Effect of mixing strategy on thermal and mechanical properties of poly(butylene adipate-co-terephthalate)/poly(lactic acid) incorporated with CaCO3 fillers

Xie, Jiaxiang

doi:10.1007/s10965-023-03618-5

Cited by 4 publications

(1 citation statement)

References 32 publications

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“…There were several possible explanations for this result. Firstly, the formation of athermal crystallization might result in the decreased of n value [55]. Secondly, the addition of SAG could promote PLA molecular chains to generate branch structures, which made the crystal nucleation occurred under geometric constraints [56].…”

mentioning

confidence: 99%

Crystallization behaviors of chain extended poly (lactic acid) modified with ST-NAB3 and its improved mechanical and thermal properties

Dun,

Zhu,

Zhou

et al. 2024

Preprint

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The widespread use of traditional petroleum-based plastics is causing significant environmental pollution for example microplastics issues, due to its non-biodegradability. Poly (lactic acid) (PLA) as a representative biodegradable polymer is a promising candidate to replace petroleum-based plastics in some fields of disposable packaging materials and tableware. In this work, in order to improve the poor crystallization, mechanical and heat resistance performances of PLA, styrene-acrylonitrile-glycidyl methacrylate (SAG) as a chain extender and octamethylenedicarboxylic dibenzoylhydrazide (ST-NAB3) as a heterogeneous nucleating agent (HNA) were added simultaneously into PLA matrix. The chain-extended PLA (CPLA) with branch structures had smaller crystal sizes and higher crystal density, compared with those of pure PLA. In addition, thanks to the nucleation effect of ST-NAB3 and the development of “shish-kebab”, this tendency became more pronounced in CPLA/HNA systems. It was worth mentioning that, CPLA with the ST-NAB3 content of 1 wt.% (CPLA-1) possessed the highest crystallinity of 43.6%. Meanwhile, CPLA-1 had the best impact strength and heat deformation temperature of 38.9 kJ/m2 and 91.3°C respectively, which had increased by 11.3 kJ/m2 and 32.4°C contrast to pure PLA. On the whole, this study proposed a simple and effective method, which provided a new possibility for PLA modification research.

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mentioning

confidence: 99%

Crystallization behaviors of chain extended poly (lactic acid) modified with ST-NAB3 and its improved mechanical and thermal properties

Dun,

Zhu,

Zhou

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

Crystallization behaviors of chain extended poly (lactic acid) modified with ST‐NAB3 and its improvement for mechanical and thermal properties

Dun,

Zhang,

Zhu

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

The widespread use of traditional petroleum‐based plastics is causing significant environmental pollution for example microplastics issues, due to its non‐biodegradability. Poly (lactic acid) (PLA) as a representative biodegradable polymer is a promising candidate to replace petroleum‐based plastics in some fields of disposable packaging materials and tableware. In this work, in order to improve the poor crystallization, mechanical and heat resistance performances of PLA, styrene–acrylonitrile‐glycidyl methacrylate (SAG) as a chain extender and octamethylenedicarboxylic dibenzoylhydrazide (ST‐NAB3) as a heterogeneous nucleating agent (HNA) were added simultaneously into PLA matrix. The chain‐extended PLA (CPLA) with branch structures had smaller crystal sizes and higher crystal density, compared with those of pure PLA. In addition, thanks to the nucleation effect of ST‐NAB3 and the development of “shish‐kebab”, this tendency became more pronounced in CPLA/HNA systems. It was worth mentioning that, CPLA with the ST‐NAB3 content of 1 wt% (CPLA‐1) possessed the highest crystallinity of 43.6%. Meanwhile, CPLA‐1 had the best impact strength and heat deformation temperature of 38.9 kJ/m2 and 91.3°C respectively, which had increased by 11.3 kJ/m2 and 32.4°C contrast to pure PLA. On the whole, this study proposed a simple and effective method, which provided a new possibility for PLA modification research.

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Effect of chain extender on the morphological, rheological and mechanical properties of biodegradable blends from PBAT and P34HB

Li,

Cheng,

et al. 2023

J Polym Res

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Effect of mixing strategy on thermal and mechanical properties of poly(butylene adipate-co-terephthalate)/poly(lactic acid) incorporated with CaCO3 fillers

Cited by 4 publications

References 32 publications

Crystallization behaviors of chain extended poly (lactic acid) modified with ST-NAB3 and its improved mechanical and thermal properties

Crystallization behaviors of chain extended poly (lactic acid) modified with ST-NAB3 and its improved mechanical and thermal properties

Crystallization behaviors of chain extended poly (lactic acid) modified with ST‐NAB3 and its improvement for mechanical and thermal properties

Effect of chain extender on the morphological, rheological and mechanical properties of biodegradable blends from PBAT and P34HB

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