Light diffusing agent, PMMA (polymethyl methacrylate) light diffusing plate and manufacturing method thereof

A technology of light diffusing agent and light diffusing plate, which is applied in the direction of diffusing elements to achieve the effect of expanding the scope of use and improving performance

Active Publication Date: 2013-07-10
石狮市天生化工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the existing reports on the preparation technology of light-diffusing materials, it is not involved in adding a light-diffusing agent containing POSS polymer to improve the light transmittance and scattering properties of the light-diffusing plate

Method used

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  • Light diffusing agent, PMMA (polymethyl methacrylate) light diffusing plate and manufacturing method thereof
  • Light diffusing agent, PMMA (polymethyl methacrylate) light diffusing plate and manufacturing method thereof
  • Light diffusing agent, PMMA (polymethyl methacrylate) light diffusing plate and manufacturing method thereof

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Embodiment Construction

[0034] The objects, advantages and features of the present invention will be explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of applying the technical solutions of the present invention, and all technical solutions formed by adopting equivalent replacements or equivalent transformations fall within the protection scope of the present invention.

[0035] 1. Preparation of Light Diffuser

[0036] Add 3g of PVA1788 dispersant and 400ml of deionized water into the reactor, mechanically stir and dissolve at 50°C, keep warm for 20min, add 80ml of monomer mixture solution dissolved with 1.5g of initiator BPO, raise the temperature to 75°C, keep warm for 4h, then every 5 Keep warm for 2 hours at ℃ until the temperature reaches 95℃. After 2 hours of reaction, stop the reaction. Repeat the suction filtration and hot water washing of the sample. You can expand or reduce the formula according to your needs. light d...

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PUM

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Abstract

The invention relates to a light diffusing agent, a PMMA (polymethyl methacrylate) light diffusing plate and a manufacturing method thereof. The light diffusing agent is a random copolymer of styrene (St) and methacryloxypropylisobutyl polyhedral oligomer silsesquioxane (MAiBuPOSS). The PMMA light diffusing plate comprises the following components in percentage by weight: 97.0-99.5% of polymethyl methacrylate and 0.5-3.0% of light diffusing agent. The refractive indexes of the styrene component and the MAiBuPOSS component in the light diffusing agent differ from the refractive index of PMMA; when passing through a material, a light ray is refracted for many times and becomes bright and soft after passing through a substrate. Meanwhile, the MAiBuPOSS component ensures that the dispersibility of PS (Poly Styrene) in PMMA is remarkably improved, excellent light transmission and light scattering are obtained, and the optical efficacy is high. The PMMA light diffusing plate manufactured by the invention can be used for LED (Light Emitting Diode) illumination lamps, such as a plate lamp, an advertising lamp box, a professional film viewer, a down lamp and the like.

Description

technical field [0001] The invention relates to a light-diffusing agent and a preparation method thereof. The light-diffusing agent contains POSS polymer, which endows a light-diffusing plate with excellent light transmittance and light-scattering properties. Background technique [0002] LED light source is the product of the rapid development of semiconductor technology and the concept of "green lighting". It has the characteristics of energy saving, environmental protection, long life and small size, and is widely used in various indications, displays, decorations, backlights, and general lighting. and city night lights field. Compared with the traditional light source, the LED light source emits concentrated and strong light, and the light is dazzling. Therefore, how to make the light soft while minimizing light loss is the primary problem to be solved. At present, the main solution is to use high polymer light diffusion material with scattering ability as the lampshade...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F230/08C08L33/12C08L25/14C08F120/14G02B5/02
Inventor 郑火炎戴李宗钟丽娜张龙许一婷罗伟昂曾碧榕
Owner 石狮市天生化工有限公司
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