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Light diffusion plate for illuminated advertising board and preparation method of light diffusion plate

A technology of billboards and diffusion plates, applied in optics, optical components, instruments, etc., can solve the problems of poor toughness, low thermal deformation temperature, and low oxygen index of acrylic plates, and achieve good scratch resistance, good optical properties, Good flame retardant effect

Active Publication Date: 2015-10-21
上海金泛斯智能标识有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, acrylic panels on the market have disadvantages such as poor toughness and fragility, poor strength and hardness of acrylic veneers, easy scratches, and high cost.
Moreover, its heat distortion temperature is low, only about 80°C, and the oxygen index is low, and the amount of smoke is large, which seriously affects its safety in use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing a light diffusion plate for an internally illuminated billboard, comprising the steps of:

[0029] (1) Weigh the dry following raw materials: 100 kg of PMMA resin, 10 kg of SAN resin, 2 kg of nano silicon dioxide, 0.5 kg of p-octylphenyl salicylate, 0.5 kg of scratch-resistant agent; -10min;

[0030] (2) Melting and mixing by a twin-screw extruder at 180° C., cooling the extruded strands to normal temperature through a circulating water tank, drying them with a hair dryer, and then granulating to obtain a light diffusion plate for an internally illuminated billboard.

[0031] Wherein, the anti-scratch agent is composed of the following components in parts by weight: 10 parts of N,N'-ethylene bisstearamide, 5 parts of 2-hydroxy-4-methoxybenzophenone, 2 parts , 5 parts of sodium 2'-dihydroxy-4,4'-dimethoxybenzophenone-5,5'-disulfonate.

Embodiment 2

[0033] Prepared according to the method described in Example 1, wherein the anti-scratch agent consists of the following components in parts by weight: 10 parts of N,N'-ethylene bisstearamide, 2-hydroxy-4-methoxy 10 parts of base benzophenone.

Embodiment 3

[0035] Prepared according to the method described in Example 1, wherein the anti-scratch agent consists of the following components in parts by weight: 10 parts of N,N'-ethylene bisstearamide, 2,2'-dihydroxy-4 , 10 parts of sodium 4'-dimethoxybenzophenone-5,5'-disulfonate.

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PUM

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Abstract

The invention discloses a light diffusion plate for an illuminated advertising board and a preparation method of the light diffusion plate. The light diffusion plate for the illuminated advertising board is characterized in that raw materials of the light diffusion plate comprise the following components of 100 parts of PMMA (Polymethyl Methacrylate) resin, 5 to 15 parts of SAN (Styrene Acrylonitrile) resin, 1 to 10 parts of nanosilicon dioxide, 0.1 to 1 part of octylphenyl salicylate and 0.5 to 3 parts of scratch resisting agent. The light diffusion plate for the illuminated advertising board has the advantages of scratch resistance, light transmittance, good flame retardance, no halogenated flame retardant and no secondary pollution.

Description

technical field [0001] The invention relates to the field of composite plates, in particular to a light diffusion plate for an interior-illuminated billboard and a preparation method thereof. Background technique [0002] Acrylic, also known as PMMA or acrylic, comes from English acrylic (acrylic plastic). The chemical name is polymethyl methacrylate, commonly known as plexiglass. It is an important plastic polymer material developed earlier. It has good transparency, chemical stability and weather resistance, easy to dye, easy to process, and beautiful appearance. With very low birefringence, it has a wide range of applications in the construction industry. [0003] There are many types of acrylic sheets. Ordinary boards include: transparent boards, dyed transparent boards, milky white boards, colored boards; Surface pattern plate, frosted plate, pearlescent plate, metal effect plate, etc. Different performance, different colors and visual effects to meet ever-changing ...

Claims

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Application Information

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IPC IPC(8): C08L33/12C08L25/12C08K13/02C08K3/36C08K3/32C08K5/132C08K5/20C08K5/42G02B1/04
Inventor 高恒云
Owner 上海金泛斯智能标识有限公司
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