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Environment-friendly glass frit and preparation method thereof

A glass paste, environmentally friendly technology, used in quartz/glass/glass enamel, non-adjustable metal resistors, resistors, etc., can solve problems such as high content and environmental pollution, and achieve good flatness and insulation performance. Effect

Inactive Publication Date: 2010-08-04
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional glass paste uses lead-containing glass powder, and the content is high, which is easy to pollute the environment during the sintering process, so that the products using this glass paste cannot meet people's requirements for environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1) Preparation of lead-free glass powder: by weight percentage, Bi 2 o 3 40%, B 2 o 3 20%, SiO 2 20%, ZnO 10%, Al 2 o 3 5%, TiO 2 5% mixed evenly, heat-preserved at 1200°C for 30 minutes and melted, cold cut the glass powder, ball milled for 48 hours, and filtered through a 400-mesh screen for later use;

[0037] 2) Preparation of organic carrier: by weight percentage, add 10% ethyl cellulose resin to 90% terpineol, heat to 75°C-95°C in a constant temperature water bath until completely dissolved, and filter through 250 mesh;

[0038] 3) Preparation of pigment mixture: by weight percentage, add 20% of inorganic pigments to 78% of the above-mentioned organic vehicle, add 2% of polyethylene wax, mix evenly in a planetary or other mixer, and then mix in three Manufactured by dispersing on a roller machine to below 10um;

[0039] 4) Preparation of glass paste: by weight percentage, the above-mentioned 55% lead-free glass powder, 20% organic vehicle, 20% pigment...

Embodiment 2

[0042] 1) Preparation of lead-free glass powder: by weight percentage, Bi 2 o 3 70%, B 2 o 3 10%, SiO 2 10%, ZnO 5%, Al 2 o 3 2%, TiO 2 After mixing 3% evenly, heat it at 1000°C for 30 minutes and melt it, then cold cut the glass powder, ball mill it for 48 hours, and filter it through a 400-mesh sieve for later use;

[0043]2) Preparation of organic vehicle: Calculated by weight percentage, add 30% ethyl cellulose resin to 70% ethyl carbitol, heat to 75°C-95°C in a constant temperature water bath until completely dissolved, 250 mesh filter;

[0044] 3) Preparation of the pigment mixture: by weight percentage, add 60% of the inorganic pigment to 35% of the above-mentioned organic vehicle, add 5% of polyethylene wax, mix evenly in a planetary or other mixer, and then mix in three Manufactured by dispersing on a roller machine to below 10um;

[0045] 4) Preparation of glass paste: by weight percentage, the above-mentioned 75% lead-free glass powder, 10% organic veh...

Embodiment 3

[0048] 1) Preparation of lead-free glass powder: by weight percentage, Bi 2 o 3 45%, B 2 o 3 20%, SiO 2 20%, ZnO 8%, Al 2 o 3 2%, TiO 2 After mixing 5% evenly, heat it at 1170°C for 30 minutes to melt, then cold cut the glass powder, ball mill it for 48 hours, and filter it through a 400-mesh sieve for later use;

[0049] 2) Preparation of organic vehicle: by weight percentage, add 20% ethyl cellulose resin to 80% ethyl carbitol acetate, heat to 75°C-95°C in a constant temperature water bath until completely dissolved, 250 mesh filter;

[0050] 3) Preparation of the pigment mixture: by weight percentage, add 40% of the inorganic pigment to 58% of the above-mentioned organic vehicle, add 2% of microcrystalline paraffin, mix evenly in a planetary or other mixer, and then mix in three Manufactured by dispersing on a roller machine to below 10um;

[0051] 4) Preparation of glass paste: Calculated by weight percentage, the above-mentioned 70% lead-free glass powder, 1...

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PUM

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Abstract

The invention discloses environment-friendly glass frit and a preparation method thereof. The glass frit comprises the following components in percentage by weight: 55-75% of lead-free glass powder, 10-20% of carriers, 5-20% of pigment mixed liquor, 2-10% of solvents, 1-5% of plasticizers and 0.5-2% of dispersing agents. In the invention, the insulativity, the acid resistance and the printability of the product can be adjusted by changing the addition ratio of the glass powder; the viscosity and the printability of the product can be adjusted by changing the addition ratio of the organic carriers; the plasticity, the leveling property and the printability of the product can be adjusted by changing the addition ratio of the plasticizers; and the pollution-free product with good flatness and insulating property is obtained under the condition of sintering at 530-600 DEG C.

Description

Technical field: [0001] The invention belongs to the technical field of electronic materials, and in particular relates to a method for preparing glass paste, in particular to a method for preparing paste for thick-film chip resistors by using lead-free glass powder, with or without adding inorganic pigments, It is uniformly dispersed in the organic carrier and plays the role of insulation protection. Background technique: [0002] Resistors are indispensable components for all kinds of electronic equipment. Against the background of the global economic crisis, resistor manufacturers are facing the double pressure of rising production costs and falling product prices. Fierce market competition is also continuously reducing the profit margins of manufacturers. [0003] Despite the severe challenges, manufacturers in the industry are still optimistic about the development prospects of the industry as the demand for resistors in consumer electronics, communications, automobiles...

Claims

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Application Information

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IPC IPC(8): H01B3/08H01B19/00C03C12/00C03C3/066H01C7/00
Inventor 陈春锦
Owner IRICO
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