Leadless low melting point phosphate glass

A technology of phosphate glass and low-melting glass, which is applied in the field of low-melting glass of ZnO-Sb2O3-P2O5 system, can solve the problem that the corrosion resistance of phosphate glass cannot meet the sealing requirements, and achieve the effect of improving chemical stability

Inactive Publication Date: 2011-10-12
金招娣
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The corrosion resistance of this phosphate glass is not up to conventional sealing requirements

Method used

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  • Leadless low melting point phosphate glass
  • Leadless low melting point phosphate glass
  • Leadless low melting point phosphate glass

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Embodiment Construction

[0028] The technical solution of the present invention is specifically described below through examples, and the content of the present invention is not subject to any restriction by the following examples.

[0029] The present invention melts glass samples by means of a high-temperature electric furnace in a laboratory, and the raw materials used are analytically pure chemical reagents, such as introducing P 2 o 5 Ammonium dihydrogen phosphate or phosphorus pentoxide or phosphoric acid, zinc oxide introduced into ZnO, introduced into Sb 2 o 3 antimony trioxide, carbonates of alkali metal oxides and alkaline earth metal oxides, manganese monoxide of MnO, MnO 2 manganese dioxide, introducing SiO 2 of silica, the introduction of Al 2 o 3 of aluminum hydroxide, introducing B 2 o 3 of boric acid etc. The batch materials of each component were put into a platinum crucible and melted in a high-temperature electric furnace to form a glass sample. Pour the melted uniform glas...

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Abstract

The invention discloses leadless ZnO-Sb2O3-P2O5 system low melting point glass, which mainly comprises the following components in percentage by mass: 30 to 60 percent of P2O5, 10 to 30 percent of ZnO, 5 to 30 percent of Sb2O3, 2 to 15 percent of Li2O, Na2O and K2O, 5 to 20 percent of MgO, CaO, SrO and BaO, and 1 to 10 percent of MnO and MnO2. The glass also comprises the following components in percentage by mass: 0 to 5 percent of SiO2, 0 to 10 percent of B2O3, and 0 to 15 percent of Al2O3. The working temperature of the phosphate glass is not more than 500 DEG C, the chemical stability is high, and the swelling coefficient is moderate, so the phosphate glass can be widely applied in the fields of middle and low temperature sealing of electronic products, manufacturing of high-temperature resistant paints, inflaming retarding when filled with a polymer material, and the like.

Description

(1) Technical field [0001] The invention relates to a lead-free low-melting phosphate glass, in particular to a ZnO-Sb glass with excellent chemical stability and a working temperature not exceeding 500°C 2 o 3 -P 2 o 5 The low-melting point glass of the system can be used for sealing between glass, ceramics, metals and other materials, and can also be used for the preparation of high-temperature resistant coatings, and can be used for flame retardancy of polymer materials. (2) Background technology [0002] Low-melting point glass is a kind of special-purpose glass with low working temperature. It is widely used in the electronics industry for sealing and coating between metal, glass, ceramics and other materials. It can give the product sufficient connection without compromising the performance of the product. strength and seal airtightness. Typical applications of low-melting point glass include the sealing of screen funnel glass for picture tubes, the sealing of flat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/16
Inventor 金招娣张兵
Owner 金招娣
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