CN109054373A - A kind of contact nets in electrified railways are fixed to hang device for carrying a tripot nylon material and preparation method thereof - Google Patents
A kind of contact nets in electrified railways are fixed to hang device for carrying a tripot nylon material and preparation method thereof Download PDFInfo
- Publication number
- CN109054373A CN109054373A CN201810688132.6A CN201810688132A CN109054373A CN 109054373 A CN109054373 A CN 109054373A CN 201810688132 A CN201810688132 A CN 201810688132A CN 109054373 A CN109054373 A CN 109054373A
- Authority
- CN
- China
- Prior art keywords
- parts
- tripot
- nylon material
- carrying
- electrified railways
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
-
- 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
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2310/00—Masterbatches
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of fixations of contact nets in electrified railways to hang device for carrying a tripot nylon material, following raw material is carried out with part according to weight: 60 parts of -85 parts of PA66,5 parts of -15 parts of PA6,5 parts of -20 parts of low temperature resistant toughener, the lubricating and wear-resisting modifying agent of 0.1 part of -1 part of high-molecular-weight organopolysiloxanes class, the primary antioxidant of 0.1 part of -0.5 part of high molecular weight hindered phenols class, the auxiliary antioxidant of 0.1 part of -0.5 part of phosphorous acid esters, 0.1 part -0.5 part of light stabilizer, 0.1 part -0.5 part of heat stabilizer, 0.5-2 parts of color masterbatch.The invention also discloses a kind of fixed preparation methods for hanging device for carrying a tripot nylon material of contact nets in electrified railways.The nylon material can keep for a long time 20KJ/m under -50 DEG C of cryogenic conditions2Above impact strength.After 500h ultraviolet aging resistance, 85% or more property retention can be used for a long time outdoors.And there is excellent wearability.
Description
Technical field
The invention belongs to technical field of material, and in particular to a kind of contact nets in electrified railways are fixed to hang device for carrying a tripot nylon
The preparation method of material and the nylon material.
Background technique
Nylon has been widely used in overseas high speed as a kind of good mechanical performance and the small special engineering plastics of specific gravity
Railway, such as nylon baffle seat, rail insulation track gauge block and switch tie plastic bushing etc..Specifically: (1) machine of nylon material
Tool intensity is high, has preferable tension, compression strength, fatigue performance is prominent, and nylon products can be through repeatedly flexion remains to repeatedly
Keep original mechanical strength；(2) surface of nylon products is smooth, and coefficient of friction is small, more wear-resisting；(3) nylon material is to biology
It corrodes inert, there is good antibacterial, Antimould power；(4) nylon material has excellent electric property, and electrical insulating property is good, body
Product resistance is very high, and breakdown voltage resistant height can be used as power frequency insulating materials in dry environments and come using even if under high humidity environment
Still there is preferable electrical insulating property.
However, the defect that the generally existing lower temperature resistance of nylon material is bad and resisting ageing for long time is not high.For example, high wind
Area's contact net hang device for carrying a tripot generally use integral rigidity sliding can not the copper of mode hang device for carrying a tripot, it is processed and formed at one time, once mounting in place,
It cannot be adjusted, sufficiently highlight the technical requirements of contact net equipment " highly reliable, few maintenance ".But but to hanging device for carrying a tripot in practical application
In slide unit (AB nylon jacket) propose quite high requirement hang device for carrying a tripot because contact net is fixed and be exposed to puna throughout the year
Under the conditions of, it is subjected to sunlight irradiation, the fixed device for carrying a tripot that hangs needs to bear certain pressure, and AB nylon jacket is long during wind is put and crosses train
It is easy to produce abrasion under the vibration sliding of phase, therefore it is required that the material there must be certain low temperature resistant weather-resistant and wear-resisting
Damage property.And the material still relies on import at present, higher operating costs, domestic relevant material comprehensive performance is difficult to meet again to be wanted
It asks, therefore develops a domestic low temperature resistant wear-resistant anti-aging nylon material suitable for railway and just seem very necessary.
Summary of the invention
It is fixed the first purpose of the invention is to provide a kind of contact nets in electrified railways and hangs device for carrying a tripot nylon material, solve mesh
The defect that the generally existing lower temperature resistance of nylon material of the preceding country is bad and resisting ageing for long time is not high.
A second object of the present invention is to provide a kind of preparation method of above-mentioned nylon material, it is equally used for solving current state
The defect that the generally existing lower temperature resistance of interior nylon material is bad and resisting ageing for long time is not high.
In order to realize that the first purpose of this invention, the first technical solution of the present invention are a kind of electrifications
Device for carrying a tripot nylon material is hung in railway contact net fixation, carries out following raw material with part according to weight:
60 parts of -85 parts of PA66,5 parts of -15 parts of PA6,5 parts of -20 parts of low temperature resistant toughener, 0.1 part -1 part of lubricating and wear-resisting change
Property agent, the primary antioxidant of 0.1 part of -0.5 part of Hinered phenols, the auxiliary antioxidant of 0.1 part of -0.5 part of phosphorous acid esters, 0.1 part -
0.5 part of light stabilizer, 0.1 part -0.5 part of heat stabilizer.
