Polycarbonate material composition of reinforced LED lamp shade and preparation method and LED lamp shade

Abstract

The invention provides a polycarbonate material composition of a reinforced LED lamp shade. The polycarbonate material composition comprises 100-120 parts of polycarbonate, 10-15 parts of polymethyl methacrylate, 5-15 parts of light scattering master batch, 4-8 parts of interface reinforcing phase, 2-4 parts of inorganic nanoparticles, 2.0-2.5 parts of methoxyl polyglycol acetic acid, 2-4 parts of a compatilizer MAH-g-EPDM and 0.5-1.5 parts of other functional additives, wherein the interface reinforcing phase is at least one of nanometer aluminum oxide crystal particles or crystal whiskers. The polycarbonate material composition of the reinforced LED lamp shade, which is provided by the invention, is relatively excellent in light permeability and light scattering property, is capable of eliminating the phenomena of halo or dark spot generated from the dispersibility, and is also relatively excellent in mechanical property.

Description

technical field [0001] The invention belongs to the technical field of resin composite materials, and in particular relates to a polycarbonate material composition of an enhanced LED lampshade, a preparation method and an LED lampshade. Background technique [0002] The main technical parameters that characterize the performance of light diffusing materials include light transmittance and haze. The light transmittance indicates the overall utilization of the incident light by the light diffusing material, while the haze indicates the degree to which the incident light deviates from the original incident direction, so the two can be used to characterize the use efficiency and diffusion degree of the incident light introduced by the light diffusing material . For light diffusing materials based on particle scattering, an increase in haze will generally result in a decrease in light transmittance. The light transmittance of the lampshades used in people's daily life is not hi...

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Problems solved by technology

[0004] However, during the production and preparation of the above materials, especially during the curing process, the nanoparticle material itself is very easy to agglomerate, which tends to make the dispersion of the additives insufficient, resulting in insufficient uniformity of the final overall material, resulting in halo or light diffusion. Dark spots and other phenomena; at the same time, the above-mentioned various inorganic and organic nano-components are added to the polycarbonate material, which significantly reduces the compatibility with the polycarbonate substrate and the final toughness

At the same time, even though there are the above-mentioned improvement measures in the CN102532857A patent document, the total light transmittance in the performance test data of the final overall material is still only less than 60%, and the light transmittance still needs to be further improved, and most After the light energy is absorbed by the material, it is easy to further cause the stability of the nano-components inside the material, and also accelerate the aging of the resin

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