LED lampshade material and preparation method thereof

Abstract

The invention relates to a lampshade material. The lampshade material comprises the following raw materials in parts by mass: 100 parts of PMMA, 4-6 parts of an organic silicon material, 1-2 parts of methylacryloyl methoxyl silane, 0.5-1 part of polyethylene glycol, 0.4-0.8 part of an organic silicon photodiffusion agent, 1-1.5 parts of carboxymethylcellulose, 1-2 parts of nano negative ion powder, 0.5-1.5 parts of nano yttrium oxide, 2-5 parts of polytetrafluoroethylene ultrafine powder, 0.5-1.5 parts of an antioxidant and 0.5-1.5 parts of a light stabilizing agent. The invention further relates to a preparation method of the lampshade material. The lampshade material is good in light permeability and gentle in light, the thermal expansion coefficient of the lampshade material is matched with an LED chip, and the wafer of an LED lamp is not bent because of temperature change in normal operation, so that the LED lamp is solid and stable in overall structure in the use process, the service life can be prolonged, the lampshade material has an air purification function, the preparation method of the lampshade material is simple, the dispersing property of the lampshade material can be remarkably improved, the light transmittance rate and the haze degree are remarkably increased, and the mechanical property and the surface hardness are remarkably improved.

Description

technical field [0001] The invention relates to an LED lampshade material, in particular to an LED lampshade material with good thermal expansion coefficient and air purification effect and a preparation method thereof. Background technique [0002] The LED light source is a point light source. The point light source has a narrow illumination range and will cause glare to the human eye. Generally, the point light source is converted into a surface light source through the light scattering effect of the lampshade to facilitate people's daily use. Polycarbonate is widely used in lampshade materials. In order to endow polycarbonate with light-scattering function, some polymers or inorganic particles with different refractive indices are keyed into the continuous phase of thermoplastic resin as dispersed phase, which not only affects its transparency Light performance, and will increase the thermal expansion coefficient of the lampshade material several times or even dozens of t...

AI Technical Summary

Problems solved by technology

However, the existing LED lamps with air purification function have a small lighting range, and the release of negative oxygen ions is very limited during normal operation, which affects the air purification effect and cannot meet the needs of indoor environments with large spaces.