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Light-diffusing non-ombustible composite member

A composite component, light diffusivity technology, applied in optical elements, optics, light guides, etc., can solve the problems of low incombustibility, easy cracking, insufficient incombustibility of light diffusing sheets, etc. Effect

Inactive Publication Date: 2013-08-07
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are disadvantages in the member formed by coating or impregnating a glass fiber sheet with a common inorganic coating agent: when the binder contains an organic component, there is a problem of low incombustibility, and when the binder is an inorganic component , low flexibility, prone to cracks
However, none of these light-diffusing sheets has sufficient incombustibility and low flexibility.

Method used

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  • Light-diffusing non-ombustible composite member
  • Light-diffusing non-ombustible composite member
  • Light-diffusing non-ombustible composite member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099]Add 15 g of a colloidal silica solution (trade name: SNOWTEX OS, manufactured by NISSAN CHEMICAL INDUSTRIES, LTD., solid content concentration 20 nm) with an average particle diameter of 8-11 nm in a container equipped with a stirrer, a reflux condenser, and a nitrogen gas introduction pipe. %), 15g 2-propanol, 5g 2-methoxyethanol. Add concentrated nitric acid to adjust the acidity (pH) of the liquid to the range of 2-4. Then, after raising the temperature to 60° C., 35 g of a silsesquioxane compound (trade name: X-40-9225, Shin-Etsu Chemical Co. Co., Ltd., 24% methoxyl group) dissolved in 35 g of 2-propanol to react the silsesquioxane compound and the surface of colloidal silica particles. After heating and stirring at 100° C. for 1 hour, it was cooled to room temperature (25° C.), and the solvent was distilled off and concentrated under reduced pressure. To this solution, 0.05 g of a catalyst (trade name "CAT-AC", manufactured by Shin-Etsu Chemical Co., Ltd.) was add...

Embodiment 2

[0102] A silicon coating agent (a solvent-free inorganic paint based on organopolysiloxane, trade name "CERATON NP", manufactured by Suzuki Industry, Co Ltd.) is impregnated into a glass cloth (trade name "E10T-4W" , thickness 100 μm, manufactured by UNITIKA CO., LTD.), and then dried at 130° C. for 5 minutes with a hot air circulation dryer to obtain a light-diffusing non-combustible composite member (glass fiber sheet-silicone resin composite). The obtained light-diffusing non-combustible composite member had a thickness of 190 μm.

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Abstract

There is provided a light diffusing flame-resistant composite member which has both flame resistance and flexibility and has excellent light diffusibility. The light diffusing flame-resistant composite member of the present invention includes a glass fiber sheet and a condensation-reactive silicone resin, wherein at least one surface of the glass fiber sheet is coated with the condensation-reactive silicone resin, or the glass fiber sheet is impregnated with the condensation-reactive silicone resin, and wherein the composite member has a total light transmittance of 60% or more and a haze value of 80% or more. The condensation-reactive silicone resin may be an inorganic oxide particle-containing condensation-reactive silicone resin comprising a crosslinking structure in which inorganic oxide particles dispersed in a polysiloxane resin having a condensation-reactive group is crosslinked with the polysiloxane resin by chemical bonds.

Description

technical field [0001] The present invention relates to a light-diffusing non-combustible composite member, and more specifically, to a light-diffusing non-combustible composite member formed of a glass fiber sheet and a condensation-reactive silicone resin. Background technique [0002] Conventionally, a member obtained by applying an inorganic coating agent to a glass fiber sheet is known as a light diffusing member that uniformly diffuses light emitted from a light source for illumination. However, there are disadvantages in the member formed by coating or impregnating a glass fiber sheet with a common inorganic coating agent: when the binder contains an organic component, there is a problem of low incombustibility, and when the binder is an inorganic component , low flexibility and prone to cracks. [0003] Patent Document 1 discloses a glass fiber sheet for light diffusion, in which a resin covering layer made of a fluorine-containing resin is formed on at least one si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/08C08K7/14C08L83/04G02B5/02C08J5/04
CPCF21V11/02G02B1/10C08J2383/04G02B5/0236G02B6/0065C08J5/043G02B1/105G02B6/0025G02B1/00C08J5/10C08J5/24G02B5/0278C09D183/04C08G77/045G02B1/14C08J5/244C08J5/249C08K3/36B32B17/04B32B27/04F21V5/00
Inventor 土井浩平长崎国夫杉野裕介樋田贵文仲山雄介平野敬祐
Owner NITTO DENKO CORP
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