CN104387767A - Ceramic fiber reinforced nylon 66(PA66) composite and preparation method thereof - Google Patents
Ceramic fiber reinforced nylon 66(PA66) composite and preparation method thereof Download PDFInfo
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- CN104387767A CN104387767A CN201410789320.XA CN201410789320A CN104387767A CN 104387767 A CN104387767 A CN 104387767A CN 201410789320 A CN201410789320 A CN 201410789320A CN 104387767 A CN104387767 A CN 104387767A
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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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention provides a ceramic fiber reinforced nylon 66 (PA66) composite and a preparation method thereof. The composite consists of the following components in percentage by weight: 30-40% of nylon 6(PA6), 32-50% of nylon 66(PA66), 10-30% of ceramic fibers, 0.01-2% of a compatilizer, 0.01-2% of a heat stabilizer, 0.01-2% of a light stabilizer, 0.01-2% of a processing aid, and 0.01-0.5% of a dispersing agent. According to the invention, by adopting the ceramic fiber reinforced nylon 66 (PA66) composite, an obtained material not only has excellent thermal oxidizing aging resistance, but also has a good mechanical property and a low warping property, and the application requirements of a hood cover of an automobile engine can be satisfied.
Description
Technical field
The present invention relates to a kind of ceramic fiber reinforced PA66 (PA66) mixture and preparation method thereof, belong to macromolecular material and forming process field thereof.
Background technology
In automobile industry, the cry that national energy-saving reduces discharging is more and more higher, and the emission reduction effect that automotive light weight technology brings more and more obtains the concern of people, and various high performance macromolecular material is widely used in the process of automotive light weight technology.The operating mode environment for use of motor car engine periphery is relatively more severe, and to the physical and mechanical properties of material, long-term heat resistance energy, oil-proofness, dimensional stability has higher requirement.
Nylon66 fiber (PA66) is because of the amide group (-CONH-) containing stronger polarity on its molecular chain, the hydrogen bond formed between its group makes the structure of PA66 be easy to crystallization, thus make material have good mechanical performance, self lubricity, use temperature is wide, electrical insulating property is good, oil-proofness chemical stability is good, be easy to the features such as processing, thus be widely used at all fields of national economy, as automobile component, high-speed railway fastener, the mechanical part of the various high loadinies such as the cam of gear, automatic stamper.But pure nylon also exists obvious defect, as products machinery intensity difference, product size poor stability, flame retardant properties is general, and for this reason, in prior art, conventional glass fibre carries out enhancing modified to nylon66 fiber.After fiberglass reinforced modification, can significantly improve its mechanical mechanics property, heat resisting temperature, wear resistance, but after weak point is through fiberglass reinforced modification, because glass is in flow process, be easy to produce orientation, thus cause melt in flow direction and perpendicular flow direction, produce buckling deformation because shrinking the inconsistent part that causes, and the oxidation and heat resistant property of the Nylon 66 of fiberglass reinforced is not still well positioned to meet the demand of real world applications.
Ceramic fiber is a kind of fibrous light refractory materials integrating conventional insulation material, refractory materials premium properties, and its diameter is generally 2 μm ~ 5 μm, and length mostly is 30mm ~ 250mm, and fiber surface is smooth cylindrical, and cross section is normally circular.Its constructional feature is void content high (being generally greater than 90%), and air vent aperture and specific surface area large.The said structure of ceramic fiber, ceramic fiber is made to have excellent heat-proof quality and less volume density compared with glass fibre, be used for industry insulation, sealing, the insulation of protective material, electric heating device, lagging material, the insulation of plant and instrument, electrical heating element and heat insulation material, automobile industry lagging material etc.
There is the problems such as bad, the easy generation buckling deformation of oxidation and heat resistant property after effectively solving nylon66 fiber fiberglass reinforced, the art of this patent adopts the mode adding ceramic fiber and each analog assistant to improve, ceramic fiber and the two of processing aid add, the reinforcement of composition, and it is complementary in performance between Nylon 66, show spatial complementary effect, ceramic fiber is changed in nylon resin, effective heatproof air aging performance and that resist warping deformability improving material gradually by anisotropy.
