CN103483812B - A kind of preparation method of the wear resistant nylon 66 containing antioxidant - Google Patents

A kind of preparation method of the wear resistant nylon 66 containing antioxidant Download PDF

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CN103483812B
CN103483812B CN201310411999.4A CN201310411999A CN103483812B CN 103483812 B CN103483812 B CN 103483812B CN 201310411999 A CN201310411999 A CN 201310411999A CN 103483812 B CN103483812 B CN 103483812B
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antioxidant
wear resistant
resistant nylon
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CN103483812A (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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  • 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)
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Abstract

The present invention relates to a kind of preparation method containing novel antioxidant wear resistant nylon PA66.By wear resistant nylon PA66? 100 parts, anti-wear agent molybdenumdisulphide 5 ~ 20 parts, anti-wear agent titanium dioxide 1 ~ 5 part, organic oxidation-resistant agent 0.1 ~ 1 part, after metal oxidation resistance agent titanium valve 0.1 ~ 1 part mixes, melt extrude preparation through twin screw and become wear resistant nylon PA66.Wear resistant nylon PA66 prepared by the inventive method has excellent wear resisting property and good mechanical property.

Description

A kind of preparation method of the wear resistant nylon 66 containing antioxidant
Technical field
The present invention relates to a kind of preparation method of wear resistant nylon 66, especially a kind of preparation method of the wear resistant nylon 66 containing novel antioxidant.
Background technology
Nylon66 fiber is a kind of very important engineering plastics, and mechanical property is excellent, and thermodynamics texturing temperature is high, and frictional coefficient is low, is widely used in all kinds of wear resistant appliance.In order to increase the wear resistance of nylon66 fiber further, main employing adds the frictional coefficient that inorganic wear resistant filler reduces material at present.The patent No. is the preparation method that the Chinese patent of CN102757641A provides a kind of high-ductility abrasion-proof nylon, and the anti-wear agent wherein used is graphite, one in silicon carbide or molybdenumdisulphide.Molybdenumdisulphide is a kind of cheap, and the anti-wear agent of excellent performance, can improve the wear resistance of nylon greatly.But molybdenumdisulphide is easily oxidized to the molybdic oxide crystal without wear resistance when high temperature.Because nylon66 fiber temperature in the course of processing is high, therefore molybdenumdisulphide easily lost efficacy, and caused the wear resisting property of nylon66 fiber to can not get significantly improving.Common organic antioxidant cannot stop molybdenumdisulphide deterioration by oxidation in the course of processing, therefore needs to find a kind of novel antioxidant and suppresses molybdenumdisulphide to be oxidized in high temperature working processes, at utmost improving the wear resistance of nylon66 fiber.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, a kind of preparation method of the wear resistant nylon 66 containing novel antioxidant 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). weigh following raw material: parts by weight are the nylon66 fiber of 100 parts, the molybdenumdisulphide of 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 nylon66 fiber is common unmodified resin PA66, and fusing point is 255 ~ 265 DEG C;
Described molybdenumdisulphide is of a size of 1 ~ 10 micron, uses as anti-wear agent;
Described titanium dioxide is of a size of 50 ~ 200 nanometers, uses as anti-wear agent;
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, uses as antioxidant.
Step (2). above-mentioned raw materials being joined rotating speed is mix 3 ~ 10 minutes in the high-speed mixer of 300 ~ 800rpm, obtains compound.
Step (3). above-mentioned compound is joined extruding pelletization in twin screw extruder; at the dicing machine pelletizing that is 300 ~ 800rpm of temperature be 15 ~ 40 DEG C tank water-cooled, rotating speed is placed on 70 ~ 110 DEG C, vacuum-drying 5 ~ 10 hours, obtains wear resistant nylon 66 particle.
The screw speed of described twin screw extruder is 80 ~ 250rpm, and in the course of processing, processing temperature is feeding section 240 ~ 260 DEG C, fluxing zone 260 ~ 280 DEG C, homogenizing zone 270 ~ 300 DEG C, head temperature 240 ~ 260 DEG C.
The inventive method adopts metallic titanium powder as composite antioxidant, effectively can suppress molybdenumdisulphide deterioration by oxidation in high temperature working processes.Standby wear resistant nylon 66 mechanical property of this legal system is excellent, and 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 example 1.
Step (1). weigh 1000 grams of nylon66 fiber, 150 grams of molybdenumdisulphide, 20 grams of titanium dioxide, 3 grams of antioxidant B225.
Step (2). above-mentioned raw materials being joined rotating speed is mix 10 minutes in the high-speed mixer of 300rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 100rpm; twin screw extruder processing temperature in the course of processing is feeding section 240 DEG C; fluxing zone 260 DEG C; homogenizing zone 270 DEG C; head temperature 240 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 400rpm, and vacuum-drying 10 hours at 80 DEG C, obtains wear resistant nylon 66 particle.
Wear resistant nylon 66 physicals prepared by table 1 comparative example 1.
Performance Testing standard Unit Numerical value
Tensile strength ASTM-D 638 MPa 124
Flexural strength ASTM-D 790 MPa 159
Modulus in flexure ASTM-D 791 MPa 6500
Frictional coefficient GB 3960-83 Kinetic friction 0.22
Wear resistant nylon 66 tensile strength prepared by comparative example 1 is 124MPa, and flexural strength is 159MPa, and modulus in flexure is 6500MPa, and kinetic friction coefficient is 0.22.
Embodiment 1.
