Light-diffusion environment-friendly and inflaming retarding polycarbonate based composition for LED (Light-Emitting Diode) illumination and preparation method thereof

A flame retardant polycarbonate and LED lighting technology, applied in the field of materials, can solve the problems of reducing the impact strength of aromatic polycarbonate, reducing the light transmittance of aromatic polycarbonate, and yellowing of aromatic polycarbonate, etc. Achieve the effect of improving yellowing phenomenon, excellent mechanical properties and processing properties, and avoiding oxidative changes

Active Publication Date: 2012-10-17
SINOPLAST NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of brominated flame retardants is gradually restricted because of their environmental pollution and long-term use is harmful to the human body, and they will reduce the impact strength of aromatic polycarbonate; phosphorus-based flame retardants are generally It is 10-30 parts, and most of them have relatively low decomposition temperature, which is easy to corrode the screw, reduce the impact strength of aromatic polycarbonate, and easily cause yellowing of aromatic polycarbonate. These two types of flame retardants will greatly reduce the aromatic polycarbonate. Light transmittance of polycarbonate, improve haze

Method used

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  • Light-diffusion environment-friendly and inflaming retarding polycarbonate based composition for LED (Light-Emitting Diode) illumination and preparation method thereof
  • Light-diffusion environment-friendly and inflaming retarding polycarbonate based composition for LED (Light-Emitting Diode) illumination and preparation method thereof
  • Light-diffusion environment-friendly and inflaming retarding polycarbonate based composition for LED (Light-Emitting Diode) illumination and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Prepare the premix with the following raw materials in parts by weight: 70 parts of bisphenol A aromatic polycarbonate A, 30 parts of bisphenol A aromatic polycarbonate B, 0.25 parts of bead-shaped cross-linked acrylate light diffusing agent, bead-shaped cross-linked acrylate 0.08 parts of organic silicon light diffusing agent, 0.12 parts of potassium benzenesulfonylbenzenesulfonate, 0.03 parts of n-octadecyl propionate, phosphorous acid 0.06 part of tris(2,4-di-tert-butylphenyl) ester, 0.02 part of 3,4-dibutyl-5-(2,4-dimethylphenyl)benzofuran-2(3H)-one ;

[0064] The mixed premixed material is placed in a parallel twin-screw extruder for melt extrusion and granulation. The processing technology is: the temperature of the first zone of the parallel twin-screw extruder is 195°C, the temperature of the second zone is 255°C, the temperature of the third zone is 275°C, the temperature of the fourth zone is 280°C, the temperature of the fifth zone is 280°C, the temperature ...

Embodiment 2

[0066] Prepare the premix with the following raw materials in parts by weight: 70 parts of bisphenol A aromatic polycarbonate A, 30 parts of bisphenol A aromatic polycarbonate B, 0.4 part of bead-shaped cross-linked acrylate light diffusing agent, bead-shaped cross-linked 0.08 parts of organic silicon light diffusing agent, 0.12 parts of potassium benzenesulfonylbenzenesulfonate, 0.03 parts of n-octadecyl propionate, phosphorous acid 0.06 part of tris(2,4-di-tert-butylphenyl) ester, 0.02 part of 3,4-dibutyl-5-(2,4-dimethylphenyl)benzofuran-2(3H)-one ;

[0067] The mixed premixed material is placed in a parallel twin-screw extruder for melt extrusion and granulation. The processing technology is: the temperature of the first zone of the parallel twin-screw extruder is 195°C, the temperature of the second zone is 255°C, the temperature of the third zone is 275°C, the temperature of the fourth zone is 280°C, the temperature of the fifth zone is 280°C, the temperature of the sixt...

Embodiment 3

[0069] Prepare the premix with the following raw materials in parts by weight: 70 parts of bisphenol A aromatic polycarbonate A, 30 parts of bisphenol A aromatic polycarbonate B, 0.25 parts of bead-shaped cross-linked acrylate light diffusing agent, bead-shaped cross-linked acrylate 0.15 parts of organic silicon light diffusing agent, 0.12 parts of potassium benzenesulfonylbenzenesulfonate, 0.03 parts of n-octadecyl propionate, phosphorous acid 0.06 part of tris(2,4-di-tert-butylphenyl) ester, 0.02 part of 3,4-dibutyl-5-(2,4-dimethylphenyl)benzofuran-2(3H)-one ;

[0070] The mixed premixed material is placed in a parallel twin-screw extruder for melt extrusion and granulation. The processing technology is: the temperature of the first zone of the parallel twin-screw extruder is 195°C, the temperature of the second zone is 255°C, the temperature of the third zone is 275°C, the temperature of the fourth zone is 280°C, the temperature of the fifth zone is 280°C, the temperature ...

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PUM

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Abstract

The invention discloses a light-diffusion environment-friendly and inflaming retarding polycarbonate based composition for LED (Light-Emitting Diode) illumination and a preparation method thereof. The composition is prepared from the following raw materials in parts by weight of: 50-90 parts of diphenol A aromatic polycarbonate A, 1-40 parts of diphenol A aromatic polycarbonate B, 0.005-2 parts of light dispersant A, 0.05-1 part of light dispersant B, 0.01-2 parts of fire retardant, 0-2 parts of antioxidant A, 0-2 parts of antioxidant B and 0-2 parts of antioxidant C. The composition disclosed by the invention has excellent mechanical property and machining performance, has higher light transmittance and haze, and has a good inflaming retarding effect.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a polycarbonate-based composition used for LED lighting, which has excellent optical properties, high flame retardancy, high toughness and environmental protection properties. Background technique [0002] In recent years, facing the global resource crisis, the LED industry has sprung up and has been widely used in lighting, display and other industries. Due to its advantages of energy saving, environmental protection, and long life, the application prospect of LED lighting is very broad. With the rapid development of LED lighting industry, the use of light diffusion materials for LED shells is increasing rapidly. This material can make light It can effectively scatter light and convert point and line light sources into line and surface light sources. Due to its excellent mechanical properties, heat resistance, weather resistance, high light transmittance and other advantage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K5/00C08K5/42C08K5/524C08K5/1535C08K5/134B29B9/06B29C47/60F21V5/08F21Y101/02F21Y115/10
Inventor 朱怀才王忠强陈列杨东方
Owner SINOPLAST NEW MATERIAL
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