Agglomeration mechanisms abrasion

The cohesive properties are important for keeping the designed particles intact when exposed to mechanical abrasion. This is essential for foods such as breakfast cereals in flakes or for feeds in pellet form. For agglomerated systems, this is dependent on adhesive interparticle interactions. 

These incorporate membranes fabricated from insoluble crystalline materials. They can be in the form of a single crystal, a compressed disc of micro-crystalline material or an agglomerate of micro-crystals embedded in a silicone rubber or paraffin matrix which is moulded in the form of a thin disc. The materials used are highly insoluble salts such as lanthanum fluoride, barium sulphate, silver halides and metal sulphides. These types of membrane show a selective and Nemstian response to solutions containing either the cation or the anion of the salt used. Factors to be considered in the fabrication of a suitable membrane include solubility, mechanical strength, conductivity and resistance to abrasion or corrosion. 

Abrasion resistance, 35 Agglomerate bonding and strength, see Bonding mechanisms... 

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