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Efficient conduction material

A conductive material and high-efficiency technology, applied in the field of high-efficiency conductive materials, can solve the problems of increasing process complexity and increasing manufacturing costs, and achieve the effect of increasing production costs and simple process

Inactive Publication Date: 2012-07-18
LUOYANG INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When plastic must be selected due to technological reasons, special treatment is required for this material, such as metal spraying treatment on the plastic surface, which not only greatly increases the manufacturing cost, but also increases the complexity of the process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Use 1601 epoxy resin as the matrix material, and polyamide resin 650 as the curing agent. Mix epoxy resin and curing agent at a ratio of 1:1 (weight percentage), then pour it into a mold coated with simethicone oil, and lay a layer of density 150 g / m on the mixture 2 The aluminum fiber non-woven felt layer, continue to pour the mixture of the remaining epoxy resin and curing agent into the mold, then close the mold, keep it under a certain pressure for 4 hours to cure the material, and finally demould. The prepared material has good electromagnetic shielding performance, at 300MHz-3198 MHz, the electromagnetic shielding performance is 70-90dB, and the electromagnetic shielding effect reaches 99.99%. Test results such as figure 1 .

Embodiment 2

[0035] The selected area density is 100 g / m 2 The aluminum fiber non-woven surface thin felt layer is used as the conductive layer. In the process of preparing glass cloth reinforced epoxy resin by conventional hand lay-up method, when pasting the inner layer of the product (not too close to the outer layer, so as not to prevent the aluminum fiber non-woven felt exposed), replace a layer of glass cloth with an aluminum fiber non-woven surface felt layer. After the pasting is completed, solidify and demould. The prepared material has good electromagnetic shielding performance, 400MHz-3198 MHz, the electromagnetic shielding performance is 70-90dB, and the electromagnetic shielding effect reaches 99.99%. Test results such as figure 2 .

Embodiment 3

[0037] In the process of preparing plastics by conventional resin die-casting (ie, injection molding), a glass fiber reinforced layer and an aluminum fiber non-woven felt layer of a specific shape are laid in the mold in advance, and the hot melted plastic is injected into the mold cavity by high pressure. After cooling and solidification, the molded product is obtained by demoulding.

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Abstract

An efficient conduction material structurally at least comprises a layer of metal fiber non-woven felt layer capable of conducting electricity, heat and electromagnetism with high speed, wherein the preference is an aluminum fiber non-woven felt. A base is various kinds plastics, and the preference is glass fiber reinforce plastics. The metal fiber non-woven felt can be compatible with common resin, cannot be influenced by electromagnetic signals easily, is added in the same process of plastics manufacturing with glass fibers, does not need to increase a novel process, is simple in process, dose not increase production cost. The efficient conduction material can be used as antennas of satellites and ground-based radars, directional antennas of broadcast communication, cables, electromagnetic interference shielding elements of aviation and automobiles, wave-absorbing materials of specific radars and the like.

Description

technical field [0001] The invention relates to a high-efficiency conductive material. Background technique [0002] Glass fiber reinforced plastics are widely used in automobiles, railway transportation, Aerospace, military industry, shipbuilding, metallurgy, petrochemical, construction, machinery and other industrial fields, and, with the development of modern polymer theory and molding technology, its dosage and application range are expanding day by day. [0003] In the application process of glass fiber reinforced plastic materials, sometimes its good heat insulation, electrical insulation and good electromagnetic wave permeability are obstacles to its application, for example, when used as various conductive devices, used as When devices with good thermal conductivity are required and used as various electromagnetic interference shielding components, specific radar absorbing materials, etc., it is generally necessary to select another material. When plastic must be s...

Claims

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Application Information

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IPC IPC(8): C08L101/00C08K7/00C08K7/06C08K3/08C08K7/14C08J5/04
Inventor 张俊红曹朝晖曹钦存赵跃智
Owner LUOYANG INST OF SCI & TECH
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