Step (1). weigh 1000 grams of nylon66 fiber, 150 grams of molybdenumdisulphide, 20 grams of titanium dioxide, 3 grams of antioxidant B225,5 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 10 minutes in the high-speed mixer of 300rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 100rpm; twin screw extruder processing temperature in the course of processing is feeding section 240 DEG C; fluxing zone 260 DEG C; homogenizing zone 270 DEG C; head temperature 240 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 400rpm, and vacuum-drying 10 hours at 80 DEG C, obtains wear resistant nylon 66 particle.
Wear resistant nylon 66 excellent in mechanical performance prepared by embodiment 1, wear resistance is good, and wherein tensile strength is 153MPa, and flexural strength is 208MPa, and modulus in flexure is 7400MPa, and kinetic friction coefficient is 0.12.According to the contrast of comparative example 1 with embodiment 1, illustrate that the wear resistant nylon 66 sample mechanical property and wear resisting property of not adding titanium valve are all lower than wear resistant nylon 66 material prepared by the inventive method.
Wear resistant nylon 66 physicals prepared by table 2 embodiment 1.
Performance Testing standard Unit Numerical value
Tensile strength ASTM-D 638 MPa 153
Flexural strength ASTM-D 790 MPa 208
Modulus in flexure ASTM-D 791 MPa 7400
Frictional coefficient GB 3960-83 Kinetic friction 0.12
Embodiment 2.
Step (1). weigh 1000 grams of nylon66 fiber, 50 grams of molybdenumdisulphide, 50 grams of titanium dioxide, 10 grams of antioxidant B225,10 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 3 minutes in the high-speed mixer of 800rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 80rpm; twin screw extruder processing temperature in the course of processing is feeding section 260 DEG C; fluxing zone 280 DEG C; homogenizing zone 300 DEG C; head temperature 260 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 15 DEG C is after the dicing machine pelletizing of 300rpm, and vacuum-drying 5 hours at 70 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 3.
Step (1). weigh 1000 grams of nylon66 fiber, 200 grams of molybdenumdisulphide, 10 grams of titanium dioxide, 1g antioxidant B215,6 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 5 minutes in the high-speed mixer of 500rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 250rpm; twin screw extruder processing temperature in the course of processing is feeding section 250 DEG C; fluxing zone 270 DEG C; homogenizing zone 285 DEG C; head temperature 250 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 40 DEG C is after the dicing machine pelletizing of 800rpm, and vacuum-drying 6 hours at 110 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 4.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 30 grams of titanium dioxide, 3 grams of antioxidant B215,2 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 8 minutes in the high-speed mixer of 600rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 120rpm; twin screw extruder processing temperature in the course of processing is feeding section 255 DEG C; fluxing zone 275 DEG C; homogenizing zone 290 DEG C; head temperature 255 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 600rpm, and vacuum-drying 7 hours at 100 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 5.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 30 grams of titanium dioxide, 3 grams of antioxidant 1010s, 2 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 7 minutes in the high-speed mixer of 700rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 160rpm; twin screw extruder processing temperature in the course of processing is feeding section 245 DEG C; fluxing zone 265 DEG C; homogenizing zone 280 DEG C; head temperature 245 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 30 DEG C is after the dicing machine pelletizing of 700rpm, and vacuum-drying 8 hours at 110 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 6.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 30 grams of titanium dioxide, 3 grams of antioxidants, 1076,2 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 8 minutes in the high-speed mixer of 600rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 220rpm; twin screw extruder processing temperature in the course of processing is feeding section 255 DEG C; fluxing zone 275 DEG C; homogenizing zone 280 DEG C; head temperature 255 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 650rpm, and vacuum-drying 9.5 hours at 100 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 7.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 30 grams of titanium dioxide, 3 grams of antioxidant B215,3 grams of antioxidant B225,2 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 8 minutes in the high-speed mixer of 600rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in 200rpm twin screw extruder; twin screw extruder processing temperature in the course of processing is feeding section 250 DEG C; fluxing zone 270 DEG C; homogenizing zone 280 DEG C; head temperature 255 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 600rpm, and vacuum-drying 6 hours at 100 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 8.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 30 grams of titanium dioxide, 2 grams of antioxidant B215,2 grams of antioxidant 1010s, 2 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 6 minutes in the high-speed mixer of 700rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 210rpm; twin screw extruder processing temperature in the course of processing is feeding section 255 DEG C; fluxing zone 275 DEG C; homogenizing zone 290 DEG C; head temperature 255 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 500rpm, and vacuum-drying 7 hours at 75 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 9.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 30 grams of titanium dioxide, 3 grams of antioxidant B215,5 grams of antioxidants, 1076,2 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 8 minutes in the high-speed mixer of 600rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 190rpm; twin screw extruder processing temperature in the course of processing is feeding section 255 DEG C; fluxing zone 275 DEG C; homogenizing zone 300 DEG C; head temperature 255 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 600rpm, and vacuum-drying 8 hours at 100 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 10.