Poly (lactic acid) blends: Processing, properties and applications

Nofar, Mohammadreza; Sacligil, Dilara; Carreau, Pierre J.; Kamal, Musa R.; Heuzey, Marie‐Claude

doi:10.1016/j.ijbiomac.2018.12.002

Cited by 594 publications

(434 citation statements)

References 679 publications

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“…Young's modulus, stress at yield, and strain at break were evaluated from tensile tests and their evolutions with the amount of PA (by weight) are tabulated in Supporting Information Table S3 and S4 and Figure , respectively. PLA is a brittle polymer with poor ductility (strain at break 3.4%) and high stiffness (Young's modulus 2885 MPa and stress at yield 66.6 MPa) in accordance with many reports on PLA mechanical properties . Mechanical properties of PLA are obviously improved upon blending with PA12HV with a clear brittle‐to‐ductile transition for PA12HV content higher than 30 wt % (Figure ).…”

Section: Resultssupporting

confidence: 85%

“…Poly(L‐lactide) (PLA) is one of the most promising biobased polymers due to its inherent renewability, biodegradability, good transparency, high modulus, and biocompatibility . These pronounced properties make PLA a potential replacement for many of the engineering polymers.…”

Section: Introductionmentioning

confidence: 99%

“…Some of the already implemented applications include resorbable sutures, textiles, food and beverage containers, coated papers, and other molded articles . However, there are few disadvantages in PLA such as low ductility, low heat deflection temperature (HDT), and poor barrier properties that clearly restrict PLA market penetration into high‐added value applications (automotive, electronics, and smart applications) . Polymer blends processed by extrusion technologies represents one of the most effective approaches to overcome these limitations at reasonable development costs and, in this respect, various PLA‐based complex formulations with polyethylene, aliphatic polyesters, polyamides (PAs), or polycarbonates were successfully developed …”

Section: Introductionmentioning

confidence: 99%

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Compatibility in biobased poly(L‐lactide)/polyamide binary blends: From melt‐state interfacial tensions to (thermo)mechanical properties

Raj

Prashantha

Samuel

2019

J of Applied Polymer Sci

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The melt compatibility between poly(L-lactide) (PLA) and polyamides (PAs) with related thermomechanical properties is addressed. A particular attention is paid to four commercial PAs with extrusion processing temperatures close to PLA (PA10-10 to PA12). PLA/PA blend morphologies without a compatibilizer are first revealed by scanning electron microscopy. PA12 displays the best droplet dispersion into PLA (D n 700 nm), whereas a poor interfacial adhesion is attested for PLA/PA10-10 blends. Interfacial tensions corroborate the PLA/PA10-10 incompatibility (γ 12 9 mN/m, 240 C) with decreasing γ 12 in the order PLA/PA10-10 > PLA/PA11 > PLA/PA12 (γ 12 2 mN/m). Surface tensions confirm the highest compatibility between PLA and PA12. Ductilities, toughnesses, and thermal resistances of PLA/PA blends are evaluated up to 40-wt % PA. Brittle-to-ductile transitions are observed for PA content higher than 30-wt % with the highest ductility for PLA/PA12, in accordance with their enhanced compatibility. Impact strengths display similar trends with a twofold increase for PLA/PA12. An outstanding synergy between PLA and PA is highlighted by dynamic mechanical analyses with heat deflection up to 130 C for PLA/PA blends. The synergy arises from a peculiar crystallization of PLA in the presence of PA. PLA/PA morphologies/interfaces can be consequently tuned by an appropriate PA choice with interesting improvements of thermomechanical properties for high-performance/durable applications.

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Section: Resultssupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Compatibility in biobased poly(L‐lactide)/polyamide binary blends: From melt‐state interfacial tensions to (thermo)mechanical properties

Raj

Prashantha

Samuel

2019

J of Applied Polymer Sci

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“…While PLA and PCL are immiscible their interaction lead to formation of specific morphology of uniformly distributed spherical structures within the PLA matrix, ultimately decreasing the stiffness of the resulting blend compared to neat PLA [1]. For the various PLA-based blends characteristics and potential applications, read a recent review by Nofar and colleagues [253].…”

Section: Polylactic Acidmentioning

confidence: 99%

Recent Advances in Bioplastics: Application and Biodegradation

et al. 2020

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The success of oil-based plastics and the continued growth of production and utilisation can be attributed to their cost, durability, strength to weight ratio, and eight contributions to the ease of everyday life. However, their mainly single use, durability and recalcitrant nature have led to a substantial increase of plastics as a fraction of municipal solid waste. The need to substitute single use products that are not easy to collect has inspired a lot of research towards finding sustainable replacements for oil-based plastics. In addition, specific physicochemical, biological, and degradation properties of biodegradable polymers have made them attractive materials for biomedical applications. This review summarises the advances in drug delivery systems, specifically design of nanoparticles based on the biodegradable polymers. We also discuss the research performed in the area of biophotonics and challenges and opportunities brought by the design and application of biodegradable polymers in tissue engineering. We then discuss state-of-the-art research in the design and application of biodegradable polymers in packaging and emphasise the advances in smart packaging development. Finally, we provide an overview of the biodegradation of these polymers and composites in managed and unmanaged environments.

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“…However, additional colorant particles will significantly influence fiber properties, which was more serious in PLA fiber due to its semicrystalline property. Most research studies were focused on functionalization particle surface via physical or chemical methods, in order to improve the compatibility of particle in polymer matrices and lower the impact of particle on ordering of polymer molecules . Besides that, the properties such as viscosity, heat, and mechanical properties of composites material depended strongly on the interfacial structure, particle size, dispersibility, and other factors …”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of carbon black modified by polylactic acid (PLA‐g‐CB) as pigment for dope dyeing of black PLA fibers

Zhang

Wang

et al. 2019

J of Applied Polymer Sci

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Dope dyeing is a clean method to produce a color polylactic acid (PLA) fiber. In order to investigate the influence factors of dope dyed PLA fiber, three kinds of PLA modified carbon black (PLA‐g‐CB) pigments with different particle size were prepared by open‐ring polymerization method, which were further used for dope dyed black PLA fiber. The resultant black fiber was characterized by TEM, SEM, and DSC. The effect of particle size and concentration of PLA‐g‐CB pigments on color, mechanical property, and crystallization behavior of dope dyed PLA fiber were studied. Dope dyed black PLA fiber reached its good color property including K/S and leveling property when PLA‐g‐CB (I) pigment was the colorant with a concentration of 1.5%. Moreover, the dope dyed black PLA fiber containing PLA‐g‐CB (I) pigment had high breaking strength, crystallinity, fastness, and migration resistance to water and ethanol. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48784.

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Poly (lactic acid) blends: Processing, properties and applications

Cited by 594 publications

References 679 publications

Compatibility in biobased poly(L‐lactide)/polyamide binary blends: From melt‐state interfacial tensions to (thermo)mechanical properties

Compatibility in biobased poly(L‐lactide)/polyamide binary blends: From melt‐state interfacial tensions to (thermo)mechanical properties

Recent Advances in Bioplastics: Application and Biodegradation

Synthesis and characterization of carbon black modified by polylactic acid (PLA‐g‐CB) as pigment for dope dyeing of black PLA fibers

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