In addition, patented technology of the present invention, on the basis of adding ceramic fiber and this area conventional adjuvants, adds a small amount of dispersion agent, to reduce the balling ratio of ceramic fiber, improves the uniformly dispersed of ceramic fiber, ensures the continous-stable of material over-all properties.
Summary of the invention
The object of this invention is to provide a kind of ceramic fiber reinforced PA66 (PA66) mixture and preparation method thereof, to overcome the defect that prior art exists.
In order to achieve the above object, the invention provides a kind of ceramic fiber reinforced PA66 (PA66) mixture, be made up of following component by weight percentage:
The weight percentage sum of described each component is 100%.
Preferably, the ceramic fiber processed is carried out in described ceramic fiber employing through composite coupler;
Described composite coupler component is phosphate coupling agent, silane coupling agent and glycidyl ester, and the mass ratio of above-mentioned three is 20-40:35-55:5-25;
Described a kind of ceramic fiber reinforced PA66 (PA66) mixture, is characterized in that: described phosphate coupling agent is chelating type tetra-sodium titanate coupling agent;
Described silane coupling agent is vinyltriethoxysilane;
Described glycidyl ester is isocyanuric acid three-glycidyl ester;
Described composite coupler consumption is for being 0.5 ~ 1.5% based on ceramic fiber weight.
Preferably, the method of described composite coupler process ceramic fiber is as follows: first mixed by proportioning by the treatment agents such as phosphate coupling agent, silane coupling agent, glycidyl ester and be positioned in treatment trough, ceramic fiber after wire drawing process is flooded 5 ~ 10 seconds by the composite treating agent in treatment trough, obtains the ceramic fiber of required modification.
Preferably, described ceramic fiber is the ceramic fiber of high temperature (HT) type, Fibre diameter 2 ~ 4 microns.
Preferably, described compatilizer is selected from one or its mixture of ethylene-acrylate-maleic anhydride terpolymer, linear low density polyethylene grafted maleic anhydride, ethylene-octene copolymer grafted maleic anhydride etc.
Preferably, described thermo-stabilizer is at least one in diphenyl-para-phenylene diamine, 4-hydroxyoctadecanoic anilide, triphenyl phosphite, the pungent diphenyl ester of phosphorous acid and Tyox B.
Preferably, described photostabilizer is the mixture of hindered amine light stabilizer and UV light absorber.
Preferably, described processing aid is selected from the mixture of one or more in low molecule ester class, metal soap, stearic acid complex ester class, amides etc.
Preferably, described dispersion agent is selected from Vltra tears (HPMC), the one in polyacrylamide (PAM) or composition.
The preparation method of a kind of ceramic fiber reinforced PA66 (PA66) mixture of the present invention, concrete steps are as follows:
(1) PA6, PA66 and coupling agent, fire retardant, compatilizer, thermo-stabilizer, oxidation inhibitor, dispersion agent are fully mixed in advance in high speed mixer;
(2) above-mentioned miscellany is added length-to-diameter ratio is 32:1 ~ 40:1, extrusion temperature is 180-240 DEG C, rotating speed is in the Strong shear twin screw extruder of 350-450rpm, its expressing technique each district temperature range is 200 ~ 240 DEG C, residence time 1-2 minute, pressure is 12-18Mpa;
(3) in extrusion, ceramic fiber is evenly added by the accurate feed system metering of side direction, obtains the finished product after extruding tie rod, cooling, pelletizing, drying.
Product of the present invention, had both had good physical and mechanical property, had again the features such as high heat-resisting, low buckling deformation, high rigidity simultaneously; The service requirements of automobile engine cover and electronic component based article can be met; Reinforced Nylon mixture containing ceramic fiber of the present invention, adopts twin-screw extrusion equipment, have flow process simple, continuously, the advantage of high, the constant product quality of production efficiency.
