CN105462239A - Glass fiber reinforced nylon material for rail and preparation method of glass fiber reinforced nylon material - Google Patents
Glass fiber reinforced nylon material for rail and preparation method of glass fiber reinforced nylon material Download PDFInfo
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- CN105462239A CN105462239A CN201610003269.4A CN201610003269A CN105462239A CN 105462239 A CN105462239 A CN 105462239A CN 201610003269 A CN201610003269 A CN 201610003269A CN 105462239 A CN105462239 A CN 105462239A
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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
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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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- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
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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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
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Abstract
The invention discloses a glass fiber reinforced nylon material for a rail and a preparation method of the glass fiber reinforced nylon material. The glass fiber reinforced nylon material is prepared from, by weight, 52-67 parts of copolymer nylon resin, 30-35 parts of glass fibers, 2-8 parts of flexibilizer, 1-5 parts of plasticizer, 0.1-0.5 part of binder, 0.1-0.6 part of heat stabilizer, 0.1-1 part of antioxidant and 0.1-1 part of a lubricating agent, according to the glass fiber reinforced nylon material for the rail and the preparation method of the glass fiber reinforced nylon material, the preparation process is consistent with that of conventional reinforced nylon, no special requirement for equipment exists, the fatigue resistance of the material is improved by selecting proper matrix resin and auxiliaries, the glass fibers are evenly distributed in the nylon resin and are good in interface bonding with the matrix resin, the mechanical property and machining property are excellent, excellent fatigue resistance is achieved when the glass fiber reinforced nylon material is used for a rail fastener system plastic piece, and a fatigue resistance test can be passed through.
Description
Technical field
The present invention relates to technical field of polymer materials, be specifically related to a kind of track antifatigue glass fiber reinforced nylon material and preparation method thereof.
Background technology
Nylon material as a kind of excellent engineering plastics because it has the excellent mechanical property such as tensile property, bending property, compressive strength, and low-temperature performance is excellent, stable chemical performance, satisfactory mechanical property, electrical insulation capability are superior, proportion is little, easy machine-shaping, wear resistance are good, is widely used in automobile, electronic apparatus, chemical industry, mechanical device instrument, building trade etc.
But the shortcomings such as water-absorbent is large, poor dimensional stability that it also exists, make its range of application receive certain restriction.For improving above-mentioned shortcoming, and better meeting the requirement to use properties, can be achieved by fiber reinforcement.So far, existing multiple fiber is used for Reinforced Nylon material.Chinese patent CN104387767A discloses a kind of ceramic fiber reinforced PA66 mixture and preparation method thereof, resulting materials has excellent thermo oxidative aging performance, good mechanical property and low warpage properties energy, can meet the application requiring of automobile engine cover; Chinese patent CN104672889A discloses a kind of carbon fiber reinforced nylon matrix material and preparation method, resulting materials excellent in mechanical performance, and wear resistance is good; Chinese patent CN104610717A discloses a kind of Nylon-66 reinforced with glass fiber matrix material, and resulting materials has the advantages that Young's modulus is higher, modulus in flexure is higher, tensile strength is higher, flexural strength is higher and notched Izod impact strength is higher; Chinese patent CN104231611A discloses a kind of content of glass fiber can up to the glass fibre reinforced nylon material of 70wt.%, and material has excellent thermotolerance sex change energy, stretch-proof performance, shock resistance and very high flexural strength and modulus.
