Mechanically stable solid sponges can be produced by freeze drying 2 % agar and 1 % alginate gels. The sponges have characteristic compressive stress‐strain curves that can be described by a three‐parameter model originally developed for polymeric sponges and bakery products. Internally produced bubbles, formed by immersing bicarbonate‐containing gels in an acid bath, resulted in a considerable loss of mechanial integrity in the dry agar sponges but not in those of the alginate.
No takes yet. Share an insight, caveat, or question.
Nussinovitch et al. (1993) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: