Anti-glare diffusion plate and preparation process thereof

Abstract

An anti-glare diffusion plate is provided. The anti-glare diffusion plate comprises the following components in percent by mass: 99.7%-99.95% of a polycarbonate; and 0.05%-0.3% of a potassium perfluoro-butanesulfonate flame retardant, wherein the polycarbonate is a polycarbonate with class B1 flame retardant performance. The surface of the anti-glare diffusion plate is composed of a plurality of convex semicircles or convex pyramids arranged continuously. A preparation process of the anti-glare diffusion plate comprises: mixing the flame retardant with a portion of the polycarbonate resin rawmaterial, and performing melting at a high temperature in a color masterbatch machine to prepare a color masterbatch; then uniformly mixing the color masterbatch with the other portion of the polycarbonate raw material by a V-type mixer and then performing melting; and then flowing the molten material into a calendering roller group with concave semicircles or concave quadrangular pyramids on thesurface, performing pressing into a diffusion plate with a uniform thickness, and finally performing conventional treatments such as cooling to obtain the anti-glare diffusion plate.

Description

technical field [0001] The invention generally belongs to the technical field of optical diffusion plates, and in particular relates to an anti-glare diffusion plate and a molding process thereof. Background technique [0002] UGR (Unified Glare Rating, also known as unified glare value, is a psychological parameter that measures the subjective reaction of the uncomfortable feeling caused by the light emitted by the lighting device in the indoor visual environment). Diffusion plate, different from traditional diffusion plate, its low-gloss treatment method and formula technology make its diffusion performance better and enhance the uniform light performance of the diffusion plate. It is an ideal solution to effectively prevent glare. [0003] In the lighting application of UGR, the UGR value is different, the lighting effect is obviously different, and the visual and psychological differences are also large. With the improvement of the quality of life, people are pursuing a...

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Problems solved by technology

[0005] In order to overcome the defects of poor optical properties, poor dimensional stability, and unsatisfactory flame-retardant performance of the anti-glare diffusion plate in the prior art, the present invention provides an anti-glare diffusion plate, which uses polycarbonate with B1-level flame-retardant performance Ester (PC) raw materials are modified by adding high-efficiency flame retardants, and anti-glare (UGR) diffuser plates that meet the flame-retardant requirements of TP(a) are produced through high-temperature melting and extrusion processes, and the anti-glare diffuser plates are provided preparation process

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