Heat conduction material co-extruded with optical diffusion material, and preparation method thereof

A heat-conducting material and co-extrusion technology, which is applied in the field of polycarbonate resin composite materials, can solve the problems of insufficient strength and deformation of all-plastic LED fluorescent tubes, and achieve the effects of light weight, pollution reduction and deformation resolution

Active Publication Date: 2013-04-03
DONGGUAN XINLONG OPTOELECTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the technology is in its infancy, all-plastic LED fluorescent tubes are deformed due to insufficient strength during use, which affects its popularization and application.

Method used

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  • Heat conduction material co-extruded with optical diffusion material, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In terms of parts by mass, 3 parts of aluminum nitride and 28 parts of aluminum oxide are first treated with 0.2 parts of silane coupling agent, and then the treated thermal conductive filler and 65 parts of PC, 3 parts of methyl methacrylate-butane Acrylic-styrene copolymer, 0.5 part of antioxidant 1076 and 0.3 part of pentaerythritol stearate are mixed homogeneously in high-speed mixer, join the feeding hopper of twin-screw extruder, through melt extruding, granulate, at 250 ℃ or so extrusion granulation and injection molding into samples.

Embodiment 2

[0027] In terms of parts by mass, 30 parts of magnesium oxide are first treated with 0.5 parts of silane coupling agent, and then the treated thermally conductive filler and 63.6 parts of PC, 5 parts of methyl methacrylate-butadiene-styrene copolymer , 0.3 parts of antioxidant 1076 and 0.6 parts of pentaerythritol stearate are mixed evenly in a high-speed mixer, added to the hopper of a twin-screw extruder, melted and extruded, granulated, and extruded at about 250 ° C for granulation And injection molded into samples.

Embodiment 3

[0029] In terms of parts by mass, 5 parts of boron nitride and 35 parts of aluminum oxide are first treated with 0.6 parts of titanate coupling agent, and then the treated thermal conductive filler and 45 parts of PC, 5 parts of styrene-maleic anhydride Copolymer, 8 parts of tetraacicular zinc oxide whiskers, 0.2 parts of antioxidant 168 and 1.2 parts of silicone lubricating and dispersing agent were mixed uniformly in a high-speed mixer, added to the hopper of a twin-screw extruder, and melted and extruded , pelletized, extruded pelletized at around 250°C and injection molded into samples.

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Abstract

The invention relates to a heat conduction material co-extruded with an optical diffusion material, and a preparation method thereof, and relates to the field of polycarbonate composite materials. The heat conduction material is prepared by a polycarbonate (PC) resin, a compatilizer, a high heat conduction filling material, an oxide heat conduction filling material, a reinforcing agent, a coupling agent, an anti-oxidant and a processing auxiliary agent. The mass percentage of each component is as follows: 45-65 parts of the PC resin, 3-5 parts of the compatilizer, 0-5 parts of the high heat conduction filling material, 25-35 parts of the oxide heat conduction filling material, 0-8 parts of the reinforcing agent, 0.2-1.0 parts of the coupling agent, 0.2-0.5 part of the anti-oxidant and 0.3-1.2 parts of the processing auxiliary agent. The heat conduction material prepared by the method has excellent heat conduction performance and mechanical performance, can be co-extruded with an optical diffusion PC and processed into an LED fluorescent tube.

Description

technical field [0001] The invention relates to the field of polycarbonate resin composite materials, in particular to a heat-conducting material co-extruded with a light-diffusing material and a preparation method thereof. Background technique [0002] As a new generation of green, environmentally friendly and energy-saving lighting sources, LED fluorescent lamps have been widely used in many fields such as home lighting, shop lighting, hotel lighting, office lighting, exhibition hall lighting, etc., and have become the fastest-growing market segment in the LED industry. much attention. Judging from the development trend of the LED industry in recent years, with the increasing promotion of the LED industry and the continuous maturity of LED technology, LED fluorescent lamps will also maintain a rapid development trend. The existing LED fluorescent lamps are basically assembled together with radiators and light diffusion lampshades. The radiators are generally made of alum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K13/06C08K9/06C08K9/04C08K3/28C08K3/38C08K3/34C08K3/22C08K7/14C08K7/08B29C47/92B29B9/06B29C48/92
CPCC08L69/00C08K3/22C08K5/005C08L23/0853C08L25/08C08L51/04
Inventor 李阳
Owner DONGGUAN XINLONG OPTOELECTRONICS MATERIAL
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