After testing, tensile strength >=130MPa, flexural strength >=190MPa, modulus in flexure >=7200MPa, notched Izod impact strength (23 DEG C) >=10KJ/m2, notched Izod impact strength (-30 DEG C) >=4.5KJ/m2, heat-drawn wire (1.82MPa) >=195 DEG C.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
(1) 39.5 kilograms of nylon, 6,50 kilograms of nylon66 fiber, 0.1 kilogram of compatilizer ethylene-acrylate-maleic anhydride terpolymer, 0.1 kilogram of thermo-stabilizer diphenyl-para-phenylene diamine, 0.1 kilogram of hindered amine light stabilizer, 0.1 kilogram of UV light absorber, 0.1 kilogram of processing aid EBS, 0.1 kilogram of dispersion agent HPMC are fully mixed 3.5min in advance in high speed mixer;
(2) starting material of mixing are placed in length-to-diameter ratio be the twin screw extruder of 40:1 through melt extruding, granulation, its expressing technique is 200 ~ 210 DEG C, a district, two 220 ~ 230 DEG C, districts, three 230 ~ 240 DEG C, districts, four 215 ~ 225 DEG C, districts, residence time 1-2 minute, pressure is 12-18Mpa;
(3) in extrusion, 10 kilograms of ceramic fibers are evenly added by the accurate feed system metering of side direction, after extruding tie rod, cooling, pelletizing, drying, obtains the finished product.
Test its performance by respective standard, be listed as follows:
| Test event | Unit | Testing standard | Test result |
| Tensile strength | MPa | ISO 527-2 | 131 |
| Flexural strength | MPa | ISO 178 | 192 |
| Modulus in flexure | MPa | ISO 178 | 7350 |
| Shock strength 23 DEG C | KJ/m 2 | ISO 180 | 10.5 |
| Shock strength-30 DEG C | KJ/m 2 | ISO 180 | 5.1 |
| Heat-drawn wire 1.82MPa | ℃ | ISO 75-1 | 196 |
Embodiment 2
(1) by 37 kilograms of nylon 6, 46.3 kilogram nylon66 fiber, 0.2 kilogram of compatilizer ethylene-acrylate-maleic anhydride terpolymer, 0.2 kilogram of compatilizer ethylene-octene copolymer grafted maleic anhydride, 0.2 kilogram of thermo-stabilizer Tyox B, 0.2 kilogram of thermo-stabilizer diphenyl-para-phenylene diamine, 0.2 kilogram of hindered amine light stabilizer, 0.2 kilogram of UV light absorber, 0.5 kilogram of processing aid EBS, 0.2 kilogram of dispersion agent HPMC fully mixes 3.5min in advance in high speed mixer,
(2) starting material of mixing are placed in length-to-diameter ratio be the twin screw extruder of 40:1 through melt extruding, granulation, its expressing technique is 200 ~ 210 DEG C, a district, two 220 ~ 230 DEG C, districts, three 230 ~ 240 DEG C, districts, four 215 ~ 225 DEG C, districts, residence time 1-2 minute, pressure is 12-18Mpa;
(3) in extrusion, 15 kilograms of ceramic fibers are evenly added by the accurate feed system metering of side direction, after extruding tie rod, cooling, pelletizing, drying, obtains the finished product.
