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Colourless transparent glass possessing ultraviolet radiation preventing function

A UV-resistant and transparent glass technology, applied in the field of colorless and transparent glass, can solve the problems of high price of neodymium oxide and difficulty in mastering and controlling the addition amount

Inactive Publication Date: 2003-12-17
上海高雅玻璃有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the price of neodymium oxide is very high, and the amount of addition is difficult to master and control

Method used

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Embodiment Construction

[0008] Preferred embodiments of the present invention will be specifically described below.

[0009] The inventor determined the content of ceria and the selection and content of the decolorizing agent through many experiments. It is finally determined that cerium dioxide is used as a raw material for preventing ultraviolet radiation, and the content is controlled between 0.3 and 0.6 weight percent (Table 1 shows the relationship between the content of cerium dioxide and the ultraviolet absorption rate). The decolorizing agent is selected from erbium oxide, and the content is controlled between 0.02 and 0.07 weight percent. Table II shows some examples of parameters within the ranges and boundaries mentioned above. Three index values ​​were measured for the test samples. The glass thickness of each test sample was 10 mm. In this industry, if the transparency of the three index values ​​is above 85%, the dominant wavelength is in the range of 565-575nm, and the index purity ...

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Abstract

A colorless transparent glass with the function of shielding ultraviolet radiation features use of SiO2 as main raw material, CeO2 as ultraviolet shielding material (0.3-0.6 wt.%), and ErO as decoloring agent (0.02-0.07 wt.%). Its advantages are low cost and high radiation shielding power.

Description

technical field [0001] The invention relates to a colorless and transparent glass, in particular to a colorless and transparent glass with the function of preventing ultraviolet radiation. Background technique [0002] As far as the use of glass containers is concerned, it has been hoped that glass containers can not only shield ultraviolet rays to prevent the deterioration of the contents of the containers, but also clearly recognize the shape of the contents of the containers. That is to say, the glass container must be colorless and transparent, and must be able to prevent ultraviolet radiation. Under normal circumstances, the contents of glass containers will undergo deterioration, discoloration, and odor change under the radiation of ultraviolet rays, and ultraviolet rays with a wavelength of about 320nm are the main factors causing the above reasons. [0003] At present, there have been reports on glass suitable for this purpose in foreign relevant literature. Judgin...

Claims

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Application Information

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IPC IPC(8): C03C3/06C03C4/08
CPCC03C4/085C03C3/06C03C2201/3423C03C2201/3476
Inventor 莲沼一雄
Owner 上海高雅玻璃有限公司
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