Wear-resistant filling material, wear-resistant composite material prepared from same and preparation method for composite material

A wear-resistant filler and composite material technology, which is applied to the wear-resistant filler and the wear-resistant composite material prepared therefrom and the field of preparation, can solve the problem of insufficient hardness of the wear-resistant filler, and achieve low friction coefficient, high hardness and wear resistance. Good results

Active Publication Date: 2014-05-14
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first object of the present invention is to provide a wear-resistant filler for plastic resins, to solve the defect that the hardness of the wear-resistant filler used in the plastic matrix in the prior art is not enough
[0007] The second purpose of the present invention is to provide a wear-resistant composite material to solve the defect that the hardness of the wear-resistant filler used in the plastic matrix in the prior art is not enough
[0008] The third object of the present invention is to provide a preparation method of wear-resistant composite material to solve the defect that the hardness of the wear-resistant filler used in the plastic matrix in the prior art is not enough

Method used

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  • Wear-resistant filling material, wear-resistant composite material prepared from same and preparation method for composite material
  • Wear-resistant filling material, wear-resistant composite material prepared from same and preparation method for composite material

Examples

Experimental program
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Effect test

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

[0073] Polyethylene terephthalate (PET) wear-resistant composites were prepared as follows:

[0074] (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;

[0075] (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

[0106] Polyetheretherketone (PEEK) wear-resistant composites were prepared as follows:

[0107] (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;

[0108] (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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Abstract

The invention discloses a wear-resistant filling material, a wear-resistant composite material prepared from the same and a preparation method for the composite material. The wear-resistant filling material is prepared from the following components by weight: 0.15 to 7.5 parts of cubic boron nitride micro powder, 0.15 to 7.5 parts of molybdenum disilicide micro powder and 0.2 to 10 parts of polytetrafluoroethylene micro powder. The wear-resistant composite material is prepared from the following components by weight: 100 parts of a plastic resin, 0.5 to 25 parts of the wear-resistant filling material, 0 to 2 parts of a coupling agent and 0 to 2 parts of a processing aid. The preparation method for the wear-resistant composite material comprises the following steps: mixing the above-mentioned components at a high speed and carrying out extrusion with an extruder. According to the invention, cubic boron nitride micro powder, molybdenum disilicide micro powder and polytetrafluoroethylene micro powder are compounded to prepare the wear-resistant filling material which is applied to a plastic matrix, so the wear-resistant composite material with good wear resistance, a low friction coefficient and low dry grinding abrasion is prepared; and the application scopes of cubic boron nitride and molybdenum disilicide are broadened at the same time.

Description

technical field [0001] The invention relates to the field of polymer material modification, in particular to a wear-resistant filler, a wear-resistant composite material prepared therefrom and a preparation method. Background technique [0002] In 1957, R.H. Wintorf of the United States (an employee of General Electric Company of the United States) first developed square boron nitride. Cubic boron nitride, the molecular formula is BN, cubic boron nitride can be abbreviated as CBN, its crystal structure is similar to diamond, and its hardness is slightly lower than diamond (cubic boron nitride Vickers hardness HV72000~98000 MPa, diamond Vickers hardness HV100000 MPa), so it and diamond are collectively referred to as superhard materials, often used as abrasives and tool materials. For example, Chinese patent application CN102416602A discloses a boron nitride grinding wheel; Chinese patent application CN101712550A discloses a boron nitride superhard tool, which is mainly used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/38C08K3/34C08L23/06C08L23/12C08L77/00C08L77/02C08L77/06C08L67/00C08L67/02C08L69/00C08L81/02C08L61/16C08L79/08C08L81/06C08L27/18C08K13/02
Inventor 杨桂生俞飞孙利明
Owner HEFEI GENIUS NEW MATERIALS
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