CN103483810A - Preparation method for wear resistance nylon 6 containing novel antioxidant - Google Patents

Preparation method for wear resistance nylon 6 containing novel antioxidant Download PDF

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Publication number
CN103483810A
CN103483810A CN201310412000.8A CN201310412000A CN103483810A CN 103483810 A CN103483810 A CN 103483810A CN 201310412000 A CN201310412000 A CN 201310412000A CN 103483810 A CN103483810 A CN 103483810A
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antioxidant
gram
nylon
wear resistant
preparation
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CN103483810B (en
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沈国璋
程亚军
肖颖
付俊
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Ningbo Jindi Engineering Plastic Co ltd
Ningbo Institute of Material Technology and Engineering of CAS
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Ningbo Jindi Engineering Plastic Co ltd
Ningbo Institute of Material Technology and Engineering of CAS
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0881—Titanium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3009—Sulfides

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention relates to a preparation method for wear resistance nylon PA6 containing a novel antioxidant, wherein 100 parts of wear resistance nylon PA6, 5-20 parts of a wear resistance agent molybdenum disulfide, 1-5 parts of a wear resistance agent titanium dioxide, 0.1-1 part of an organic antioxidant, and 0.1-1 part of a metal antioxidant titanium powder are uniformly mixed and then are subjected to melting extrusion granulation through a twin-screw extruder to prepare the wear resistance nylon PA6. The wear resistance nylon PA6 has excellent wear resistance and good mechanical property.