Test its performance by respective standard, be listed as follows:
| Test event | Unit | Testing standard | Test result |
| Tensile strength | MPa | ISO 527-2 | 135 |
| Flexural strength | MPa | ISO 178 | 199 |
| Modulus in flexure | MPa | ISO 178 | 7550 |
| Shock strength 23 DEG C | KJ/m 2 | ISO 180 | 11.5 |
| Shock strength-30 DEG C | KJ/m 2 | ISO 180 | 5.8 |
| Heat-drawn wire 1.82MPa | ℃ | ISO 75-1 | 198 |
Embodiment 3
(1) by 35 kilograms of nylon 6, 41 kilograms of nylon66 fiber, 0.5 kilogram of compatilizer ethylene-acrylate-maleic anhydride terpolymer, 0.5 kilogram of compatilizer ethylene-octene copolymer grafted maleic anhydride, 0.5 kilogram of thermo-stabilizer Tyox B, 0.5 kilogram of thermo-stabilizer diphenyl-para-phenylene diamine, 0.5 kilogram of hindered amine light stabilizer, 0.5 kilogram of UV light absorber, 1 kilogram of processing aid EBS, 0.3 kilogram of dispersion agent HPMC fully mixes 3.5min in advance in high speed mixer,
(2) starting material of mixing are placed in length-to-diameter ratio be the twin screw extruder of 40:1 through melt extruding, granulation, its expressing technique is 200 ~ 210 DEG C, a district, two 220 ~ 230 DEG C, districts, three 230 ~ 240 DEG C, districts, four 215 ~ 225 DEG C, districts, residence time 1-2 minute, pressure is 12-18Mpa;
(3) in extrusion, 20 kilograms of ceramic fibers are evenly added by the accurate feed system metering of side direction, after extruding tie rod, cooling, pelletizing, drying, obtains the finished product.
Test its performance by respective standard, be listed as follows:
| Test event | Unit | Testing standard | Test result |
| Tensile strength | MPa | ISO 527-2 | 144 |
| Flexural strength | MPa | ISO 178 | 215 |
| Modulus in flexure | MPa | ISO 178 | 7850 |
| Shock strength 23 DEG C | KJ/m 2 | ISO 180 | 13.4 |
| Shock strength-30 DEG C | KJ/m 2 | ISO 180 | 6.9 |
| Heat-drawn wire 1.82MPa | ℃ | ISO 75-1 | 202 |
Embodiment 4
(1) by 32.7 kilograms of nylon 6, 36 kilograms of nylon66 fiber, 0.8 kilogram of compatilizer ethylene-acrylate-maleic anhydride terpolymer, 0.8 kilogram of compatilizer ethylene-octene copolymer grafted maleic anhydride, 0.8 kilogram of thermo-stabilizer Tyox B, 0.8 kilogram of thermo-stabilizer diphenyl-para-phenylene diamine, 0.8 kilogram of hindered amine light stabilizer, 0.8 kilogram of UV light absorber, 1.5 kilograms of processing aid EBS, 0.4 kilogram of dispersion agent HPMC fully mixes 3.5min in advance in high speed mixer,
(2) starting material of mixing are placed in length-to-diameter ratio be the twin screw extruder of 40:1 through melt extruding, granulation, its expressing technique is 200 ~ 210 DEG C, a district, two 220 ~ 230 DEG C, districts, three 230 ~ 240 DEG C, districts, four 215 ~ 225 DEG C, districts, residence time 1-2 minute, pressure is 12-18Mpa;
(3) in extrusion, 25 kilograms of ceramic fibers are evenly added by the accurate feed system metering of side direction, after extruding tie rod, cooling, pelletizing, drying, obtains the finished product.