The first technical solution of the invention, also has the following characteristics that
The low temperature resistant toughener is that maleic anhydride is grafted EPDM and POE by 1:1 compounding.
EPDM is ethylene propylene diene rubber, maleic anhydride grafting ratio 0.5-1%.POE is ethylene-octene copolymer elastomer.
The relative viscosity of the PA66 and PA6 is between 2.7 ± 0.01.
The lubricating and wear-resisting modifying agent is using PE as the high-molecular-weight organopolysiloxanes master batch of carrier.
The primary antioxidant of the Hinered phenols is novel fire resistant Hinered phenols antioxidant N, N '-hexamethylene bis (3,5-
Di-t-butyl -4- hydroxyl hydrocinnamamide).
The auxiliary antioxidant is three [2.4- di-tert-butyl-phenyl] phosphite esters.
The light stabilizer is 2- (- 5 ˊ of 2 ˊ-hydroxyl-aminomethyl phenyl) benzotriazole, bis- (2,2,6,6- tetramethyl -4-
Piperidine alcohols) sebacic acid ester, the 1:1:1 compound of carbon black.
The heat stabilizer is organic copper salt, is a kind of antioxidant of copper complex, contains effective lubricant (rouge simultaneously
Fat hydrochlorate, wax).
The color masterbatch is PA6 carrier color masterbatch Cabot PA3785, good with nylon resin compatibility, and tinctorial yield is high.
In order to realize second object of the present invention, second of technical solution of the present invention is: a kind of above-mentioned Buddhist nun
The preparation method of imperial material, is specifically implemented according to the following steps:
Step 1, according to weight, 60 parts of -85 parts of PA66,5 parts of -15 parts of PA6,5 parts of -20 parts of low temperature resistant toughenings are measured respectively
Agent, 0.1 part of -1 part of lubricating and wear-resisting modifying agent, 0.1 part of -0.5 part of primary antioxidant, 0.1 part of -0.5 part of auxiliary antioxidant, 0.1 part -
0.5 part of light stabilizer, 0.1 part -0.5 part of heat stabilizer, 0.5 part -2 parts of color masterbatch；
Step 2, the PA66 and PA6 that measure through step 1 are dried；
Step 3, appropriate white oil is added after the PA66 obtained through step 2 and PA6 being mixed and stirs 10min-15min, later
Add the low temperature resistant toughener measured through step 1, lubricating and wear-resisting modifying agent, primary antioxidant, auxiliary antioxidant, light stabilizer,
The stirring such as heat stabilizer, color masterbatch 15min-20min obtains mixed material；
Step 4, extruder is added in mixed material step 3 obtained, and the temperature of extruder barrel is controlled 230
Between DEG C -270 DEG C, the temperature of cross-head is controlled at 260 DEG C, after the extrusion of extruder, tie rod, water cooling and pelletizing
To final nylon material.
Second of technical solution of the invention, also has a following characteristics:
In the step 2, the drying temperature of PA66 and PA6 are 90 DEG C -110 DEG C, drying temperature 3h-6h.
The beneficial effects of the present invention are: the contact nets in electrified railways fixation that preparation method is prepared through the invention is hung
The nylon material of device for carrying a tripot can keep for a long time 15KJ/m under -50 DEG C of cryogenic conditions2Above impact strength.500h is resistance to ultraviolet
After aging, 85% or more property retention can be used for a long time outdoors.With excellent wearability.
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with specific embodiment.
Device for carrying a tripot nylon material is hung in a kind of contact nets in electrified railways fixation of the present invention, according to weight to following raw material
It carries out with part:
PA66 of 60 parts of -85 parts of relative viscosities between 2.7 ± 0.01,5 parts of -15 parts of relative viscosities 2.7 ± 0.01 it
Between PA6,5 parts of -20 parts of low temperature resistant toughener, the lubricating and wear-resisting modifying agent of 0.1 part of -1 part of high-molecular-weight organopolysiloxanes class,
The primary antioxidant of 0.1 part of -0.5 part of high molecular weight hindered phenols class, the auxiliary antioxidant of 0.1 part of -0.5 part of phosphorous acid esters, 0.1
- 0.5 part of light stabilizer of part, 0.1 part of -0.5 part of heat stabilizer, 0.5 part of -2 parts of color masterbatch.
A kind of method for preparing above-mentioned contact nets in electrified railways fixation and hanging device for carrying a tripot nylon material of the present invention, specifically
It follows the steps below to implement:
Step 1, according to weight ratio, 60 parts of -85 parts of relative viscosities PA66 between 2.7 ± 0.01 is measured respectively, 5 part -15
Part relative viscosity PA6 between 2.7 ± 0.01,5 parts of -20 parts of low temperature resistant toughener, 0.1 part of -1 part of lubricating and wear-resisting modifying agent, 0.1
- 0.5 part of primary antioxidant of part, 0.1 part of -0.5 part of auxiliary antioxidant, 0.1 part -0.5 part of light stabilizer, 0.2 part -0.5 part of heat
Stabilizer, 0.5 part -2 parts of color masterbatch.