Description

A kind of preparation method of the wear resistant nylon that contains novel antioxidant 6
Technical field
The present invention relates to a kind of preparation method of wear resistant nylon 6, especially a kind of preparation method of the wear resistant nylon that contains novel antioxidant 6.
Background technology
Nylon 6 is a kind of very important engineering plastics, the mechanical property excellence, and the thermodynamics texturing temperature is high, and frictional coefficient is low, is widely used in all kinds of wear resistant appliances.In order further to increase the wear resistance of nylon 6, the main employing added the frictional coefficient that inorganic wear resistant filler reduces material at present.The patent No. is a kind of in graphite, silicon carbide or molybdenumdisulphide for the Chinese patent of CN102757641 A provides a kind of preparation method of high-ductility abrasion-proof nylon, use therein anti-wear agent.Molybdenumdisulphide is a kind of cheap, and the anti-wear agent of excellent performance can improve the wear resistance of nylon greatly.But molybdenumdisulphide easily is oxidized to the molybdic oxide crystal without wear resistance when high temperature.Because nylon 6 temperature in the course of processing is high, so molybdenumdisulphide easily lost efficacy, and caused the wear resisting property of nylon 6 to can not get significantly improving.Common organic antioxidant can't stop molybdenumdisulphide deterioration by oxidation in the course of processing, therefore needs to find a kind of novel antioxidant and suppresses molybdenumdisulphide oxidation in the high temperature process process, at utmost improving the wear resistance of nylon 6.
Summary of the invention
Purpose of the present invention is exactly for the deficiencies in the prior art, and a kind of preparation method of the wear resistant nylon that contains novel antioxidant 6 is provided.
The present invention to the effect that adopts metallic titanium powder jointly to use as antioxidant and traditional organic antioxidant, suppresses the oxidation of material.
The inventive method is specifically:
Step (1). following each raw material of weighing: the molybdenumdisulphide that the nylon that parts by weight are 100 parts is 6,5～20 parts, the titanium dioxide of 1～5 part, the organic oxidation-resistant agent of 0.1～1 part, the metallic titanium powder of 0.1～1 part.
Described nylon 6 is common unmodified resin PA6, and fusing point is 225～235 ℃;
Described molybdenumdisulphide is of a size of 1～10 micron, as anti-wear agent, uses;
Described titanium dioxide is of a size of 50～200 nanometers, as anti-wear agent, uses;
Described organic oxidation-resistant agent is one or more in antioxidant B215, antioxidant B225, antioxidant 1010, antioxidant 1076;
Described metallic titanium powder is of a size of 1～10 micron, as antioxidant, uses.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 300～800rpm and mixes 3～10 minutes, obtain compound.
Step (3). above-mentioned compound is joined to extruding pelletization in twin screw extruder; the dicing machine pelletizing that in the tank that is 15～40 ℃ through temperature, water-cooled, rotating speed are 300～800rpm is placed on 70～110 ℃ of lower vacuum-dryings 5～10 hours, obtains wear resistant nylon 6 particles.
The screw speed of described twin screw extruder is 80～250rpm, and in the course of processing, processing temperature is 210～230 ℃ of feeding sections, 230～250 ℃ of fluxing zones, 240～270 ℃ of homogenizing zones, 210～240 ℃ of head temperatures.
The inventive method adopts metallic titanium powder as composite antioxidant, can effectively suppress molybdenumdisulphide deterioration by oxidation in the high temperature process process.The wear resistant nylon 6 mechanical property excellences that this legal system is standby, wear resistance is good, is prepared into long service life after device.
Embodiment
Below in conjunction with specific embodiment, the present invention is further analyzed.
Comparative Examples 1.
Step (1). weighing 1000 gram nylon 6,150 gram molybdenumdisulphide, 20 gram titanium dioxide, 3 gram antioxidant B225.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 300rpm and mixes 10 minutes, obtain compound.
Step (3). above-mentioned compound is joined to extruding pelletization in the twin screw extruder that screw speed is 100rpm; twin screw extruder processing temperature in the course of processing is 210 ℃ of feeding sections; 230 ℃ of fluxing zones; 240 ℃ of homogenizing zones; 210 ℃ of head temperatures; then, after the tank water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 400rpm, 80 ℃ of lower vacuum-dryings 10 hours, obtain wear resistant nylon 6 particles.
Wear resistant nylon 66 physicalies of table 1 Comparative Examples 1 preparation.
Performance Testing standard Unit Numerical value
Tensile strength ASTM-D 638 MPa 120
Flexural strength ASTM-D 790 MPa 155
Modulus in flexure ASTM-D 791 MPa 6100
Frictional coefficient GB 3960-83 Kinetic friction 0.23
Wear resistant nylon 66 tensile strengths of Comparative Examples 1 preparation are 120MPa, and flexural strength is 155MPa, and modulus in flexure is 6100 MPa, and kinetic friction coefficient is 0.23.
Embodiment 1.
Step (1). weighing 1000 gram nylon 6,150 gram molybdenumdisulphide, 20 gram titanium dioxide, 3 gram antioxidant B225,5 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 300rpm and mixes 10 minutes, obtain compound.
Step (3). above-mentioned compound is joined to extruding pelletization in the twin screw extruder that screw speed is 100rpm; twin screw extruder processing temperature in the course of processing is 210 ℃ of feeding sections; 230 ℃ of fluxing zones; 240 ℃ of homogenizing zones; 210 ℃ of head temperatures; then, after the tank water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 400rpm, 80 ℃ of lower vacuum-dryings 10 hours, obtain wear resistant nylon 6 particles.
