“…The WVP values observed in this work are lower than those reported in literature for other fiber‐reinforced starch‐based films, with values between 2.86 × 10 −10 and 5.02 × 10 −11 g.m.m −2 .s −1 .Pa −1 for films reinforced with eucalyptus fibers and between 2.0 × 10 −10 and 6.4°× 10 −10 g.m.m −2 .s −1 .Pa −1 for films reinforced with wheat bran fibers …”
Section: Resultscontrasting
confidence: 83%
“…The same effect was observed in the development of biodegradable composites reinforced with bacterial cellulose fiber . The reduction in elongation percentage of the films can be explained by the antiplasticizer effect of the fibers present in cassava bagasse, which acts reducing the free volume between the chains of the starch polymer matrix, consequently increasing the intermolecular forces and reducing the molecular mobility of the starches polymer chains, thus increasing the tensile strength and decreasing the elongation of the films …”
The objective of this work was to develop biodegradable films using fibrous residue from the extraction of cassava starch and to investigate its effect as a reinforcement agent in polymeric films. Micrographs (SEM) showed that the obtained films presented smooth surfaces with no cracking. The addition of fibers affected the properties of the films significantly (p < 0.05), reducing water vapor permeability values (from 8.63 AE 0.15 × 10 −11 g.m.m −2 .s −1 .Pa −1 to 3.33 AE 0.16 × 10 −11 g.m.m −2 .s −1 .Pa −1 ) and increasing the maximum tensile strength (from 1.23 AE 0.15 MPa to 7.78 AE 0.83 MPa). These results encourage the use of cassava bagasse as a reinforcement in the production of green composites as packaging.
“…The WVP values observed in this work are lower than those reported in literature for other fiber‐reinforced starch‐based films, with values between 2.86 × 10 −10 and 5.02 × 10 −11 g.m.m −2 .s −1 .Pa −1 for films reinforced with eucalyptus fibers and between 2.0 × 10 −10 and 6.4°× 10 −10 g.m.m −2 .s −1 .Pa −1 for films reinforced with wheat bran fibers …”
Section: Resultscontrasting
confidence: 83%
“…The same effect was observed in the development of biodegradable composites reinforced with bacterial cellulose fiber . The reduction in elongation percentage of the films can be explained by the antiplasticizer effect of the fibers present in cassava bagasse, which acts reducing the free volume between the chains of the starch polymer matrix, consequently increasing the intermolecular forces and reducing the molecular mobility of the starches polymer chains, thus increasing the tensile strength and decreasing the elongation of the films …”
The objective of this work was to develop biodegradable films using fibrous residue from the extraction of cassava starch and to investigate its effect as a reinforcement agent in polymeric films. Micrographs (SEM) showed that the obtained films presented smooth surfaces with no cracking. The addition of fibers affected the properties of the films significantly (p < 0.05), reducing water vapor permeability values (from 8.63 AE 0.15 × 10 −11 g.m.m −2 .s −1 .Pa −1 to 3.33 AE 0.16 × 10 −11 g.m.m −2 .s −1 .Pa −1 ) and increasing the maximum tensile strength (from 1.23 AE 0.15 MPa to 7.78 AE 0.83 MPa). These results encourage the use of cassava bagasse as a reinforcement in the production of green composites as packaging.
“…Romera et al. [38] have studied the surface roughness of cassava starch cellulose blend films and reported that root means square roughness values of 29–45 nm. The result of surface roughness shown that the roughness of composite bioplastic is higher than starch bioplastic this increased rate of roughness may be due to the addition of TiO 2 .Fig.…”
Plastic is an amazing material, and wonderful invention, it has changed the world. Plastic is used everywhere and every day across the globe. But despite its varied uses, its disposal has threatened the environment. Biodegradable plastics can meet these needs and can easily be disposed to the environment. This work focuses on the characterization and performance analysis of starch bioplastics and composite bioplastic to reduce the plastic pollution by its various uses. TGA, DSC, SEM, FTIR, and surface roughness analyses were used to characterize, the mechanical properties, thermal properties and the morphology of the starch bioplastics and composite bioplastic. Starch bioplastics were fabricated using starch vinegar and glycerol. Composite bioplastics ware fabricated using starch, vinegar, glycerol and titanium dioxide. The addition of titanium dioxide improved the tensile strength of the bioplastics from 3.55 to 3.95 MPa and decreased elongation from 88% to 62%. According to Differential Scanning Calorimetry (DSC) Test, the melting point (T
m
) and Glass Transition Temperature (T
g
) significantly affected by the presence of titanium dioxide (TiO
2
). The degree of nano-composite crystallinity was formed by the strong interfacial interaction between the titanium dioxide nanoparticles and the amorphous region of the chain. The decomposition temperature of starch bioplastic was increased by mixing with titanium dioxide nanoparticles. The results gained from SEM showed that better compatible morphologies in composite bioplastic compared to starch bioplastic for its fewer voids, holes, and crack. The functional group O–H, C–H, C=O, and C–O indicate the formation of starch bioplastics and composite bioplastics has already occurred which was confirmed by FTIR spectroscopy. The result is also verified with the available results of other researchers. Therefore, composite bioplastic is a modified elevation of a starch bioplastic with a modified upgrade feature. It can be an alternative to existing conventional plastic, especially packaging applications.
“…Atomic force microscopy (AFM) has been used in the study of polymers to obtain topography images, determine average surface roughness, hardness and apparent friction coefficient and estimate the interfacial interaction strength at the interface between a polymer monolayer and a solid substrate . Atomic force acoustic microscope (AFAM) is used to map the elastic modulus distribution of hard surfaces having variations in composition by an ultrasonic frequency that is applied to the tip or sample, providing maps of stiffness which can be converted to elastic modulus map …”
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
