Structural, mechanical and barrier properties of active PLA–antioxidant films

Jamshidian, Majid; Tehrany, Elmira Arab; Imran, Muhammad; Akhtar, Muhammad Javeed; Cleymand, Franck; Desobry, Stéphane

doi:10.1016/j.jfoodeng.2011.12.034

Cited by 154 publications

(84 citation statements)

References 40 publications

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“…It appears to be one of the most attractive material for applications in agriculture and food packaging sectors, due to its facile availability, good biodegradability and good mechanical properties [7]. Its weaknesses include poor gas barrier properties, low toughness and ductility, poor thermal stability and high cost, so that many research studies have focused on overcoming these limitations, to increase its potential in the fabrication of attractive materials for wide industrial applications [8,9]. The addition of nanoparticles, as polymer additives, is a very promising approach to improve mechanical properties, elevate heat distortion temperature and enhance barrier properties with an addition of limited amounts of nanofillers (2-8 wt.%) [10].…”

Section: Introductionmentioning

confidence: 99%

Effect of processing conditions and lignin content on thermal, mechanical and degradative behavior of lignin nanoparticles/polylactic (acid) bionanocomposites prepared by melt extrusion and solvent casting

Yang

Fortunati

Dominici

et al. 2015

European Polymer Journal

169

102

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Section: Introductionmentioning

confidence: 99%

Effect of processing conditions and lignin content on thermal, mechanical and degradative behavior of lignin nanoparticles/polylactic (acid) bionanocomposites prepared by melt extrusion and solvent casting

Yang

Fortunati

Dominici

et al. 2015

European Polymer Journal

169

102

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“…So, additives are require for transparent PLA films to block light transmission [22]. Furthermore, PLA modified with natural origin compounds has been proposed as active packaging [8,23,24]. In this way, Hwang et al, (2011) proposed PLA with added α-tocopherol and resveratrol as promising active functional membranes [8].…”

Section: Introductionmentioning

confidence: 99%

“…In this way, Hwang et al, (2011) proposed PLA with added α-tocopherol and resveratrol as promising active functional membranes [8]. Jamshidian et al, (2012) studied PLA with ascorbyl palmitate although they reported high loss of antioxidant during polymer preparation and negatives results on PLA transparency [24].…”

Section: Introductionmentioning

confidence: 99%

Characterization of PLA-limonene blends for food packaging applications

Arrieta¹,

López²,

Bou³

et al. 2013

Polymer Testing

282

150

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Polymers derived from renewable resources are now considered as promising alternatives to traditional petro-polymers as they mitigate current environmental concerns (raw renewable materials/biodegradability). d-limonene can be found in a variety of citrus, indeed is the main component of citrus oils and one of most important contributors to citrus flavor. The incorporation of limonene in PLA matrix was evaluated and quantified by Pyrolysis Gas Chromatography Mass Spectrometry (Py-GC/MS). Transparent films were obtained after the addition of the natural compound. Mechanical properties were evaluated by tensile tests. The effect of limonene on mechanical properties of PLA films was characterized by an increase in the elongation at break and a decrease in the elastic modulus. The fracture surface structure of films was evaluated by scanning electron microscopy (SEM), and homogeneous surfaces were observed in all cases. Barrier properties were reduced due to the increase of the chain mobility produced by the d-limonene.

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“…Namun, PLA juga memiliki beberapa kelemahan, antara lain memiliki sifat sebagai penahan gas yang buruk, toughness rendah, ductility rendah, kestabilan termal rendah. Beberapa penelitian untuk mengatasi kelemahan-kelemahan tersebut telah dilakukan 7,8 . Penambahan nanopartikel merupakan pendekatan yang menjanjikan untuk meningkatkan sifat mekanik, meningkatkan suhu distorsi panas, meningkatkan sifat penghalangnya 9.…”

Section: Pendahuluanunclassified

Pengaruh Penambahan Lignin Terhadap Stabilitas Termal Biokomposit Poliasam Laktat / Lignin