The wear resistant nylon 6 mechanical property excellences of embodiment 1 preparation, wear resistance is good, and wherein tensile strength is 143MPa, and flexural strength is 200 MPa, and modulus in flexure is 7000 MPa, kinetic friction coefficient is 0.13.Contrast according to Comparative Examples 1 with embodiment 1, illustrate wear resistant nylon 6 materials all prepared lower than the inventive method by the wear resistant nylon 6 sample mechanical properties of not adding titanium valve and wear resisting property.
Wear resistant nylon 66 physicalies of table 2 embodiment 1 preparation.
Performance Testing standard Unit Numerical value
Tensile strength ASTM-D 638 MPa 143
Flexural strength ASTM-D 790 MPa 200
Modulus in flexure ASTM-D 791 MPa 7000
Frictional coefficient GB 3960-83 Kinetic friction 0.13
Embodiment 2.
Step (1). weighing 1000 gram nylon 6,50 gram molybdenumdisulphide, 50 gram titanium dioxide, 10 gram antioxidant B225,10 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 800rpm and mixes 3 minutes, obtain compound.
Step (3). extruding pelletization in the twin screw extruder that is 150rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is 230 ℃ of feeding sections; 250 ℃ of fluxing zones; 270 ℃ of homogenizing zones; 230 ℃ of head temperatures; then after the ionized water water-cooled that to be placed in temperature be 15 ℃, the dicing machine pelletizing that rotating speed is 300rpm, be placed in 70 ℃ of lower vacuum-dryings 5 hours, obtain wear resistant nylon 6 particles.
Embodiment 3.
Step (1). weighing 1000 gram nylon 6,200 gram molybdenumdisulphide, 10 gram titanium dioxide, 1g antioxidant B215,6 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 500rpm and mixes 5 minutes, obtain compound.
Step (3). extruding pelletization in the twin screw extruder that is 150rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is 220 ℃ of feeding sections; 240 ℃ of fluxing zones; 255 ℃ of homogenizing zones; 220 ℃ of head temperatures; then the be placed in temperature tank water-cooled that is 40 ℃, the pelletizing that rotating speed is the 800rpm dicing machine, 110 ℃ of lower vacuum-dryings 8 hours, obtain wear resistant nylon 6 particles.
Embodiment 4.
Step (1) weighing 1000 gram nylon 6,100 gram molybdenumdisulphide, 30 gram titanium dioxide, 3 gram antioxidant B215,2 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 600rpm and mixes 8 minutes, obtain compound.
Step (3). extruding pelletization in the twin screw extruder that is 150rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is 215 ℃ of feeding sections; 235 ℃ of fluxing zones; 250 ℃ of homogenizing zones; 215 ℃ of head temperatures; then after the tank water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 600rpm, be placed in 100 ℃ of lower vacuum-dryings 8 hours, obtain wear resistant nylon 6 particles.
Embodiment 5.
Step (1). weighing 1000 gram nylon 6,100 gram molybdenumdisulphide, 30 gram titanium dioxide, 3 gram antioxidant 1010s, 2 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 600rpm and mixes 8 minutes, obtain compound.
Step (3). extruding pelletization in the twin screw extruder that is 150rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is 215 ℃ of feeding sections; 235 ℃ of fluxing zones; 250 ℃ of homogenizing zones; 215 ℃ of head temperatures; then, after the tank water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 600rpm, 100 ℃ of lower vacuum-dryings 8 hours, obtain wear resistant nylon 6 particles.
Embodiment 6.
Step (1). weighing 1000 gram nylon 6,100 gram molybdenumdisulphide, 30 gram titanium dioxide, 3 gram antioxidant 1076,2 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 600rpm and mixes 8 minutes, obtain compound.
Step (3). extruding pelletization in the twin screw extruder that is 150rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is 215 ℃ of feeding sections; 235 ℃ of fluxing zones; 250 ℃ of homogenizing zones; 215 ℃ of head temperatures; then, after the tank water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 600rpm, 100 ℃ of lower vacuum-dryings 9.5 hours, obtain wear resistant nylon 6 particles.
Embodiment 7.
Step (1). weighing 1000 gram nylon 6,100 gram molybdenumdisulphide, 30 gram titanium dioxide, 3 gram antioxidant B215,3 gram antioxidant B225,1 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 600rpm and mixes 8 minutes, obtain compound.
Step (3). by above-mentioned compound extruding pelletization in the twin screw extruder of screw speed 150rpm; twin screw extruder processing temperature in the course of processing is 215 ℃ of feeding sections; 235 ℃ of fluxing zones; 250 ℃ of homogenizing zones; 215 ℃ of head temperatures; then, after the tank water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 600rpm, 100 ℃ of lower vacuum-dryings 6 hours, obtain wear resistant nylon 6 particles.
Embodiment 8.
Step (1). weighing 1000 gram nylon 6,100 gram molybdenumdisulphide, 30 gram titanium dioxide, 2 gram antioxidant B215,2 gram antioxidant 1010s, 2 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 600rpm and mixes 8 minutes, obtain compound.
Step (3). extruding pelletization in the twin screw extruder that is 150rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is 215 ℃ of feeding sections; 235 ℃ of fluxing zones; 250 ℃ of homogenizing zones; 215 ℃ of head temperatures; then, after the dicing machine pelletizing that in the tank that to be placed at temperature be 25 ℃, water-cooled, rotating speed are 600rpm, 100 ℃ of lower vacuum-dryings 7 hours, obtain wear resistant nylon 6 particles.
Embodiment 9.
Step (1) weighing 1000 gram nylon 6,100 gram molybdenumdisulphide, 30 gram titanium dioxide, 3 gram antioxidant B215,5 gram antioxidant 1076,2 gram metallic titanium powder.
Step (2). mix 8 minutes in the high-speed mixer that is 600rpm at rotating speed by above-mentioned raw materials, obtain compound.
Step (3). extruding pelletization in the twin screw extruder that is 150rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is 215 ℃ of feeding sections; 235 ℃ of fluxing zones; 250 ℃ of homogenizing zones; 215 ℃ of head temperatures; then the tank water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 600rpm are thick, 100 ℃ of lower vacuum-dryings 8 hours, obtain wear resistant nylon 6 particles.
