Cellulose ether, known as “industrial MSG” is a semi-synthetic natural polymer material. It is widely used in the ceramic industry due to its excellent film-forming, adhesive, and water-retention properties.
The surface tension of cellulose ether aqueous solutions ranges from 44 to 56 dyn/cm (compared to the surface tension of water, which is 72 dyn/cm). Therefore, cellulose ether aqueous solutions exhibit a certain level of surface activity, allowing them to function as suspending and dispersing agents. This property is beneficial for the suspension and dispersion stability of ceramic mineral powder mortars.
Cellulose ether is a natural polysaccharide polymer and can completely burn up to produce carbon dioxide and water. It contains extremely low levels of metal ions (such as sodium ions) and is essentially free of multivalent ions including calcium, magnesium, and iron. This results in minimal impact on the ceramic crystal structure and very little contamination of the main components of the ceramics.
Cellulose ether is an effective water-retaining agent. Sufficient moisture not only ensures the plasticity of the ceramic body but also can moderately increase the porosity of the ceramics after sintering.
Cellulose ether, a high-performance adhesive, is suitable for bonding pure oxide ceramic materials, mullite mineral materials, cordierite mineral materials, silicon carbide, and silicon nitride ceramic materials. It is widely used in the bonding, suspension, and dispersion of architectural ceramics, sanitary ceramics, household ceramics, artistic ceramics, honeycomb ceramics, and ceramic membranes.
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