Test its performance by respective standard, be listed as follows:
| Test event | Unit | Testing standard | Test result |
| Tensile strength | MPa | ISO 527-2 | 155 |
| Flexural strength | MPa | ISO 178 | 221 |
| Modulus in flexure | MPa | ISO 178 | 8050 |
| Shock strength 23 DEG C | KJ/m 2 | ISO 180 | 14.5 |
| Shock strength-30 DEG C | KJ/m 2 | ISO 180 | 7.4 |
| Heat-drawn wire 1.82MPa | ℃ | ISO 75-1 | 208 |
Embodiment 5
(1) 30 kilograms of nylon, 6,32 kilograms of nylon66 fiber, 1 kilogram of compatilizer ethylene-acrylate-maleic anhydride terpolymer, 1 kilogram of compatilizer ethylene-octene copolymer grafted maleic anhydride, 1 kilogram of thermo-stabilizer Tyox B, 1 kilogram of thermo-stabilizer diphenyl-para-phenylene diamine, 1 kilogram of hindered amine light stabilizer, 1 kilogram of UV light absorber, 2 kilograms of processing aid EBS, 0.5 kilogram of dispersion agent HPMC are fully mixed 3.5min in advance in high speed mixer;
(2) starting material of mixing are placed in length-to-diameter ratio be the twin screw extruder of 40:1 through melt extruding, granulation, its expressing technique is 200 ~ 210 DEG C, a district, two 220 ~ 230 DEG C, districts, three 230 ~ 240 DEG C, districts, four 215 ~ 225 DEG C, districts, residence time 1-2 minute, pressure is 12-18Mpa;
(3) in extrusion, 30 kilograms of ceramic fibers are evenly added by the accurate feed system metering of side direction, after extruding tie rod, cooling, pelletizing, drying, obtains the finished product.
Test its performance by respective standard, be listed as follows:
| Test event | Unit | Testing standard | Test result |
| Tensile strength | MPa | ISO 527-2 | 168 |
| Flexural strength | MPa | ISO 178 | 235 |
| Modulus in flexure | MPa | ISO 178 | 8250 |
| Shock strength 23 DEG C | KJ/m 2 | ISO 180 | 15.9 |
| Shock strength-30 DEG C | KJ/m 2 | ISO 180 | 8.4 |
| Heat-drawn wire 1.82MPa | ℃ | ISO 75-1 | 213 |
From above-described embodiment 1 ~ 5, a kind of ceramic fiber reinforced PA66 mechanical property of the present invention and heat-drawn wire all strengthen with the increase of ceramic fiber add-on, this is because the modulus of ceramic fiber own and heat-proof quality all higher, through with polymer blended after, also improve high-modulus performance and the heat-drawn wire of alloy material.
Comparative example 1
(1) 39.5 kilograms of nylon, 6,50 kilograms of nylon66 fiber, 0.1 kilogram of ethylene-acrylate-maleic anhydride terpolymer, 0.1 kilogram of diphenyl-para-phenylene diamine, 0.1 kilogram of hindered amine light stabilizer, 0.1 kilogram of UV light absorber, 0.1 kilogram of processing aid EBS, 0.1 kilogram of dispersion agent HPMC are fully mixed 3.5min in advance in high speed mixer;
(2) starting material of mixing are placed in length-to-diameter ratio be the twin screw extruder of 40:1 through melt extruding, granulation, its expressing technique is 200 ~ 210 DEG C, a district, two 220 ~ 230 DEG C, districts, three 230 ~ 240 DEG C, districts, four 215 ~ 225 DEG C, districts, residence time 1-2 minute, pressure is 12-18Mpa;
(3) in extrusion, 18 kilograms of glass fibre are evenly added by the accurate feed system metering of side direction, after extruding tie rod, cooling, pelletizing, drying, obtains the finished product.
Test its performance by respective standard, be listed as follows:
| Test event | Unit | Testing standard | Test result |
| Tensile strength | MPa | ISO 527-2 | 130 |
| Flexural strength | MPa | ISO 178 | 192 |
| Modulus in flexure | MPa | ISO 178 | 7250 |
| Shock strength 23 DEG C | KJ/m 2 | ISO 180 | 10.3 |
| Shock strength-30 DEG C | KJ/m 2 | ISO 180 | 5.2 |
| Heat-drawn wire 1.82MPa | ℃ | ISO 75-1 | 195 |
From above-described embodiment 1 compared with documents 1, under the same conditions, the bad mechanical property of the nylon66 fiber comparatively strengthened with 10 kilograms of ceramic fibers with the nylon66 fiber of 15 kilograms of glass fiber reinforcement and heat-drawn wire is low, this is because comparatively ceramic fiber comparatively glass fibre there is more high-modulus performance and heat-proof quality, through with polymer blended after, also improve high-modulus performance and the heat-drawn wire of alloy material.
