Master batches, resin composition, diffusion plate and preparation method of diffusion plate

A technology of resin composition and masterbatch, which is applied in the field of resin products, can solve problems such as the decrease of transmittance, and achieve the effects of good haze, high shielding and good mechanical properties

Inactive Publication Date: 2015-11-11
REGENCY OPTICS ELECTRON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The diffuser plate is prepared from a resin composition as a raw material. The two main technical indicators for evaluating the diffuser plate are transmittance and haze. Usually, the haze and transmittance of materials are contradictory. Traditional diffuser plates increase light scattering. The ability usually adopts the method of increasing the light diffusing agent, and the absorption and covering of light by the light diffusing agent will cause the decrease of the transmittance

Method used

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  • Master batches, resin composition, diffusion plate and preparation method of diffusion plate
  • Master batches, resin composition, diffusion plate and preparation method of diffusion plate
  • Master batches, resin composition, diffusion plate and preparation method of diffusion plate

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preparation example Construction

[0056] see figure 1 , the present invention also provides the preparation method of the above-mentioned diffusion plate, comprising:

[0057] S10: mix the components of the masterbatch evenly in proportion, then put them into a twin-screw extruder to extrude and granulate, and prepare the masterbatch after cooling.

[0058] By extruding and granulating with a twin-screw extruder, the components of the masterbatch can be uniformly mixed, and the prepared masterbatch is easier to take out and store. In this step, the twin-screw extruder is a twin-screw extruder with seven temperature zones, and the temperature of each zone and the temperature of the die head are respectively: the temperature of the first zone is 173-178°C; the temperature of the second zone is 183-188°C; The temperature of the zone is 195-200°C; the temperature of the fourth zone is 210-220°C; the temperature of the fifth zone is 225-230°C; the temperature of the sixth zone is 215-220°C; the temperature of the ...

Embodiment 1

[0065] After mixing 100Kg general-purpose polystyrene, 5Kg silicone resin, 1.1Kg antioxidant, 0.6Kg ultraviolet absorber, 0.6Kg light stabilizer, 0.025Kg mineral oil, and 0.03Kg brightener, they are mixed in a twin-screw extruder The masterbatch obtained after middle extrusion granulation and natural cooling for 3.5-3.5 hours. The temperature of the first zone of the twin-screw extruder is 175°C, the temperature of the second zone is 185°C, the temperature of the third zone is 195°C, the temperature of the fourth zone is 215°C, the temperature of the fifth zone is 230°C, the temperature of the sixth zone is 220°C, and the temperature of the seventh zone is 220°C. The zone temperature is 215°C, the die head temperature is 210°C; the production rate is 220Kg / h.

[0066] Mix 100Kg general-purpose polystyrene, 25Kg masterbatch, 8Kg high-impact polystyrene, 2.6Kg polypropylene, and 0.025Kg mineral oil evenly, extrude and granulate in a single-screw extruder to obtain resin composit...

Embodiment 2

[0068] After mixing 100Kg general-purpose polystyrene, 5Kg silicone resin, 1.1Kg antioxidant, 0.6Kg ultraviolet absorber, 0.6Kg light stabilizer, 0.025Kg mineral oil, and 0.03Kg brightener, they are mixed in a twin-screw extruder The masterbatch obtained after middle extrusion granulation and natural cooling for 3.5-3.5 hours. The temperature of the first zone of the twin-screw extruder is 175°C, the temperature of the second zone is 185°C, the temperature of the third zone is 195°C, the temperature of the fourth zone is 215°C, the temperature of the fifth zone is 230°C, the temperature of the sixth zone is 220°C, and the temperature of the seventh zone is 220°C. The zone temperature is 215°C, the die head temperature is 210°C; the production rate is 220Kg / h.

[0069] Mix 100Kg general-purpose polystyrene, 25Kg masterbatch, 6Kg high-impact polystyrene, 3.2Kg polypropylene, and 0.025Kg mineral oil evenly, extrude and granulate in a single-screw extruder to obtain resin composit...

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Abstract

The invention discloses master batches, a resin composition, a diffusion plate and a preparation method of the diffusion plate, wherein the resin composition comprises the following component in parts by mass: 100 parts of general polystyrene, 18-30 parts of the master batches, 5-10 parts of high-impact polystyrene, 2-3 parts of polypropylene and 0.02-0.025 part of mineral oil. The master batches comprise the following components in parts by mass: 100 parts of general polystyrene, 3-8 parts of organic silicon resin, 0.5-1.2 parts of an antioxidant, 0.4-0.8 part of an ultraviolet absorbent, 0.5-0.8 part of a light stabilizer, 0.015-0.03 part of mineral oil and 0.015-0.035 part of a brightening agent. The diffusion plate prepared by using the resin composition is high in light source utilization ratio, and the product is anti-bending and good in shielding property and has high brilliance and a relatively good shielding effect.

Description

technical field [0001] The invention relates to the field of resin products, in particular to a masterbatch, a resin composition, a diffusion plate and a preparation method for the diffusion plate. Background technique [0002] Generally, a backlight module of a display device mainly includes a light source, a light guide plate, a light reflection plate, a diffusion plate, and a brightness enhancement film. Among them, the diffusion plate also has the functions of making the brightness of the light emitted from the light source lamp uniform, and covering the bright lines. [0003] The diffuser plate is prepared from a resin composition as a raw material. The two main technical indicators for evaluating the diffuser plate are transmittance and haze. Usually, the haze and transmittance of materials are contradictory. Traditional diffuser plates increase light scattering. Ability usually adopts the method of increasing the light diffusing agent, and the absorption and covering...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L83/04C08L51/04C08L23/12C08L91/06C08K5/134C08J3/22B29C47/92B29C48/92
CPCC08J3/22C08L23/12C08L25/06C08L83/04
Inventor 翁晓瑜黄秀孟梁满意
Owner REGENCY OPTICS ELECTRON CORP
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