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Method for preparing polaroid glass

A technology of polarizing glass and coated glass, which is applied in the field of preparation of special functional glass to achieve high-efficiency synthesis, obvious polarizing characteristics, and overcome the effect of small size

Inactive Publication Date: 2010-10-13
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, the above-mentioned preparation technology of polarizing glass can only obtain polarizing glass with a small size, so it can only be used in the field of optical communication due to its size limitation, and the production technology of large-sized polarizing glass needs further research to be solved.

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example 1

[0020] 1.1 Put 20mL of ethylene glycol into a beaker, put the beaker into an oil bath with a magnetic stirrer and raise the temperature to 155°C, then add 20 drops (about 1mL) of 0.005M HAuCl to the above-mentioned heated ethylene glycol 4 aqueous solution, the solution color changed from yellow to pink, which indicated the formation of gold nanoparticles. After constant temperature stirring for about 5 minutes, according to the mass of 0.2g AgNO 3 (First add 0.2g AgNO 3 Dispersed in 10mL of ethylene glycol) into the above oil bath, when the silver nitrate is added, the prepared PVP (dissolve 0.3-0.6g of PVP in 20ml of ethylene glycol) is added dropwise to the above oil within 15min in the bath. The product was taken out after 60 minutes of reaction, and continuous stirring and constant temperature at 155° C. were required during the entire reaction process. The reaction product is a yellow-gray suspension, and a small amount of metallic silver adheres to the inner wall of ...

example 2

[0026] 2.1 Weigh 0.6mmol PVP (polyvinylpyrrolidone K30) and dissolve it completely in 75mL DMF (N, N dimethylformamide) solution at room temperature. After the PVP is completely dissolved in the DMF solution, add 0.51g AgNO to the mixed solution 3 (Concentration: 0.04M), stirred rapidly for 10s, then transferred the mixed solution to a reaction kettle (volume 200mL, lined with polyvinylpyrrolidone polytetrafluoroethylene), and treated at 150°C in a closed oil bath for 12h. After the reaction was completed, the reaction kettle was taken out to allow it to cool down to room temperature naturally, and the sample was taken out and centrifuged several times at a speed of 3000 rpm to remove most of the organic matter in the solvent. Using absolute ethanol as a dispersant and detergent, an ethanol solution containing Ag nanowires is finally obtained.

[0027] 2.2 Preparation of titanium dioxide sol solution: firstly, according to (molar ratio) butyl titanate: absolute ethanol = 1: 10...

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Abstract

The invention relates to a method for preparing polaroid glass. The method comprises the following steps of: (1) synthesizing silver nanowires by a wet chemistry method; (2) dispersing the prepared silver nanowires into solution of titanium oxide sol; (3) immersing a glass plate into the solution of titanium oxide sol which contains the silver nanowires, performing surface coating on the glass plate by using a pulling method; and (4) performing heat treatment on the coated glass plate to obtain the polaroid glass. The method has the characteristics of suitability for preparing the large-size polaroid glass product, low operation temperature and simple process.

Description

technical field [0001] The invention relates to a preparation technology of special functional glass, in particular to a preparation method of polarized glass with polarizing properties for incident light waves. Background technique [0002] In today's information age, the optical fiber communication industry has been and is still developing at a high speed. The service of polarizing glass in the field of optical communication began in the 1980s, and now there are millions of optical isolators used in the preparation of optical communication devices. , and none failed. At the same time, due to its compact structure, stable performance, good chemical stability and good heat resistance, it has become the preferred material for the production of optical isolators, optical fiber polarizers, optical filters, optical switches and other optical fiber communication devices. [0003] As for large-size polarizing glass, the transmittance, extinction ratio, thermal stability, mechanic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/06
Inventor 赵修建冯晋阳茅海波戴超马晓
Owner WUHAN UNIV OF TECH