Step 2, the PA66 and PA6 that measure through step 1 are placed under conditions of 90 DEG C -110 DEG C and dry 3h-6h；
Step 3, appropriate white oil is added after the PA66 obtained through step 2 and PA6 being mixed and stirs 10min-15min, later
Add the low temperature resistant toughener measured through step 1, lubricating and wear-resisting modifying agent, primary antioxidant, auxiliary antioxidant, light stabilizer,
The stirring such as heat stabilizer, color masterbatch 15min-20min obtains mixed material；
Step 4, extruder is added in mixed material step 3 obtained, and the temperature of extruder barrel is controlled 230
Between DEG C -270 DEG C, the temperature of cross-head is controlled at 260 DEG C, after the extrusion of extruder, tie rod, water cooling and pelletizing
To final nylon material.
Highly viscous nylon resin has high molecular weight, and the high nylon of molecular weight is more stable, fast light, heat-resisting, resistance to old
The property changed is more preferable, is capable of providing good cryogenic property；High molecular weight also reduces the risk of hydrolysis and degradation, for resistant to hydrolysis
The influence that property and lower temperature resistance have had；But viscosity is lower, mobility is better, is convenient for processing and forming.Comprehensively consider performance and
Processability, the nylon resin raw material of nylon resin selection intermediate molecular weight of the invention, i.e. selection relative viscosity is 2.7 ± 0.01
Between PA66 as major ingredient, PA6 of the relative viscosity between 2.7 ± 0.01 is added in part, to increase its toughness, improves flowing
Property simultaneously reduces cost.
Low temperature resistant toughener selection maleic anhydride is grafted EPDM, maleic anhydride grafting ratio 1.2%, and maleic anhydride has strong
Polarity, it is good with resin compatible, it can be good at being dispersed in resin.EPDM has excellent lower temperature resistance, is used in nylon
In toughening, the outstanding toughness and lower temperature resistance of nylon is provided compared to other toughener.EPDM grafted maleic anhydride both played
The effect of interfacial compatibilizer, and improve the toughness and lower temperature resistance of system.The compatibility of POE and nylon is poor, direct toughening
Good effect is not achieved in nylon, but after compounding with maleic anhydride grafting EPDM, maleic anhydride grafting POE plays compatilizer
Effect, the two compounding significantly improves the effect of toughening, and POE is protected compared to the preferable mobility of EPDM grafted maleic anhydride
The enough mobility of system are held.Therefore, significantly improve low-temperature impact at -50 DEG C of nylon by the compounding of the two.
Wear-resisting lubricant is a kind of high-molecular-weight organopolysiloxanes master batch, it is using PE resin as carrier, by poly- silicon oxygen
Alkane disperses in the base, to improve dispersibility.Polysiloxanes has very strong polarity, can be very good compatible with resin.High point
Son amount has good stability so that its resistance to precipitation property is good, influences on material property small.Process reduces rubbing for equipment
It wipes, reduces torque, improve mobility, to ensure that product appearance, product is made to achieve the effect that light.
Primary antioxidant is Hinered phenols antioxidant N, N '-hexamethylene bis (3, the 5- di-t-butyl -4- of a kind of high molecular weight
Hydroxyl hydrocinnamamide), there is good thermal stability, anti-precipitation can effectively capture the free radical of chain reaction generation, interrupt and live
The growth of property chain.Auxiliary antioxidant is three [2.4- di-tert-butyl-phenyl] phosphite esters, is able to suppress, delays in elicitation procedure certainly
By the generation of base, hydroperoxide decomposition, passivation remains in the metal ion in polymer.Primary antioxidant and auxiliary antioxidant are multiple
Match, generate synergistic effect, be supplied to product process thermo-oxidative stability and long-term ageing stability.
Light stabilizer is 2- (- 5 ˊ of 2 ˊ-hydroxyl-aminomethyl phenyl) benzotriazole, bis- (2,2,6,6- tetramethyl -4- piperidines
Alcohol) sebacic acid ester, the 1:1:1 compound of carbon black.With nylon highly compatible, and with nylon molecules bond be combined, keep its right
The limit of the photostability beyond tradition light stabilizer of nylon.Molecular weight is high, and resistance to precipitation property is good.Compounding can generate synergistic effect,
The efficiency for improving anti-light oxygen aging meets the condition of its outdoor long-time service.
Heat stabilizer is a kind of organic copper salt, is a kind of antioxidant of copper complex and the mixture of synergist, contains simultaneously
There is effective lubricant (fatty acid salt, wax).React chelating with amide group, protection amide group it is long-term it is ultraviolet,
In the working environment of hot oxygen, from the attack of hot oxygen groups and other active groups, prevent molecular chain rupture from degrading.It is mentioned for nylon
For long-term heat-resistant aging, chemical attack and harsh climate condition are resisted.
The fixed nylon material for hanging device for carrying a tripot of the contact nets in electrified railways that preparation method is prepared through the invention, can
15KJ/m is kept for a long time under -50 DEG C of cryogenic conditions2Above impact strength.After 500h ultraviolet aging resistance, property retention
85% or more, it can be used for a long time outdoors.And there is excellent wearability.