Comparative example 2
(1) 39.5 kilograms of nylon, 6,50 kilograms of nylon66 fiber, 18 kilograms of ceramic fibers, 0.1 kilogram of ethylene-acrylate-maleic anhydride terpolymer, 0.1 kilogram of diphenyl-para-phenylene diamine, 0.1 kilogram of hindered amine light stabilizer, 0.1 kilogram of UV light absorber, 0.1 kilogram of processing aid EBS are fully mixed 3.5min in advance in high speed mixer;
(2) starting material of mixing are placed in length-to-diameter ratio be the twin screw extruder of 40:1 through melt extruding, granulation, its expressing technique is 200 ~ 210 DEG C, a district, two 220 ~ 230 DEG C, districts, three 230 ~ 240 DEG C, districts, four 215 ~ 225 DEG C, districts, residence time 1-2 minute, pressure is 12-18Mpa;
(3) in extrusion, 18 kilograms of ceramic fibers are evenly added by the accurate feed system metering of side direction, after extruding tie rod, cooling, pelletizing, drying, obtains the finished product.
Test its performance by respective standard, be listed as follows:
| Test event | Unit | Testing standard | Test result |
| Tensile strength | MPa | ISO 527-2 | 128 |
| Flexural strength | MPa | ISO 178 | 185 |
| Modulus in flexure | MPa | ISO 178 | 7250 |
| Shock strength 23 DEG C | KJ/m 2 | ISO 180 | 9.8 |
| Shock strength-30 DEG C | KJ/m 2 | ISO 180 | 4.9 |
| Heat-drawn wire 1.82MPa | ℃ | ISO 75-1 | 195 |
Embodiment 1 is compared with comparative example 2, under the same conditions, the mechanical property adding the nylon66 fiber that ceramic fiber is strengthened of dispersion agent is more excellent, this is because dispersion agent add the balling ratio that can reduce ceramic fiber, improve the uniformly dispersed of ceramic fiber, then improve the performance of material each side, and ensure the continous-stable of material over-all properties.
Claims (10)
1. ceramic fiber reinforced PA66 (PA66) mixture, is characterized in that, is made up of following component by weight percentage:
The weight percentage sum of described each component is 100%.
2. a kind of ceramic fiber reinforced PA66 (PA66) mixture as claimed in claim 1, is characterized in that, the ceramic fiber processed is carried out in described ceramic fiber employing through composite coupler;
Described composite coupler component is phosphate coupling agent, silane coupling agent and glycidyl ester, and the mass ratio of above-mentioned three is 20-40:35-55:5-25;
Described a kind of ceramic fiber reinforced PA66 (PA66) mixture, is characterized in that: described phosphate coupling agent is chelating type tetra-sodium titanate coupling agent;
Described silane coupling agent is vinyltriethoxysilane;
Described glycidyl ester is isocyanuric acid three-glycidyl ester;
Described composite coupler consumption is for being 0.5 ~ 1.5% based on ceramic fiber weight.
3. a kind of ceramic fiber reinforced PA66 (PA66) mixture according to claim 2, it is characterized in that: the method for described composite coupler process ceramic fiber is as follows: first the treatment agents such as phosphate coupling agent, silane coupling agent, glycidyl ester mixed by proportioning and be positioned in treatment trough, ceramic fiber after wire drawing process is flooded 5 ~ 10 seconds by the composite treating agent in treatment trough, obtains the ceramic fiber of required modification.
4. a kind of ceramic fiber reinforced PA66 (PA66) mixture according to claim 1, is characterized in that: described ceramic fiber is the ceramic fiber of high temperature (HT) type, Fibre diameter 2 ~ 4 microns.
