Thermally conductive insulating flame retardant nylon alloy used for LED (light-emitting diode) 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 heat-conducting, insulating and flame-retardant nylon alloy for LEDs and a preparation method thereof. The invention is suitable for making molding compositions for LED insulation and heat dissipation systems. Background technique [0002] Light-emitting diode, also known as LED, is a semiconductor electronic component that can emit light. LEDs first appeared in 1962. In the early days, they could only emit low-intensity red light, and later developed other versions of monochromatic light. Up to now, the light that LED can emit has spread over visible light, infrared ray and ultraviolet ray. At present, LED has been widely used in displays, TV lighting decoration and lighting and other fields. [0003] In the LED structure, the design and use of heat dissipation materials are crucial to the light efficiency and service life of the LED. Generally, about 15% to 20% of the energy in t...

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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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