ZHENGSHAN TECHNOLOGY

Electrode paste is a key material in the electrolysis process, and its performance directly affects the electrolysis efficiency and service life. Coal tar pitch, as an important component in the production of electrode paste, plays an irreplaceable role in the preparation and application of electrode paste due to its unique physical and chemical properties. This article aims to explore the various roles and research status of coal tar pitch in the production and application of electrode paste.
Basic properties of coal tar pitch
Coal tar pitch, also known as coal tar pitch, is a complex mixture separated from coal tar and belongs to artificial pitch. It is usually a viscous liquid, semi-solid or solid, with a black color and a glossy finish. Coal tar pitch is the residue of coal tar after distillation and processing to remove liquid fractions, accounting for about 50% -60% of the total coal tar. Its unique physical and chemical properties make it widely used in multiple fields.
The role of coal tar pitch in electrode paste production
binder
Coal tar pitch is mainly used as a binder in electrode paste, which can firmly bond different electrode materials together and form a stable electrode structure. Its high bonding strength and good plasticity enable the electrode paste to remain stable under high temperature and humidity conditions. In addition, coal tar pitch has excellent heat resistance and can maintain bonding performance at high temperatures, thereby improving the service life of electrodes.
Insulating agent
Coal tar pitch also has good insulation properties, which can effectively prevent short circuits or leakage of electrodes during the electrolysis process. Compared with other insulation materials, coal tar pitch has better moisture resistance and can maintain stable insulation effect in high humidity environments, thereby ensuring the safety and stability of the electrolysis process.
Refractory materials
The high temperature stability of coal tar pitch makes it an ideal refractory electrode material. In high temperature environments, coal tar pitch can maintain stable performance, prevent electrode melting or burning, and thus extend the service life of electrodes. In addition, coal tar pitch has good chemical stability and can maintain stable electrode performance in various chemical environments.
Mechanical strength enhancer
By adjusting the type and amount of coal tar pitch, the mechanical properties of electrode paste can be optimized, making it more impact resistant and wear-resistant. The addition of coal tar pitch can significantly improve the mechanical strength of electrode paste, enabling it to withstand greater pressure and impact during use.
Electrical performance improvement agent
Coal tar pitch has good conductivity and can improve the electrical performance of electrode paste. Reasonable control of the coal tar pitch ratio during the preparation process can reduce the electrical resistivity of the electrode paste and improve its conductivity. At the same time, the insulation performance of coal tar pitch can also prevent current leakage to a certain extent, ensuring the smooth progress of the electrolysis process.
Thermal stability enhancer
Coal tar pitch has high thermal stability and can remain stable at high temperatures without easily decomposing or deteriorating. Adding coal tar pitch to electrode paste can significantly improve its thermal stability and ensure excellent performance even in high temperature environments. In order to prevent coal tar pitch from producing odor and smoke at high temperatures, the softening point of coal tar pitch can be controlled by adjusting the raw material ratio and heat treatment conditions, so that the softening point of coal tar pitch is within a suitable range.
The current application status of coal tar pitch in electrode paste production
In the production process of electrode paste, the application of coal tar pitch has been quite mature. By reasonable proportioning and process control, high-performance electrode paste products can be prepared. At the same time, with the development of technology, research on coal tar pitch is constantly deepening to further improve its application effect in electrode paste production.
Research prospects
Although coal tar pitch has achieved significant application effects in electrode paste production, there are still many issues that need further research. For example, how to further improve the bonding strength and heat resistance of coal tar pitch; How to reduce the harmful gases and smoke generated by coal tar pitch at high temperatures; How to reduce the cost of using coal tar pitch, etc. In the future, with the continuous deepening of research on coal tar pitch, it is believed that these problems will be better solved, bringing more convenience and benefits to the production of electrode paste.
Coal tar pitch, as an important component in electrode paste production, plays a crucial role in binders, insulation agents, refractory materials, mechanical strength enhancers, electrical performance improvers, and thermal stability enhancers. By utilizing coal tar pitch reasonably, the performance of electrode paste can be optimized, and the efficiency and safety of electrolysis process can be improved. Meanwhile, in-depth research on coal tar pitch will help further improve the production level and application effect of electrode paste.