Abstract
This study investigated the effect of biofiller on the cellular structure and water absorption properties of PUF. Although all foams absorbed water, the foams with peach stone fillers and the biochar-activated foams achieved maximum water absorption much higher than neat PU and PUCAC. The percentage was practically quadrupled in PUPSAC and doubled in PUPS compared to neat PU. In conclusion, we have demonstrated a reliable approach to water uptake in PUF composites based on biomass as a porous substrate as a modifier of polyurethane foams. Therefore, this research aims to reinforce polyurethane foam with biofillers to increase its water uptake properties, which may allow it to be used in new applications such as the adsorption of heavy metals and pathogenic microorganisms.
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