Combined Effect of Poly(hydroxybutyrate) and Plasticizers on Polylactic acid Properties for Film Intended for Food Packaging

Arrieta, Marina P.; Samper, María Dolores; López, Juan; Jiménez, Alfonso

doi:10.1007/s10924-014-0654-y

Cited by 180 publications

(222 citation statements)

References 50 publications

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“…The crystallinity degree of both PHB (X c, PHB ) and PCL (X c, PCL ) in the blends was calculated by following Eq. (1) where H m is the fusion enthalpy and H 0 is the enthalpy related to the corresponding 100 % crystallinity (theoretical value) polymer; these values were assumed as 146 J g -1 [1] for PHB and 156.8 J g -1 [3] for PCL. Finally, "w" represents the weight fraction of PHB and PCL in each PHB-PCL blend.…”

Section: Phb-pcl Blend Preparationmentioning

confidence: 99%

“…An important fraction of these wastes are incinerated or poured into controlled landfills because of technical or economical reasons thus leading to important environmental problems such as waste removal from environment, soil contamination or toxic gas emissions coming from incineration processes. This acts as leading force to the study, development and use of biobased and/or biodegradable polymers characterized by low environmental impact [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

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Processing and characterization of binary poly(hydroxybutyrate) (PHB) and poly(caprolactone) (PCL) blends with improved impact properties

et al. 2016

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2 AbstractThe present work is focused on the development of binary blends from poly(hydroxybutyrate) (PHB) and poly(caprolactone) (PCL). Miscibility, mechanical and thermal properties as well as blends morphology are evaluated in terms of the blend composition. Binary PHB-PCL blends were manufactured by melt compounding in a twin screw co-rotating extruder and injection molded. Composition of PHB-PCL covered the full range between individual polymers at 25 wt% increments. The obtained results show that PCL acts as an impact modifier thus leading to an increase in flexibility and ductility as the PCL content on PHB-PCL blends increases with a noticeable increase in elongation at break and on

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Section: Phb-pcl Blend Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Processing and characterization of binary poly(hydroxybutyrate) (PHB) and poly(caprolactone) (PCL) blends with improved impact properties

et al. 2016

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“…The oxygen transmission rate (OTR) of neat is around 44.4 ± 0.9 cm 3 ·mm·m -2 ·d -1 [40,41] while the OTR for the OES plasticized PLA film is 23.2 ± 0.2 cm 3 ·mm·m -2 ·d -1 . The lower oxygen transmission rate is due to increased crystallinity.…”

Section: Figurementioning

confidence: 99%

Plasticizing effect of biobased epoxidized fatty acid esters on mechanical and thermal properties of poly(lactic acid)

et al. 2016

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Poly(lactic acid)-PLA is a polyester that can be produced from lactic acid derived from renewable resources. This polymer offers attracting uses in packaging industry due to its biodegradability and high tensile strength. However, PLA is quite brittle, which limits its applications. To overcome this drawback, PLA was plasticized with epoxy-type plasticizer derived from a fatty acid, octyl epoxy stearate (OES) at different loading (1, 3, 5, 10, 15 and 20 phr). The addition of OES decreases the glass transition temperature and provides a remarkable increase in elongation at break and impact absorbed energy.Plasticizer saturation occurs at relatively low concentrations of about 5 phr OES; higher concentration leads to phase separation as observed by field emission scanning electron microscopy (FESEM). Optimum balanced mechanical properties are obtained at relatively low concentrations of OES (5 phr) thus indicating the usefulness of this material as environmentally friendly plasticizer for PLA industrial formulations.

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“…A wide variety of binary and ternary blends with PLA have been proposed as a technical solution to improve toughness. Among others, it is worthy to note some interesting PLAbased blends with poly(ε-caprolactone)(PCL) [16], thermoplastic starch (TPS) [17], poly(butylene succinate) (PBS) [18], poly(butylene succinate-co-adipate) (PBSA) [19], poly(glycolic acid) (PGA) [20], poly(hydroxybutyrate) (PHB) [21], poly(hydroxybutyrate-co-valerate) (PHBV) [22], poly(butylene adipate-co-terephthalate) (PBAT) [23], etc. Ternary blends allow obtaining tailored properties in PLAbased blends [24,25].…”

mentioning

confidence: 99%

Manufacturing and compatibilization of PLA/PBAT binary blends by cottonseed oil-based derivatives

Carbonell‐Verdu¹,

Ferri²,

Dominici³

et al. 2018

Express Polym. Lett.

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Abstract. This research work aims at the compatibilization of poly(lactic acid)/poly(butylene adipate-co-terephthalate), PLA/PBAT binary blends by using cottonseed oil derivatives, i.e. epoxidized (ECSO) and maleinized (MCSO) cottonseed oil. The potential of these vegetable oil-based compatibilizers are compared versus the effects of a conventional styreneacrylic oligomer. The base PLA/PBAT binary blend composition was 80 wt% PLA/20 wt% PBAT and the amount of compatibilizer was set to 1 and 7.5 wt%. The effects of the different compatibilizers were evaluated on PLA/PBAT films in terms of mechanical and thermal properties as well as blend's morphology by field emission scanning electron microscopy (FESEM). Complementary, biodisintegration tests in controlled compost soil and surface properties were evaluated to assess the effects of the compatibilizers. Addition of 1 wt% ECSO and MCSO led to a remarkable increase in the elongation at break up to values over 100% with regard to neat PLA. Despite this, maximum elongation at break was obtained for the compatibilized PLA/PBAT blend with 7.5 wt% MCSO, reaching values of about 321.2% respect neat PLA keeping mechanical resistant properties, such as Young's modulus and tensile strength, at high levels. Therefore, vegetable oil-derived compatibilizers stand out as environmentally friendly additives for PLA/PBAT binary blends with improved properties.

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Combined Effect of Poly(hydroxybutyrate) and Plasticizers on Polylactic acid Properties for Film Intended for Food Packaging

Cited by 180 publications

References 50 publications

Processing and characterization of binary poly(hydroxybutyrate) (PHB) and poly(caprolactone) (PCL) blends with improved impact properties

Processing and characterization of binary poly(hydroxybutyrate) (PHB) and poly(caprolactone) (PCL) blends with improved impact properties

Plasticizing effect of biobased epoxidized fatty acid esters on mechanical and thermal properties of poly(lactic acid)

Manufacturing and compatibilization of PLA/PBAT binary blends by cottonseed oil-based derivatives

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