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High light-transmittance and high flame-retardant polycarbonate material and preparation method of polycarbonate material

A technology of polycarbonate and high light transmittance, which is applied in the direction of lighting and heating equipment, lighting devices, parts of lighting devices, etc. It can solve the problems of low flame retardant efficiency, inability to produce synergistic effects, and large amount of main flame retardants. problem, to achieve the effect of good flame retardant performance

Active Publication Date: 2012-10-03
GUANGDONG SILVER AGE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this reference document has the following disadvantages: 1. The consumption of the main flame retardant is relatively large, and the impact resistance of the polycarbonate material obtained is relatively poor, which can only reach the IZOD notched impact strength of 100-200, and it is easy to assemble the product. Fragmentation, in addition, it will cause the product to turn yellow easily in the later stage, and the product quality will decline; 2. The auxiliary flame retardant and the main flame retardant cannot synergize, the flame retardant efficiency is low, the impact resistance of the product is poor, and the transparency is reduced; 3. Must Using a light diffusing agent, the prepared product is white mist, and the light transmittance is low, only 66-85%, which cannot meet the high light requirements of outdoor lighting; 4. The prepared product has poor light transmittance and flame retardancy

Method used

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  • High light-transmittance and high flame-retardant polycarbonate material and preparation method of polycarbonate material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078]A kind of high light transmittance, high flame retardant polycarbonate material of the present embodiment, comprise the raw material of following composition and mass percentage: 99.5% of Bayer's 2805 bisphenol A type polycarbonate, 0.1% di Phenylsulfone sulfonate, 0.1% brominated carbonate oligomer, 0.1% tris(2,4-di-tert-butylphenyl) phosphite, 0.1% β-(3,5-di-tert-butyl n-octadecyl-4-hydroxyphenyl) propionate, 0.1% octadecanoic acid-2-(hydroxymethyl)-2-[[(1-oxoctadecyl)oxy] Methyl]-1,3-propanediyl ester.

[0079] Its preparation method is as follows: the first step: put the raw materials with the above-mentioned mass percentage ratio except bisphenol A polycarbonate into a high-speed mixer and stir evenly, the stirring speed is 100r / min, and the stirring time is 4min; the second step: Put the bisphenol A polycarbonate and the material mixed in the first step into a high-speed mixer for three-stage mixing. The stirring speed of the first stage is 20r / min, and the stirri...

Embodiment 2

[0082] A kind of high light transmittance, high flame retardant polycarbonate material of the present embodiment, comprise the raw material of following composition and mass percentage: the bisphenol A type polycarbonate of 1250Z of the Teijin Company of 99.1%, the bisphenol A polycarbonate of 0.1% Sulfone sulfonate, 0.3% brominated carbonate oligomer, 0.1% tris(2,4-di-tert-butylphenyl) phosphite, 0.1% β-(3,5-di-tert-butyl -4-Hydroxyphenyl)propanoic acid n-octadecyl ester, 0.2% octadecanoic acid-2-(hydroxymethyl)-2-[[(1-oxoctadecyl)oxy]methanoate base]-1,3-propanediyl ester and 0.1% of 2-hydroxy-4-n-octyloxybenzophenone.

[0083] Its preparation method is as follows: the first step: put the raw materials with the above-mentioned mass percentage ratio except bisphenol A polycarbonate into a high-speed mixer and stir evenly, the stirring speed is 140r / min, and the stirring time is 3min; the second step: Put the bisphenol A polycarbonate and the material mixed in the first step ...

Embodiment 3

[0085] A kind of high light transmittance, high flame retardant polycarbonate material of the present embodiment, comprise the raw material of following composition and mass percentage: the bisphenol A type polycarbonate of 1201-10 of Dow Company of 98.6%, 0.2% Diphenyl sulfone sulfonate, 0.7% brominated carbonate oligomer, 0.1% tris(2,4-di-tert-butylphenyl) phosphite, 0.1% β-(3,5-di tert-Butyl-4-hydroxyphenyl) propanoic acid n-octadecyl ester, 0.2% octadecanoic acid-2-(hydroxymethyl)-2-[[(1-oxoctadecyl)oxy base]methyl]-1,3-propanediyl ester and 0.1% of 2-hydroxy-4-n-octyloxybenzophenone.

[0086] Its preparation method is as follows: the first step: put the raw materials with the above mass percentage ratio except bisphenol A polycarbonate into a high-speed mixer and stir evenly, the stirring speed is 180r / min, and the stirring time is 3.5min; the second step : Put the bisphenol A polycarbonate and the material mixed in the first step into a high-speed mixer for three-stage ...

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Abstract

The invention relates to the technical field of polycarbonate material, particularly to high light-transmittance and high flame-retardant polycarbonate material. The polycarbonate material contains the following constituents and materials by weight: 94.8-99.5% of polycarbonate, 0.1-0.3% of fire retardant A, 0.1-3.5% of fire retardant B, 0.1-0.3% of antioxidant A, 0.1-0.3% of antioxidant B, 0.1-0.2% of a lubricating agent and 0-0.6% of light stabilizer, and the sum of the weight percentages of the constituents is 100%. The preparation method comprises the steps of putting the constituents except for the polycarbonate into a high-speed mixer to uniformly agitate, putting the polycarbonate and uniformly mixed material into the high-speed mixer to carry out three-segment agitation, and putting the material into a double-screw extruder to extrude and pelletize. The polycarbonate material disclosed by the invention has the advantages of high light transmittance and high fire resistance and the like, can meet the requirements of a lampshade for outdoor illumination, and is simple in process and beneficial for generalization and application.

Description

technical field [0001] The invention relates to the technical field of polycarbonate materials, in particular to a polycarbonate material with high light transmittance and high flame retardancy and a preparation method thereof. Background technique [0002] Light-emitting diodes (Light Emitting Diode, LED) are increasingly widely used in the fields of display, transportation, electrical appliances and lighting due to their small size, long life, rich color rendering and outstanding energy-saving and environmental protection characteristics. , one of the key technologies for cleaner production and sustainable development. [0003] Due to the light-emitting characteristics of its point light source, LEDs have disadvantages in the field of lighting, such as small lighting area and low lighting brightness, compared with conventional light sources. In order to make up for the lack of application of LED light sources in the field of lighting, it is necessary to use special materi...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08K5/42C08K5/526C08K5/134C08K5/103C08K5/132B29B9/06B29C47/92F21V3/04B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92B29C2948/92514B29C2948/92704B29C2948/92895B29C2948/92904
Inventor 邓虎傅轶李文波招启强谭颂斌
Owner GUANGDONG SILVER AGE SCI & TECH CO LTD
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