Embodiment 1
Device for carrying a tripot nylon material is hung in a kind of contact nets in electrified railways fixation of the invention, is carried out according to weight to following raw material
With part:
The PA66 that 82 parts of relative viscosities are 2.7, the PA6 that 10 parts of relative viscosities are 2.7,8 parts of low temperature resistant toughener, 0.5 part
Lubricating and wear-resisting modifying agent, 0.2 part of primary antioxidant, 0.2 part of auxiliary antioxidant, 0.1 part of light stabilizer, 0.1 part of heat stabilizer, 1 part
Color masterbatch.
It is of the invention it is a kind of prepare the fixed method for hanging device for carrying a tripot nylon material of above-mentioned contact nets in electrified railways, specifically according to
Following steps are implemented:
Step 1, according to weight ratio, 82 parts of PA66 of measurement, 10 parts of PA6,8 parts of low temperature resistant toughener, 0.5 part of lubrication are resistance to respectively
Grind modifying agent, 0.2 primary antioxidant, 0.2 part of auxiliary antioxidant, 0.1 part of light stabilizer, 0.1 part of heat stabilizer, 1 part of color masterbatch；
Step 2, the PA66 and PA6 that measure through step 1 are placed under conditions of 100 DEG C and dry 4h；
Step 3, appropriate white oil is added after the PA66 obtained through step 2 and PA6 being mixed and stirs 12min, adds later
Low temperature resistant toughener, lubricating and wear-resisting modifying agent, primary antioxidant, auxiliary antioxidant, the light stabilizer, thermostabilization measured through step 1
The stirring such as agent, color masterbatch 18min obtains mixed material；
Step 4, extruder is added in mixed material step 3 obtained, and the temperature of extruder barrel is controlled at 250 DEG C
Between, the temperature of cross-head is controlled at 260 DEG C, is obtained after the extrusion of extruder, tie rod, water cooling and pelletizing final
Nylon material.
The nylon material performance test results are as follows:
Embodiment 2
Device for carrying a tripot nylon material is hung in a kind of contact nets in electrified railways fixation of the invention, is carried out according to weight to following raw material
With part:
78 parts of relative viscosities are the PA66 between 2.7, the PA6 that 10 parts of relative viscosities are 2.7,12 parts of low temperature resistant toughener,
The lubricating and wear-resisting modifying agent of 0.5 part of high-molecular-weight organopolysiloxanes class, the primary antioxidant of 0.2 part of high molecular weight hindered phenols class,
The auxiliary antioxidant of 0.2 part of phosphorous acid esters, 0.15 part of light stabilizer, 0.1 part of heat stabilizer, 1 part of color masterbatch.
It is of the invention it is a kind of prepare the fixed method for hanging device for carrying a tripot nylon material of above-mentioned contact nets in electrified railways, specifically according to
Following steps are implemented:
Step 1, according to weight ratio, 78 parts of PA66,10 parts of PA6,12 parts of low temperature resistant toughener, 0.5 part of lubrication are measured respectively
Abrasion resistance modifier, 0.2 part of primary antioxidant, 0.2 part of auxiliary antioxidant, 0.15 part of light stabilizer, 0.1 part of heat stabilizer, 1 part
Color masterbatch；
Step 2, the PA66 and PA6 that measure through step 1 are placed under conditions of 90 DEG C and dry 4h；
Step 3, appropriate white oil is added after the PA66 obtained through step 2 and PA6 being mixed and stirs 15min, adds later
Low temperature resistant toughener, lubricating and wear-resisting modifying agent, primary antioxidant, auxiliary antioxidant, the light stabilizer, thermostabilization measured through step 1
The stirring such as agent, color masterbatch 20min obtains mixed material；
Step 4, extruder is added in mixed material step 3 obtained, and the temperature of extruder barrel is controlled at 260 DEG C
Between, the temperature of cross-head is controlled at 260 DEG C, is obtained after the pull-out of extruder, tie rod, water cooling and pelletizing final
Nylon material.
The nylon material performance test results are as follows:
| Physical property | Unit | Test method | Test condition | The similar material in market | Material of the present invention |
| Tensile strength | MPa | GB/T1040 | 50mm/min | 48 | 47 |
| Bending strength | MPa | GB/T9341 | 2mm/min | 53 | 54 |
| Low temperature notched impact | KJ/m2 | GB/T1843 | -50℃ | 15 | 16 |
| Appearance after aging | -- | GB/T16422 | 500h | The variation such as surface no cracking | The variation such as surface no cracking |
| Aged properties is kept | % | GB/T16422 | 500h | 80% | Stretching strength retentivity 92% |
| Coefficient of friction | -- | GB 3960 | 200min | 0.0365 | 0.0325 |
Embodiment 3
Device for carrying a tripot nylon material is hung in a kind of contact nets in electrified railways fixation of the invention, is carried out according to weight to following raw material
With part:
The PA66 that 75 parts of relative viscosities are, the PA6 that 10 parts of relative viscosities are 2.7,15 parts of low temperature resistant toughener, 1 part of high score
The lubricating and wear-resisting modifying agent of son amount organopolysiloxane class, the primary antioxidant of 0.2 part of high molecular weight hindered phenols class, 0.2 part of phosphorous
The auxiliary antioxidant of esters of gallic acid, 0.2 part of light stabilizer, 0.2 heat stabilizer, 1 part of color masterbatch.