But, in all kinds of fiber reinforced nylon composite material, glass fibre reinforced nylon material due to cheap, intensity is higher and obtain and study widely, and to be applied by a large amount of.Along with glass fiber reinforced nylon material Application Areas expands gradually, applied environment is day by day harsh, and the Reinforced Nylon material with different qualities is come out one after another.Chinese patent CN104277454A discloses a kind of preparation method of high glow-wire HI high impact weather-resistance flame-retardant reinforced nylon 6, resulting materials glowing filament flammability index GWFI960 DEG C, glowing filament ignition temperature GWIT900 DEG C, tensile strength 120MPa, flexural strength 220MPa, Izod notched impact strength 13KJ/m
2, flame retardant properties 1.6mm, UL94V0, weather resistance (500h), color grade 3-4 level; Chinese patent CN104861649A discloses high-temperature-resnylont nylont material under a kind of high humidity high-pressure environment and preparation method thereof, the temperature tolerance of resulting materials under high humidity high-pressure environment is obviously better than alkali free glass fibre reinforced PA66, and its excellent processing characteristics and mechanical property extend the application of nylon in high-end fields such as very harsh medical instrument, electronic apparatus and the motor car engines of environment for use greatly; Chinese patent CN104629347A discloses a kind of resistance to ageing of metal Reinforced Nylon material and preparation method thereof, and resulting materials has significant anti-copper evil effect and higher intensity; Chinese patent CN104387766A discloses a kind of glass fiber reinforced PA66 mixture of low temperature resistant high transparency, resulting materials is not when adding toughner, the physicalies such as its tensile yield strength, flexural strength, IZOD notched Izod impact strength all can meet or exceed properties when being added with toughner, and transparency is good, the demand of world today people for plastics outward appearance can be met; Chinese patent CN104774459A discloses a kind of HI high impact environment friendly halogen-free fireproof Reinforced Nylon material and preparation method thereof, with low cost, the anti-electric-arc ability of resulting materials is strong, color controllable and injection moulding time stable and reliable product quality.
But when glass fiber reinforced nylon material is used as structural part, as during for rail clip system plastic component, as structural part, the security of its resistance to fatigue and its work-ing life and use is closely related.But it is relatively less about the research and development of antifatigue glass fiber reinforced nylon material at present, disclosed data display mainly contains 3 kinds of methods: Chinese patent CN103408927A is by first carrying out blending by glass fibre and polyimide fiber, for Reinforced Nylon material after silane coupling agent surface treatment, obtain the conjugated fibre Reinforced Nylon material that a kind of intensity is large, good stability, fatigue resistance are high; Chinese patent CN102093705A discloses one with PA6 or PA66 for matrix resin, and high antifatigue Reinforced Nylon material prepared by the oxidation inhibitor that interpolation is suitable for, lubricant, nucleator, is mainly used in motor car engine peripheral component; Chinese patent CN104004354A adopts a kind of novel injection molding forming method, carries out shaping by meticulous control injection molding process to long glass fiber reinforced nylon material, and the antifatigue power of products obtained therefrom improves, and extends the work-ing life of product.
In method about existing raising fatigue performance: in the method that Chinese patent CN103408927A adopts, polyimide price is more expensive, and with glass fibre carry out blending, after make production process complicated, loaded down with trivial details through silane coupler modified process; The matrix resin of Chinese patent CN102093705A is only limitted to PA6 or PA66, and is mainly used in motor car engine peripheral component; Chinese patent CN104004354A be applicable to long glass fiber reinforced nylon material and exist peel off risk, higher and need to improve existing installation to the requirement of equipment.
Summary of the invention
In view of this, the object of the invention is to propose a kind of track glass fiber reinforced nylon material and preparation method thereof, to improve its fatigue performance, the scope of matrix resin can also be expanded simultaneously, simplify preparation process.
Based on above-mentioned purpose, track glass fiber reinforced nylon material provided by the invention is obtained by the raw material of following parts by weight:
Wherein, described copolymer polyamide resin is formed by lactams monomer, dicarboxylic monomers, binary amine monomer copolymerization; Described glass fibre is selected from least one in alkali free glass fibre, medium-alkali glass fibre, high alkali glass fibre, alkali resistant glass fibre, high-strength glass fibre.
In some embodiments of the invention, it is at least one in CM6040, CM6041, CM6241M that described copolymer polyamide resin is selected from the trade mark, and described glass fibre is shortly cut alkali free glass fibre, and diameter is 8 ~ 15 microns.
In some embodiments of the invention, described toughner is selected from least one in maleic anhydride inoculated polypropylene, maleic anhydride grafted polyethylene, maleic anhydride graft POE, maleic anhydride graft terpolymer EP rubber.
In some embodiments of the invention, described softening agent is N, N-ethyl beneznesulfonamide, N, N-butylbenzenesulfonamide, hexylene glycol, glycerine, at least one in trimellitic acid three monooctyl ester.