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 30 grams of titanium dioxide, 3 grams of antioxidant B225,1 gram of antioxidant 1010,2 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 8 minutes in the high-speed mixer of 600rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 230rpm; twin screw extruder processing temperature in the course of processing is feeding section 255 DEG C; fluxing zone 275 DEG C; homogenizing zone 280 DEG C; head temperature 255 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 600rpm, and vacuum-drying 9 hours at 100 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 11.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 30 grams of titanium dioxide, 5 grams of antioxidant B225,5 grams of antioxidants, 1076,2 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 9 minutes in the high-speed mixer of 600rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 170rpm; twin screw extruder processing temperature in the course of processing is feeding section 250 DEG C; fluxing zone 265 DEG C; homogenizing zone 290 DEG C; head temperature 260 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 600rpm, and vacuum-drying 5.5 hours at 100 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 12.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 30 grams of titanium dioxide, 4 grams of antioxidant 1010s, 2 grams of antioxidants, 1076,2 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 8 minutes in the high-speed mixer of 600rpm, obtains compound.
Step (3). be extruding pelletization in the twin screw extruder of 150rpm at screw speed by above-mentioned compound; twin screw extruder processing temperature in the course of processing is feeding section 240 DEG C; fluxing zone 260 DEG C; homogenizing zone 275 DEG C; head temperature 245 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 600rpm, and vacuum-drying 8 hours at 100 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 13.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 30 grams of titanium dioxide, 3 grams of antioxidant B215,3 grams of antioxidant B225,3 grams of antioxidant 1010s, 2 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 8 minutes in the high-speed mixer of 600rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 130rpm; twin screw extruder processing temperature in the course of processing is feeding section 255 DEG C; fluxing zone 265 DEG C; homogenizing zone 295 DEG C; head temperature 240 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 35 DEG C is after the dicing machine pelletizing of 600rpm, and vacuum-drying 8 hours at 100 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 14.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 30 grams of titanium dioxide, 2 grams of antioxidant B215,1 gram of antioxidant 1010,3 grams of antioxidants, 1076,2 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 8 minutes in the high-speed mixer of 600rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 160rpm; twin screw extruder processing temperature in the course of processing is feeding section 255 DEG C; fluxing zone 275 DEG C; homogenizing zone 280 DEG C; head temperature 260 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 600rpm, and vacuum-drying 8 hours at 100 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 15.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 30 grams of titanium dioxide, 3 grams of antioxidant B225,3 grams of antioxidant 1010s, 4 grams of antioxidants, 1076,2 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 8 minutes in the high-speed mixer of 600rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 250rpm; twin screw extruder processing temperature in the course of processing is feeding section 245 DEG C; fluxing zone 275 DEG C; homogenizing zone 290 DEG C; head temperature 245 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 600rpm, and vacuum-drying 6.5 hours at 100 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 16.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 30 grams of titanium dioxide, 1 gram of antioxidant B215,1 gram of antioxidant B225,1 gram of antioxidant, 1076,2 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 8 minutes in the high-speed mixer of 600rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 100rpm; twin screw extruder processing temperature in the course of processing is feeding section 260 DEG C; fluxing zone 270 DEG C; homogenizing zone 280 DEG C; head temperature 250 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 600rpm, and vacuum-drying 8 hours at 100 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 17.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 35 grams of titanium dioxide, 3 grams of antioxidant B215,2 grams of antioxidant B225,2 grams of antioxidant 1010s, 2 grams of antioxidants, 1076,2 grams of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 8 minutes in the high-speed mixer of 650rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 80rpm; twin screw extruder processing temperature in the course of processing is feeding section 240 DEG C; fluxing zone 280 DEG C; homogenizing zone 300 DEG C; head temperature 260 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 600rpm, and vacuum-drying 10 hours at 100 DEG C, obtains wear resistant nylon 66 particle.
Embodiment 18.
Step (1). weigh 1000 grams of nylon66 fiber, 100 grams of molybdenumdisulphide, 50 grams of titanium dioxide, 1 gram of antioxidant, 1076,1 gram of metallic titanium powder.
Step (2). above-mentioned raw materials being joined rotating speed is mix 8 minutes in the high-speed mixer of 650rpm, obtains compound.
Step (3). above-mentioned compound being joined screw speed is extruding pelletization in the twin screw extruder of 200rpm; twin screw extruder processing temperature in the course of processing is feeding section 240 DEG C; fluxing zone 280 DEG C; homogenizing zone 300 DEG C; head temperature 260 DEG C; then to be placed in temperature be tank water-cooled, the rotating speed of 25 DEG C is after the dicing machine pelletizing of 600rpm, and vacuum-drying 10 hours at 100 DEG C, obtains wear resistant nylon 66 particle.
The nylon66 fiber used in above-mentioned all embodiments is common unmodified resin PA66, and fusing point is 255 ~ 265 DEG C; 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 application claims, all belongs to protection scope of the present invention.

