Mechanical, Physical, and Barrier Properties of Poly(Lactide) Films

Auras, Rafael; Harte, Bruce; Selke, Susan; Hernández, Rubén J.

doi:10.1177/8756087903039702

Cited by 307 publications

(211 citation statements)

References 8 publications

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“…Neat PLA oxygen barrier properties are in accordance with published data [54,[60][61][62][63][64][65]. Interestingly, the inclusion of at least 10 wt% of lignin yielded a decrease in oxygen permeability of around 20 %.…”

Section: Composite Materials Characteristicssupporting

confidence: 77%

Potential of Lignins as Antioxidant Additive in Active Biodegradable Packaging Materials

et al. 2013

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. Abstract Due to their polyphenolic structure lignins bear a number of interesting functional properties, such as antioxidant activity. Natural antioxidants are very much looked for in the aim of protection of light or oxygen sensitive goods and are being used in active packaging. Poly(lactide) (PLA)-lignin films were prepared by twin screw extrusion followed by thermo-compression using two different commercial sources of alkali lignins obtained from gramineous plants. A good dispersion of lignin in the matrix was observed. Mechanical properties of the compounded material were merely diminished and oxygen barrier properties slightly enhanced. The chromatographic study of the lignins revealed that the low molecular weight fraction of both lignins increased during the polymer processing. The migration of low molecular weight compounds in an ethanol/water solution simulating fatty foodstuff was performed and the antioxidant activity of the extract was analysed. It was found that the activity increases with increasing severity of the heat treatment because of the generation of free phenolic monomers during processing. These results open an interesting way for application of lignins as an active compound in packaging materials. Lignins do not impair the mechanical and barrier performance of the polymer and the plastics processing even allows for the generation of active substances.

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Section: Composite Materials Characteristicssupporting

confidence: 77%

Potential of Lignins as Antioxidant Additive in Active Biodegradable Packaging Materials

et al. 2013

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“…The reports on this had indicated an increase in the thermal stability of the PLA in the presence of Fibers. Rafael A. Auras [3] gives the properties of PLA such as glass transition temperature (Tg) of PLA ranges from 50 to 80 0 C while the melting temperature (Tm) ranges from 130 to 180 0 C. K. Murali Mohan Rao, [4] had explained the extraction process of Elephant grass fiber and properties of elephant grass fiber. The tensile strength and the modulus of chemically extracted elephant grass fiber composites have increased by approximately 1.45 times to those of elephant grass fiber composite extracted by retting process.…”

Section: Introductionmentioning

confidence: 99%

Investigation of mechanical behaviour of natural composites (snake grass and elephant grass) with poly lactic acid

Thiruvasagam¹,

Prabagaran²,

Suresh³

2017

IJET

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The Poly Lactic Acid (PLA) is a completely biodegradable potential alternate of plastics applied in Civil infrastructural field because it posses very good "Ultimate Withstanding" properties. It can also be stated that hybrid fiber composite is having higher Mechanical and Physical characteristics compared with Mono fiber reinforced composite. Naturally existing Snake Grass (SG) and Elephant Grass (EG) reinforced PLA matrix fabrication is being narrated in this research article. By experimentation and analysis of results, it is proved that the Tensile strength, % Elongation, Flexural strength, Impact strength and Water absorption properties of SG & EG reinforced PLA composite is better than that of pure PLA Matrix.

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“…Poly(lactic acid), a renewable polymer, is synthesized by esterification of lactic acid from fermentation of by product agriculture waste such as corn starch or rich flour-substance such as maize, sugar and wheat [16]. Poly(lactic acid) have good heat resistance properties and strength as well as elastic polymer [17].…”

Section: Introductionmentioning

confidence: 99%

Biodegradable Poly(Lactic acid) Based Food Packaging Incorporated with Antioxidant from Extract of Several Plants

Hanafi¹,

Foliatini²,

Setyawati³

et al. 2018

Asian J. Chem.

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The demand for smart biodegradable food packaging is increasing due to its capability to preserve food product and maintain food stability. Natural antioxidant food packaging based on poly(lactic acid) (PLA) can be synthesized by addition of certain extract of plant into the polymer matrix. In this study, we develop PLA-based antioxidant food packaging modified with extract of turmeric, mangosteen skin and soursop leaves. The as-obtained film were characterized by several thermal and mechanical assessment, antioxidant assay and applied for packaging of orange fruit. The results showed that the PLA based food packaging incorporated with extract of turmeric, mangosteen skin and soursop leaves have antioxidant activity with IC50 of 0.83-2.11 %, 0.24-0.30 %, 1.89-4.33 %, respectively. The peaks from FTIR spectra indicated integration of the antioxidant aromatic compound into the polymer matrix. The tensile strength and percentage of elongation of these films were in the range of 12.5-27.83 MPa and 4.00-11.67 %, respectively. DSC curves and XRD diffractogram of these films revealed that these films were semicrystalline. These films have been proved to be an antioxidant food packaging which retarded the rate of decay of orange fruit.

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Mechanical, Physical, and Barrier Properties of Poly(Lactide) Films

Cited by 307 publications

References 8 publications

Potential of Lignins as Antioxidant Additive in Active Biodegradable Packaging Materials

Potential of Lignins as Antioxidant Additive in Active Biodegradable Packaging Materials

Investigation of mechanical behaviour of natural composites (snake grass and elephant grass) with poly lactic acid

Biodegradable Poly(Lactic acid) Based Food Packaging Incorporated with Antioxidant from Extract of Several Plants

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