In some embodiments of the invention, described binding agent is active hyperbranched polyol alcohol CYD-PR232, at least one in CYD-PR121.
In some embodiments of the invention, described thermo-stabilizer is the mixture be made up of neutralized verdigris, potassiumiodide, Zinic stearas, and the mass ratio of described neutralized verdigris, potassiumiodide, Zinic stearas is 4 ~ 6:1 ~ 3:1.
In some embodiments of the invention, described antioxidant is selected from N, N-1,6-dihexyl two (3,5-bis-(1,1-dimethyl ethyl)-4-hydroxybenzene propionyl, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] tetramethylolmethane, at least one in three (2,4-di-tert-butyl-phenyl) phosphorous acid ester.
In some embodiments of the invention, described lubricant is selected from least one in tetrafluoroethylene, silicone powder/silicone oil, molybdenumdisulphide, maleic anhydride grafted polyethylene wax, Zinic stearas.
The present invention also provides a kind of method preparing above-mentioned track glass fiber reinforced nylon material, comprises the following steps:
Copolymer polyamide resin, toughner, expanding material, thermo-stabilizer, antioxidant, mix lubricant is even;
Mixture is joined twin screw extruder, while melt extruding, glass fibre is added from twin-screw extrusion pusher side feeding;
By the material extruded through overcooling, air-dry, pelletizing, prepare track glass fiber reinforced nylon material.
In some embodiments of the invention, the processing conditions of described twin screw extruder is: district's temperature is 240 ~ 250 DEG C, two district's temperature are 255 ~ 265 DEG C, three district's temperature are 255 ~ 265 DEG C, and four district's temperature are 255 ~ 265 DEG C, and five district's temperature are 255 ~ 265 DEG C, six district's temperature are 235 ~ 245 DEG C, seven district's temperature are 225 ~ 235 DEG C, and eight district's temperature are 225 ~ 235 DEG C, and head temperature is 245 ~ 255 DEG C; The engine speed of described twin screw extruder is 300 ~ 400 revs/min.
As can be seen from above, compared with prior art, the invention has the beneficial effects as follows:
1, the fatigue performance of the present invention by selecting suitable matrix resin and auxiliary agent to improve material, by active hyperbranched polyol alcohol as tackiness agent, the hydrogen bond action of the active hydroxy group contained by its rich surface, strengthen the consistency between resin matrix and between resin and glass, the glass of prepared material is evenly distributed and good with matrix resin interface cohesion in nylon resin, mechanical property and processing characteristics excellence, for having excellent resistance to fatigue during rail clip system plastic component.
2, the present invention improves the kindliness of matrix resin by softening agent, improves the shock strength of strongthener simultaneously, produces coordination plasticizing effect with toughner, and the notched Izod impact strength of prepared strongthener improves obviously.
3, Reinforced Nylon material of the present invention, preparation process is consistent with conventional Reinforced Nylon, to extrusion equipment and injection-moulding device without particular requirement, does not need to improve existing installation.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, the present invention is described in more detail.
Embodiment 1
(1) copolymer polyamide resin (trade mark CM6040) is dried at 100 DEG C, control moisture below 0.1%, take copolymer polyamide resin CM604060 weight part, toughening agent maleic anhydride grafting POE4 weight part, softening agent N, N-butylbenzenesulfonamide 2 weight part, binding agent hyperbranched polyol alcohol CYD-PR2320.2 weight part, thermo-stabilizer is by neutralized verdigris, potassiumiodide, the mixture 0.3 weight part (neutralized verdigris of Zinic stearas composition, potassiumiodide, the mass ratio of Zinic stearas is 5:2:1), antioxidant N, N-1, 6-dihexyl two (3, 5-bis-(1, 1-dimethyl ethyl)-4-hydroxybenzene propionyl 0.2 weight part, antioxidant three (2, 4-di-tert-butyl-phenyl) phosphorous acid ester 0.2 weight part, lubricant stearic acid zinc 0.3 weight part, mix under room temperature,
(2) material mixed is added twin screw extruder, be that the short alkali free glass fibre of cutting of 10 microns adds from side feeding by diameter while melt extruding, controlling glass consumption is 33 parts, the processing conditions of twin screw extruder is: district's temperature is 245 DEG C, two district's temperature are 260 DEG C, three district's temperature are 260 DEG C, four district's temperature are 260 DEG C, five district's temperature are 260 DEG C, six district's temperature are 240 DEG C, and seven district's temperature are 230 DEG C, and eight district's temperature are 230 DEG C, head temperature is 250 DEG C, and engine speed is 360 revs/min;
(3) material after extruding is dry through water quench, compressed gas, pelletizing, prepare track antifatigue glass fiber reinforced nylon material, temperature of cooling water is between 40 ~ 60 DEG C.
