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Improved light guiding plate and production method thereof

A light guide plate and improved technology, applied in the field of light guide plates, can solve the problems of affecting the service life of products, high temperature resistance, rapid yellowing of PS materials, etc., and achieve the effect of improving service life.

Inactive Publication Date: 2018-11-02
佛山市德联邦盛光电科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the defect that PS material itself is not resistant to high temperature, it will cause rapid yellowing of PS material when it is continuously lit in a working environment with high temperature and strong oxidation, or when it is used outdoors, which will seriously affect product lifespan

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An improved light guide plate, in parts by weight, comprising the following raw materials: 99.9 parts of polystyrene, 0.1 part of antioxidant, 0.2 part of ultraviolet absorber, 0.3 part of light stabilizer, 0.2 part of toughening agent, and 0.05 part of heat stabilizer Copies.

[0031] The antioxidant 330 is used as the antioxidant.

[0032] The ultraviolet absorber is UV-328.

[0033] The light stabilizer uses light stabilizer 3346.

[0034] The toughening agent adopts styrene-butadiene thermoplastic elastomer.

[0035] The heat stabilizer adopts tin stabilizer.

[0036] The manufacturing method of the above-mentioned improved light guide plate specifically includes the following steps:

[0037] 1) Weigh the polystyrene, antioxidant, ultraviolet absorber, light stabilizer, toughening agent and heat stabilizer of the formula, add it from the hopper (automatic mixer), and stir at a constant speed for 5 minutes. Under the action of the rotating screw (extrusion screw), the friction...

Embodiment 2

[0040] An improved light guide plate, in parts by weight, comprising the following raw materials: 99.5 parts of polystyrene, 0.05 parts of antioxidant, 0.05 parts of ultraviolet absorber, 0.05 parts of light stabilizer, 0.1 part of toughening agent, and 0.01 part of heat stabilizer Copies.

[0041] Antioxidant 565 is used as the antioxidant.

[0042] The ultraviolet absorber uses ultraviolet absorber UV-326.

[0043] The light stabilizer 622 is used as the light stabilizer.

[0044] The toughening agent adopts polyamide resin.

[0045] The heat stabilizer adopts tin stabilizer.

[0046] The manufacturing method of the above-mentioned improved light guide plate specifically includes the following steps:

[0047] 1) Weigh the polystyrene, antioxidant, ultraviolet absorber, light stabilizer, toughening agent and heat stabilizer of the formula, add it from the hopper (automatic mixer), and stir at a constant speed for 3 minutes. Under the action of the rotating screw (extrusion screw), the ...

Embodiment 3

[0050] An improved light guide plate, based on parts by weight, comprising the following raw materials: 99.7 parts of polystyrene, 0.08 parts of antioxidants, 0.1 parts of ultraviolet absorbers, 0.15 parts of light stabilizers, 0.15 parts of toughening agents, and 0.03 parts of heat stabilizers Copies.

[0051] Antioxidant 1076 is used as the antioxidant.

[0052] The ultraviolet absorber uses ultraviolet absorber UV-531.

[0053] The light stabilizer uses light stabilizer 944.

[0054] The toughening agent adopts ethylene propylene rubber.

[0055] The heat stabilizer adopts tin stabilizer.

[0056] The manufacturing method of the above-mentioned improved light guide plate specifically includes the following steps:

[0057] 1) Weigh the polystyrene, antioxidant, ultraviolet absorber, light stabilizer, toughening agent and heat stabilizer of the formula, add it from the hopper (automatic mixer), and stir it at a constant speed for 4 minutes. Under the action of the rotating screw (extru...

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PUM

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Abstract

The invention discloses an improved light guiding plate and a production method thereof, belonging to the technical field of light guiding plates. The improved light guiding plate contains the following raw materials in parts by weight: 99.5-99.9 parts of polystyrene, 0.05-0.1 part of an antioxidant, 0.05-0.2 part of an ultraviolet light absorber and 0.05-0.3 part of a light stabilizer. Compared with the prior art, the improved light guiding plate has the advantages that by adding the yellowing-resistant, anti-UV and high-temperature-resistance antioxidant, the ultraviolet light absorber, thelight stabilizer and the like, the yellowing speed of PS is effectively delayed, so that the service life of a product is prolonged.

Description

Technical field [0001] The invention relates to an improved light guide plate and a manufacturing method thereof, and belongs to the technical field of light guide plates. Background technique [0002] At present, light guide plates produced with PS substrates are used in various displays, such as LED flat-panel lights, flat-panel displays, and backlight modules for televisions. However, because the PS material itself has the defect that it is not resistant to high temperatures, continuous lighting in a working environment with high temperature and strong oxidation, or when used outdoors, will cause the PS material to produce rapid yellowing, which will seriously affect The service life of the product. Summary of the invention [0003] In view of the above-mentioned problems in the prior art, the present invention provides an improved light guide plate, which effectively slows down the yellowing speed of PS, thereby increasing the service life of the product. [0004] In order to ...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L53/02C08L77/00C08L23/16C08K5/13C08K5/3475C08K5/00C08K5/378C08K5/132G02B6/00G02B1/00
CPCC08L25/06C08L2201/08G02B1/00G02B6/0011C08L53/02C08L77/00C08L23/16C08K5/13C08K5/3475C08K5/00C08K5/378C08K5/132
Inventor 谭炳幸袁志华
Owner 佛山市德联邦盛光电科技股份有限公司
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