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High light-flux anti-glare polycarbonate and method for preparing same

A technology of polycarbonate and polycarbonate resin, which is applied in the field of new chemical materials and lighting engineering, can solve the problems of small luminous flux and large light loss, and achieve the effect of high luminous flux, low light loss and continuous light transmission

Inactive Publication Date: 2010-08-04
广州金园聚合物挤出成型科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the LED green light source is applied to the lighting field, higher requirements are put forward for the cover material. The above-mentioned traditional polycarbonate modified lamp cover with anti-glare has small luminous flux and large light loss, which can no longer meet the growing semiconductor lighting project. The light efficiency of semiconductor light-emitting diodes is one of the core technical issues that plague the field of semiconductor lighting all over the world.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] First weighed by polycarbonate light diffusion masterbatch weight: bisphenol A type polycarbonate resin 94.8%, astigmatism agent is spherical methyl silicone resin powder 5%, antioxidant is 2921 of Ciba company is 0.2%, processing Made of polycarbonate resin light diffusion masterbatch.

[0048] Then according to the formula weight percentage, bisphenol A type polycarbonate resin 92.9%, polycarbonate resin light diffusion masterbatch 6%, ultraviolet absorber [2-(2H-benzotriazole-2-yl)-4, 6-two (1-methyl-1-phenylethyl) phenol] 0.3%; light guide agent europium activated yttrium oxide 0.3%; antioxidant is 0.2% of 2921 of Ciba company; release agent is polysilicon Oxane 0.3%.

Embodiment 2

[0050] Firstly weighed according to the weight of polycarbonate light diffusion masterbatch: bisphenol A polycarbonate resin 94.8%, molecular weight 25000-27000, light scattering agent is 5% cross-linked methyl methacrylate beads, particle size is 50-60 Micron, 0.2% antioxidant, processed into polycarbonate resin light diffusion masterbatch. Antioxidant The main antioxidant and auxiliary antioxidant are compounded and used in a weight ratio of 1:2, and the main antioxidant is [β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid n- octadecyl alcohol ester], the auxiliary antioxidant is [tris(2,4-di-tert-butylphenyl) phosphite], and the added content is 15%-20% of the weight of the antioxidant after the compounding Agent, acid suppressant is Ciba's SP136.

[0051] According to formula weight percent again, bisphenol A type polycarbonate resin 88.9%; Polycarbonate resin light diffusion masterbatch 10%; Ultraviolet absorber is 234 0.3% of Ciba Company; Light guide agent is stront...

Embodiment 3

[0053] First get 94.8 parts of bisphenol A type polycarbonate resin, molecular weight 25000-27000, astigmatism agent is 5 parts of polymer-wrapped calcium carbonate microspheres, particle diameter is 0.5-400 micron, antioxidant is 2921 of Ciba company and is 0.2 Parts, processed into polycarbonate resin light diffusion masterbatch.

[0054] Then according to formula weight percent, polycarbonate resin 78.9%; Polycarbonate resin light diffusion masterbatch 20%; Ultraviolet absorber 2-(2H-benzotriazole-2-base)-4,6-two -Methyl-1-phenylethyl) phenol Ciba 2340.3%; light guide agent europium-activated yttrium oxide 0.3%; antioxidant is 0.2% of 2921 of Ciba Company; release agent pentaerythritol stearate 0.3%.

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Abstract

The invention discloses high light-flux anti-glare polycarbonate and a method for preparing the same. The method for preparing the high light-flux anti-glare polycarbonate comprises the following steps of preparing polycarbonate resin light diffusion master batch from 94.7-99.8 percent by weight of polycarbonate resin, 0.1-5 percent by weight of astigmatism agent and 0.1-0.3 percent by weight of antioxidant and weighting 30.6-92.9 percent by weight of polycarbonate resin, 6.5-66 percent by weight of polycarbonate resin light diffusion master batch, 0.1-0.5 percent by weight of light guiding agent, 0.3-0.6 percent by weight of ultraviolet absorbent, 0.1-0.3 percent by weight of antioxidant and 0.1-2 percent by weight of mould releasing agent. In the invention, the light ray is distributed two times or more to eliminate the blinding glare, and the light is transmitted continuously to the maximum extent. The anti-glare polycarbonate has low optical loss and high light flux, can meet the need of different level of various environment and application situations, can be used for producing the shell of the lighting lamp, is convenient to prepare with simple process and is suitable for industrial production.

Description

technical field [0001] The invention relates to a high luminous flux, anti-glare polycarbonate and a preparation method thereof, which is especially applied to key components requiring high luminous flux such as lighting fixture covers and display screens, and belongs to the technical fields of new chemical materials and lighting engineering. Background technique [0002] Polycarbonate is usually selected as the cover material of high-quality lighting fixtures. Its advantages are: the mechanical strength is the largest among polymer materials, and it is known as bulletproof rubber. Its high temperature resistance, flame retardancy, transparency, non-toxic And other comprehensive properties are unmatched by other polymer materials. Although polycarbonate lampshades have the above-mentioned advantages, with the continuous improvement of people's living standards, lighting fixtures with polycarbonate outer coverings with a light transmittance of about 90% are exposed. The dazzl...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L83/00C08L33/12C08K13/06C08K9/10C08K3/26C08K3/24C08K3/22C08J3/22B29B9/06F21V3/04
Inventor 邓辉舫牟莎丽
Owner 广州金园聚合物挤出成型科技有限公司
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