Embodiment 2
(1) copolymer polyamide resin CM6041 is dried at 100 DEG C, control moisture below 0.1%, take copolymer polyamide resin 57 weight part, toughening agent maleic anhydride grafting EPDM (terpolymer EP rubber) 2 weight part, softening agent trimellitic acid three monooctyl ester 4 weight part, binding agent hyperbranched polyol alcohol CYD-PR1210.5 weight part, thermo-stabilizer is by neutralized verdigris, potassiumiodide, the mixing 0.4 weight part (neutralized verdigris of Zinic stearas composition, potassiumiodide, the mass ratio of Zinic stearas is 5:3:1), antioxidant N, N-1, 6-dihexyl two (3, 5-bis-(1, 1-dimethyl ethyl)-4-hydroxybenzene propionyl 0.2 weight part, antioxidant four [β-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] tetramethylolmethane 0.5 weight part, lubricant molybdenumdisulphide 0.5 weight part, mix under room temperature,
(2) material mixed is added twin screw extruder, be that the short-cut middle-basicity glass fibre of 10 microns adds from side feeding by diameter while melt extruding, controlling glass consumption is 34 parts, the processing conditions of twin screw extruder is: district's temperature is 243 DEG C, two district's temperature are 258 DEG C, three district's temperature are 260 DEG C, four district's temperature are 260 DEG C, five district's temperature are 260 DEG C, six district's temperature are 238 DEG C, and seven district's temperature are 232 DEG C, and eight district's temperature are 232 DEG C, head temperature is 255 DEG C, and engine speed is 380 revs/min;
(3) injected from twin screw extruder the 5th district by liquor pump;
(3) material after extruding is dry through water quench, compressed gas, pelletizing, prepare track antifatigue glass fiber reinforced nylon material, temperature of cooling water is between 40 ~ 60 DEG C.
Embodiment 3
(1) copolymer polyamide resin CM6241M is dried at 100 DEG C, control moisture below 0.1%, take copolymer polyamide resin 65 weight part, toughening agent maleic anhydride grafting polyethylene 5 weight part, softening agent N, N-butylbenzenesulfonamide 2.5 weight part, binding agent hyperbranched polyol alcohol CYD-PR2320.3 weight part, thermo-stabilizer is by neutralized verdigris, potassiumiodide, the mixture 0.5 weight part (neutralized verdigris of Zinic stearas composition, potassiumiodide, the mass ratio of Zinic stearas is 4:3:1), antioxidant N, N-1, 6-dihexyl two (3, 5-bis-(1, 1-dimethyl ethyl)-4-hydroxybenzene propionyl 0.2 weight part, antioxidant three (2, 4-di-tert-butyl-phenyl) phosphorous acid ester 0.2 weight part, lubricant maleic anhydride grafted polyethylene wax 0.7 weight part, mix under room temperature,
(2) material mixed is added twin screw extruder, be that the short high alkali glass fibre of cutting of 8 microns adds from side feeding by diameter while melt extruding, controlling glass consumption is 30 parts, the processing conditions of twin screw extruder is: district's temperature is 247 DEG C, two district's temperature are 260 DEG C, three district's temperature are 260 DEG C, four district's temperature are 260 DEG C, five district's temperature are 260 DEG C, six district's temperature are 245 DEG C, and seven district's temperature are 230 DEG C, and eight district's temperature are 230 DEG C, head temperature is 252 DEG C, and engine speed is 350 revs/min;
(3) injected from twin screw extruder the 5th district by liquor pump;
(3) material after extruding is dry through water quench, compressed gas, pelletizing, prepare track antifatigue glass fiber reinforced nylon material, temperature of cooling water is between 40 ~ 60 DEG C.
