Copper oxide (CuO) as an efficient catalyst and colorant, it has a wide range of applications in the glass and ceramic industry. Its unique chemical properties enable it to give products a vivid blue or green hue while enhancing the performance of the material.
Application Case:
Blue glass products: The addition of a copper oxide catalyst in the melting process of glass produces stable copper ions (Cu² +), giving glass its clear blue color. It is widely used in the fields of art, decoration and light filter.
Green ceramic glaze: Copper oxide can be used as a colorant for ceramic glaze, which reacts with the glaze composition during high temperature firing to produce green copper silicate, showing a unique green effect. Commonly used in ceramic tiles, tableware and decorative ceramics and other products.
Strategies to maximize value:
Precise control of the addition amount: the amount of copper oxide directly affects the color depth, and needs to be precisely controlled according to the target color and product performance requirements to avoid excessive color or material performance decline.
Optimize the firing process: firing temperature, time and atmosphere are critical to the color rendering effect of copper oxide. The firing process parameters need to be optimized according to the specific material and product requirements to obtain the desired color and performance.
Combination with other colorants: The combination of copper oxide with other colorants (such as cobalt oxide, chromium oxide, etc.) can expand the color range and obtain a richer color effect.
Note:
Avoid reducing atmosphere: Copper oxide will be reduced to elemental copper in reducing atmosphere, resulting in color change and material performance degradation. The firing atmosphere should be strictly controlled to avoid the presence of reducing gases.
Preventing copper ion migration: In some application scenarios, copper ions may migrate, affecting the appearance and performance of the product. Copper ion migration can be prevented by adding stabilizers or using special processes.
Safety protection: Copper oxide powder has certain toxicity, safety protection measures should be taken to avoid inhalation or contact with the skin.
Through rational application and optimization strategy, copper oxide catalyst can give bright color and excellent performance to glass and ceramic products, improve product value and market competitiveness.