Through the need to minimize environmental impacts, arising from the use of materials
derived from fossil fuels and not biodegradable, new raw materials derived from
renewable sources have been the object of study of numerous studies that seek the
development of more ecological alternatives. In this context, starch, one can cite the
use of biopolymers, such as corn starch film, for its biodegradable character and low
economic cost. Its application remains limited, due to its high hydrophilicity,
compromising its mechanical properties when requested. Biodegradable materials
have been studied to be used as reinforcement of the films, and reduce their
hydrophilicity. Thus, the objective of the study was to develop a biofilm, through the
casting method, with a biopolymer matrix formed from starch and glycerol as
plasticizer, reinforced with cellulose nanocrystals obtained from pineapple crown fiber.
The film was characterized by means of physical (thickness, solubility, moisture
content, water absorption), morphological (optical microscopy, scanning electron
microscope), mechanical (tensile test) and thermal (thermogravimetry) analyses. The
result of the study showed a film with the appearance of cellulose microfibers,
presenting improvements in its properties, with a decrease of 7.98% in solubility and
42.85% in water absorption, an increase to Maximum Stress values of 2.75MPa and
Elastic Modulus of 2.58MPa, and relative improvement in its thermal stability
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