Fater has developed an innovative technology to sterilize and dry out post-consumer absorbent Hygiene products, in order to separate the main component materials (plastic films, defibrated cellulose pulp and super absorbent polymer-SAP) and to recover those as valuable secondary raw materials into appropriate industrial known and new products.
Here the inquiry is on SAP material that absorbs and retains most of the liquid (around 40 times its own weight of saline solution), forming hydrogel.
As said, with the Fater’s technology, SAP is dried out so that it goes back from its hydrogel form to the original powder form and still retaining at least 50% of its original absorbency capacity.
Moreover, being SAP a polyacrilate polymer cross-linked, it could be re-worked to recover the polymer in its linear form to become therefore source of such valuable but recycled raw material form as well.
Fater is looking for industrial partners, owing technologies where such recovered raw material can be demonstrated be used proficiently as replacement of current SAP material.
Furthermore, idea for innovative applications, even outside established market, are welcome and will be considered in order to be proven to be industrially scalable.
It is clear that the recovered SAP has a remarkable environmental impact being a replacement of the commercially available SAP produced from non-sustainable petrochemical source, and therefore it significantly improves the Life Cycle Assessment (LCA) of whatever application where it may be proficiently used.
Parameters (Particle size distribution, Retention capacity, Absorption under pressure, Speed of absorption) ruling SAP traditional absorbent applications can be still applicable but from one side they are significantly impacted by the use and recovery process, and from the other they may be insignificant for new applications where new characteristics (i.e. viscosity) can be more relevant.
Already known SAP functions, alternative to absorbency, for possible applications:
- Suspending agent
- Viscosity agent
- Flame retardant