PROPERTIES OF BIOPLASTIC / the truth about bioplastic After making our first tests of bioplastic with a gelatin base we can make a list of pros & cons and reveal the truth about this bioplastic. PROS : - can take any shapes (volume, surface, sheet...) - can have different performance by changing the dosages of water, gelatin and glycerol (elastic -> rigid) - can be transparent & smooth or opaque & fluffy if you add air inside the mix - can dissolve in the water (pros or cons?) - can be easily recycled and reused by warming it again CONS : - don’t smell good (especially when you cook it, once dry the smell begins to fade) - glue to wood, metal, cardboard but rejects plastic elements if its placed on the surface - don’t resist water - don’t resist the heat (never put bioplastic in the oven !) - if you create a volume with a large concentration of bioplastic this one will tend to mold. -- it will shrink and change its shape while it dries
Samples of bioplastic with different materialities :
-> hard : water 250 ml, gelatin 50 g, no glycerol -> flexible : water 250 ml, gelatin 50 g, glycerol 50 g
7