Biodegradation behaviour of porous calcium polyphosphate in Hanks' solution

Porous calcium polyphosphate bodies were made by sintering mixture of monocalcium phosphate monohydrate (MCPM) and polyvinyl alcohol (PVA). Experimental results showed the initial tensile strength of porous bodies was dependent on the contents of the additive PVA. After immersion in Hanks' solution, on the body surface there was a pitting appearance with immersion-induced micropores. With increasing immersion time, the strength of various porous bodies decreased and the weight loss increased.