It is of the invention it is a kind of prepare the fixed method for hanging device for carrying a tripot nylon material of above-mentioned contact nets in electrified railways, specifically according to
Following steps are implemented:
Step 1, according to weight ratio, 75 parts of PA66 of measurement, 10 parts of PA6,15 parts of low temperature resistant toughener, 1 part of lubrication are resistance to respectively
Mill modifying agent, 0.2 part of primary antioxidant, 0.2 part of auxiliary antioxidant, 0.2 part of light stabilizer, 0.2 part of heat stabilizer, 1 part
Color masterbatch；
Step 2, the PA66 and PA6 that measure through step 1 are placed under conditions of 100 DEG C and dry 5h；
Step 3, appropriate white oil is added after the PA66 obtained through step 2 and PA6 being mixed and stirs 15min, adds later
Low temperature resistant toughener, lubricating and wear-resisting modifying agent, primary antioxidant, auxiliary antioxidant, the light stabilizer, thermostabilization measured through step 1
The stirring such as agent, color masterbatch 15min obtains mixed material；
Step 4, extruder is added in mixed material step 3 obtained, and the temperature of extruder barrel is controlled at 270 DEG C
Between, the temperature of cross-head is controlled at 260 DEG C, is obtained after the extrusion of extruder, tie rod, water cooling and pelletizing final
Nylon material.
The nylon material performance test results are as follows:
| Physical property | Unit | Test method | Test condition | The similar material in market | Material of the present invention |
| Tensile strength | MPa | GB/T1040 | 50mm/min | 48 | 47 |
| Bending strength | MPa | GB/T9341 | 2mm/min | 53 | 54 |
| Low temperature notched impact | KJ/m2 | GB/T1843 | -50℃ | 15 | 18 |
| Appearance after aging | -- | GB/T16422 | 500h | The variation such as surface no cracking | The variation such as surface no cracking |
| Aged properties is kept | -- | GB/T16422 | 500h | 80% | Stretching strength retentivity 96% |
| Coefficient of friction | % | GB 3960 | 200min | 0.0365 | 0.0215 |
Embodiment 4
Device for carrying a tripot nylon material is hung in a kind of contact nets in electrified railways fixation of the invention, is carried out according to weight to following raw material
With part:
The PA66 that 72 parts of relative viscosities are, the PA6 that 10 parts of relative viscosities are 2.7,18 parts of low temperature resistant toughener, 1 part of high score
The lubricating and wear-resisting modifying agent of son amount organopolysiloxane class, the primary antioxidant of 0.2 part of high molecular weight hindered phenols class, 0.2 part of phosphorous
The auxiliary antioxidant of esters of gallic acid, 0.2 part of light stabilizer, 0.2 heat stabilizer, 1 part of color masterbatch.
It is of the invention it is a kind of prepare the fixed method for hanging device for carrying a tripot nylon material of above-mentioned contact nets in electrified railways, specifically according to
Following steps are implemented:
Step 1, according to weight ratio, 72 parts of PA66 of measurement, 10 parts of PA6,18 parts of low temperature resistant toughener, 1 part of lubrication are resistance to respectively
Mill modifying agent, 0.2 part of primary antioxidant, 0.2 part of auxiliary antioxidant, 0.2 part of light stabilizer, 0.2 part of heat stabilizer, 1 part
Color masterbatch；
Step 2, the PA66 and PA6 that measure through step 1 are placed under conditions of 100 DEG C and dry 5h；
Step 3, appropriate white oil is added after the PA66 obtained through step 2 and PA6 being mixed and stirs 15min, adds later
Low temperature resistant toughener, lubricating and wear-resisting modifying agent, primary antioxidant, auxiliary antioxidant, the light stabilizer, thermostabilization measured through step 1
The stirring such as agent, color masterbatch 15min obtains mixed material；
Step 4, extruder is added in mixed material step 3 obtained, and the temperature of extruder barrel is controlled at 270 DEG C
Between, the temperature of cross-head is controlled at 260 DEG C, is obtained after the extrusion of extruder, tie rod, water cooling and pelletizing final
Nylon material.
The nylon material performance test results are as follows:
| Physical property | Unit | Test method | Test condition | The similar material in market | Material of the present invention |
| Tensile strength | MPa | GB/T1040 | 50mm/min | 48 | 46 |
| Bending strength | MPa | GB/T9341 | 2mm/min | 53 | 52 |
| Low temperature notched impact | KJ/m2 | GB/T1843 | -50℃ | 15 | 20 |
| Appearance after aging | -- | GB/T16422 | 500h | The variation such as surface no cracking | The variation such as surface no cracking |
| Aged properties is kept | -- | GB/T16422 | 500h | 80% | Stretching strength retentivity 96% |
| Coefficient of friction | % | GB 3960 | 200min | 0.0365 | 0.0215 |
Embodiment 5
Device for carrying a tripot nylon material is hung in a kind of contact nets in electrified railways fixation of the invention, is carried out according to weight to following raw material
With part:
The PA66 that 70 parts of relative viscosities are, the PA6 that 10 parts of relative viscosities are 2.7,20 parts of low temperature resistant toughener, 1 part of high score
The lubricating and wear-resisting modifying agent of son amount organopolysiloxane class, the primary antioxidant of 0.2 part of high molecular weight hindered phenols class, 0.2 part of phosphorous
The auxiliary antioxidant of esters of gallic acid, 0.2 part of light stabilizer, 0.2 heat stabilizer, 1 part of color masterbatch.