Embodiment 10.
Step (1). weighing 1000 gram nylon 6,100 gram molybdenumdisulphide, 30 gram titanium dioxide, 3 gram antioxidant B225,1 gram antioxidant 1010,2 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 600rpm and mixes 8 minutes, obtain compound.
Step (3). extruding pelletization in the twin screw extruder that is 80rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is 215 ℃ of feeding sections; 235 ℃ of fluxing zones; 250 ℃ of homogenizing zones; 215 ℃ of head temperatures; then, after the tank water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 600rpm, 100 ℃ of lower vacuum-dryings 9 hours, obtain wear resistant nylon 6 particles.
Embodiment 11.
Step (1). weighing 1000 gram nylon 6,100 gram molybdenumdisulphide, 30 gram titanium dioxide, 5 gram antioxidant B225,5 gram antioxidant 1076,2 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 600rpm and mixes 8 minutes, obtain compound.
Step (3). extruding pelletization in the twin screw extruder that is 80rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is 215 ℃ of feeding sections; 235 ℃ of fluxing zones; 250 ℃ of homogenizing zones; 215 ℃ of head temperatures; then, after the tank water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 600rpm, 100 ℃ of lower vacuum-dryings 5.5 hours, obtain wear resistant nylon 6 particles.
Embodiment 12.
Step (1). weighing 1000 gram nylon 6,100 gram molybdenumdisulphide, 30 gram titanium dioxide, 4 gram antioxidant 1010s, 2 gram antioxidant 1076,2 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 600rpm and mixes 8 minutes, obtain compound.
Step (3). extruding pelletization in the twin screw extruder that is 80rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is 215 ℃ of feeding sections; 235 ℃ of fluxing zones; 250 ℃ of homogenizing zones; 215 ℃ of head temperatures; then, after the tank water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 600rpm, 100 ℃ of lower vacuum-dryings 8 hours, obtain wear resistant nylon 6 particles.
Embodiment 13.
Step (1). weighing 1000 gram nylon 6,100 gram molybdenumdisulphide, 30 gram titanium dioxide, 3 gram antioxidant B215,3 gram antioxidant B225,3 gram antioxidant 1010s, 2 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 600rpm and mixes 8 minutes, obtain compound.
Step (3). extruding pelletization in the twin screw extruder that is 100rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is 215 ℃ of feeding sections; 235 ℃ of fluxing zones; 250 ℃ of homogenizing zones; 215 ℃ of head temperatures; then, after the tank water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 600rpm, 100 ℃ of lower vacuum-dryings 8 hours, obtain wear resistant nylon 6 particles.
Embodiment 14.
Step (1). weighing 1000 gram nylon 6,100 gram molybdenumdisulphide, 30 gram titanium dioxide, 2 gram antioxidant B215,1 gram antioxidant 1010,3 gram antioxidant 1076,2 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 600rpm and mixes 8 minutes, obtain compound.
Step (3). by above-mentioned compound extruding pelletization in the twin screw extruder of screw speed 150rpm; twin screw extruder processing temperature in the course of processing is 215 ℃ of feeding sections; 235 ℃ of fluxing zones; 250 ℃ of homogenizing zones; 215 ℃ of head temperatures; then, after the tank water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 600rpm, 100 ℃ of lower vacuum-dryings 8 hours, obtain wear resistant nylon 6 particles.
Embodiment 15.
Step (1). weighing 1000 gram nylon 6,100 gram molybdenumdisulphide, 30 gram titanium dioxide, 3 gram antioxidant B225,3 gram antioxidant 1010s, 4 gram antioxidant 1076,2 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 600rpm and mixes 8 minutes, obtain compound.
Step (3). extruding pelletization in the twin screw extruder that is 200rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is 215 ℃ of feeding sections; 235 ℃ of fluxing zones; 250 ℃ of homogenizing zones; 215 ℃ of head temperatures; then, after the tank water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 600rpm, 100 ℃ of lower vacuum-dryings 6.5 hours, obtain wear resistant nylon 6 particles.
Embodiment 16.
Step (1). weighing 1000 gram nylon 6,100 gram molybdenumdisulphide, 30 gram titanium dioxide, 1 gram antioxidant B215,1 gram antioxidant B225,1 gram antioxidant 1076,2 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 600rpm and mixes 8 minutes, obtain compound.
Step (3). extruding pelletization in the twin screw extruder that is 250rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is 215 ℃ of feeding sections; 235 ℃ of fluxing zones; 250 ℃ of homogenizing zones; 215 ℃ of head temperatures; then, after the water coolant water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 600rpm, 100 ℃ of lower vacuum-dryings 8 hours, obtain wear resistant nylon 6 particles.
Embodiment 17.
Step (1). weighing 1000 gram nylon 6,100 gram molybdenumdisulphide, 35 gram titanium dioxide, 3 gram antioxidant B215,2 gram antioxidant B225,2 gram antioxidant 1010s, 2 gram antioxidant 1076,2 gram metallic titanium powder.
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 600rpm and mixes 8 minutes, obtain compound.
Step (3). extruding pelletization in the twin screw extruder that is 250rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is 215 ℃ of feeding sections; 235 ℃ of fluxing zones; 250 ℃ of homogenizing zones; 240 ℃ of head temperatures; then, after the water coolant water-cooled that to be placed in temperature be 25 ℃, the dicing machine pelletizing that rotating speed is 600rpm, 100 ℃ of lower vacuum-dryings 10 hours, obtain wear resistant nylon 6 particles.
The nylon 6 used in above-mentioned all embodiment is common unmodified resin PA6, and fusing point is 225～235 ℃; Molybdenumdisulphide is of a size of 1～10 micron; Titanium dioxide is of a size of 50～200 nanometers; Metallic titanium powder is of a size of 1～10 micron.
Above-described embodiment is not that the present invention is not limited only to above-described embodiment for restriction of the present invention, as long as meet requirement of the present invention, all belongs to protection scope of the present invention.