5. a kind of ceramic fiber reinforced PA66 (PA66) mixture according to claim 1, is characterized in that: described compatilizer is selected from one or its mixture of ethylene-acrylate-maleic anhydride terpolymer, linear low density polyethylene grafted maleic anhydride, ethylene-octene copolymer grafted maleic anhydride etc.
6. a kind of ceramic fiber reinforced PA66 (PA66) mixture according to claim 1, is characterized in that: described thermo-stabilizer is at least one in diphenyl-para-phenylene diamine, 4-hydroxyoctadecanoic anilide, triphenyl phosphite, the pungent diphenyl ester of phosphorous acid and Tyox B.
7. a kind of ceramic fiber reinforced PA66 (PA66) mixture according to claim 1, is characterized in that: described photostabilizer is the mixture of hindered amine light stabilizer and UV light absorber.
8. a kind of ceramic fiber reinforced PA66 (PA66) mixture according to claim 1, is characterized in that: described processing aid is selected from the mixture of one or more in low molecule ester class, metal soap, stearic acid complex ester class, amides etc.
9. a kind of ceramic fiber reinforced PA66 (PA66) mixture according to claim 1, it is characterized in that: described dispersion agent is selected from Vltra tears (HPMC), the one in polyacrylamide (PAM) or composition.
10. the preparation method of a kind of ceramic fiber reinforced PA66 (PA66) mixture according to claim 1, it is characterized in that, concrete steps are as follows:
(1) PA6, PA66 and coupling agent, fire retardant, compatilizer, thermo-stabilizer, oxidation inhibitor, dispersion agent are fully mixed in advance in high speed mixer;
(2) above-mentioned miscellany is added length-to-diameter ratio is 32:1 ~ 40:1, extrusion temperature is 180-240 DEG C, rotating speed is in the Strong shear twin screw extruder of 350-450rpm, its expressing technique each district temperature range is 200 ~ 240 DEG C, residence time 1-2 minute, pressure is 12-18Mpa;
(3) in extrusion, ceramic fiber is evenly added by the accurate feed system metering of side direction, obtains the finished product after extruding tie rod, cooling, pelletizing, drying.
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| CN104845362A (en) * | 2015-06-03 | 2015-08-19 | 苏州靖羽新材料有限公司 | Toughened nylon material and preparation method thereof |
| CN105754192A (en) * | 2016-04-22 | 2016-07-13 | 柳州蓓蒂芬科技有限公司 | Fibrous composite material |
| CN109836819A (en) * | 2019-02-20 | 2019-06-04 | 广东龙道新材料有限公司 | Unmanned vehicle nylon new material |
| CN110885554A (en) * | 2019-12-18 | 2020-03-17 | 宁波华腾首研新材料有限公司 | Nylon 66 composite material and preparation method and application thereof |
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| CN102276977A (en) * | 2011-06-10 | 2011-12-14 | 东莞劲胜精密组件股份有限公司 | High-performance anti-warping nylon material and preparation method thereof |
| CN102732012A (en) * | 2012-06-15 | 2012-10-17 | 苏州宇度医疗器械有限责任公司 | Silicon carbide reinforced nylon composite material |
| CN102732016A (en) * | 2012-06-15 | 2012-10-17 | 苏州宇度医疗器械有限责任公司 | Preparation method for silicon carbide reinforced nylon composite |
| CN103059565A (en) * | 2013-01-25 | 2013-04-24 | 本松工程塑料（杭州）有限公司 | Heat-conducting nylon composite material, preparation method and application thereof |
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| CN105754192A (en) * | 2016-04-22 | 2016-07-13 | 柳州蓓蒂芬科技有限公司 | Fibrous composite material |
| CN109836819A (en) * | 2019-02-20 | 2019-06-04 | 广东龙道新材料有限公司 | Unmanned vehicle nylon new material |
| CN110885554A (en) * | 2019-12-18 | 2020-03-17 | 宁波华腾首研新材料有限公司 | Nylon 66 composite material and preparation method and application thereof |
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