Cooling polycarbonate composite material and preparation method thereof as well as preparation method of daylight lamp holder bracket

Abstract

The invention discloses a cooling polycarbonate composite material and a preparation method thereof as well as a preparation method of a daylight lamp holder bracket. The cooling polycarbonate composite material comprises the following raw materials by weight percent: 80-82wt% of polycarbonate, 5-15wt% of micron-scale aluminum oxide whisker fiber, 3-10wt% of micron-scale alumina, 3-10wt% of micron-scale magnesium oxide, 2-6wt% of compatilizer, 1-3wt% of a dispersant, 1-3wt% of a lubricating agent, 0.3-1wt% of a coupling agent, 0.5-1wt% of an antioxidant, and 0.5-1wt% of an anti-ultraviolet agent. The cooling polycarbonate composite material disclosed by the invention is good in mechanical property and chemical property, good in corrosion resistance and high-temperature resistance, good in product stability, convenient to process and mold, and environmental friendly, and can be recycled; the daylight lamp holder bracket prepared from the cooling polycarbonate composite material is low in surface temperature; a light-emitting diode (LED) is low in junction temperature, rapid to cool, and good in insulativity; the overall lamp is light in weight; the defect of short service life of the traditional product is removed; the insecurity factors generated when an aluminum substrate guides the cooling effect are removed.

Description

technical field [0001] The invention relates to a heat dissipation polycarbonate composite material and its application technology. Background technique [0002] As a new generation of green light source and lighting technology with "high efficiency, environmental protection and energy saving", LED lighting has been rapidly developed and widely used in the global lighting industry in recent years. However, the higher the operating environment temperature of LED lighting, the shorter the service life . Therefore, the heat dissipation (device) system design and application of LED lighting lamps will play a crucial role in determining the luminous efficiency and service life of LEDs. [0003] At present, one of the bottlenecks in the difficulty of dissipating high heat generated by the integrated circuit system of the crystal source chip in the LED lighting lamp in the working state lies in the design and application of the thermal interface material structure of the connect...

AI Technical Summary

Problems solved by technology

[0005] Traditional thermal interface materials usually use die-cast aluminum (AI), which has the advantages of good thermal conductivity, high heat transfer rate, and easy processing and molding, but the disadvantages are: large specificity, poor electrical insulation, and serious pollution during processing and forming , low prod