Through unique property profile YOU gain almost limitless potential

Use Mowital® polyvinyl butyral for YOUR tailor-made high performance ceramics

Polyvinyl butyral for ceramics

In electrical parts and screen printing

Mowital® grades are outstanding temporary binders for the manufacture of high performance ceramics to be used in solide oxide fuel cells, piezo ceramics, substrates or low temperature co-fired ceramics, and in passive components such as capacitors, inductors or resistors. The extremely low ion content makes Mowital® most suitable for these special applications. Mowital® grades are highly recommendable as temporary binders for production of conductive pastes (screen printing process). During the sintering process, Mowital® combusts with virtually no residue at temperatures between 350 and 550°C. Please note: Mowital®-based ceramics sinter with uniform shrinking behaviour.

Or metal pastes like in multilayer ceramic capacitators (MLCCs)

Mowital® is acting as binder having already dispersing properties for the conductive metals. It is yielding pastes and thick films which can be co-fired with green tapes in laminated ceramic substrates like multilayer ceramic capacitors (MLCC’s). Actually, the trend is towards thin films and conductor paths. Using Mowital® as binder for both, the ceramic green tapes and thick films reach best compatibility during co-firing and good dimensional stability before and after firing is observed.

And extraordinary functions in tape casting

Mowital® is a temporary binder especially suitable for the manufacture of high performance single and multi layer ceramics. It is compatible with organic substances used in ceramic slurries. The polar as well as non-polar chemical structure of Mowital® enables to produce flexible green tapes with high tensile strength and good elongation behaviour that can be lifted from launching material such as PET films or metal without damage. During laminating in multilayer processes Mowital® supports the fusion of green-tape layers.

PROPERTIES

  • excellent dispersion of ceramic particles
  • soluble in organic solvents
  • excellent film formation
  • fast solvent release
  • good green sheet stabilization
  • burns out residueless

Use Mowital® for

  • ceramic made by solvent-based processes (tape-cast processes for MLCC, alumina substrates)