Thermally conductive insulating flame-retardant nylon alloy for LED and preparation method thereof

Abstract

The invention discloses a thermally conductive insulating flame retardant nylon alloy used for an LED (light-emitting diode) and a preparation method thereof, aiming to solve the problems that plastics are adopted as LED insulating materials in existing methods and have poorer thermal conductivity while the existing high thermal conductivity plastics filled by adopting carbon or graphite packing have poorer insulating properties. The nylon alloy comprises the following components by weight percent: 5-80% of first nylon resin, 5-75% of magnesium oxide, 1-30% of flame retardants, 0.1-1.5% of antioxidant, 0.1-3% of lubricating agents and 1-15% of compatilizers. The nylon alloy is a polymer material with good thermal conductivity, insulating property, aging resistance and flame retardance and can be used for producing LED lamp radiators instead of metals. Experimental results show that the nylon alloy has higher tensile strength, elongation at break, bending strength, elastic modulus, notch impact strength and thermal conductivity coefficient and better insulating property and flame retardance, has the effect of effectively solving the problems of existing materials and has a better application prospect.

Description

Technical field [0001] The invention relates to the field of materials, in particular to a thermally conductive, insulating, flame-retardant nylon alloy for LEDs and a preparation method thereof. The invention is suitable for making a molding composition for an LED insulation and heat dissipation system. Background technique [0002] Light-emitting diodes, also known as LEDs, are semiconductor electronic components that can emit light. LED first appeared in 1962. In the early days, it could only emit red light with low luminosity. Later, other monochromatic versions were developed. Today, the light emitted by LEDs has spread to visible light, infrared light and ultraviolet light. At present, LED has been widely used in the fields of display, TV lighting decoration and lighting. [0003] In the LED structure, the design and use of heat dissipation materials are critical to the luminous efficacy and service life of the LED. Generally, about 15%-20% of the LED input power is conve...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a thermally conductive insulating material for LEDs to solve the problem that plastics are used as LED insulating materials, which have poor thermal conductivity, and existing high thermally conductive plastics filled with carbon or graphite fillers have poor insulating properties. Flame-retardant nylon alloy and preparation method thereof

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