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Fluorinated tin-based glass frit and method for manufacturing same

A tin fluoride-based, manufacturing method technology, applied in the field of tin fluoride-based glass frit, can solve the problems of reduced ratio, reduced water resistance, reduced transparency, coloring, etc., and achieves excellent sealing processability, excellent water resistance, and reliable The effect of manufacture

Inactive Publication Date: 2018-08-31
YEJ GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, generally speaking, the previous SnO-SnF 2 -P 2 o 5 The glass frit of the system has the following problems: if the SnF is increased for low melting 2 ,P 2 o 5 If the ratio is higher, the water resistance will be lowered. Therefore, for example, when an object containing functional elements that hate moisture inside, such as an organic EL display, is used as a sealing object, in order to ensure water resistance, the ratio of SnO has to be increased. 2 and P 2 o 5 The ratio of the ratio is relatively small, so it is necessary to set the firing temperature to 250°C or higher. In addition, when the fired product is a thin film of about several μm, it is colorless and transparent, but when it becomes a thick film of 100 μm or more, the transparency will decrease. , coloring

Method used

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  • Fluorinated tin-based glass frit and method for manufacturing same
  • Fluorinated tin-based glass frit and method for manufacturing same
  • Fluorinated tin-based glass frit and method for manufacturing same

Examples

Experimental program
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Effect test

manufacture example 1～21

[0054] will be made from SnF that will be used as a glass raw material 2 , SnO, P 2 o 5 (using ammonium hydrogen phosphate), SnO 2 、In 2 o 3 , B 2 o 3 , SiO 2The powders are mixed at the ratios (mol %) described in Tables 1 and 2 described later, and are added and mixed at the ratios (weight %) described in Tables 1 and 2 to these glass raw material powders as aromatic 10 g of terephthalic acid powders of carboxylic acids were stored in an alumina crucible with a capacity of 50 cc, heated in a muffle furnace at 380°C to 500°C for 40 minutes to melt, and then The melt is flowed into an alumina boat and recovered, and a glass bar with a length of 4 mm in length and width and a length of 11 mm is cut out from the cooled glass bar, and a particle size of 100 μm is produced from the remaining part by crushing and classifying in an automatic mortar frit below.

[0055] Glass transition point [Tg], softening point [Tf], coefficient of thermal expansion [CTE], color tone, tra...

manufacture example 22～32

[0078] To the glass raw material powder of Production Example 2 above, each additive described in Table 3 except terephthalic acid was added and mixed at the ratio (weight %) described in Table 3 described below. 10 g of the above-mentioned production examples 1 to 21 were carried out in the same manner as above-mentioned production examples 1 to 21, which were heated and melted and recovered, and the above-mentioned same glass rod and glass frit were produced from the cooled glass rod. Then, using each of the above-mentioned glass frits and glass rods, the glass transition point [Tg], softening point [Tf], thermal expansion coefficient [CTE], color tone, light transmittance, and water resistance were evaluated in the same manner as in Production Examples 1 to 21. research. The results are shown in Table 3 below. In Manufacture Examples 29 to 32, since the collected glass rods contained carbides and became cloudy, they were judged to be poor in quality, and the measurement of...

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Abstract

Provided is a super low melting SnO-SnF2-P2O5-based glass frit for which the firing temperature can be set to 200 DEG C or less and which has high water resistance and transparency. The fluorinated tin-based glass frit includes, in mol%, 30 to 70% of SnF2, 10 to 30% of P2O5, 10 to 40% of SnO, 0.1 to 10% of SnO2, 0 to 5% of In2O3, 0 to 5% of B2O3, and 0 to 5% of SiO2, and has a glass transition point of 160 DEG C or lower, a softening point of 180 DEG C or lower, and a maximum particle size of 100 [mu]m or less. The fluorinated tin-based glass frit has a visible light transmission rate of 80% or more at 200 DEG C and a thickness of 0.6 mm of a fired product thereof, and a rate of volume reduction of the fired product due to soaking in hot water at 85 DEG C for 24 hours is 2 weight% or less.

Description

technical field [0001] The present invention relates to a tin fluoride-based glass frit suitable as a sealing material and coating material for various display panels, solar cell panels, various electronic components, optical components, and the like, and a method for producing the same. Background technique [0002] As glass materials for sealing, glass frits with various compositions have been used in the past, but in recent years, in order to reduce the environmental burden, lead components are not included, and in order to suppress thermal adverse effects on the object to be sealed, its built-in components, etc. Low-melting glass frits that set the firing temperature lower are considered useful. As such a low-melting lead-free glass, a representative one is tin phosphate glass (for example, patent documents 1 and 2), and it has also been proposed to use SnO and P in its main components. 2 o 5 and then add B 2 o 3 (Patent Document 3), SiO 2 (Patent Document 4), ZnO (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/16C03C8/08
CPCC03C3/062C03C3/247C03C8/08C03C8/14C03C8/24C03C3/16
Inventor 甲原好浩高尾良成李昇雨
Owner YEJ GLASS CO LTD
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