Ghozali¹,

Irawan²,

Waskitoaji³

2018

J. Penelit Pascapanen Pertan

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ABSTRAKBiomassa merupakan sumber daya alam terbarukan yang ketersediaanya sangat melimpah di Indonesia yang memiliki potensi besar untuk dikembangkan sebagai polimer biodegradabel terbarukan. Poliasam laktat atau polylactic acid (PLA) dan lignin merupakan material polimer biodegradabel yang secara ekonomi memiliki potensi yang sangat besar untuk dikembangkan. Penelitian ini bertujuan untuk mempelajari pengaruh penambahan lignin terhadap stabilitas termal biokomposit PLA/Lignin. Pembuatan biokomposit PLA/ Lignin dilakukan dengan cara mencampurkan PLA dengan lignin dalam rheomix dengan suhu 200ºC, kecepatan pengadukan 70 rpm selama 30 menit. Komposisi lignin yang ditambahkan adalah 5, 10, 15 dan 20 phr. Analisis menggunakan Fourier Transform Infra Red (FTIR) dilakukan untuk menentukan gugus fungsi biokomposit PLA/Lignin. Stabilitas termal biokomposit PLA/Lignin dipelajari menggunakan Termogravimetric Analysis (TGA). Hasil analisa stabilitas termal menunjukkan degradasi termal utama biokomposit PLA/Lignin pada berbagai komposisi terjadi pada rentang suhu 230-360°C. Penambahan lignin ke dalam biokomposit PLA/Lignin akan meningkatkan massa tersisa sehingga dapat meningkatkan stabilitas termal biokomposit PLA/Lignin tersebut. Meningkatnya massa yang tersisa ini disebabkan oleh struktur kimia lignin, yang menunjukkan kurang berkontribusi terhadap kemampuan terbakar material yang disebabkan karena tingginya kemampuan menjadi arang dan rendahnya pelepasan panas ketika dibakar, sehingga sangat berpotensi digunakan sebagai flame retardant untuk berbagai aplikasi. Biomass is a highly abundant renewable natural resource available in Indonesia that holds great potential to be developed as a renewable biodegradable polymer. Polylactic acid (PLA) and lignin are among of those biodegradable polymer materials with a great potential of economic value to be developed. This research is purposed to study the effect of lignin addition on thermal stability of PLA/Lignin biocomposites. PLA/Lignin biocomposites has been manufactured by mixing PLA and lignin into rheomix at a temperature of 200°C with a stirring speed of 70 rpm for 30 minutes. The composition of lignin added was 5, 10, 15 and 20 phr. Fourier Transform Infra-Red (FTIR) spectrum analysis was conducted to determine the functional groups of PLA/Lignin biocomposites.The thermal stability was analyzed by termogravimetric analysis (TGA) and the results showed that the main thermal degradation occurred in temperature range of 230-360°C. The addition of lignin into PLA/Lignin biocomposites could increase residual mass which improves the thermal stability of PLA/Lignin bicomposites. The increase in the residual mass was due to the chemical structure of lignin, which indicates the less contribution to the material's burning ability due to its high ability to become charcoal and low heat release when burned, making it potentially used as a flame retardant for various applications.

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Structural, mechanical and barrier properties of active PLA–antioxidant films

Cited by 154 publications

References 40 publications

Effect of processing conditions and lignin content on thermal, mechanical and degradative behavior of lignin nanoparticles/polylactic (acid) bionanocomposites prepared by melt extrusion and solvent casting

Effect of processing conditions and lignin content on thermal, mechanical and degradative behavior of lignin nanoparticles/polylactic (acid) bionanocomposites prepared by melt extrusion and solvent casting

Characterization of PLA-limonene blends for food packaging applications

Pengaruh Penambahan Lignin Terhadap Stabilitas Termal Biokomposit Poliasam Laktat / Lignin

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