It is of the invention it is a kind of prepare the fixed method for hanging device for carrying a tripot nylon material of above-mentioned contact nets in electrified railways, specifically according to
Following steps are implemented:
Step 1, according to weight ratio, 70 parts of PA66 of measurement, 10 parts of PA6,20 parts of low temperature resistant toughener, 1 part of lubrication are resistance to respectively
Mill modifying agent, 0.2 part of primary antioxidant, 0.2 part of auxiliary antioxidant, 0.2 part of light stabilizer, 0.2 part of heat stabilizer, 1 part
Color masterbatch；
Step 2, the PA66 and PA6 that measure through step 1 are placed under conditions of 100 DEG C and dry 5h；
Step 3, appropriate white oil is added after the PA66 obtained through step 2 and PA6 being mixed and stirs 15min, adds later
Low temperature resistant toughener, lubricating and wear-resisting modifying agent, primary antioxidant, auxiliary antioxidant, the light stabilizer, thermostabilization measured through step 1
The stirring such as agent, color masterbatch 20min obtains mixed material；
Step 4, extruder is added in mixed material step 3 obtained, and the temperature of extruder barrel is controlled at 270 DEG C
Between, the temperature of cross-head is controlled at 260 DEG C, is obtained after the extrusion of extruder, tie rod, water cooling and pelletizing final
Nylon material.
The nylon material performance test results are as follows:
| Physical property | Unit | Test method | Test condition | The similar material in market | Material of the present invention |
| Tensile strength | MPa | GB/T1040 | 50mm/min | 48 | 45 |
| Bending strength | MPa | GB/T9341 | 2mm/min | 53 | 52 |
| Low temperature notched impact | KJ/m2 | GB/T1843 | -50℃ | 15 | 22 |
| Appearance after aging | -- | GB/T16422 | 500h | The variation such as surface no cracking | The variation such as surface no cracking |
| Aged properties is kept | -- | GB/T16422 | 500h | 80% | Stretching strength retentivity 96% |
| Coefficient of friction | % | GB 3960 | 200min | 0.0365 | 0.0215 |
In conclusion the impact of material room temperature greatly improves by the low temperature resistant toughener of addition compounding, the degree punching of low temperature -50
It hits and reaches 20KJ/m2More than, it is 4 times of unmodified material.With the raising of toughener ratio, low-temperature impact is also significantly improved,
Such as embodiment five, low-temperature impact is by 15KJ/m when adding 15 parts in embodiment one at 20 parts of additive amount2It improves to 22KJ/m2.It is excellent
In the same type of material of import, cost is but substantially reduced than imported material.Light stabilizer and heat stabilizer cooperate according to a certain percentage,
Significantly improve material ultraviolet aging and heat aging.With the increase of aging auxiliary agent ratio, aging post-tensioning strength retention
It increases accordingly, in embodiment three, aging post-tensioning strength retention reaches 96% or more.The addition of wear-resisting lubricant keeps material resistance to
Mill property improves, appearance good luster, and blackness is high, and extend material uses the time.Wear-resisting lubricant increases to 1 part by 0.5 part, rubs
It wipes coefficient and is down to 0.0215 by 0.0325.In conclusion material comprehensive performance of the present invention is suitable with import same type of material, -50 DEG C
Low temperature impact strength, aging, wearability are all slightly above import same type of material.
Claims (5)
1. device for carrying a tripot nylon material is hung in a kind of fixation of contact nets in electrified railways, which is characterized in that according to weight to following raw material into
Row matches part:
60 parts of -85 parts of PA66,5 parts of -15 parts of PA6,5 parts of -20 parts of low temperature resistant toughener, the organic poly- silicon of 0.1 part of -1 part of high molecular weight
The lubricating and wear-resisting modifying agent of oxygen alkanes, the primary antioxidant of 0.1 part of -0.5 part of high molecular weight hindered phenols class, 0.1 part of -0.5 part of phosphorous
The auxiliary antioxidant of esters of gallic acid, 0.1 part of -0.5 part of light stabilizer, 0.2 part of -0.5 part of heat stabilizer, 0.5 part of -2 parts of color masterbatch.
2. device for carrying a tripot nylon material is hung in the fixation of contact nets in electrified railways shown according to claim 1, which is characterized in that described resistance to
Low temperature toughener is the compound that maleic anhydride is grafted EPDM and ethylene-octene copolymer elastomer POE.
3. device for carrying a tripot nylon material is hung in contact nets in electrified railways fixation according to claim 2, which is characterized in that described
The relative viscosity of PA66 and PA6 is between 2.7 ± 0.01.
