What additives can be added to a slurry or paste?
solvent
dispersant/deflocculant
Binders
Plasticizers
What is are the selection criteria for solvents?
abillity to dissolve the additives
evaporation rate
ability to wet the particles
viscosity
reactivity withthe powder
What types of defloculant exist?
Inorganic acid salts
polyelectrolytes
Surfactants (low MW polymers)
Why are Binders used?
higher green strength
What are the selection criteria for binders?
solubility in the solvent
burn out characteristics
copatibility with dispersants
molecular weight
Tg
effect on viscosity
What is the usage of pasticizers?
Increasing the deformability
What is the mechanical behaviour for different degrees of pore saturation (DPS)?
What is the meaning of the degree of pore saturation?
The fraction of pores that are filled with liquid.
<=> 1=all pores are filled with liquid
What is the desired viscous behaviour for suspensions?
shear thinning with yield stress
Last changed6 months ago
