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Special flame-retardant light diffuser grade polycarbonate composition for LED (light-emitting diode) and preparation method thereof

A technology of polycarbonate and composition, which is applied in the field of special flame-retardant and light-diffusion polycarbonate composition for LED, can solve the problems of low flame retardancy, poor weather resistance, and difficulty in meeting EU environmental protection standards, and achieves increased application range effect

Inactive Publication Date: 2013-04-03
大河宝利材料科技(苏州)有限公司
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Problems solved by technology

Patent CN102219989A discloses a flame-retardant light-diffusing polycarbonate resin composite material for LED lamps and its preparation method. Satisfies EU environmental protection standards; Patent CN101906244A discloses a PC-based flame-retardant light-diffusing PC composite material, but it is added with a light stabilizer, making its products poor weather resistance
US20090258170A1 discloses a PC-based light-diffusing composition, which achieves light-diffusing properties and flame retardancy, but its flame retardancy is low and only reaches V-1 level

Method used

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Embodiment Construction

[0022] The present invention will be further described through specific examples below, but the examples are only used to explain the present invention, not to limit the present invention.

[0023] The polycarbonate in the polycarbonate composition embodiment of the present invention preferably selects the aromatic polycarbonate of the trade mark PGPC1218 that Iran Petrochemical produces; The light diffusing agent preferably uses Korean Cologne organic silicon light diffusing agent KS-500, and the flame retardant is preferably The HES-FR sulfonate flame retardant produced by Arichem Company of the United States is selected. The flame retardant synergist is preferably FCA-107 organosilicon flame retardant synergist produced by Dow Corning Company. The light stabilizer is preferably benzotriazole. Such as 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenethyl)phenol, 2-(2'-hydroxy-5'-methylphenyl ) benzotriazole, etc., which are commercially available; heat stabilizers are prefer...

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Abstract

The invention relates to a special flame-retardant light diffuser grade polycarbonate composition for an LED (light-emitting diode), which comprises the following components in parts by weight: 100 parts of polycarbonate, 0.05-10 parts of light diffuser, 0.1-3 parts of heat stabilizer, 0.1-3 parts of light stabilizer and 5-30 parts of flame retardant. According to the technical scheme, the prepared polycarbonate composition achieves the effect of high-efficiency flame retardant; and the haze and light transmittance of the material are well balanced, thereby greatly widening the application range of the polycarbonate composition in the LED field. The product prepared from the special flame-retardant light diffuser grade polycarbonate composition for an LED has the excellent properties of high environment-friendly flame retardancy and balanced haze and light transmittance, and meets the requirements for use safety of the material under the condition of a severe environment.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to a flame-retardant light-diffusing grade polycarbonate composition specially used for LEDs. Background technique [0002] Compared with ordinary incandescent lamps, LED lamps can save 90% energy, and can be recycled and reused. In the near future, LED lamps will replace the existing ordinary lighting equipment and enter thousands of households. However, the LED light is strong, dazzling, and the light energy is high, which limits its application to a certain extent. [0003] Polycarbonate, referred to as PC, is colorless and transparent, has high light transmittance, and high mechanical strength. It has great advantages in the LED industry. Patent CN102219989A discloses a flame-retardant light-diffusing polycarbonate resin composite material for LED lamps and its preparation method. Satisfies EU environmental protection standards; patent CN101906244A disclo...

Claims

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Application Information

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IPC IPC(8): C08L69/00B29B9/06B29C47/92B29C48/92
CPCB29C48/40B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 管丽敏罗煜王族泽安小强
Owner 大河宝利材料科技(苏州)有限公司
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