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Light diffusion plate and preparation method thereof

A technology of light diffusing plate and light diffusing agent, applied in the direction of coating, etc., to achieve the effect of strong toughness, high surface hardness, reducing black spots or unqualified

Inactive Publication Date: 2019-03-08
江苏恒隆通新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a light diffusion plate and its preparation method and its preparation method. By improving the mold, the raw materials in the diffusion plate do not need to undergo secondary granulation, and are directly mixed and passed through Die extrusion molding can reduce the phenomenon of uneven surface and low light transmittance caused by uneven mixing in the traditional production process, and the hardness of the surface of the diffusion plate is increased by adding wear-resistant ceramic materials; and choose the appropriate Light diffusing agent, which makes the diffuser plate have high light transmittance, high haze and certain mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A light diffusion plate and a preparation method thereof, which consist of the following components in terms of parts by mass: 95 parts of optical grade PP, 3 parts of optical grade PS, 2 parts of optical grade PMMA, 2 parts of optical grade PC, organic silicon microspheres (particles) Diameter of 2um) 0.47 parts, titanium dioxide 0.047 parts, silicone oil 9.48 parts, talc powder 0.2 parts, nano-aluminum oxide 7.95 parts, titanium diboride fiber 1.37 parts, ceramic fiber 0.34 parts, quartz sand 0.11 parts, ethyl silicate 0.11 parts of ester, 0.11 parts of phenolic resin.

[0029] The present invention also discloses a method for preparing the above-mentioned light diffusion plate, comprising the following steps:

[0030] A. Weigh optical-grade PP, optical-grade PS, optical-grade PMMA, optical-grade PC, silicone microspheres, titanium dioxide, silicone oil, and talcum powder in proportion, and stir at high speed for 15 minutes to make them evenly mixed;

[0031] B. Dr...

Embodiment 2

[0036] A light diffusion plate and a preparation method thereof, which are composed of the following components in parts by mass: 98 parts of optical grade PP, 6 parts of optical grade PS, 3 parts of optical grade PMMA, 3 parts of optical grade PC, silicone microspheres (particle size 2um) 0.66 parts, titanium dioxide 0.095 parts, silicone oil 14.24 parts, mica powder 0.6 parts, nano aluminum oxide 7.95 parts, titanium diboride fiber 1.37 parts, ceramic fiber 0.34 parts, quartz sand 0.11 parts, ethyl silicate 0.11 parts, 0.11 parts of phenolic resin.

[0037] The present invention also discloses a method for preparing the above-mentioned light diffusion plate, comprising the following steps:

[0038] A. Weigh optical grade PP, optical grade PS, optical grade PMMA, optical grade PC, silicone microspheres, titanium dioxide, silicone oil, and mica powder in proportion, and stir at high speed for 20 minutes to make them evenly mixed;

[0039] B. Dry the uniformly mixed raw mate...

Embodiment 3

[0044] A light diffusion plate and a preparation method thereof, which consist of the following components in terms of parts by mass: 100 parts of optical grade PP, 10 parts of optical grade PS, 5 parts of optical grade PMMA, 5 parts of optical grade PC, organic silicon microspheres (particles) Diameter of 2um) 0.91 parts, titanium dioxide 0.82 parts, silicone oil 18.26 parts, sodium carbonate 0.9 parts, nano aluminum oxide 7.95 parts, titanium diboride fiber 1.37 parts, ceramic fiber 0.34 parts, quartz sand 0.11 parts, ethyl silicate 0.11 parts of ester, 0.11 parts of phenolic resin.

[0045] The present invention also discloses a method for preparing the above-mentioned light diffusion plate, comprising the following steps:

[0046] A. Weigh optical-grade PP, optical-grade PS, optical-grade PMMA, optical-grade PC, silicone microspheres, titanium dioxide, silicone oil, and sodium carbonate in proportion, and stir at high speed for 30 minutes to make them evenly mixed;

[00...

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Abstract

The invention discloses a light diffusion plate and a preparation method thereof. The light diffusion plate comprises, by mass, 95-100 parts of optical PP (polypropylene), 3-10 parts of optical PS (polystyrene), 2-5 parts of optical PMMA (polymethylmethacrylate), 2-5 parts of optical PC (polycarbonate), 10-25 parts of a light diffuser, 0.2-0.9 part of a nucleating agent, and 5-10 parts of a wear-resistant ceramic material, wherein the light diffuser is made with organosilicon microspheres, titanium dioxide and silicone oil in a mass ratio of (0.5-1):(0.05-0.9):(10-20). The light diffusion plate prepared herein helps relieve surface unevenness and low transparency due to non-uniform mixing in the traditional production process; the wear-resistant ceramic material helps improve the surface hardness of the light diffusion plate; the suitable light diffuser provides the light diffusion plate with high transparency, high fog level and certain mechanical properties.

Description

technical field [0001] The invention belongs to the production technical field of a light diffusion plate, and in particular relates to a light diffusion plate and a preparation method thereof. Background technique [0002] The light diffusion plate uses chemical or physical means to use the physical imagination of refraction, reflection and scattering when light encounters two media with different refractive indices on the way, and it is placed on PMMA, PC, PS, PP and other substrates. Inorganic or organic light diffusing agents are added; or the light is artificially adjusted through the array arrangement of the micro-feature structure on the surface of the substrate, so that the light can be refracted, reflected, and scattered in different directions, thereby changing the path of light and achieving sufficient dispersion of incident light. Color in order to produce the effect of optical diffusion. [0003] The current light diffusion adopts a masterbatch made of a single...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L25/06C08L33/12C08L69/00C08L83/04C08K3/22C08K3/26C08K3/34C08J7/04
CPCC08J7/0427C08J2323/12C08J2425/06C08J2433/12C08J2461/06C08J2469/00C08J2483/04C08K2003/2241C08K2003/262
Inventor 廖志强许云刚
Owner 江苏恒隆通新材料科技有限公司
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