4. a kind of prepare the fixed side for hanging device for carrying a tripot nylon material of contact nets in electrified railways of any of claims 1-3
Method, which is characterized in that be specifically implemented according to the following steps:
Step 1,60 parts of -85 parts of PA66,5 parts of -15 parts of PA6 are measured according to weight, respectively, 5 parts of -20 parts of low temperature resistant toughener, 0.1
- 1 part of lubricating and wear-resisting modifying agent of part, 0.1 part of -0.5 part of primary antioxidant, 0.1 part of -0.5 part of auxiliary antioxidant, 0.1 part -0.5 part
Light stabilizer, 0.2 part -0.5 part of heat stabilizer, 0.5 part of -2 parts of color masterbatch；
Step 2, the PA66 and PA6 that measure through step 1 are dried；
Step 3, the low temperature resistant toughener, lubricating and wear-resisting modifying agent, primary antioxidant, auxiliary antioxidant, the light that measure through step 1 is steady
Determine agent and heat stabilizer, and the PA66 and PA6 obtained through step 2 is separately added into appropriate stirring 10min-15min, adds again later
Enter the color masterbatch stirring 15min-20min measured through step 1 and obtains mixed material；
Step 4, extruder is added in mixed material step 3 obtained, and the temperature of extruder barrel is controlled at 230 DEG C -270
Between DEG C, the temperature of cross-head is controlled at 260 DEG C, is obtained after the pull-out of extruder, tie rod, water cooling and pelletizing final
Nylon material.
5. according to claim 4 prepare the fixed method for hanging device for carrying a tripot nylon material of contact nets in electrified railways, feature
It is, in the step 2, the drying temperature of PA66 and PA6 are 90 DEG C -110 DEG C, drying temperature 3h-6h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810688132.6A CN109054373A (en) | 2018-06-28 | 2018-06-28 | A kind of contact nets in electrified railways are fixed to hang device for carrying a tripot nylon material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810688132.6A CN109054373A (en) | 2018-06-28 | 2018-06-28 | A kind of contact nets in electrified railways are fixed to hang device for carrying a tripot nylon material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109054373A true CN109054373A (en) | 2018-12-21 |
Family
ID=64817760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810688132.6A Pending CN109054373A (en) | 2018-06-28 | 2018-06-28 | A kind of contact nets in electrified railways are fixed to hang device for carrying a tripot nylon material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109054373A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110329060A (en) * | 2019-08-09 | 2019-10-15 | 山东统亚模塑科技实业有限公司 | A kind of fuel tank and urea box integral structure, material and technique |
| CN111574830A (en) * | 2020-06-02 | 2020-08-25 | 西安唯实输配电技术有限公司 | Material for AB nylon sleeve of electrified railway and preparation method |
| CN111621149A (en) * | 2020-06-02 | 2020-09-04 | 西安唯实输配电技术有限公司 | Nylon material for pin type composite insulator cap-shaped connector for power grid transmission and distribution line and forming method |
| CN115746544A (en) * | 2022-10-25 | 2023-03-07 | 上海锦湖日丽塑料有限公司 | Super-tough nylon material for hot-melt plugging cover and preparation method thereof |
| CN116135928A (en) * | 2023-03-24 | 2023-05-19 | 苏州旭光聚合物有限公司 | Low-temperature-resistant PA6 material and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955664A (en) * | 2010-10-20 | 2011-01-26 | 株洲时代新材料科技股份有限公司 | Reinforced wear-resistance nylon 66 composite for textile apparatuses and preparation method thereof |
| CN102911500A (en) * | 2012-11-01 | 2013-02-06 | 镇江铁科橡塑制品有限公司 | Material for nylon elastomer coupler knuckle pin of rail wagon and preparation method of material |
| CN103450664A (en) * | 2013-08-09 | 2013-12-18 | 上海金发科技发展有限公司 | Low-temperature-resistant toughened nylon material and preparation method thereof |
| CN104004353A (en) * | 2014-05-09 | 2014-08-27 | 广州合成材料研究院有限公司 | Super-tough nylon 66 composite material and preparation method thereof |
| CN105331092A (en) * | 2014-08-07 | 2016-02-17 | 上海凯赛生物技术研发中心有限公司 | Highly wear-resistant bio-based polyamide composite material and preparation method thereof |
| CN106398200A (en) * | 2016-11-25 | 2017-02-15 | 佛山慧创正元新材料科技有限公司 | Water proof flame retardant polyamide material and preparation method thereof |
-
2018
- 2018-06-28 CN CN201810688132.6A patent/CN109054373A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955664A (en) * | 2010-10-20 | 2011-01-26 | 株洲时代新材料科技股份有限公司 | Reinforced wear-resistance nylon 66 composite for textile apparatuses and preparation method thereof |
| CN102911500A (en) * | 2012-11-01 | 2013-02-06 | 镇江铁科橡塑制品有限公司 | Material for nylon elastomer coupler knuckle pin of rail wagon and preparation method of material |
| CN103450664A (en) * | 2013-08-09 | 2013-12-18 | 上海金发科技发展有限公司 | Low-temperature-resistant toughened nylon material and preparation method thereof |
