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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] A method for preparing a light diffusion plate for internally illuminated billboards includes the following steps:

[0029] (1) Weigh the following dry materials: 100 kg of PMMA resin, 10 kg of SAN resin, 2 kg of nano silica, 0.5 kg of p-octylphenyl salicylate, 0.5 kg of scratch-resistant agent; high-speed blending 3 -10min;

[0030] (2) Melt and mix through a twin-screw extruder at 180°C, cool the extruded strips to room temperature through a circulating water tank, blow through a blower, and then pelletize to obtain an internally illuminated light diffusion plate for billboards.

[0031] Wherein, the scratch-resistant 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 2'-dihydroxy-4,4'-dimethoxybenzophenone-5,5'-sodium disulfonate.

Example Embodiment

[0032] Example 2

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

Example Embodiment

[0034] Example 3

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

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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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