Localization of micro- and nano-silica particles in heterophase poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends

Dil, Ebrahim Jalali; Favis, Basil D.

doi:10.1016/j.polymer.2015.08.046

Cited by 103 publications

(51 citation statements)

References 61 publications

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“…It should be noted that PA10‐12 was not evaluated due to the high viscosity of this PA grade. The surface tension of PLA is clearly lower than all PA (γ s 21.9 mN/m) in agreement with several studies on the PLA surface tension at elevated temperatures . Surface tensions of PLA and PA12 were subsequently found to be the closest (γ s‐PLA – γ sPA12 = 5.6 mN/m) compared with PLA/PA associations.…”

Section: Resultssupporting

confidence: 89%

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: 89%

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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“…However, near 2q ¼ 2, it seems that the situation is reversed. The surface energy data of Jalali et al [42] suggest slightly better compatibility with PBAT, as seen from the interfacial tension values of Table 1, but the difference is probably marginal. The TEM images of Fig.…”

Section: Compatibility Of Blend Nanocomposite Components and Localizamentioning

confidence: 83%

Effects of nanoclay and its localization on the morphology stabilization of PLA/PBAT blends under shear flow

Nofar

Heuzey

Carreau

et al. 2016

Polymer

109

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“…But more tubes weakened the interface adhesion because MMT agglomerated into bundles positioning parallel to the interface and blocked the chain entanglements. Thus, the dispersion of particles can effectively improve the compatibility of PLA and PBAT (28,29). However, more details should be researched on the crystallization, morphology, and properties of the blends.…”

Section: Introductionmentioning

confidence: 99%

Effect of talc and diatomite on compatible, morphological, and mechanical behavior of PLA/PBAT blends

et al. 2021

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Biodegradable nanocomposites were prepared by melt blending biodegradable poly(lactic acid) (PLA) and poly(butylene adipate-co-butylene terephthalate) (PBAT) (70/30, w/w) with diatomite or talc (1–7%). From the SEM test, the particles were transported to the interface of two phases, which acted as an interface modifier to strengthen the interfacial adhesion between PLA and PBAT. Talc and diatomite acted as nucleating agents to improve the crystallization of PBAT in the blends by DSC analysis. Moreover, adding the particles improved the tensile and impact toughness of the blends. The elongation at break with 5% talc was 78% (vs ∼21%) and the impact strength was 15 kJ/m2 (vs ∼6.5 kJ/m2). The rheological measurement revealed that the talc and diatomite reduced the viscosity of the blends. The results showed a good possibility of using talc- and diatomite-filled PLA/PBAT blends with high toughness for green-packaging and bio-membranes application.

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Localization of micro- and nano-silica particles in heterophase poly(lactic acid)/poly(butylene adipate-co-terephthalate) blends

Cited by 103 publications

References 61 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

Effects of nanoclay and its localization on the morphology stabilization of PLA/PBAT blends under shear flow

Effect of talc and diatomite on compatible, morphological, and mechanical behavior of PLA/PBAT blends

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