Acid-resistant and antioxidant silver paste for automotive glass and method for preparing acid-resistant and antioxidant silver paste

A technology of automotive glass and silver oxide, applied in the direction of conductive coatings, coatings, etc., can solve the problems of poor acid resistance, easy discoloration of silver wires, and falling off of silver wires, so as to improve anti-oxidation performance, optimize color depth, and improve process performance Effect

Inactive Publication Date: 2016-07-13
SHANGHAI BAOYIN ELECTRONICS MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the silver pastes used in domestic auto glass factories are domestic silver pastes, and a small part of them are foreign products such as DuPont, Fluor, Murata, Dikang and Johnson Matthey. The main problems are as follows: the oxidation resistance of the silver paste is not good. Good, the silver wire is easy to change color, so the storage time of auto glass products cannot be too long; some silver pastes have good anti-oxidation performance, but poor acid resistance, resulting in part of the silver wire falling off, affecting the stability of auto glass products

Method used

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  • Acid-resistant and antioxidant silver paste for automotive glass and method for preparing acid-resistant and antioxidant silver paste
  • Acid-resistant and antioxidant silver paste for automotive glass and method for preparing acid-resistant and antioxidant silver paste
  • Acid-resistant and antioxidant silver paste for automotive glass and method for preparing acid-resistant and antioxidant silver paste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Prepare 100g of raw materials, prepare raw materials according to the following components and quality:

[0032]

[0033] The particle size of the spherical silver powder used is 2.8 μm, and the tap density is 3.8 g / ml; the particle size of the flake silver powder is 6 μm, and the tap density is 2.4 g / ml;

[0034] The composition and percentage of glass powder-L used are: Bi 2 o 3 65.B 2 o 3 18. ZnO9, SiO 2 4. Al 2 o 3 2. Na 2 O1, Fe 2 o 3 0.5, ZrO 2 0.5; the composition and percentage of glass powder-M used are: Bi 2 o 3 64. SiO 2 26. B 2 o 3 6. Sb 2 o 3 2. Na 2 O0.5, Al 2 o 3 0.5, ZnO0.35, CuO0.25, CaO0.25, Fe 2 o 3 0.10, ZrO 2 0.05;

[0035] The organic additives used are 0.5g dibutyl phthalate, 0.25g silicone resin and 0.25g silane coupling agent KH550.

[0036] (2) Preparation of the carrier: weigh ethyl cellulose and terpineol, then heat it up to 80°C and keep the temperature constant. After the ethyl cellulose is completely dissolve...

Embodiment 2

[0040] (1) Prepare 100g of raw materials, prepare raw materials according to the following components and quality:

[0041]

[0042] The particle size of the spherical silver powder used is 2.3 μm, and the tap density is 3.2 g / ml; the particle size of the flake silver powder is 6 μm, and the tap density is 2.4 g / ml;

[0043] The composition and percentage of glass powder-L used are: Bi 2 o 3 70.B 2 o 3 16. ZnO8, SiO 2 3.5, Al 2 o 3 1.5, Na 2 O1.0, Fe 2 o 3 0. ZrO 2 0; the composition and percentage of the glass powder-M used are: Bi 2 o 3 64. SiO 2 26. B 2 o 3 6. Sb 2 o 3 2. Na 2 O0.5, Al 2 o 3 0.5, ZnO0.35, CuO0.25, CaO0.25, Fe 2 o 3 0.10, ZrO 2 0.05;

[0044] The organic additives used are 0.6g dioctyl phthalate, 0.20g silicone resin and 0.20g silane coupling agent KH560.

[0045] (2) Preparation of carrier: Weigh nitrocellulose and diethylene glycol butyl ether, then heat them up to 80°C and keep the temperature constant. After the nitrocellulose ...

Embodiment 3

[0049] (1) Prepare 100g of raw materials, prepare raw materials according to the following components and quality:

[0050]

[0051]

[0052] The particle size of the spherical silver powder used is 1.8 μm, and the tap density is 2.6 g / ml; the particle size of the flake silver powder is 7.5 μm, and the tap density is 1.9 g / ml;

[0053] The composition and percentage of glass powder-L used are: Bi 2 o 3 70.B 2 o 3 16. ZnO8, SiO 2 3.5, Al 2 o 3 1.5, Na 2 O1.0, Fe 2 o 3 0. ZrO 2 0; the composition and percentage of the glass powder-M used are: Bi 2 o 3 61. SiO 2 30.B 2 o 3 5. Sb 2 o 3 1.5, Na 2 O1.0, Al 2 o 3 0.5, ZnO0.45, CuO0.30, CaO0.25, Fe 2 o 3 0. ZrO 2 0;

[0054] The organic additives used were 1.0 g tributyl citrate, 0.50 g hydrogenated castor oil and 0.50 g silane coupling agent KH570.

[0055] (2) Preparation of the carrier: weigh ethyl hydroxyethyl cellulose, terpineol and butyl carbitol acetate, then heat them up to 80°C and keep the temp...

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Abstract

The invention relates to acid-resistant and antioxidant silver paste for automotive glass and a method for preparing the acid-resistant and antioxidant silver paste.The acid-resistant and antioxidant silver paste comprises, by weight, 55-75% of metal silver powder, 5-15% of glass powder, 2-10% of macromolecule resin, 1-3% of organic additives and 10-30% of organic solvents.The method includes steps of preparing materials; preparing carriers; preparing silver paste; producing the silver paste and the like to obtain the acid-resistant and antioxidant silver paste for the automotive glass.Compared with the prior art, the acid-resistant and antioxidant silver paste and the method have the advantages that requirements on technical indexes such as the electric conductivity, the adhesion, tin surface colors and black glaze matching attributes on the existing automotive glass can be met by the acid-resistant and antioxidant silver paste prepared by the aid of the method, the acid-resistant and antioxidant silver paste is acid-resistant and antioxidant, and the like.

Description

technical field [0001] The invention relates to a silver paste for automobile glass and a preparation method thereof, in particular to an acid-resistant and anti-oxidation silver paste for automobile glass and a preparation method thereof. Background technique [0002] In order to quickly eliminate fog and frost, the rear glass of the car is generally equipped with defogging and frost heating wires. The heating wire generally prints the silver paste on the surface of the automobile glass and black glaze by screen printing technology, and tempers it in a tempering furnace for 3-5 minutes, so that the silver paste adheres to the surface of the automobile glass and black glaze to form a silver layer. The resistance of the heating wire after sintering is generally 0.5-1.2Ω. Weld the power line on the silver surface on both sides of the car glass. After the voltage of 12-13V is applied, the entire heating wire starts to generate heat, thereby achieving the effect of defogging. S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/02C03C17/06C09D1/00C09D5/24C09D7/12
Inventor 朱庆明王德龙何利娜江海涵
Owner SHANGHAI BAOYIN ELECTRONICS MATERIALS CO LTD
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