Blending modification of PBS/PLA and its enzymatic degradation

Hu, Xueyan; Su, Tingting; Li, Ping; Wang, Zhanyong

doi:10.1007/s00289-017-2054-7

Cited by 78 publications

(41 citation statements)

References 37 publications

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“…Reactive compatibilization is considered to be a method for suppressing the phase separation and improving the compatibility of immiscible polymer blends [42,43,44]. In the mixing process, reactive compatibilizers react with both blend components to couple the phases within a short processing time [28], thereby enhancing the compatibility and interfacial interactions of the blends [45].…”

Section: Toughness Modificationmentioning

confidence: 99%

“…They must be distributed at a high rate in the polymer melt during blending [28]. A large number of reactive compatibilizers for PLA/PBS blends have been reported, for example diphenyl diisocyanate (MDI) [46], lysine triisocyanate (LTI) [42], lysine diisocyanate (LDI) [42], glycidyl methacrylate (GMA) [47], dicumyl peroxide (DCP) [16,44,48], benzoyl peroxide (BPO) [43], organoclays and epoxy functionality-containing components [49], epoxy functionality-containing components (Joncryl TM ) [24].…”

Section: Toughness Modificationmentioning

confidence: 99%

“…While achieving improved toughness and crystallization, the modified PLA/PBS blends should reserve the biodegradability [43].…”

Section: Degradationmentioning

confidence: 99%

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Polylactide (PLA) and Its Blends with Poly(butylene succinate) (PBS): A Brief Review

et al. 2019

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Polylactide (PLA), poly(butylene succinate) (PBS) and blends thereof have been researched in the last two decades due to their commercial availability and the upcoming requirements for using bio-based chemical building blocks. Blends consisting of PLA and PBS offer specific material properties. However, their thermodynamically favored biphasic composition often restricts their applications. Many approaches have been taken to achieve better compatibility for tailored and improved material properties. This review focuses on the modification of PLA/PBS blends in the timeframe from 2007 to early 2019. Firstly, neat polymers of PLA and PBS are introduced in respect of their origin, their chemical structure, thermal and mechanical properties. Secondly, recent studies for improving blend properties are reviewed mainly under the focus of the toughness modification using methods including simple blending, plasticization, reactive compatibilization, and copolymerization. Thirdly, we follow up by reviewing the effect of PBS addition, stereocomplexation, nucleation, and processing parameters on the crystallization of PLA. Next, the biodegradation and disintegration of PLA/PBS blends are summarized regarding the European and International Standards, influencing factors, and degradation mechanisms. Furthermore, the recycling and application potential of the blends are outlined.

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Section: Toughness Modificationmentioning

confidence: 99%

Section: Toughness Modificationmentioning

confidence: 99%

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Polylactide (PLA) and Its Blends with Poly(butylene succinate) (PBS): A Brief Review

et al. 2019

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“…However, it was interestingly enough to note that the pure PLA lost a maximum weight of 21%, while the introduction of PGO‐PLLA resulted in a weight loss rate of 12%, which significantly inhibited the degradation of PLA. Hu et al found that the PLA was not degraded completely because of the crosslink between poly(butylene succinate) (PBS) and PLA. This might be due to the fact that the oxygen‐containing functional groups on the surface of PGO‐PLLA formed strong hydrogen bonds with PLA, which enhanced the binding between the PLA molecular chains and ultimately hindered the degradation of the blend by proteinase K.…”

Section: Resultsmentioning

confidence: 99%

Preparation and characterization of phosphorylated graphene oxide grafted with poly(L‐lactide) and its effect on the crystallization, rheological behavior, and performance of poly (lactic acid)

Yang

Zhen

2019

Polymers for Advanced Techs

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Phosphorylated graphene oxide (PGO) was prepared by using phosphoric acid as functional reagent, and PGO was grafted with poly(L‐lactide) (PGO‐PLLA) by ring‐opening polymerization of L‐lactide as monomer under nano‐ZnO catalyst. The results of the orthogonal analysis showed the optimum reaction conditions to be as follows: the reaction temperature of 170°C, reaction time of 14 hours, the mass ratio of PGO of 10 wt%, and the mass of nano‐ZnO of 1 wt%. PGO‐PLLA was characterized by fourier transform infrared spectroscopy, gel permeation chromatography, and X‐ray photoelectron spectroscopy, which demonstrated that the PLLA molecular chains were successfully grafted onto the surface of PGO. Poly (lactic acid)/PGO‐PLLA nanocomposites (PLA/PGO‐PLLA) were prepared by melt intercalation. Mechanical test and fracture scanning electron microscopy showed that PGO‐PLLA (0.3 wt%) improved impact strength of PLA by 52.19%, which resulted in ductile fractures surface of PLA/PGO‐PLLA. Microcalorimetry and thermal degradation kinetics proved that PGO‐PLLA improved the thermal stability of PLA. Polarized optical microscopy and differential scanning calorimetry confirmed that PGO‐PLLA increased crystallization rate and spherulite kernel density of PLA, and crystallinity of PLA/PGO‐PLLA reached to 22.05%. Rheological behavior proved that PGO‐PLLA increased the self‐lubricity of PLA. Enzymatic degradation results illustrated that PGO‐PLLA had some inhibition for the biodegradability of PLA based nanocomposites.

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“…A wide variety of PLA-based binary blends have been proposed to improve toughness of PLA. It is worthy to note the interesting properties of PLA blends with poly(-caprolactone) -PCL [30][31][32][33], poly(hydroxybutyrate) -PHB [1,34], poly(hydroxybutyrate-co-valerate) -PHBV [35][36][37], thermoplastic starches -TPSs [38,39], poly(butylene adipate-coterephthalate) -PBAT [40], poly(butylene succinate) -PBS [41][42][43] -PBSA, poly(butylene succinate-co-adipate) [44] and so on. As indicated previously, rubber or rubber-like polymers have been proposed as impact modifiers in polymer and composites systems with remarkable positive effects on overall toughness [45].…”

Section: Introductionmentioning

confidence: 99%

High toughness poly(lactic acid) (PLA) formulations obtained by ternary blends with poly(3-hydroxybutyrate) (PHB) and flexible polyesters from succinic acid

et al. 2018

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Blending modification of PBS/PLA and its enzymatic degradation

Cited by 78 publications

References 37 publications

Polylactide (PLA) and Its Blends with Poly(butylene succinate) (PBS): A Brief Review

Polylactide (PLA) and Its Blends with Poly(butylene succinate) (PBS): A Brief Review

Preparation and characterization of phosphorylated graphene oxide grafted with poly(L‐lactide) and its effect on the crystallization, rheological behavior, and performance of poly (lactic acid)

High toughness poly(lactic acid) (PLA) formulations obtained by ternary blends with poly(3-hydroxybutyrate) (PHB) and flexible polyesters from succinic acid

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