Low-temperature lead-free glass powder for household appliance anti-impact ink, and preparation method thereof

Abstract

The invention provides low-temperature lead-free glass powder for household appliance anti-impact ink, and a preparation method thereof, wherein the low-temperature lead-free glass powder is preparedfrom the following raw materials by mass: 15-30% of quartz powder, 40-60% of bismuth oxide powder, 10-25% of zinc oxide powder, 1.5-4.0% of sodium carbonate powder, 0.5-5% of potassium carbonate powder, 0.3-1.0% of alumina powder, 1.0-10% of boric acid powder, 1.0-5% of sodium fluoride powder, 1.0-5% of titanium oxide powder, 0.5-3% of lithium carbonate powder, and 1.0-5% of zirconia powder. According to the present invention, the glass powder does not contain lead, and meets the requirements of environmental protection and sustainable development; the preparation process is non-toxic, harmless and non-polluting; the raw materials of the formula are simple, and the wide softening temperature and the suitable expansion coefficient can be obtained while the glass softening temperature can bereduced; the product has excellent impact resistance and excellent cold-thermal shock resistance; and the obtained glass powder has good chemical stability, good blackness and good hiding power.

Description

technical field [0001] The invention relates to the technical field of ink materials, in particular to a low-temperature lead-free glass powder for impact-resistant ink of household appliances and a preparation method thereof. Background technique [0002] Anti-impact glass ink for household appliances is used for full-page printing or overprinting of toughened glass for household appliances, preventing chemical changes in the glue used to bond glass and home appliance substrates, giving home appliances an aesthetic effect and strong impact resistance. And inks with thermal and thermal shock resistance. [0003] Tempered glass ink for household appliances is mainly composed of glass powder, black glass pigment, varnish, additives, etc. and formulated according to a certain proportion. The mass percentage of glass powder can generally reach about 60% to 80%. As a binder, glass powder plays an important role in glass ink. The glass powder softens and melts during sintering t...

AI Technical Summary

Problems solved by technology

However, in fact, improving the impact resistance and reducing the softening temperature are contradictory to a certain extent.

[0006] At present, the glass inks used in domestic appliances still have problems such as insufficient softening temperature, insufficient blackness, insufficient impact resistance and thermal shock resistance.