Multibasic oxide filled and PEEK (polyether-ether-ketone)-based self-lubricating nanocomposite and preparation method thereof

A nanocomposite material and polyetheretherketone technology are applied in the field of multi-oxide filled polyetheretherketone-based self-lubricating nanocomposite materials and their preparation, and can solve problems such as the influence of tribological properties of polymer composite materials.

Active Publication Date: 2017-05-31
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the self-lubricating composite materials reported in the literature only contain a single type of nano-ceramic particles, and there is no research report on the influence of the coupling of different physical and chemical properties of nano-oxide particles on the tribological properties of polymer composites.

Method used

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  • Multibasic oxide filled and PEEK (polyether-ether-ketone)-based self-lubricating nanocomposite and preparation method thereof
  • Multibasic oxide filled and PEEK (polyether-ether-ketone)-based self-lubricating nanocomposite and preparation method thereof
  • Multibasic oxide filled and PEEK (polyether-ether-ketone)-based self-lubricating nanocomposite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The volume percentage of the components of a polyether ether ketone-based self-lubricating nanocomposite filled with multiple oxides is: nano-CuO particles: 0.3%, nano-SiO 2 Granules: 1%, PEEK powder: 88.7%, short carbon fibers: 10%. First, nano-CuO and nano-SiO 2 The granules are mechanically mixed, then PEEK powder and short carbon fibers are added for further mixing. The mechanically mixed uniform powder is placed in a twin-screw extruder to melt and knead and extrude. The melt-extruded pellets are injected into an injection molding machine. The short carbon fiber is dried and used after ultrasonic cleaning, and the cleaning solvent is absolute ethanol. The heating temperature of the first zone of the twin-screw extruder is 370~375°C, the heating temperature of the second zone is 380~385°C, the heating temperature of the third zone is 390~395°C, the heating temperature of the fourth zone is 400~405°C, and the screw speed is 400rpm; The mold temperature is 180°C, ...

Embodiment 2

[0023] A multi-component oxide filled polyetheretherketone-based self-lubricating nanocomposite has a volume percentage of components: nano-CuO particles: 3%, nano-TiO 2 Granules: 7%, PEEK pellets: 75%, short glass fibers: 15%. First, nano-CuO and nano-TiO 2 The granules were mechanically mixed, and then PEEK pellets and short glass fibers were added for further mixing. Put the mechanically mixed homogeneous material in a twin-screw extruder to melt, knead and extrude it. The melt-extruded pellets are injected into an injection molding machine. The short glass fiber is dried and used after ultrasonic cleaning, and the cleaning solvent is acetone. The heating temperature of the first zone of the twin-screw extruder is 370~375°C, the heating temperature of the second zone is 380~385°C, the heating temperature of the third zone is 390~395°C, the heating temperature of the fourth zone is 400~405°C, and the screw speed is 200rpm; The mold temperature is 190°C, the injection bar...

Embodiment 3

[0025] The volume percentage of the components of a polyether ether ketone-based self-lubricating nanocomposite filled with multiple oxides is: nano Bi 2 o 3 Particles: 4%, Nano SiO 2 Granules: 9%, PEEK powder: 67%, short carbon fibers: 20%. First, the Nano Bi 2 o 3 and nano-SiO 2 The granules are mechanically mixed, then PEEK powder and short carbon fibers are added for further mixing. The mechanically mixed uniform powder is placed in a twin-screw extruder to melt and knead and extrude. The melt-extruded pellets are injected into an injection molding machine. The short carbon fiber is dried and used after ultrasonic cleaning, and the cleaning solvent is acetone. The heating temperature of the first zone of the twin-screw extruder is 370~375°C, the heating temperature of the second zone is 380~385°C, the heating temperature of the third zone is 390~395°C, the heating temperature of the fourth zone is 400~405°C, and the screw speed is 300rpm; The mold temperature is 20...

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Abstract

The invention discloses a multibasic oxide filled and PEEK (polyether-ether-ketone)-based self-lubricating nanocomposite. The composite is prepared from components in percentage by volume as follows: 55%-94.4% of PEEK resin, 5%-30% of reinforced fiber, 0.5%-10% of high-melting-point nanoparticles and 0.1%-5% of low-melting-point nanoparticles, wherein the high-melting-point nanoparticles are nano SiO2 or nano TiO2; the low-melting-point nanoparticles are nano Bi2O3 or nano CuO. The invention further discloses a preparation method of the composite. The running-in stage of the PEEK-based composite friction process is remarkably shortened through simultaneous addition of two nanoparticles with different melting points, nanoparticles released on a friction interface can promote rapid formation of transfer films with lubricating characteristics on the dual surfaces, two types of nanofiller have a remarkable synergistic effect, and the friction performance of a PEEK material is improved.

Description

technical field [0001] The invention relates to a polyetheretherketone-based self-lubricating nano-composite material filled with multiple oxides and a preparation method thereof, belonging to the field of self-lubricating composite materials. Background technique [0002] Polyetheretherketone-based composite material is a thermoplastic engineering plastic with high strength, high modulus, heat resistance, high chemical stability and self-lubricating properties, and is widely used in sliding bearings operating under dry friction conditions. However, since pure polyether ether ketone resin materials usually exhibit high friction coefficient and wear rate, in practical applications, it needs to be reinforced and self-lubricated to improve its tribological properties. [0003] Adding reinforcing fillers, solid lubricants and inorganic nano-ceramic particles to the polyetheretherketone resin can not only improve the mechanical properties of the composite material, but also impro...

Claims

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Application Information

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IPC IPC(8): C08L61/16C08K7/06C08K3/22C08K3/36C08K7/14B29C45/78B29C45/77B29C47/92B29C48/92
CPCB29C45/77B29C45/78B29C48/92B29C2945/76498B29C2945/76531B29C2948/9259B29C2948/92704C08K3/22C08K3/36C08K7/06C08K7/14C08K2003/2241C08K2003/2248C08K2201/003C08K2201/004C08K2201/011C08L61/16
Inventor 张嘎郭丽和赵福燕王廷梅王齐华
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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