Reducing water absorption in compostable starch-based plastics

Gáspár, M.; Benkő, Zs.; Dogossy, Gábor; Réczey, Kati; Czigány, Tibor

doi:10.1016/j.polymdegradstab.2005.03.012

Cited by 193 publications

(78 citation statements)

References 28 publications

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“…In plane CH bending that may be from hemicellulose or cellulose is characterized by the peaks around 1369 cm -1 . Similar finding was reported by Fan et al (2012) while investigating the FTIR spectra of natural fibers. …”

Section: Scanning Electron Microscopy (Sem)supporting

confidence: 89%

“…The tensile modulus of 5%TTF/SPS (20.33 MPa) composite film is 5 times higher than that of 5 %TTF reinforced tapioca starch (4 MPa) reported by Rodney et al (2015c). Overall, the mechanical property results observed in the study agreed with those reported by other researchers for natural fibers incorporated in thermoplastic starches (Gáspár et al 2005;Müller et al 2009;Sanyang et al 2016b;Edhirej et al 2016). Figure 6 shows optical microscopic images that illustrate the dispersion of TTF in the SPS matrix.…”

Section: Young's Modulussupporting

confidence: 86%

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Tea Tree (Melaleuca alternifolia) Fiber as Novel Reinforcement Material for Sugar Palm Biopolymer Based Composite Films

et al. 2017

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The tea tree (Melaleuca alternifolia) is well known for producing essential oil, which is used in medicinal and cosmetic products as a preservative, antiseptic, antibacterial, antifungal, and anti-pest additive. In this study, tea tree residues generated as agro-waste after the tea tree oil extraction process were utilized as cheap fiber material for the reinforcement of sugar palm starch (SPS)-based composite films. The crystallinity and functional groups of tea tree fiber (TTF) were investigated and the effect of TTF loading (0, 1, 3, 5, and 10 wt.%) on the tensile and morphological properties of TTF/SPS composite films were investigated. As the TTF loading increased from 0 to 10 wt.%, the tensile strength and modulus of TTF/SPS composite films were significantly increased, but their elongation at break declined. Optical microscopic and scanning electron microscopic images revealed that the TTF was randomly dispersed in all samples, and there was optimal compatibility between the fiber and matrix. Based on these findings, TTF can be considered as a potential reinforcement material for polymer composite films.

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Section: Scanning Electron Microscopy (Sem)supporting

confidence: 89%

Section: Young's Modulussupporting

confidence: 86%

Tea Tree (Melaleuca alternifolia) Fiber as Novel Reinforcement Material for Sugar Palm Biopolymer Based Composite Films

et al. 2017

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“…Starch is a renewable feedstock, which can be found all over the world in significant amounts in agricultural plants like maize, wheat, potato, rice, pea, etc. Based on the experience in the food processing industry, thermoplastic starch (TPS) was developed by disrupting starch granules with the help of heat and shearing action [5][6][7][8]. TPS can be further processed with slightly modified equipment like ordinary plastics, however, its drawbacks like low mechanical properties, quick ageing feature, and low water resistant properties made it only adequate for blends mostly in combination with another biodegradable polymer [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Crystalline structure of annealed polylactic acid and its relation to processing

Tábi¹,

Sajó²,

Szabó³

et al. 2010

Express Polym. Lett.

273

190

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Abstract. This paper focuses on the crystalline structure of injection moulding grade poly(lactic acid) (PLA) and the effect of crystalline structure on the processing. The research is induced by the significant differences in crystallinity of the pure PLA resin, and the injection moulded product, and thus the reprocessing of PLA products. 2 mm thick PLA sheets were injection moulded and re-crystallized in a conventional oven at 60-140°C, for 10-60 minutes to achieve various crystalline contents. The properties of these sheets were investigated by dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), and wide angle X-ray diffraction (WAXD). In a processing plant the rejected parts are recycled and reused as raw material for further cycles, accordingly the various crystalline content PLA products were reprocessed as a resin, to investigate the processing itself. When PLA products are reprocessed, due to the adherent feature of amorphous PLA processing difficulties may occur. This adherent effect of the amorphous PLA was investigated and characterized.

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“…1,7 Thus blending of starches with conventional polymers, cross-linker, plasticizers such as glycerin, water, and other polyol compounds is a promising approach to improve its drawbacks and make them suitable for engineering applications. [8][9][10][11] From the past few years, the development of starch-based composites reinforced with lignocellulosic fibers has been reported by different researchers around the globe with the main objective of research being focused on enhancement of mechanical properties of these thermoplastic starch composites. [12][13][14][15][16][17][18][19][20] Prachayawarakorn et al found that the addition of cotton fibers to thermoplastic rice starch (TPRS) improved the mechanical properties and the thermal stability of the TPRS composite.…”

mentioning

confidence: 99%

Mechanical, Thermal, Morphological, and Biodegradable Studies of Okra Cellulosic Fiber Reinforced Starch‐Based Biocomposites

2016

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ABSTRACT:The aim of present work is to study the behavior of completely biodegradable starch-based composites containing okra cellulosic fibers in the range from 5 to 25 wt%. The cornstarch matrix and composites were prepared by using urea-formaldehyde as a cross-linking agent. The cross-linked cornstarch matrix and its composites were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction, and thermogravimetric analysis. Furthermore, thermal and different mechanical properties, i.e., tensile, compressive, and flexural strength of composites, were also studied. The thermal stability of fiber-reinforced composite was increased as compared to starch matrix. The mechanical properties of composite such as tensile, compressive, and flexural have been found to increase with the increase in fiber content up to 15% loading. The composite specimens tested for tensile, compressive, and flexural strength at 15% fiber loading exhibited values of 17.78 ± 0.89, 33.55 ± 1.67 and 60.1 ± 3.01 MPa, respectively. Furthermore, the matrix and composites were subjected to biodegradation studies through the soil burial method. C 2016 Wiley Periodicals, Inc. Adv Polym Technol 2016, 0, 21646; View this article online at wileyonlinelibrary.com.

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Reducing water absorption in compostable starch-based plastics

Cited by 193 publications

References 28 publications

Tea Tree (Melaleuca alternifolia) Fiber as Novel Reinforcement Material for Sugar Palm Biopolymer Based Composite Films

Tea Tree (Melaleuca alternifolia) Fiber as Novel Reinforcement Material for Sugar Palm Biopolymer Based Composite Films

Crystalline structure of annealed polylactic acid and its relation to processing

Mechanical, Thermal, Morphological, and Biodegradable Studies of Okra Cellulosic Fiber Reinforced Starch‐Based Biocomposites

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