Nylon 6 composition with excellent wear resistance and preparation method of nylon 6 composition
A technology of wear resistance and composition, which is applied in the field of nylon 6 composition and its preparation, can solve the problems of lowering the mechanical properties of matrix resin and high addition of wear-resistant agent, and achieve excellent wear-resistant effect, good wear-resistant effect, and stable mixing moderate speed effect
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Embodiment 1
[0041] The anti-wear agent used is a compound of wollastonite and alumina in a weight ratio of 1:4. The aspect ratio of wollastonite is 20:
[0042] 1. The average particle diameter is 5 μm; the average particle diameter of alumina is 3 μm.
[0043] Add 6100 parts of nylon, 2.5 parts of anti-wear agent, 1 part of silane coupling agent, and 0.6 part of antioxidant into the mixer at room temperature and low speed and stir for 38 seconds. After mixing evenly, add it to the twin-screw extruder; After being granulated, a nylon 6 composition with excellent wear resistance is obtained.
[0044] The low-speed stirring speed of the mixer is 100 rpm; the temperature of the first zone of the twin-screw extruder is 180°C, the temperature of the second zone is 220°C, the temperature of the third zone is 230°C, the temperature of the fourth zone is 240°C, and the temperature of the fifth zone is 250°C, the temperature in the sixth zone is 260°C; the speed of the twin-screw main engine is ...
Embodiment 2
[0077] The anti-wear agent used is a compound of wollastonite and alumina in a weight ratio of 1:4. The aspect ratio of wollastonite is 20:
[0078] 1. The average particle diameter is 5 μm; the average particle diameter of alumina is 3 μm.
[0079] Add 100 parts of nylon 6, 5 parts of anti-wear agent, 1.5 parts of silane coupling agent, and 1 part of antioxidant into the mixer at room temperature and low speed and stir for 40 seconds. After mixing evenly, add it to the twin-screw extruder; Granulating after extrusion to prepare a nylon 6 composition with excellent wear resistance.
[0080] The low-speed stirring speed of the mixer is 120 rpm; the temperature of the first zone of the twin-screw extruder is 200°C, the temperature of the second zone is 230°C, the temperature of the third zone is 240°C, the temperature of the fourth zone is 250°C, and the temperature of the fifth zone is 260°C, the temperature in the sixth zone is 260°C; the speed of the twin-screw main engine ...
Embodiment 3
[0082] The aspect ratio of wollastonite used is 20:1, the average particle diameter is 5 μm; the average particle diameter of alumina is 3 μm.
[0083] Anti-wear agent treatment method: compound wollastonite and alumina at a weight ratio of 1:4, then put it into stearic acid ethanol solution, and obtain it after ultrasonic reflux at 40°C for 1.5 hours and then dry; the weight of stearic acid and ethanol The ratio is 1:9.
[0084] Add 100 parts of nylon 6, 5 parts of anti-wear agent, 1.5 parts of silane coupling agent, and 1 part of antioxidant into the mixer at room temperature and low speed and stir for 40 seconds. After mixing evenly, add it to the twin-screw extruder; Granulating after extrusion to prepare a nylon 6 composition with excellent wear resistance.
[0085] The low-speed stirring speed of the mixer is 120 rpm; the temperature of the first zone of the twin-screw extruder is 200°C, the temperature of the second zone is 230°C, the temperature of the third zone is 2...
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