Question: Is it better to add polyanionic cellulose PAC and CMC in ceramic production?

answer:

In ceramic production, adding polyanionic cellulose (PAC) and CMC can improve the flexural strength of mud, but in practical applications, it is necessary to select appropriate additives according to different needs and situations.

Flexural strength: Adding CMC can significantly improve the flexural strength of the mud, and a better effect can be achieved at a lower addition amount. Although PAC can also improve the flexural strength of mud, its effect is slightly inferior to that of CMC.

Suspension: CMC has good suspension, which can effectively prevent the coagulation of barren raw material particles and help maintain the stability of the mud. However, PAC performed slightly worse than CMC in this respect.

Mechanical wear resistance: During mechanical stirring, the molecular chain of CMC may be destroyed, reducing its ability to resist mechanical wear. In contrast, PAC has better resistance to mechanical wear and is more suitable for mechanically stirred ceramic production processes.

Therefore, when selecting additives for ceramic production, it is necessary to comprehensively consider specific production conditions, raw material characteristics and production requirements. If you pay more attention to flexural strength and suspension, CMC may be a better choice; if you pay attention to mechanical wear resistance and environmental performance, PAC may be more suitable.