Wave-absorbing LED-lamp nylon heat-conduction composite and preparing method thereof

A heat-conducting composite material and LED lamp technology, applied in the field of nylon heat-conducting material and its preparation, can solve the problems of poor processing performance, material tensile performance, poor bending performance and high hardness, and achieve the advantages of reducing electromagnetic radiation and increasing heat dissipation performance. Effect

Inactive Publication Date: 2016-10-26
BENGBU GAOHUA ELECTRONICS
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the most typical application of heat-conducting plastics is in the field of lighting, mainly used to make lamp cups of LED energy-saving lamps that require good heat dissipation. Although the heat consumed by LED energy-saving lamps is much smaller than that of ordinary light sources, because LED energy-saving lamps Compact and powerful, how to effectively dissipate heat remains an important issue
[0004] Chinese patent application CN102408710A discloses

Method used

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Examples

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Comparison scheme
Effect test

Example Embodiment

[0019] The nylon thermally conductive composite material for the wave-absorbing LED lamp of this embodiment is made of the following raw materials by weight: 6200 parts of nylon, 15 parts of manganese-zinc ferrite, 15 parts of silicon carbide, glass Fiber 8 parts, carbon fiber 15 parts, acetone 60 parts, 60% nitric acid 100 parts, silane coupling agent A-171 4 parts, 3% acetic acid aqueous solution 80 parts, 1,6-hexamethylene diisocyanate 15 parts, (meth)acrylic acid 20 parts of hydroxyethyl, 0.4 parts of catalyst, 2 parts of polymerization inhibitor, 170 parts of tetrahydrofuran, 100 parts of toluene, an appropriate amount of deionized water.

[0020] The nylon thermally conductive composite material for the wave-absorbing LED lamp of this embodiment, the thermally conductive composite material is prepared by the following steps:

[0021] (1) Surface modification of glass fiber and carbon fiber

[0022] Soak glass fiber and carbon fiber in acetone solution for 12h, filter, wash wit...

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Abstract

The invention discloses a wave-absorbing LED-lamp nylon heat-conduction composite. The wave-absorbing LED-lamp nylon heat-conduction composite is prepared from, by weight, 200 parts of nylon6, 15-20 parts of manganese zinc ferrite, 15-20 parts of silicon carbide, 8-10 parts of glass fibers, 15-20 parts of carbon fibers, 50-60 parts of acetone, 80-100 parts of nitric acid of 60%-70%, 3-4 parts of silane coupling agent A-171, 70-80 parts of acetic-acid aqueous solutions of 1%-3%, 15-20 parts of 1,6-hexamethylene diisocyanate, 20-25 parts of (methyl) hydroxyethyl acrylate, 0.4-1 part of catalyst, 0.4-2 parts of polymerization inhibitor, 150-170 parts of tetrahydrofuran, 80-100 parts of toluene and a proper amount of deionized water. According to the wave-absorbing LED-lamp nylon heat-conduction composite, electromagnetic waves are absorbed through the manganese zinc ferrite and the silicon carbide, and electromagnetic radiation is reduced; the glass fibers and the carbon fibers are subjected to surface modification, the wave-absorbing material is coated with a high polymer, and the compatibility between the glass fibers, the carbon fibers and the like and the nylon6 is improved.

Description

technical field [0001] The invention relates to a nylon heat-conducting material and a preparation method thereof, in particular to a wave-absorbing nylon heat-conducting composite material for LED lamps. Background technique [0002] Generally speaking, the thermal conductivity of pure plastic materials is far lower than that of metal and ceramic materials, but its insulation performance is good. Thermally conductive plastics not only have the heat transfer properties of metals and ceramics, but also retain the advantages of ordinary plastics in terms of design, performance and cost. Low molding shrinkage, low working temperature and improved design freedom are widely used in various industries. [0003] At present, the most typical application of heat-conducting plastics is in the field of lighting, mainly used to make lamp cups of LED energy-saving lamps that require good heat dissipation. Although the heat consumed by LED energy-saving lamps is much smaller than that of...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08K13/06C08K9/10C08K9/06C08K7/14C08K7/06C08K3/22C08K3/34
CPCC08K3/22C08K3/34C08K7/06C08K7/14C08K9/06C08K9/10C08K13/06C08L2201/08C08L2203/20C08L77/02
Inventor 肖宪书
Owner BENGBU GAOHUA ELECTRONICS
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