The Crystallization Behavior of L-Poly(lactic acid)/Polypropylene Blends: The Acceleration for Both L-Poly(lactic acid) and Polypropylene

Li, Shuang-Cheng; Zhou, Wei-Jia; Wu, Wen-Jie; Shao, Jun; Chen, Shui-Liang; Hou, Hao-Qing; Xiang, Sheng

doi:10.1007/s10118-024-3104-x

Chin J Polym Sci

2024

DOI: 10.1007/s10118-024-3104-x

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The Crystallization Behavior of L-Poly(lactic acid)/Polypropylene Blends: The Acceleration for Both L-Poly(lactic acid) and Polypropylene

Shuang-Cheng Li,

Wei-Jia Zhou,

Wen-Jie Wu

et al.

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2024

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Cited by 2 publications

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Effect of annealing treatment on impact toughness and crystallization behaviors of polypropylene/ethylene vinyl acetate copolymer/layered double hydroxide composites

Guo,

Lian,

Qin

et al. 2024

Polymer Composites

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This research endeavors to explore the potential of annealing treatment as a viable strategy to optimize the utilization of polypropylene (PP) composites, while preserving their exceptional properties. By incorporating ethylene vinyl acetate (EVA) copolymer and layered double hydroxide (LDH) into PP, this work meticulously analyzes the changes in crystallization behaviors and impact properties under varying annealing conditions. Impact strength is systematically assessed by a digital pendulum impact tester, whereas the crystalline structure is analyzed through polarized light optical microscopy (POM), differential scanning calorimetry (DSC), and x‐ray diffraction (XRD). The notch impact test exhibits a gradual increase in impact strength from 100 to 130°C, followed by a decline at 140°C. The XRD and DSC results elucidate subtle β‐crystal diffraction peaks for PP/EVA and PP/EVA/LDH composites, attributed to the transformative effect of EVA and LDH on PP crystals. POM analysis further unveils a reduction in spherical crystal size and gradual blurring of grain boundaries during the annealing process.Highlights PP/EVA/LDH composites are effectively regulated by changing the annealing treatment conditions. The crystallization behaviors and crystal structure of PP are induced due to synergistic effect of EVA and LDH under annealing treatment. The toughness of PP is enhanced significantly by synergistic effect of EVA and LDH under annealing treatment.

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Effect of annealing treatment on impact toughness and crystallization behaviors of polypropylene/ethylene vinyl acetate copolymer/layered double hydroxide composites

Guo,

Lian,

Qin

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

show abstract

Thermal, Morphological, Mechanical, and Biodegradation Properties of Poly(L-lactide)-b-poly(ethylene glycol)-b-poly(L-lactide)/High-Density Polyethylene Blends

Baimark,

Srihanam,

Srisuwan

2024

Polymers

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Polymer blends of poly(L-lactide)-b-poly(ethylene glycol)-b-poly(L-lactide) (PLLA-PEG-PLLA) and high-density polyethylene (HDPE) with different blend ratios were prepared by a melt blending method. The thermal, morphological, mechanical, opacity, and biodegradation properties of the PLLA-PEG-PLLA/HDPE blends were investigated and compared to the PLLA/HDPE blends. The blending of HDPE improved the crystallization ability and thermal stability of the PLLA-PEG-PLLA; however, these properties were not improved for the PLLA. The morphology of the blended films showed that the PLLA-PEG-PLLA/HDPE blends had smaller dispersed phases compared to the PLLA/HDPE blends. The PLLA-PEG-PLLA/HDPE blends exhibited higher flexibility, lower opacity, and faster biodegradation and bioerosion in soil than the PLLA/HDPE blends. Therefore, these PLLA-PEG-PLLA/HDPE blends have a good potential for use as flexible and partially biodegradable materials.

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The Crystallization Behavior of L-Poly(lactic acid)/Polypropylene Blends: The Acceleration for Both L-Poly(lactic acid) and Polypropylene

Cited by 2 publications

References 49 publications

Effect of annealing treatment on impact toughness and crystallization behaviors of polypropylene/ethylene vinyl acetate copolymer/layered double hydroxide composites

Effect of annealing treatment on impact toughness and crystallization behaviors of polypropylene/ethylene vinyl acetate copolymer/layered double hydroxide composites

Thermal, Morphological, Mechanical, and Biodegradation Properties of Poly(L-lactide)-b-poly(ethylene glycol)-b-poly(L-lactide)/High-Density Polyethylene Blends

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