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Preparation method for high-transmittance diffuser plate

A diffuser plate and a technology for preparation steps, which are applied in optics, optical components, coatings, etc., can solve the problems of light energy loss and waste, low light transmittance, etc., and achieve improved light transmittance, enhanced solubility, and good stability Effect

Inactive Publication Date: 2018-12-21
FOSHAN TENGLI NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main technical problem to be solved by the present invention is that the light transmittance and light diffusivity (or haze) of the diffuser plate are a pair of contradictory technical indicators, and the higher light diffusivity is usually at the expense of the light transmittance. , the light transmittance of the light scattering material prepared by the traditional process is generally very low, and a large amount of light energy is lost and wasted. A preparation method for a high light transmittance diffuser plate is provided.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] Example Dissolve 10 g of zinc acetate dihydrate in a beaker containing 180 mL of isopropanol, place the beaker in a water bath, heat it to 70°C, add 30 mL of diethanolamine to the beaker, and use a magnetic stirrer at 300 r / min Keep stirring at the rotating speed for 30 minutes, continue to add 15g of aluminum nitrate nonahydrate and 10g of methyltrimethoxysilane to the beaker and keep stirring until the solid is completely dissolved to obtain a transparent homogeneous sol for use; add 100mL of dimethylformamide to the beaker, Transfer to a water bath with a magnetic stirrer, control the temperature of the water bath to 35℃, start the magnetic stirrer, stir at 500r / min, add 5g 4,4'-diaminodiphenyl ether to the beaker, stir for 10min, Then add 6g pyromellitic anhydride, 5g indium hydroxide, stir and react for 3h to obtain polyamic acid sol; the tin ion precursor material 2-ethylhexanoate stannous, diethanolamine and zinc ion precursor material zinc acetate Add it into a b...

example 2

[0026] Dissolve 11g of zinc acetate dihydrate in a beaker containing 190mL of isopropanol, place the beaker in a water bath, heat to 75°C, add 35mL of diethanolamine to the beaker, and use a magnetic stirrer to rotate at 320r / min Keep stirring for 32 minutes, continue to add 17g of aluminum nitrate nonahydrate and 12g of methyltrimethoxysilane to the beaker and keep stirring until the solid is completely dissolved to obtain a transparent homogeneous sol for use; add 110mL of dimethylformamide to the beaker and move the beaker into In a water bath with a magnetic stirrer, control the temperature of the water bath to 37℃, start the magnetic stirrer, stir at 520r / min, add 6g 4,4'-diaminodiphenyl ether to the beaker, stir for 12 minutes, and then 7g of pyromellitic anhydride, 5g of indium hydroxide were added, and the reaction was stirred for 3.5h to obtain polyamic acid sol; the tin ion precursor material 2-ethylhexanoate stannous, diethanolamine and zinc ion precursor material zin...

example 3

[0028] Dissolve 12g of zinc acetate dihydrate in a beaker containing 200mL of isopropanol, place the beaker in a water bath, heat to 80°C, add 40mL of diethanolamine to the beaker, and use a magnetic stirrer at 350r / min Incubate and stir for 35 minutes, continue to add 18g of aluminum nitrate nonahydrate and 15g of methyltrimethoxysilane to the beaker and keep stirring until the solid is completely dissolved to obtain a transparent homogeneous sol for use; add 120mL of dimethylformamide to the beaker and move the beaker into In a water bath with a magnetic stirrer, control the temperature of the water bath to 40℃, start the magnetic stirrer, stir at 550r / min, add 7g 4,4'-diaminodiphenyl ether to the beaker, stir for 15 minutes, and then Add 8g of pyromellitic anhydride, 6g of indium hydroxide, stir and react for 4h to obtain polyamic acid sol; add tin ion precursor material 2-ethylhexanoate stannous, diethanolamine and zinc ion precursor material zinc acetate In a beaker contai...

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Abstract

The invention discloses a preparation method for a high-transmittance diffuser plate and belongs to the technical field of diffuser plate preparation. In the invention, polyvinylpyrrolidone powder isdissolved in a light-transmitting solution and the nucleation rate thereof is increased during the process of generating stannic oxide grains by oxidizing stannous mono-sulphate; a transparent homogeneous sol in the invention contains zinc oxide and is doped with aluminum nitrate nonahydrate; band gap and exciton binding energy of zinc oxide are higher; a polyamide acid sol is prepared by taking 4,4'-diaminodiphenyl ether and pyromellitic dianhydride as raw materials; a hybrid membrane at molecular level is acquired under the cross-linking effect of the polyamide acid sol and the transparent adhesive solution through hydrogen bonds; superfine indium tin oxide powder is adopted for reducing an inductive dipole moment, reducing the diffusing in the diffuser plate and increasing the light diffusion rate; the compound of the superfine indium tin oxide powder and the transparent homogeneous sol can increase the stability of the adhesive solution, can narrow the size distribution of nano-particles in the hybrid membrane and can increase the light transmissivity of the diffuser plate; the high-transmittance diffuser plate has a wide application prospect.

Description

Technical field [0001] The invention discloses a method for preparing a high-light-transmitting diffuser plate, which belongs to the technical field of diffuser plate preparation. Background technique [0002] The diffusion plate is a physical phenomenon of refraction, reflection, and scattering that occurs when sound and light encounter two media with different refractive indexes through chemical or physical means. It is used in PMMA, PC, PS, PP and other bases. Inorganic or organic light diffusers are added to the material base, or the light is artificially adjusted through the array of micro-feature structures on the surface of the substrate, so that sound and light are refracted, reflected, and scattered in different directions, thereby changing the path of sound and light. , To achieve the full dispersion of incident sound and light to produce the effect of diffusion. [0003] According to the classification of the base material of the light diffuser, the light diffuser inclu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C09D179/08C09D179/02G02B5/02C08G73/10C08L69/00
CPCC08G73/1007C08G73/1071C08J7/0423C08J2369/00C08J2479/02C08J2479/08C08L2205/02C09D179/08G02B5/0268C08L79/02
Inventor 刘菊花邓博朱彩娣
Owner FOSHAN TENGLI NEW ENERGY TECH CO LTD
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