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

Ferri, José Miguel; Samper, María Dolores; Sanoguera, David García; Reig, M. J.; Fenollar, O.; Balart, Rafael

doi:10.1007/s10853-016-9838-2

Cited by 80 publications

(74 citation statements)

References 39 publications

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“…Higher plasticizer content (>5 phr) leads to a slight decrease in the maximum value reached at 5 phr for both plasticizers. This behavior is similar to that reported by Ferri et al in which the elongation at break and the impact resistance of PLA was remarkably improved by 370 and 75% respectively with the addition of 5 phr EFAE plasticizer. Over this plasticizer content, a decrease in mechanical ductile properties occurs due to plasticizer saturation.…”

Section: Resultssupporting

confidence: 91%

“…For low plasticizer content (5 phr), mechanical resistant properties do not decrease in a great extent, reaching tensile strength values of 18.7 and 19.0 MPa for MLO and EFAE plasticized P3HB formulations respectively. Ferri et al described a similar tendency by adding EFAE to poly(lactic acid) with a decrease in tensile strength with increasing plasticizer content. Regarding the elastic modulus, it decreases to values of 1600 MPa for both plasticized systems.…”

Section: Resultsmentioning

confidence: 78%

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Improvement of Mechanical Ductile Properties of Poly(3-hydroxybutyrate) by Using Vegetable Oil Derivatives

Garcia‐Garcia

Fenollar

Fombuena

et al. 2016

Macromol. Mater. Eng.

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Poly(3‐hydroxybutyrate), P3HB is a thermoplastic polyester synthesized from bacterial fermentation with potential uses in packaging due to its biodegradability. Nevertheless, P3HB is a fragile material and its processing temperature window is very narrow which restricts its use. This study explores the potential of vegetable oil‐derived plasticizers, i.e., maleinized linseed oil (MLO) and an epoxidized fatty acid ester (EFAE) in the 5–20 phr range as environmentally friendly solutions for P3HB industrial formulations with improved toughness. The results show that optimum balance between ductile properties is achieved with low plasticizer content (5 phr) for both plasticizer types. Elongation at break and the impact resistance are increased by 28 and 71% respectively after addition of 5 phr MLO. With regard to EFAE, the elongation at break is improved by 40% and the impact resistance is increased to twice the value of P3HB. Another effect that both plasticizers provide is the thermal stabilization with a delay in the onset degradation temperature.

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Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 78%

Improvement of Mechanical Ductile Properties of Poly(3-hydroxybutyrate) by Using Vegetable Oil Derivatives

Garcia‐Garcia

Fenollar

Fombuena

et al. 2016

Macromol. Mater. Eng.

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“…29,35 The change in the glass transition temperature (T g ) is more clearly detectable by analyzing the evolution of the damping factor (tan d) with temperature ( Figure 6). During the cold crystallization, amorphous domains in PLA tend to rearrange in a packed structure to form crystalline zones that contribute to increase its mechanical resistance and rigidity (almost twofold higher regarding the minimum values achieved after the glass transition relaxation).…”

Section: Effect Of Tps Content On Dynamic-mechanical Thermalmentioning

confidence: 99%

“…Summary of Compositions and Labeling of PLA/TPS Formulations plasticizer in PLA formulations led to lower tensile strength values by26.3% with regard to neat PLA. Moreover, they reported a decrease in Young's modulus of EPO-plasticized PLA of 7% by adding 5 wt % EPO 29. Despite this decrease in mechanical resistant properties for PLA/TPS blends with high TPS content, both tensile strength and modulus are still superior to most commodity plastics.…”

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confidence: 99%

Poly(lactic acid) formulations with improved toughness by physical blending with thermoplastic starch

Ferri

Garcia‐Garcia

Carbonell‐Verdu

et al. 2017

J of Applied Polymer Sci

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This work focuses on poly(lactic acid) (PLA) formulations with improved toughness by physical blending with thermoplastic maize starch (TPS) plasticized with aliphatic-aromatic copolyester up to 30 wt %. A noticeable increase in toughness is observed, due to the finely dispersed spherical TPS domains in the PLA matrix. It is worth to note the remarkable increase in the elongation at break that changes from 7% (neat PLA) up to 21.5% for PLA with 30 wt % TPS. The impact-absorbed energy is markedly improved from the relatively low values of neat PLA (1.6 J m 22 ) up to more than three times. Although TPS is less thermally stable than PLA due to its plasticizer content, in general, PLA/TPS blends offer good balanced thermal stability. The morphology reveals high immiscibility in PLA/TPS blends, with TPS-rich domains with an average size of 1 lm, finely dispersed which, in turn, is responsible for the improved toughness.

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“…antioxidants, plasticizers, fillers, etc. [7][8][9][10]. With the increasing development of nanotechnology, many research works have been focused of using nanostructures to improve the properties of PLA-based materials [11][12][13] and interactions.…”

Section: Introductionmentioning

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

Cited by 80 publications

References 39 publications

Improvement of Mechanical Ductile Properties of Poly(3-hydroxybutyrate) by Using Vegetable Oil Derivatives

Improvement of Mechanical Ductile Properties of Poly(3-hydroxybutyrate) by Using Vegetable Oil Derivatives

Poly(lactic acid) formulations with improved toughness by physical blending with thermoplastic starch

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

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