Embodiment 4
(1) copolymer polyamide resin CM6040 is dried at 100 DEG C, control moisture below 0.1%, take copolymer polyamide resin 52 weight part, toughening agent maleic anhydride grafting EPDM (terpolymer EP rubber) 7 weight part, softening agent N, N-butylbenzenesulfonamide 4.5 weight part, binding agent hyperbranched polyol alcohol CYD-PR2320.15 weight part, thermo-stabilizer is by neutralized verdigris, potassiumiodide, the mixture 0.6 weight part (neutralized verdigris of Zinic stearas composition, potassiumiodide, the mass ratio of Zinic stearas is 5:1:1), antioxidant N, N-1, 6-dihexyl two (3, 5-bis-(1, 1-dimethyl ethyl)-4-hydroxybenzene propionyl 0.7 weight part, lubricant tetrafluoroethylene 0.4 weight part, mix under room temperature,
(2) material mixed is added twin screw extruder, be that the short-cut middle-basicity glass fibre of 15 microns adds from side feeding by diameter while melt extruding, controlling glass consumption is 32 parts, the processing conditions of twin screw extruder is: district's temperature is 248 DEG C, two district's temperature are 265 DEG C, three district's temperature are 265 DEG C, four district's temperature are 265 DEG C, five district's temperature are 265 DEG C, six district's temperature are 240 DEG C, and seven district's temperature are 230 DEG C, and eight district's temperature are 230 DEG C, head temperature is 252 DEG C, and engine speed is 380 revs/min;
(3) injected from twin screw extruder the 5th district by liquor pump;
(3) material after extruding is dry through water quench, compressed gas, pelletizing, prepare track antifatigue glass fiber reinforced nylon material, temperature of cooling water is between 40 ~ 60 DEG C.
Embodiment 5
(1) copolymer polyamide resin CM6041 is dried at 100 DEG C, control moisture below 0.1%, take copolymer polyamide resin 54 weight part, toughening agent maleic anhydride grafting POE5.5 weight part, softening agent trimellitic acid three monooctyl ester 3.8 weight part, binding agent hyperbranched polyol alcohol CYD-PR1210.4 weight part, thermo-stabilizer is by neutralized verdigris, potassiumiodide, the mixing 0.4 weight part (neutralized verdigris of Zinic stearas composition, potassiumiodide, the mass ratio of Zinic stearas is 6:3:1), antioxidant three (2, 4-di-tert-butyl-phenyl) phosphorous acid ester 0.3 weight part, antioxidant four [β-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] tetramethylolmethane 0.1 weight part, lubricant molybdenumdisulphide 0.8 weight part, mix under room temperature,
(2) material mixed is added twin screw extruder, be that the short alkali resistant glass fibre of cutting of 10 microns adds from side feeding by diameter while melt extruding, controlling glass consumption is 34 parts, the processing conditions of twin screw extruder is: district's temperature is 245 DEG C, two district's temperature are 260 DEG C, three district's temperature are 260 DEG C, four district's temperature are 260 DEG C, five district's temperature are 260 DEG C, six district's temperature are 245 DEG C, and seven district's temperature are 230 DEG C, and eight district's temperature are 230 DEG C, head temperature is 250 DEG C, and engine speed is 320 revs/min;
(3) injected from twin screw extruder the 5th district by liquor pump;
(3) material after extruding is dry through water quench, compressed gas, pelletizing, prepare track antifatigue glass fiber reinforced nylon material, temperature of cooling water is between 40 ~ 60 DEG C.
