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Abrasion-resistant composite material and preparation method thereof

A composite material, plastic resin technology, applied in the field of polymer material modification, to achieve the effect of good effect, high hardness and improved wear resistance

Active Publication Date: 2013-04-17
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has not been reported so far as a wear-resistant filler for plastics

Method used

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  • Abrasion-resistant composite material and preparation method thereof
  • Abrasion-resistant composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 0.05 parts of KH550 and 0.05 parts of NDZ-102 to 100 parts by weight of PP and mix them at room temperature with a high-speed mixer, and then mix 2.5 parts of B with a particle size of 1500 mesh 4 C. Add 2.5 parts of PTFE with a particle size of 1500 meshes for high-speed mixing at room temperature, and finally add 0.1 parts of silicone powder for high-speed mixing at room temperature. The mixing speed is 100 rpm throughout the mixing process, and the mixing time is 2 minutes. The blend is extruded and granulated by a twin-screw extruder. The temperature of each zone of the extruder from the feeding section to the head temperature is 140°C, 160°C, 160°C, 170°C, 170°C, 180°C, 180°C ℃, 190℃, 190℃, 195℃, the length-to-diameter ratio of the extrusion screw is 30, and the rotation speed of the extrusion screw is 150 rpm; the single-screw injection molding temperature is 180℃, 200℃, 200℃ from the feed to the machine head , 200°C, 210°C, the aspect ratio of the screw of th...

Embodiment 2

[0037] Add 2 parts of DL-411 to 100 parts by weight of PP and mix it with a high-speed mixer at room temperature, and then mix 20 parts of B with a particle size of 2500 mesh 4 C. Add 10 parts of PTFE with a particle size of 5000 meshes for high-speed mixing at room temperature, and finally add 1 part of silicone powder and 1 part of EBS for high-speed mixing at room temperature. The mixing speed during the entire mixing process is 300 rpm. The mixing time is The mixed blend was extruded and granulated through a twin-screw extruder in 8 minutes. The temperature of each zone of the extruder from the feeding section to the head temperature was 140°C, 160°C, 170°C, 180°C, 190°C, 200°C, 200°C, 210°C, 210°C, 215°C, the length-to-diameter ratio of the extrusion screw is 40, and the rotation speed of the extrusion screw is 350 rpm; the single-screw injection molding temperature is 180°C, 200 ℃, 220℃, 220℃, 230℃, the aspect ratio of the screw of the injection molding machine is 40, th...

Embodiment 3

[0040] Add 1 part of KH550 to 100 parts by weight of PET and mix it with a high-speed mixer at room temperature, and then mix 15 parts of B with a particle size of 5000 mesh 4C. Add 5 parts of PTFE with a particle size of 5000 meshes for high-speed mixing at room temperature, and finally add 0.5 parts of silicone powder and 1 part of EBS for high-speed mixing at room temperature. The mixing speed during the entire mixing process is 250 rpm. The mixing time is After 4 minutes, the mixed blend was extruded and granulated through a twin-screw extruder. The temperature of each zone of the extruder from the feeding section to the head temperature was 240°C, 260°C, 270°C, 280°C, 290°C, 290°C, 290°C, 290°C, 290°C, 295°C, the length-to-diameter ratio of the extrusion screw is 35, and the rotation speed of the extrusion screw is 300 rpm; ℃, 290℃, 300℃, 300℃, the aspect ratio of the screw of the injection molding machine is 35, the screw speed is 300 rpm, the injection pressure is 60MPa...

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Abstract

The invention discloses an abrasion-resistant composite material and a preparation method thereof. The composite material disclosed by the invention consists of the following components in parts by weight: 100 parts of plastic resin, 5-30 parts of filler, 0.1-2 parts of coupling agent and 0.1-2 parts of processing aid. The composite material disclosed by the invention has excellent abrasion-resistant property, so that the application field of B4C (boron carbide) is expanded; the composite material with excellent abrasion-resistant property can be prepared by compounding the abrasion-resistant composite material with polytetrafluoroethylene powder; the abrasion-resistant property thereof is better than the effect of independent utilization of B4C or polytetrafluoroethylene; the application field is board; and the composite material is applied to the fields of automobiles, electron and electric, aerospace, weaponry and the like.

Description

technical field [0001] The invention relates to the field of polymer material modification, in particular to a wear-resistant composite material and a preparation method. Background technique [0002] Boron carbide, molecular formula B 4 C, commonly known as artificial diamond, is a boride with high hardness. Its hardness is lower than industrial diamond, but higher than silicon carbide. It is the fifth after boron nitride, diamond, fullerene compound and diamond overall fiber tube. The hardest known substance. It does not react with acid and alkali solutions, is easy to manufacture and relatively cheap. It is widely used in grinding, grinding and drilling of hard materials such as ceramics. It has not been reported so far as a wear-resistant filler for plastics. [0003] Contents of the invention [0004] The object of the present invention is to provide a wear-resistant composite material, which expands the B 4 The field of application of C. [0005] Another objec...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/12C08L77/02C08L77/06C08L67/02C08L69/00C08L81/02C08L61/16C08L79/08C08L27/18C08K3/38B29B7/28B29C47/92B29C48/92
CPCB29C48/911B29C48/0022B29C48/04
Inventor 杨桂生俞飞
Owner HEFEI GENIUS NEW MATERIALS
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