| CN104004353A (en) * | 2014-05-09 | 2014-08-27 | 广州合成材料研究院有限公司 | Super-tough nylon 66 composite material and preparation method thereof |
| CN105331092A (en) * | 2014-08-07 | 2016-02-17 | 上海凯赛生物技术研发中心有限公司 | Highly wear-resistant bio-based polyamide composite material and preparation method thereof |
| CN106398200A (en) * | 2016-11-25 | 2017-02-15 | 佛山慧创正元新材料科技有限公司 | Water proof flame retardant polyamide material and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110329060A (en) * | 2019-08-09 | 2019-10-15 | 山东统亚模塑科技实业有限公司 | A kind of fuel tank and urea box integral structure, material and technique |
| CN111574830A (en) * | 2020-06-02 | 2020-08-25 | 西安唯实输配电技术有限公司 | Material for AB nylon sleeve of electrified railway and preparation method |
| CN111621149A (en) * | 2020-06-02 | 2020-09-04 | 西安唯实输配电技术有限公司 | Nylon material for pin type composite insulator cap-shaped connector for power grid transmission and distribution line and forming method |
| CN115746544A (en) * | 2022-10-25 | 2023-03-07 | 上海锦湖日丽塑料有限公司 | Super-tough nylon material for hot-melt plugging cover and preparation method thereof |
| CN115746544B (en) * | 2022-10-25 | 2024-05-07 | 上海锦湖日丽塑料有限公司 | Super-tough nylon material for hot-melt plugging cover and preparation method thereof |
| CN116135928A (en) * | 2023-03-24 | 2023-05-19 | 苏州旭光聚合物有限公司 | Low-temperature-resistant PA6 material and preparation method thereof |
| CN116135928B (en) * | 2023-03-24 | 2024-04-26 | 苏州旭光聚合物有限公司 | Low-temperature-resistant PA6 material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109054373A (en) | A kind of contact nets in electrified railways are fixed to hang device for carrying a tripot nylon material and preparation method thereof | |
| CN108276659B (en) | High-flame-retardance high-heat-resistance MPP (modified Polypropylene) pipe and preparation method thereof | |
| CN102382411B (en) | Twisting-resistant flexible cable sheath material for wind power generation, as well as preparation method and application thereof | |
| CN110540750B (en) | Flame-retardant nylon 66 composite material and preparation method thereof | |
| CN109651691B (en) | Low-temperature-resistant oil-resistant torsion-resistant low-smoke halogen-free flame-retardant wind energy cable sheath material and preparation method and application thereof | |
| CN105907019A (en) | Halogen-free flame-retardant thermoplastic elastomer material for wires and cables and preparation method of material | |
| CN103890865A (en) | Method for manufacturing molded body for electrical wire | |
| CN105131413B (en) | High-strength high temperature-resistant silanes crosslinked cable semiconductive shieldin material and preparation method thereof | |
| CN104788917B (en) | A kind of high-antiwear self-lubricating polyethylene terephthalate and preparation method thereof | |
| CN109651801A (en) | A kind of wire and cable thermoplastic urethane elastomer composition and preparation method thereof | |
| CN106867104A (en) | New-energy electric vehicle charging pile cable environmentally friendly TPE material and preparation method thereof | |
| CN102020842A (en) | Nylon composite material special for electric wire and cable jacket and preparation method thereof | |
| CN107501924A (en) | A kind of graphene, continuous glass-fiber collaboration reinforced polyamide composite and preparation method thereof | |
| CN107987516B (en) | TPU/terpolymer nylon composite halogen-free flame-retardant cable material and preparation method thereof | |
| CN110256829A (en) | A kind of high flowing polycarbonate compositions and its preparation method and application | |
| CN107987520A (en) | A kind of high tenacity PA/ABS alloy materials and preparation method thereof | |
| KR102316905B1 (en) | Wire and Cable Covering Compositions of PA6/66 Copolymer Base Resin for Improved Processability and Properties | |
| CN108299803B (en) | High-flame-retardant transparent PET material and preparation method thereof | |
| CN107033523A (en) | Electric wire halogen-free flame-retardant thermoplastic elastomer composition of anti-UV discolorations and preparation method thereof | |
| CN101358027A (en) | Polyphenylene ether resin composition and method of preparing the same | |
| CN105219006B (en) | The automotive line heat-resisting weather-proof polypropylene nano-composite insulating material of halogen-free flameproof and its preparation technology | |
| CN107418126B (en) | Wire and cable wear-resisting high-flame-retardanthalogen-free halogen-free flame-retardant thermoplastic elastomer composition and preparation method thereof | |
| CN105860545B (en) | Siliceous polycarbonate and preparation method thereof | |
| Chen et al. | Mechanical properties, flame retardancy, hot‐air ageing, and hot‐oil ageing resistance of ethylene‐vinyl acetate rubber/hydrogenated nitrile‐butadiene rubber/magnesium hydroxide composites | |
| CN106543706B (en) | A kind of wire and cable nylon sheath wire material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181221 |