5.2.4. Exp.04: Cellulose Filament Cellulose is a homopolysaccharide biopolymer that is also the most abundant existing organic biomolecule since it forms the majority of the terrestrial biomass. Cellulose is a structural polysaccharide in plants, since it is part of the structural tissues. The wall of a young plant cell contains about 40% cellulose; wood 50%, while the purest example of cellulose is cotton, with a percentage greater than 90%. For the experiments, I’ll try to make some Biomaterials based on Cellulose, the base ingredients are: . 4 grs of CMC Cellulose . 8 grs of Glycerine . 4 drops of Collagen . Water First of all, we have to see if the base of our biomaterial is gonna work by itself and see how it looks without any additives.
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For the preparation of the biomaterial it is only necessary to follow the order of, Polymer, in this case the CMC Cellulose Plasticizer, in this case Glycerine Color or Pigments, in this case I put Collagen For this sample, I try to extrude it with a syringe and made this filament, then I left it in a petri dish for overnight and then put it in the dehydrator for 4 hrs. The results went better than I expected, even when it’s “totally” dry it stays elastic and with good form, it sticks with each other so it works as 3D printing material. For the second experiment I try adding Chitin or Chitosan to the Base of the Cellulose Filament. For this experimentation I need.
. 1 grs of CMC Cellulose . 4 grs of Glycerine . 0,4 grs of Chitosan (1 pill) . 2 drops of Collagen . Water For this sample, I try to extrude it with a syringe and made this filament, then I left it in a petri dish for overnight and then put it in the dehydrator for 4 hrs. The Experiment 02 went well at the begging, it’s more malleable than the base. It can be extruded with a thinner syringe but it started well and then it started to break, maybe the amount of water isn’t enough for the additive. For the third experiment I try adding Sodium Silicate to the Base of the Cellulose Filament. For this experimentation I need, . 4 grs of CMC Cellulose . 8 grs of Glycerine