Claims (7)

1. a preparation method for the wear resistant nylon 66 containing antioxidant, is characterized in that the method comprises the following steps:
Step (1). weigh following raw material: parts by weight are the nylon66 fiber of 100 parts, the molybdenumdisulphide of 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 being joined rotating speed is mix 3 ~ 10 minutes in the high-speed mixer of 300 ~ 800rpm, obtains compound;
Step (3). above-mentioned compound is joined extruding pelletization in twin screw extruder; at the dicing machine pelletizing that is 300 ~ 800rpm of temperature be 15 ~ 40 DEG C tank water-cooled, rotating speed is placed on 70 ~ 110 DEG C, vacuum-drying 5 ~ 10 hours, obtains wear resistant nylon 66 particle.
2. the preparation method of a kind of wear resistant nylon 66 containing antioxidant as claimed in claim 1, it is characterized in that described nylon66 fiber is common unmodified resin PA66, fusing point is 255 ~ 265 DEG C.
3. the preparation method of a kind of wear resistant nylon 66 containing antioxidant 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 66 containing antioxidant 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 66 containing antioxidant 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 66 containing antioxidant 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 66 containing antioxidant as claimed in claim 1, it is characterized in that the screw speed of described twin screw extruder is 80 ~ 250rpm, in the course of processing, processing temperature is feeding section 240 ~ 260 DEG C, fluxing zone 260 ~ 280 DEG C, homogenizing zone 270 ~ 300 DEG C, head temperature 240 ~ 260 DEG C.
CN201310411999.4A 2013-09-11 2013-09-11 A kind of preparation method of the wear resistant nylon 66 containing antioxidant Active CN103483812B (en)

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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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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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