Embodiment 6
(1) copolymer polyamide resin CM6241M is dried at 100 DEG C, control moisture below 0.1%, take copolymer polyamide resin 60 weight part, toughening agent maleic anhydride grafting EPDM (terpolymer EP rubber) 6.4 weight part, softening agent glycerine 2.8 weight part, binding agent hyperbranched polyol alcohol CYD-PR1210.45 weight part, thermo-stabilizer is by neutralized verdigris, potassiumiodide, the mixing 0.3 weight part (neutralized verdigris of Zinic stearas composition, potassiumiodide, the mass ratio of Zinic stearas is 4:2:1), antioxidant four [β-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] tetramethylolmethane 0.85 weight part, lubricant silicone powder/silicone oil 0.9 weight part, mix under room temperature,
(2) material mixed is added twin screw extruder, be that the short high-strength glass fibre of cutting of 10 microns adds from side feeding by diameter while melt extruding, controlling glass consumption is 35 parts, the processing conditions of twin screw extruder is: district's temperature is 247 DEG C, two district's temperature are 256 DEG C, three district's temperature are 256 DEG C, four district's temperature are 256 DEG C, five district's temperature are 256 DEG C, six district's temperature are 244 DEG C, and seven district's temperature are 230 DEG C, and eight district's temperature are 230 DEG C, head temperature is 245 DEG C, and engine speed is 300 revs/min;
(3) injected from twin screw extruder the 5th district by liquor pump;
(3) material after extruding is dry through water quench, compressed gas, pelletizing, prepare track antifatigue glass fiber reinforced nylon material, temperature of cooling water is between 40 ~ 60 DEG C.
The antifatigue glass fiber reinforced nylon material obtained to embodiment 1-6 carries out performance test, batten performance test methods carries out with national standard, the test of track goods fatigue performance is carried out according to SYBB/JS-W03-2009 " under WJ8 iron chair resilient sleeper-bearing examination and test of products standard ", and result is as shown in the table:
Visible, track glass fiber reinforced nylon material provided by the invention and preparation method thereof, preparation process is consistent with conventional Reinforced Nylon, to equipment without particular requirement, by the fatigue performance selecting suitable matrix resin and auxiliary agent to improve material, glass is evenly distributed and good with matrix resin interface cohesion in nylon resin, mechanical property and processing characteristics excellent, for having excellent resistance to fatigue during rail clip system plastic component, test by antifatigue.
As can be seen here, compared with prior art, the invention has the beneficial effects as follows:
1, the fatigue performance of the present invention by selecting suitable matrix resin and auxiliary agent to improve material, by active hyperbranched polyol alcohol as tackiness agent, the hydrogen bond action of the active hydroxy group contained by its rich surface, strengthen the consistency between resin matrix and between resin and glass, the glass of prepared material is evenly distributed and good with matrix resin interface cohesion in nylon resin, mechanical property and processing characteristics excellence, for having excellent resistance to fatigue during rail clip system plastic component.
2, the present invention improves the kindliness of matrix resin by softening agent, improves the shock strength of strongthener simultaneously, produces coordination plasticizing effect with toughner, and the notched Izod impact strength of prepared strongthener improves obviously.
3, Reinforced Nylon material of the present invention, preparation process is consistent with conventional Reinforced Nylon, to extrusion equipment and injection-moulding device without particular requirement, does not need to improve existing installation.
Those of ordinary skill in the field are to be understood that: the discussion of above any embodiment is only exemplary, and not intended to be implies that the scope of the present disclosure (comprising claim) is limited to these examples; Under thinking of the present invention, also can combine between technical characteristic in above embodiment or different embodiment, step can realize with random order, and there are other changes many of different aspect of the present invention as above, and they do not provide in details for the sake of simplicity.Therefore, within the spirit and principles in the present invention all, any omission made, amendment, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a track glass fiber reinforced nylon material, is characterized in that, is obtained by the raw material of following parts by weight:
Wherein, described copolymer polyamide resin is formed by lactams monomer, dicarboxylic monomers, binary amine monomer copolymerization; Described glass fibre is selected from least one in alkali free glass fibre, medium-alkali glass fibre, high alkali glass fibre, alkali resistant glass fibre, high-strength glass fibre.
2. track glass fiber reinforced nylon material according to claim 1, it is characterized in that, it is at least one in CM6040, CM6041, CM6241M that described copolymer polyamide resin is selected from the trade mark, and described glass fibre is shortly cut alkali free glass fibre, and diameter is 8 ~ 15 microns.
