A wear-resistant filler, wear-resistant composite material prepared therefrom, and preparation method thereof
A technology for wear-resistant fillers and composite materials, which is applied in the field of wear-resistant fillers and wear-resistant composite materials prepared therefrom, and can solve problems such as insufficient hardness of wear-resistant fillers, achieve low friction coefficient, good wear resistance, and improve Effect of Coefficient of Friction
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Embodiment 1
[0041] The preparation of polyethylene (PE) wear-resistant composites is as follows:
[0042] (1) Add 0.15 parts of coupling agent KH550 and 0.15 parts of coupling agent NDZ-102 to 100 parts by weight of plastic resin PE, mix at room temperature with a high-speed mixer, and then mix 0.5 parts of cubic boron nitride micropowder (particle size 0.5 μm ), 0.5 parts of molybdenum disilicide micropowder (0.5 μm in particle size), and 1 part of polytetrafluoroethylene micropowder (0.5 μm in particle size) were added for high-speed mixing at room temperature, and then 0.2 parts of silicone powder were added for high-speed mixing at room temperature, During the whole mixing process, the mixing speed was 120 r / min, and the mixing time was 5 minutes;
[0043] (2) Extrude the blend mixed in step (1) through a twin-screw extruder to granulate. The temperature of each zone of the twin-screw extruder is 100°C, 120°C, and 120°C from the feeding section to the die head. ℃, 140℃, 140℃, 160℃, 1...
Embodiment 2
[0069] Polyethylene terephthalate (PET) wear-resistant composites were prepared as follows:
[0070] (1) Add 0.15 parts of coupling agent KH550 and 0.15 parts of coupling agent NDZ-102 to 100 parts by weight of PET, mix at room temperature with a high-speed mixer, and then mix 1 part of cubic boron nitride micropowder (particle size is 0.1 μm), Add 1 part of molybdenum disilicide micropowder (0.1 μm in particle size) and 1 part of polytetrafluoroethylene micropowder (0.1 μm in particle size) into it for high-speed mixing at room temperature, then add 0.2 part of zinc stearate for high-speed mixing at room temperature, the whole During the mixing process, the mixing speed was 120 r / min, and the mixing time was 5 minutes;
[0071] (2) Extrude and granulate the blend mixed in step (1) through a twin-screw extruder. The temperature of each zone of the twin-screw extruder is 220°C, 240°C, and 260°C from the feeding section to the head temperature. ℃, 260℃, 280℃, 280℃, 280℃, 280℃, ...
Embodiment 3
[0097] Polyetheretherketone (PEEK) wear-resistant composites were prepared as follows:
[0098] (1) Add 0.15 parts of coupling agent KH550 and 0.15 parts of coupling agent NDZ-102 to 100 parts by weight of PEEK, mix at room temperature with a high-speed mixer, and then mix 1.5 parts of cubic boron nitride micropowder (with a particle size of 5 μm), 1.5 One part of molybdenum disilicide micropowder (with a particle size of 5 μm) and 2 parts of polytetrafluoroethylene micropowder (with a particle size of 5 μm) were added for high-speed mixing at room temperature, and then 0.2 parts of simethicone oil were added for high-speed mixing at room temperature. During the entire mixing process The mixing speed is 120 r / min, and the mixing time is 5min;
[0099] (2) Extrude the blend mixed in step (1) through a twin-screw extruder to granulate. The temperature of each zone of the twin-screw extruder is 280°C, 320°C, and 340°C from the feeding section to the head temperature. ℃, 340℃, 34...
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