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Polyphenylene oxide composition for LED display

A technology of LED display and polyphenylene ether, which is applied in the field of polymer alloys, can solve problems such as difficult processing and molding, unsuitable materials, high melt viscosity, etc., and achieve improved fluidity, good ink adhesion, and high temperature deformation resistance. Effect

Active Publication Date: 2008-06-11
广东瑞能新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyphenylene ether (PPO) has excellent mechanical properties and electrical properties, but its high melt viscosity and poor fluidity make it difficult to process and shape, so it is generally used in various modified varieties, such as PPO and PS, PP Polyphenylene ether alloys such as polyphenylene ether or PA have been widely used, and the performance and use value of the blended and modified varieties of polyphenylene ether far exceed their own performance and use value.
[0003] At present, although there are many different MPPO materials, they still cannot meet the needs of different fields. People have higher and higher requirements for product performance, and require products with good overall performance. For example, LED displays require materials with high light reflectivity, good It has the characteristics of high temperature deformation resistance, high ink adhesion, good dimensional stability and good flame retardancy, but the existing materials are not suitable, and the performance of the material needs to be further improved to meet the requirements of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The composition components of this embodiment are: 40 kg of polyphenylene ether, 25 kg of polystyrene resin, 3 kg of SBS / SEBS, 5 kg of flame retardant tris(2,4-dibromophenyl) phosphate, rutile TiO 2 10 kg, 0.1 kg of lubricant calcium stearate, 0.2 kg of antioxidant 1010.

[0024] Among them, the viscosity of polyphenylene ether resin is 0.5 dl / g, produced by Asahi Kasei Co., Ltd. of Japan; the MFR of polystyrene resin (HIPS) is 3g / 10min, produced by BASF Company; the flame retardant tris(2,4-dibromophenyl ) Phosphate ester is produced by Great Lake Company of the United States, the antioxidant is produced by Ciba Company of Switzerland, and the lubricant is produced by ICI Company.

[0025] The above-mentioned components are mixed evenly, and then extruded and granulated with a twin-screw extruder, and the processing temperature is: 280° C. (plasticizing section).

Embodiment 2

[0027] The composition components of this embodiment are: 60 kg of polyphenylene ether resin, 30 kg of polystyrene resin, 4 kg of SBS-MAH (grafting rate 5%), 1,3,5-trimethyl-2,4 , 0.3 kg of 6-tris(3,5-di-tert-butyl-4-hydroxybenzyl) benzene (referred to as antioxidant 330), 0.1 kg of lubricant fatty acid, 6 kg of halogenated phosphate flame retardant, anatase type TiO 2 15 kg.

[0028] Among them, the viscosity of polyphenylene ether resin is 0.35Pa·S, which is produced by American General Company; the MFR of polystyrene resin is 5g / 10min, produced by Beijing Yanhua Company; the halogenated phosphate is tris(2,4-dibromobenzene base) phosphate ester, produced by FMC Corporation of the United States, and the antioxidant is Cytec Corporation of the United States.

[0029] The above-mentioned components are mixed evenly, and then extruded and granulated with a twin-screw extruder, and the processing temperature is: 260° C. (plasticizing section).

Embodiment 3

[0031] The composition components of this embodiment are: 50 kilograms of polyphenylene ether resin, 35 kilograms of polystyrene resin, 6 kilograms of SEBS-MAH (grafting rate 3%), three (2,4-di-tert-butylphenyl) Phosphite (referred to as antioxidant 168) 0.2 kg, lubricant zinc stearate 0.3 kg, rutile TiO 2 25 kg, phosphorus oxide flame retardant 10 kg.

[0032] Among them, the viscosity of polyphenylene ether resin is 0.6Pa·S, produced by Mitsubishi Corporation of Japan; the MFR of polystyrene resin is 8g / 10min; the phosphorus oxide flame retardant is phenyl bis(carboxyphenyl) phosphorus oxide.

[0033] The above-mentioned components are mixed evenly, and then extruded and granulated with a twin-screw extruder, and the processing temperature is: 280° C. (plasticizing section).

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Abstract

The invention provides a polyphenyl ether compound of LED display unit, which contains 25-60 accounts of polyphenyl ether, 23-35 accounts of polystyrene resin, 3-6 accounts of styrene-butadiene copolymer or relative maleic anhydride grafts, 5-10 accounts of phosphorus-containing organic fire retardant, 10-25 accounts of inorganic oxide, 0.1-0.3 accounts of lubricant and 0.2-0.4 accounts of anti-oxidant. The product is characterized in high light reflectance, high temperature deformation resistance, good ink adhesion, good light resistance, and halogen-free flame retardant, which can be used to produce electric appliance elements as LED display unit.

Description

technical field [0001] The invention relates to a polyphenylene ether composition and its application, belonging to the field of polymer alloys. Background technique [0002] Polyphenylene ether (PPO) has excellent mechanical properties and electrical properties, but its high melt viscosity and poor fluidity make it difficult to process and shape, so it is generally used in various modified varieties, such as PPO and PS, PP Polyphenylene ether alloys such as polyphenylene ether or PA have been widely used, and the performance and use value of the blended modified polyphenylene ether far exceed its own performance and use value. [0003] At present, although there are many different MPPO materials, they still cannot meet the needs of different fields. People have higher and higher requirements for product performance, and require products with good overall performance. For example, LED displays require materials with high light reflectivity, good It has the characteristics o...

Claims

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Application Information

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IPC IPC(8): C08L71/12C08K5/524C08L25/04C08L51/00C08K5/36
Inventor 吴全德
Owner 广东瑞能新材料有限公司
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