Flame-retardant light-diffusing PP material with thermal-oxidative aging resistant function and preparation method thereof

Abstract

The invention discloses a flame-retardant light-diffusing PP material with the thermal-oxidative aging resistant function and a preparation method thereof. The PP material comprises a polypropylene resin, a composite flame retardant, a light diffusing agent, a composite antioxidant, a high temperature resistant heat stabilizer, an anti-ultraviolet agent, and other auxiliary agents. The prepared flame-retardant light-diffusing PP material has the characteristics of high luminous flux, good flame retardancy, no precipitation of the flame retardant during the use, long service life, and the like.

Description

technical field [0001] The invention relates to a flame-retardant light-diffusing PP material with the function of resisting heat and oxygen aging and a preparation method thereof. Background technique [0002] LED energy-saving lighting materials have achieved rapid development both at home and abroad in recent years. Because of their high luminous efficiency, low energy consumption, and long life, they have become the preferred lighting products in the lighting field. The light diffusion material used in the LED lamp housing is mostly polycarbonate material PC, which is one of the five major engineering plastics. It has the characteristics of high light transmittance, good heat resistance, and high mechanical strength. It has been widely used in the field of lighting. Although PC material has good performance, its price is high. Many LED lamp factories consider using light diffusion PP to replace light diffusion PC material in order to reduce costs. However, PP material is...

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Problems solved by technology

The light diffusion material used in the LED lamp housing is mostly polycarbonate material PC, which is one of the five major engineering plastics. It has the characteristics of high light transmittance, good heat resistance, and high mechanical strength. It has been widely used in the field of lighting. Although PC material has good performance, its price is high. Many LED lamp factories consider using light diffusion PP to replace light diffusion PC material in order to reduce costs. However, PP material is a general engineering plastic, and its performance is not as good as PC material in all aspects, mainly in the following aspects: Aspects: 1. PP is not as good as PC in terms of heat and oxygen aging resistance, especially when the lighting test is performed at high temperature and heat aging, the connection between the lamp cup and the lampshade is prone to cracking, which seriously affects the service life of the LED lamp. 2. Flame retardant In terms of performance, LED lamps often require parts to be flame retardant, PC itself is a V-2 product, and PP materials need to add flame retardants to reach V-2 level due to their low oxygen index, but the addition of flame retardants will affect The light transmittance of the material causes a decrease in the luminous flux, which affects the use of PP materials.

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