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Lead-free glass material and preparation method thereof

A technology of lead-free glass and glass materials, which is applied in the field of lead-free glass materials and its preparation, can solve the problems of harmfulness to humans and organisms, failure of electrode patterns to meet precision requirements, non-elastic deformation of screens, etc., and achieve easy realization, Easy to promote and use, the effect of simple steps

Active Publication Date: 2013-01-16
GUANGDONG FENGHUA ADVANCED TECH HLDG
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Problems solved by technology

However, the disadvantage of this process is that it cannot form high-precision electrode patterns, and with the increase of printing times, the screen is prone to inelastic deformation, so that the electrode patterns cannot meet the precision requirements.
However, due to the completion of sintering at low temperature, there is a problem of low conductivity compared with the conductor on the ceramic substrate fired at a higher temperature (greater than 800 ° C); Causes environmental pollution and is harmful to humans and organisms

Method used

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  • Lead-free glass material and preparation method thereof
  • Lead-free glass material and preparation method thereof

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preparation example Construction

[0030] In addition, if figure 1 As shown, this embodiment also provides a method for preparing a lead-free glass material, including the following steps:

[0031] Step S110, weighing each raw material component according to the following weight percentage: Bi 2 o 3 : 20~80%, SiO 2 : 0~40%, P 2 o 5 : 0.1~30%, B 2 o 3 : 0~30%, Al 2 o 3 : 0~20%, ZnO: 0~20%, MgO: 0~10%, CaO: 0~10%, BaO: 0~30%, Na 2 O: 0~15%, K 2 O: 0~15%, ZrO 2 : 0~15% and TiO 2 : 0~15%, mixed to get the mixture.

[0032] In step S120, the mixture is heated and melted at 1000-1400° C. to obtain molten glass.

[0033] Step S130, quenching the molten glass to obtain granular glass.

[0034] In this embodiment, the quenching treatment is water quenching with deionized water.

[0035] In step S140, the granular glass is ball-milled and sieved to obtain a glass material.

[0036] In this embodiment, the molecular sieve used in the sieving process has a mesh size of 200 mesh.

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Abstract

The invention relates to lead-free glass material and a preparation method thereof. The lead-free glass material comprises, by weight percent, 20-80% of Bi2O3, 0%-40% of SiO2, 0.1-30% of P2O5, 0-30% of B2O3, 0-20% of Al2O3, 0-20% of ZnO, 0-10% of MgO, 0-10% of CaO, 0-30% of BaO, 0-15% of Na2O, 0-15% of K2O, 0-15% of ZrO2, and 0-15% of TiO2. The lead-free glass material softens at 500-600 DEG C, is 50-95*10-7 / DEG C in thermal expansion coefficient in the range of 25-300 DEG C, contains no lead, is friendly to environment and meets the requirement for environment protection. The lead-free glass material low in softening temperature and low in thermal expansion coefficient can replace traditional lead-free binders in application to addressing electrode slurry of plasma display panels.

Description

technical field [0001] The invention relates to the field of plasma display panels, in particular to a lead-free glass material and a preparation method thereof. Background technique [0002] With the maturity of flat panel display technology, large size, high definition and low power consumption are the development direction of flat panel display, especially plasma flat panel display has the characteristics of high brightness, high contrast, low cost and easy large size. Gradually become the trend of large-size flat-panel displays. A plasma display panel consists of a front substrate and a rear substrate. Wherein, the front substrate includes a protection layer, a front dielectric layer and bus electrodes; the rear substrate includes barrier ribs, phosphor powder, a rear dielectric layer and address electrodes. The barrier, the front dielectric layer, the rear dielectric layer, etc. form a tiny insulating discharge chamber, and the phosphor powder coated in the discharge ...

Claims

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Application Information

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IPC IPC(8): C03C3/062C03C3/064C03C3/066C03C3/097
Inventor 曹秀华陈积世仝晓玲魏艳彪熊康
Owner GUANGDONG FENGHUA ADVANCED TECH HLDG
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