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Light diffusion material

A light diffusion and light diffusion agent technology, which is applied in the field of light diffusion materials and modified polymer materials, can solve problems such as poor long-term thermal stability, and achieve good physical and mechanical properties, excellent aging resistance, and good thermal stability. Effect

Active Publication Date: 2014-04-09
余姚中国塑料城塑料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high flame-retardant transparent light-diffusing PC made by this invention has good light diffusivity and flame retardancy, but its long-term thermal stability is poor, and it cannot be used as an LED lampshade for a long time

Method used

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  • Light diffusion material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Polycarbonate resin (Taiwan Chimei 110U, melt index MFI is 10g / 10min) 100 parts, light diffusing agent (Japan Shin-Etsu KMP-590, Japan Nakabuchi MP-90 compounded at 3:1, particle size is 0.2-10μm) 2 parts, 1 part of light stabilizer (Cytec UV-5411), 2.1 parts of composite antioxidant (tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, tri [2.4-Di-tert-butylphenyl]phosphite, triethylene glycol bis[β-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate], 4,4 '-Thiobis(6-tert-butyl-3-methylphenol compounded according to 1.2:1.1:1:1), 5 parts of composite flame retardant (perfluorobutyl sulfonic acid, potassium benzocresol sulfonate , p-biphenylene tetraphenyl bisphosphate according to 3:1:1 compound), 0.2 parts of white oil, 0.1 parts of fluorescent whitening agent, 0.2 parts of toner, put them into a high-speed mixing container, and mix them at high and low speeds at room temperature. Mix for 3 to 5 minutes. After that, add the mixed materials in...

Embodiment 2

[0037] 100 parts of polycarbonate resin (Taiwan Chimei 110L, melt index MFI is 10g / 10min), 3 parts of light diffusing agent (Japan Shin-Etsu KMP-590, Japan Nakabuchi MP-90 according to 1:1 compounding, particle size is 0.2~ 10 μm), 0.2 parts of light stabilizer (Taiwan Yongguang Chemical EV72), 0.8 parts of composite antioxidant (tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, bis( 2,4-di-tert-butylphenol) pentaerythritol diphosphite, triethylene glycol bis[β-(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate], 4 , 4'-thiobis(6-tert-butyl-3-methylphenol compounded according to 1.2:1:1:1), 0.5 parts of composite flame retardant (perfluorobutyl sulfonic acid, benzocresol sulfonic acid Potassium acid potassium, p-biphenylene tetraphenyl bisphosphate according to 2.7:1:1 compound), 0.2 parts of white oil, 0.1 parts of fluorescent whitening agent, 0.2 parts of toner, processed according to the process given in Example 1 , extruded and granulated to o...

Embodiment 3

[0039] Polycarbonate resin (Bayer 2407, melt index MFI is 20g / 10min) 100 parts, light diffusing agent 4 parts (methyl methacrylate resin particles, particle size 0.2-10 μm), light stabilizer 2 parts (Cytec UV -5411), 0.3 parts of composite antioxidant (tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, tris[2.4-di-tert-butylphenyl] phosphorous acid Ester, triethylene glycol bis[β-(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate], 2,6-di-tert-butyl-4-methylphenol 1:1:1:1 compound), 3.1 parts of composite flame retardant (perfluorobutane sulfonic acid, potassium benzocresol sulfonate, p-biphenylene tetraphenyl bisphosphate according to 2:1:1 Compound), 0.2 part of white oil, 0.1 part of fluorescent whitening agent, 0.2 part of toner, process according to the process given in Example 1, extrude and granulate to obtain the light-diffusing material composite material involved in the present invention, and the properties are listed in the appended surf...

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Abstract

The invention belongs to the technical field of high molecular materials and particularly relates to a light diffusion technique. A light diffusion material is prepared by the step of with polycarbonate resin as a matrix material, matching a light diffusant, a composite antioxidant, a composite flame retardant and other auxiliary agents by virtue of a melt extrusion process. The light diffusion material at least comprises the following materials in parts by weight: 100 parts of polycarbonate resin, 2-10 parts of the light diffusant, 0.2-6 parts of light stabilizers, 0.3-9 parts of the composite antioxidant and 0.5-10 parts of the composite flame retardant. The light diffusion material has the advantages of good physical and mechanical properties, fire resistance, excellent ageing resistance, high light transmissivity and good light diffusion performance, thermal stability and manufacturability, and the failure time is remarkably prolonged, so that the service life is effectively prolonged; the light diffusion material is suitable for the machining forming of lamp products of lamp tubes and the like and particularly suitable for thin-wall abnormal-shaped lamp tubes of which the wall thickness are less than 3mm.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to the technology of modified polymer materials, in particular to the technology of light diffusion materials. Background technique [0002] LED is a point light source, which is easy to produce glare, which makes people feel uncomfortable. When it is used in outdoor landscapes and public places such as hotels, the problem of glare is not very prominent, but once it enters the home or office, glare becomes a big problem, and astigmatism Materials are currently the best solution to the glare problem. [0003] At present, the existing light-diffusing polycarbonate materials of Japan's Teijin Chemicals and Saudi Arabia's Innovation Foundation have high light transmittance and good light diffusion, but they do not have flame retardancy and aging resistance at the same time, and their comprehensive application performance is low. [0004] CN200910171931.7 discloses a light diffu...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L33/12C08L83/04C08L33/00C08L33/08C08K5/00C08K5/42C08K5/523C08K5/134C08K5/526C08K5/372C08K5/13
Inventor 何杰赵鋆冲刘苏芹王承刚佘进娟杨焕军赵红玉张友强洪王胜王强
Owner 余姚中国塑料城塑料研究院有限公司
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