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 larg

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0046] Example 1:

[0047] First, take the weight of the polycarbonate light diffusion masterbatch: 94.8% of bisphenol A polycarbonate resin, 5% of spherical methyl silicone resin powder as diffuser, 0.2% of 2921 from Ciba company as antioxidant, processing Made into polycarbonate resin light diffusion masterbatch.

[0048] According to the formula weight percentage, 92.9% of bisphenol A polycarbonate resin, 6% of polycarbonate resin light diffusion masterbatch, and ultraviolet absorber [2-(2H-benzotriazol-2-yl)-4, 6-Bis(1-methyl-1-phenylethyl)phenol] 0.3%; yttrium oxide activated by europium as a light guide 0.3%; antioxidant is Ciba 2921, 0.2%; mold release agent is polysilicon Oxyane 0.3%.

Example Embodiment

[0049] Example 2:

[0050] First, take the weight of the polycarbonate light diffusion masterbatch: 94.8% of bisphenol A polycarbonate resin, 25000-27000 molecular weight, 5% cross-linked methyl methacrylate beads, 50-60 particle size as diffuser Micron, 0.2% antioxidant, processed into polycarbonate resin light diffusion masterbatch. Antioxidant: The main antioxidant and auxiliary antioxidant are compounded at a weight ratio of 1:2. The main antioxidant is [β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid Stearyl alcohol ester], the auxiliary antioxidant is [tris(2,4-di-tert-butylphenyl) phosphite], the added content is 15%-20% by weight of the above-mentioned compounded antioxidant to suppress acid The acid inhibitor is SP136 of Ciba Company.

[0051] Then according to the formula weight percentage, 88.9% of bisphenol A polycarbonate resin; 10% of polycarbonate resin light diffusion masterbatch; UV absorber of Ciba 234 0.3%; light guide agent of strontium aluminate 0.3%; Th...

Example Embodiment

[0052] Example 3:

[0053] First, take 94.8 parts of bisphenol A polycarbonate resin with a molecular weight of 25000-27000. The light scattering agent is a polymer-coated calcium carbonate microsphere with a particle size of 0.5-400 microns. The antioxidant is Ciba's 2921 and 0.2 Parts, processed into polycarbonate resin light diffusion masterbatch.

[0054] According to the formula weight percentage, the polycarbonate resin is 78.9%; the polycarbonate resin light diffusion masterbatch is 20%; the ultraviolet absorber 2-(2H-benzotriazol-2-yl)-4,6-bis(1 -Methyl-1-phenylethyl)phenol Ciba 2340.3%; light guide agent europium activated yttrium oxide 0.3%; antioxidant is Ciba 2921 company 0.2%; mold 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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