Impact-resistant thermally-conductive polymer material and preparation method thereof

A polymer material and impact-resistant technology, applied in the field of impact-resistant thermally conductive polymer materials and their preparation, can solve problems such as poor impact resistance and poor thermal conductivity, and achieve high impact strength, improved impact resistance, and thermal conductivity. high coefficient effect

Inactive Publication Date: 2015-11-18
苏州凯欧曼新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems of poor impact resistance and poor thermal conductivity of conventional heat-conducting polymer materials, and provide a new impact-resistant and heat-conducting polymer material with improved technology and components and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Turn on the pulverizer, and pulverize tungsten carbide and chromium carbide respectively with the pulverizer until the mesh numbers of tungsten carbide and chromium carbide are both 400 mesh;

[0040] (2) Set the speed of the high-speed mixer to 300rpm and the temperature to 115°C, and add 8 parts of polycarbonate, 4 parts of styrene-butadiene rubber, 7 parts of polyethylene adipate, polytetrafluoroethylene 3 parts of vinyl fluoride, 2 parts of polyvinyl acetate, 8 parts of polybutadiene epoxy resin, 2 parts of trioctyl phosphate, 4 parts of tungsten carbide, 5 parts of chromium carbide, 8 parts of magnesium stearate, stir until the above The components are mixed evenly;

[0041] (3) The mixed components of step (2) are melted and mechanically extruded. The extrusion method is twin-screw extrusion. The screw length-to-diameter ratio of the twin-screw extruder is 17:1. The temperature is 190°C, the temperature in the second zone is 210°C, and the temperature in the ...

Embodiment 2

[0044] (1) Turn on the pulverizer, and pulverize tungsten carbide and chromium carbide respectively with the pulverizer until the mesh numbers of tungsten carbide and chromium carbide are both 100 mesh;

[0045] (2) Set the speed of the high-speed mixer to 150rpm and the temperature to 95°C, and add 22 parts of polycarbonate, 8 parts of styrene-butadiene rubber, 3 parts of polyethylene adipate, polytetrafluoroethylene 6 parts of vinyl fluoride, 7 parts of polyvinyl acetate, 4 parts of polybutadiene epoxy resin, 5 parts of trioctyl phosphate, 1 part of tungsten carbide, 2 parts of chromium carbide, 3 parts of magnesium stearate, stir until the above The components are mixed evenly;

[0046] (3) The mixed components of step (2) are melted and mechanically extruded. The extrusion method is twin-screw extrusion. The length-to-diameter ratio of the twin-screw extruder is 14:1. The temperature is 170°C, the temperature in the second zone is 200°C, and the temperature in the third z...

Embodiment 3

[0049] (1) Turn on the pulverizer, and pulverize tungsten carbide and chromium carbide respectively with the pulverizer until the mesh numbers of tungsten carbide and chromium carbide are both 400 mesh;

[0050] (2) Set the speed of the high-speed mixer to 300rpm and the temperature to 115°C, and add 18 parts of polycarbonate, 5 parts of styrene-butadiene rubber, 6 parts of polyethylene adipate, polytetrafluoroethylene 4 parts of vinyl fluoride, 6 parts of polyvinyl acetate, 5 parts of polybutadiene epoxy resin, 3 parts of trioctyl phosphate, 3 parts of tungsten carbide, 4 parts of chromium carbide, 4 parts of magnesium stearate, stir until the above The components are mixed evenly;

[0051] (3) The mixed components of step (2) are melted and mechanically extruded. The extrusion method is twin-screw extrusion. The screw length-to-diameter ratio of the twin-screw extruder is 17:1. The temperature is 190°C, the temperature in the second zone is 210°C, and the temperature in the...

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Abstract

The invention discloses an impact-resistant thermally-conductive polymer material and a preparation method thereof. The polymer material comprises the following components in parts by weight: 8-22 parts of polycarbonate, 4-8 parts of styrene butadiene rubber, 3-7 parts of polyethylene glycol adipate, 3-6 parts of polytetrafluoroethylene, 2-7 parts of polyvinyl acetate, 4-8 parts of polybutadiene epoxy resin, 2-5 parts of trioctyl phosphate, 1-4 parts of tungsten carbide, 2-5 parts of chromium carbide and 3-8 parts of magnesium stearate. The preparation method comprises the following steps: (1) pulverizing tungsten carbide and chromium carbide; (2) sequentially adding the components into a high speed mixer, and mixing uniformly; (3) performing melting on the mixed components obtained in the step (2), performing mechanical extrusion on the melted mixed components in a double-screw extrusion manner, pelleting, and cooling to obtain the product. The prepared polymer material is excellent in impact strength and thermal conductivity.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to an impact-resistant and heat-conducting polymer material and a preparation method thereof. Background technique [0002] Traditional heat-conducting substances are mostly metals such as Ag, Cu, Al and metal oxides such as Al2O3, MgO, BeO and other non-metallic materials such as graphite, carbon black, Si3N4, AlN. With the development of industrial production and science and technology, people put forward new requirements for thermally conductive materials, hoping that the materials have excellent comprehensive properties. For example, heat exchangers used in chemical production and wastewater treatment require the materials used not only to have thermal conductivity, but also to be resistant to chemical corrosion and high temperature. In the electrical and electronic field, due to the rapid development of integration technology and assembly technology, the volume of electronic com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L9/06C08L67/02C08L27/18C08L31/04C08L63/08C08K13/02C08K5/521C08K3/14C08K5/098B29C47/92B29C48/92
Inventor 费根华
Owner 苏州凯欧曼新材料科技有限公司
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