Biaxial Orientation of Polylactide/Thermoplastic Starch Blends

Chapleau, N.; Huneault, Michel A.; Li, H. B.

doi:10.3139/217.2070

Cited by 52 publications

(50 citation statements)

References 19 publications

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“…However, the incorporation of R-(-)-carvone at all concentrations resulted in an increase of about 5-7% crystallinity as compared to that of neat PLA. As the stretching takes place in the semi-solid state, high levels of orientation can be achieved depending on operating conditions [14]. The results suggested possible orientation and strain-induced crystallization in the R-(-)-carvone incorporated films.…”

Section: Smae 2016mentioning

confidence: 91%

Antifungal Poly(lactic acid) Films Containing Thymol and Carvone

et al. 2016

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Abstract. The goal of this study was to develop antifungal poly(lactic acid) films for food packaging applications. The antifungal compounds, thymol and R-(-)-carvone were incorporated into poly(lactic acid) (PLA)-based polymer at 10, 15 and 20% by weight. Film converting process consists of three steps including melt blending, sheet extrusion and biaxial stretching. The incorporation of antifungal compounds into the polymer matrix resulted in decreased T g and T m , increased gas permeabilility, reduced tensile strength and increased elongation at break of the antifungal PLA films.

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Section: Smae 2016mentioning

confidence: 91%

Antifungal Poly(lactic acid) Films Containing Thymol and Carvone

et al. 2016

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“…Blending with other natural polymers (with higher degradation rate) is recommended to overcome the low degradation rate of PLA. Due to low cost, abundance and availability from different botanical resources (Tester & Karkalas, is believed that the reaction between anhydride groups of PLA-g-MA and hydroxyl groups of starch can improve the interactions between two phases (Chapleau, Huneault, & Li, 2007;Li & Huneault, 2011;Orozco, Brostow, Chonkaew, & Lopez, 2009;Tachaphiboonsap & Jarukumjorn, 2013).…”

Section: Introductionmentioning

confidence: 99%

A new approach in compatibilization of the poly(lactic acid)/thermoplastic starch (PLA/TPS) blends

Akrami

Ghasemi

Azizi

et al. 2016

Carbohydrate Polymers

207

137

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a b s t r a c tIn this study, a new compatibilizer was synthesized to improve the compatibility of the poly(lactic acid)/thermoplastic starch blends. The compatibilizer was based on maleic anhydride grafted polyethylene glycol grafted starch (mPEG-g-St), and was characterized using Fourier transform infrared spectroscopy (FTIR), dynamic mechanical thermal analysis (DMTA) and back titration techniques. The results indicated successful accomplishment of the designed reactions and formation of a starch cored structure with many connections to m-PEG chains. To assess the performance of synthesized compatibilizer, several PLA/TPS blends were prepared using an internal mixer. Consequently, their morphology, dynamic-mechanical behavior, crystallization and mechanical properties were studied. The compatibilizer enhanced interfacial adhesion, possibly due to interaction between free end carboxylic acid groups of compatibilizer and active groups of TPS and PLA phases. In addition, biodegradability of the samples was evaluated by various methods consisting of weight loss, FTIR-ATR analysis and morphology. The results revealed no considerable effect of compatibilizer on biodegradability of samples.

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“…The modification of polymers by blending is a mature technology developed in the 70 ies or even earlier. A large number of papers and books were published on the topic [31][32][33][34][35][36][37][38][39][40][41][42][43], and the theoretical studies carried out mostly on commodity and engineering thermoplastics paved the way for industrial applications. The advent of biopolymers resulted in a revival of blending technology, as their several disadvantages can be overcome by blending.…”

Section: Introductionmentioning

confidence: 99%

“…The number of papers on the blending of biopolymers is vast, partly because of the huge number and wide diversity of these polymers and partly because of the increased interest in them. PLA and starch are the most often studied materials [36][37][38][39][40][41][42][43][44][45], but one could mention poly(3-hydroxybutyrate-co-3-hydroxyhexanoate)/poly(vinyl phenol) [46], thermoplastic phenol formaldehyde resin/poly(!-caprolactone) (PCL) [47], poly(3-hydroxybutyrate) (PHB)/PCL [48], PLA/poly(butylene succinate) (PBS) [49,50], poly(3-hydroxybutyrate-co-3-hydroxihexanoate)/poly (lactic acid) (PLA) [51], PHB/PLA [52], etc. without even attempting to be comprehensive.…”

Section: Introductionmentioning

confidence: 99%

Interactions, structure and properties in poly(lactic acid)/thermoplastic polymer blends

Imre

Renner

Pukánszky

2014

Express Polym. Lett.

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Abstract. Blends were prepared from poly(lactic acid) (PLA) and three thermoplastics, polystyrene (PS), polycarbonate (PC) and poly(methyl methacrylate) (PMMA). Rheological and mechanical properties, structure and component interactions were determined by various methods. The results showed that the structure and properties of the blends cover a relatively wide range. All three blends have heterogeneous structure, but the size of the dispersed particles differs by an order of magnitude indicating dissimilar interactions for the corresponding pairs. Properties change accordingly, the blend containing the smallest dispersed particles has the largest tensile strength, while PLA/PS blends with the coarsest structure have the smallest. The latter blends are also very brittle. Component interactions were estimated by four different methods, the determination of the size of the dispersed particles, the calculation of the Flory-Huggins interaction parameter from solvent absorption, from solubility parameters, and by the quantitative evaluation of the composition dependence of tensile strength. All approaches led to the same result indicating strong interaction for the PLA/PMMA pair and weak for PLA and PS. A general correlation was established between interactions and the mechanical properties of the blends.

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Biaxial Orientation of Polylactide/Thermoplastic Starch Blends

Cited by 52 publications

References 19 publications

Antifungal Poly(lactic acid) Films Containing Thymol and Carvone

Antifungal Poly(lactic acid) Films Containing Thymol and Carvone

A new approach in compatibilization of the poly(lactic acid)/thermoplastic starch (PLA/TPS) blends

Interactions, structure and properties in poly(lactic acid)/thermoplastic polymer blends

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