzhong, Longwan District, Wenzhou City, Zhejiang Province Applicant after: Special valve Co., Ltd. Address before: 325000 Anle Road, Anxia Village, Louqiao Street, Ouhai District, Wenzhou City, Zhejiang Province Applicant before: Chen Lichuan |
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