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Preparation method of antireflection film of glass tube

A glass tube and anti-reflection coating technology, which is applied in the field of preparation of glass tube anti-reflection coatings, can solve the problems of good scratch resistance, scratch resistance, and inconvenience in the production process, and achieve high surface hardness and coating penetration high rate effect

Inactive Publication Date: 2014-08-27
SHANDONG LINUO NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The above two methods have their own advantages and disadvantages. The dielectric film produced by the plasma spraying method has good transmittance, but it is not resistant to scratches. It is easy to scratch the film layer during the production process of solar heat collector tubes, which will cause great damage to the production process. The inconvenience; the dielectric film produced by the sol-gel method has better transmittance and good scratch resistance

Method used

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  • Preparation method of antireflection film of glass tube
  • Preparation method of antireflection film of glass tube
  • Preparation method of antireflection film of glass tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] S1, making a plasma sprayed film layer.

[0030] ①The glass tube is placed in the plasma spraying equipment;

[0031] ② After vacuuming the inside of the glass tube to 1Pa, the plasma spraying equipment will automatically feed the gasified mixed gas of hexamethyldisiloxane and oxygen into the glass tube. The volume ratio of hexamethyldisiloxane to oxygen is 1:10;

[0032] ③After the mixed gas pressure reaches 10Pa, the high-frequency power supply glow discharge equipment automatically moves laterally from one side of the glass tube to the other side and continues to glow discharge;

[0033] ④ After the glow discharge is completed, take the glass tube out of the equipment.

[0034] S2. Making a sol-gel film layer.

[0035] 1) The volume ratio of the silica sol of ethyl orthosilicate is as follows: ethyl orthosilicate: absolute ethanol: water: hydrochloric acid = 1:6:0.5:0.03, the preparation method of silica sol of ethyl orthosilicate is as follows : ① Mix ethyl ...

Embodiment 2

[0050] S1, making a plasma sprayed film layer.

[0051] ② The glass tube is placed in the plasma spraying equipment;

[0052] ② After vacuuming the inside of the glass tube to 3Pa, the plasma spraying equipment will automatically feed the gasified mixed gas of hexamethyldisiloxane and oxygen into the glass tube. The volume ratio of hexamethyldisiloxane to oxygen is 1:10;

[0053] ③ After the mixed gas pressure reaches 15Pa, the high-frequency power glow discharge device automatically moves laterally from one side of the glass tube to the other side and continues to glow discharge;

[0054] ④ After the glow discharge is completed, take the glass tube out of the equipment.

[0055] S2. Making a sol-gel film layer.

[0056]1) The volume ratio of the silica sol of ethyl orthosilicate is as follows: ethyl orthosilicate: absolute ethanol: water: hydrochloric acid = 1:8:0.7:0.05, the preparation method of silica sol of ethyl orthosilicate is as follows : ① mix ethyl orthosili...

Embodiment 3

[0071] S1, making a plasma sprayed film layer.

[0072] ①The glass tube is placed in the plasma spraying equipment;

[0073] ② After vacuuming the inside of the glass tube to 5Pa, the plasma spraying equipment will automatically feed the gasified mixed gas of hexamethyldisiloxane and oxygen into the glass tube. The volume ratio of hexamethyldisiloxane to oxygen is 1:10;

[0074] ③After the mixed gas pressure reaches 20Pa, the high-frequency power supply glow discharge equipment automatically moves laterally from one side of the glass tube to the other side and continues to glow discharge;

[0075] ④ After the glow discharge is completed, take the glass tube out of the equipment.

[0076] S2. Making a sol-gel film layer.

[0077] 1) The volume ratio of the silica sol of ethyl orthosilicate is as follows: ethyl orthosilicate: absolute ethanol: water: hydrochloric acid = 1: 10: 0.9: 0.1, the preparation method of silica sol of ethyl orthosilicate is as follows : ① mix eth...

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Abstract

The invention provides a preparation method of an antireflection film of a glass tube. The glass tube prepared by using the method is high in light transmittance and scratch resistance. The method comprises the following steps: forming a plasma-spraying film layer on the surface of the glass tube by virtue of a plasma chemical vapor deposition method by taking a gas containing hexamethyldisiloxane as a raw material; soaking the glass tube treated by the step S1 in a silica sol containing ethyl orthosilicate; forming a sol layer on the surface of the glass tube by virtue of a soaking and pulling method; forming a sol-gel film layer on the plasma-spraying film layer after sintering.

Description

[0001] A method for preparing an anti-reflection coating for a glass tube. technical field [0002] The invention relates to a method for preparing an anti-reflection film for a glass tube, and belongs to the technical field of solar thermal utilization. Background technique [0003] There are many methods for coating objects, such as physical vapor deposition (PVD), chemical vapor deposition (CVD), electrodeposition, and physical deposition. [0004] The plasma spraying method of the present invention belongs to the plasma enhanced chemical vapor deposition (PECVD) technology in the chemical vapor deposition (CVD). Plasma enhanced chemical vapor deposition (PECVD), also known as plasma chemical vapor deposition (PCVD), is a new technology that applies plasma formed by low-pressure gas discharge to chemical vapor deposition. [0005] The principle of PECVD: [0006] Using low-temperature plasma as an energy source, the sample is placed on the cathode of the glow discharge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/23
Inventor 张和成张改华毕玉鹤高福建
Owner SHANDONG LINUO NEW MATERIAL
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