Claims (7)

1. the preparation method of a wear resistant nylon that contains novel antioxidant 6 is characterized in that the method comprises the following steps:
Step (1). following each raw material of weighing: the molybdenumdisulphide that the nylon that parts by weight are 100 parts is 6,5～20 parts, the titanium dioxide of 1～5 part, the organic oxidation-resistant agent of 0.1～1 part, the metallic titanium powder of 0.1～1 part;
Step (2). above-mentioned raw materials is joined in the high-speed mixer that rotating speed is 300～800rpm and mixes 3～10 minutes, obtain compound;
Step (3). above-mentioned compound is joined to extruding pelletization in twin screw extruder; the dicing machine pelletizing that the tank water-cooled that is 15～40 ℃ through temperature, rotating speed are 300～800rpm is placed on 70～110 ℃ of lower vacuum-dryings 5～10 hours, obtains wear resistant nylon 6 particles.
2. the preparation method of a kind of wear resistant nylon that contains novel antioxidant 6 as claimed in claim 1, is characterized in that described nylon 6 is common unmodified resin PA6, and fusing point is 225～235 ℃.
3. the preparation method of a kind of wear resistant nylon that contains novel antioxidant 6 as claimed in claim 1, is characterized in that described molybdenumdisulphide is of a size of 1～10 micron, uses as anti-wear agent.
4. the preparation method of a kind of wear resistant nylon that contains novel antioxidant 6 as claimed in claim 1, is characterized in that described titanium dioxide is of a size of 50～200 nanometers, uses as anti-wear agent.
5. the preparation method of a kind of wear resistant nylon that contains novel antioxidant 6 as claimed in claim 1, is characterized in that described organic oxidation-resistant agent is one or more in antioxidant B215, antioxidant B225, antioxidant 1010, antioxidant 1076.
6. the preparation method of a kind of wear resistant nylon that contains novel antioxidant 6 as claimed in claim 1, is characterized in that described metallic titanium powder is of a size of 1～10 micron, uses as antioxidant.
7. the preparation method of a kind of wear resistant nylon that contains novel antioxidant 6 as claimed in claim 1, the screw speed that it is characterized in that described twin screw extruder is 80～250rpm, in the course of processing, processing temperature is 210～230 ℃ of feeding sections, 230～250 ℃ of fluxing zones, 240～270 ℃ of homogenizing zones, 210～230 ℃ of head temperatures.
CN201310412000.8A 2013-09-11 2013-09-11 A kind of preparation method of the wear resistant nylon 6 containing novel antioxidant Active CN103483810B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114990729A (en) * 2022-06-15 2022-09-02 广州明晖新材料有限公司 Wear-resistant nylon yarn and preparation method thereof

Citations (3)

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CN102757641A (en) * 2012-08-10 2012-10-31 平顶山亚塑工业有限公司 High toughness and wear resistant nylon and preparation method thereof
CN102787003A (en) * 2012-09-03 2012-11-21 通化七星润滑油制造有限责任公司 Compound lubricating grease and preparation method of compound lubricating grease

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CN101838576A (en) * 2009-03-20 2010-09-22 中国科学院宁波材料技术与工程研究所 Dry film lubricant based on modified epoxy resin and preparation method thereof
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Publication number Priority date Publication date Assignee Title
CN114990729A (en) * 2022-06-15 2022-09-02 广州明晖新材料有限公司 Wear-resistant nylon yarn and preparation method thereof

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