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Metal wire mesh reinforced heat-conducting plastic with high strength, high corrosion resistance and high heat conductivity

A heat-conducting plastic and wire mesh technology, applied in metal layered products, layered products, synthetic resin layered products, etc., to achieve the effect of high thermal conductivity and good mechanical properties

Inactive Publication Date: 2012-08-29
陈建伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has metal aluminum on the outer layer, which is not suitable for radiators or heat exchangers used under conditions such as strong acid corrosion and oxidation.

Method used

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  • Metal wire mesh reinforced heat-conducting plastic with high strength, high corrosion resistance and high heat conductivity
  • Metal wire mesh reinforced heat-conducting plastic with high strength, high corrosion resistance and high heat conductivity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] By weight, 95 parts of polyethylene, 5 parts of polyethylene grafted maleic anhydride, 1 part of ethylene-vinyl acetate copolymer, 200 parts of thermally conductive filler flake graphite, 5 parts of titanate coupling agent, and 10 parts of polyethylene wax The parts are mixed with a high-speed mixer, and then extruded and granulated with a twin-screw extruder. First use the method of co-extrusion to prepare a sheet or plate whose lower layer is a thermally conductive plastic layer, the core layer is a reinforced layer formed by conductive plastic and a layer of stainless steel mesh, and the upper layer is a thermally conductive plastic layer. Cool to set. The thickness of the lower layer of thermally conductive plastic is 0.1mm, and the thickness of the stainless steel mesh reinforcement layer is 0.1mm; the thickness of the upper layer of thermally conductive plastic is 0.6mm. The mesh number of this stainless steel is 50 orders, and the diameter of steel wire is 0.1 m...

Embodiment 2

[0025] By weight, 100 parts of polyethylene, 10 parts of polyethylene grafted maleic anhydride, 10 parts of ethylene-vinyl acetate copolymer, 100 parts of thermal conductive filler flake graphite, 5 parts of aluminate coupling agent, 10 parts of polyethylene wax The parts are mixed with a high-speed mixer, and then extruded and granulated with a twin-screw extruder. First use the method of co-extrusion to prepare a sheet or plate with the lower layer as the thermally conductive plastic layer, the core layer as the reinforcement layer formed by conductive plastic and two layers of wire mesh, and the upper layer as the thermally conductive plastic layer, and then cut and heat press in the mold and cooling molding. The thickness of the lower layer of thermally conductive plastic is 0.2 mm, and the thickness of the wire mesh reinforcement layer is 0.2 mm; the thickness of the upper layer of thermally conductive plastic is 0.5 mm. The mesh number of the stainless steel is 800 mesh...

Embodiment 3

[0027] By weight, 100 parts of homopolypropylene (extrusion grade), 5 parts of ethylene-octene copolymer, 30 parts of maleic anhydride grafted polypropylene, 50 parts of thermally conductive filler expanded graphite, and titanate coupling agent 2 The parts are mixed with a high-speed mixer, and then extruded and granulated with a twin-screw extruder. First use the method of co-extrusion to prepare a sheet or plate whose lower layer is a thermally conductive plastic layer, the core layer is a reinforced layer formed by conductive plastic and four-layer copper mesh, and the upper layer is a thermally conductive plastic layer. Cool and shape. The thickness of the lower layer of thermally conductive plastic is 0.1 mm, and the copper mesh reinforcement layer is about 0.5 mm; the thickness of the upper layer of thermally conductive plastic is 0.1 mm. The mesh number of this copper is 800 meshes, and the diameter of copper wire is 0.1 millimeter. The copper mesh reinforced thermall...

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Abstract

The invention discloses a metal wire mesh reinforced heat-conducting plastic with high strength, high corrosion resistance and high heat conductivity. The metal wire mesh reinforced heat-conducting plastic is obtained by compounding a heat-conducting plastic lower layer, a metal wire mesh reinforced layer and a heat-conducting plastic upper layer in sequence from bottom to top; the heat-conducting plastic lower layer is 0.1-5 mm thick; the metal wire mesh reinforced layer is 0.1-5 mm thick; and the heat-conducting plastic upper layer is 0.1-5 mm thick; and the metal wire mesh reinforced heat-conducting plastic with high strength, high corrosion resistance and high heat conductivity, disclosed by the invention, has the advantages of good mechanical property, high corrosion resistance, high heat conduction coefficient and easiness for secondary machining. The bending strength can be more than 70 MPa and the heat conduction coefficient is more than 1.5 W / m.oC; the bending strength of a pure heat-conducting plastic is only 25-50 MPa and the heat conduction coefficient is about 0.4-1.0 W / m.oC; and the metal wire mesh reinforced heat-conducting plastic disclosed by the invention is very suitable for preparing heat radiators and heat exchangers.

Description

Technical field [0001] The invention is a composite material field, which involves a high -strength metal wire mesh enhanced thermal conductivity. Background technique [0002] Metal materials have excellent mechanical properties and thermal conductivity, and have been widely used in the fields of radiator, heat exchangers and other fields.However, metal materials are easy to corrode, complicated connection processes, and prone to leakage. Therefore, the application of metal materials in the fields of radiator and heat exchanges is limited. [0003] Thermal conductivity is made of polymers, heat -conducting fillers, and various additives.It not only has a high heating coefficient, but also meets or basically meets product use requirements such as heat sinks, heat exchangers, but also has low cost and convenient processing. It can also be connected by melting welding, which is easy and easy to promote. [0004] However, the current thermal conductivity of thermal conductivity is l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/02B32B15/08B32B27/06B32B27/18B32B27/32
Inventor 陈建伟杜淼
Owner 陈建伟
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