3. track glass fiber reinforced nylon material according to claim 1, it is characterized in that, described toughner is selected from least one in maleic anhydride inoculated polypropylene, maleic anhydride grafted polyethylene, maleic anhydride graft POE, maleic anhydride graft terpolymer EP rubber.
4. track glass fiber reinforced nylon material according to claim 1, is characterized in that, described softening agent is N, N-ethyl beneznesulfonamide, N, N-butylbenzenesulfonamide, hexylene glycol, glycerine, at least one in trimellitic acid three monooctyl ester.
5. track glass fiber reinforced nylon material according to claim 1, is characterized in that, described binding agent is active hyperbranched polyol alcohol CYD-PR232, at least one in CYD-PR121.
6. track glass fiber reinforced nylon material according to claim 1, is characterized in that, described thermo-stabilizer is the mixture be made up of neutralized verdigris, potassiumiodide, Zinic stearas, and the mass ratio of described neutralized verdigris, potassiumiodide, Zinic stearas is 4 ~ 6:1 ~ 3:1.
7. track glass fiber reinforced nylon material according to claim 1, it is characterized in that, described antioxidant is selected from N, N-1,6-dihexyl two (3,5-bis-(1,1-dimethyl ethyl)-4-hydroxybenzene propionyl, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] tetramethylolmethane, at least one in three (2,4-di-tert-butyl-phenyl) phosphorous acid ester.
8. track glass fiber reinforced nylon material according to claim 1, is characterized in that, described lubricant is selected from least one in tetrafluoroethylene, silicone powder/silicone oil, molybdenumdisulphide, maleic anhydride grafted polyethylene wax, Zinic stearas.
9. prepare the method according to the track glass fiber reinforced nylon material in claim 1 ~ 8 described in any one, it is characterized in that, comprise the following steps:
Copolymer polyamide resin, toughner, expanding material, thermo-stabilizer, antioxidant, mix lubricant is even;
Mixture is joined twin screw extruder, while melt extruding, glass fibre is added from twin-screw extrusion pusher side feeding;
By the material extruded through overcooling, air-dry, pelletizing, prepare track glass fiber reinforced nylon material.
10. the preparation method of track glass fiber reinforced nylon material according to claim 1, it is characterized in that, the processing conditions of described twin screw extruder is: district's temperature is 240 ~ 250 DEG C, and two district's temperature are 255 ~ 265 DEG C, and three district's temperature are 255 ~ 265 DEG C, four district's temperature are 255 ~ 265 DEG C, five district's temperature are 255 ~ 265 DEG C, and six district's temperature are 235 ~ 245 DEG C, and seven district's temperature are 225 ~ 235 DEG C, eight district's temperature are 225 ~ 235 DEG C, and head temperature is 245 ~ 255 DEG C; The engine speed of described twin screw extruder is 300 ~ 400 revs/min.
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| CN106046777A (en) * | 2016-06-28 | 2016-10-26 | 长沙争明新材料有限公司 | Glass fiber reinforced polyamide compound material and preparation method thereof |
| CN107266908A (en) * | 2017-07-17 | 2017-10-20 | 宁波海雨新材料科技有限公司 | A kind of composite alloy of low deformation enhancement PA 6 and PP |
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| CN107760022A (en) * | 2017-11-22 | 2018-03-06 | 南京立汉化学有限公司 | A kind of plasticising type toughened Nylon 6 material and preparation method thereof |
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| CN110172242A (en) * | 2019-06-06 | 2019-08-27 | 天津长芦海晶集团有限公司 | Resistance to thermal level blow molding enhances modified polyamide composite material |
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| CN110172242A (en) * | 2019-06-06 | 2019-08-27 | 天津长芦海晶集团有限公司 | Resistance to thermal level blow molding enhances modified polyamide composite material |
| CN112521748A (en) * | 2020-12-18 | 2021-03-19 | 株洲春华实业有限责任公司 | Thermoplastic material for manufacturing automobile air suspension part and preparation method thereof |
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