Construction of gas permeable channel in poly(l-lactic acid) membrane and its control of the micro atmosphere in okra packaging

Mica is a variety of filler material with excellent barrier properties. In the present study, mica‐AKD was successfully prepared by treating sericite mica surface with alkyl ketene dimer (AKD). The distribution and content of AKD in mica, the mode of its binding with mica and its surface properties were characterized by thermogravimetry, Soxhlet extraction, Fourier infrared analysis, the scanning electron microscope with energy spectrum and contact angle analysis. The results show that AKD was combined with mica through physical adsorption and chemical grafting, with the content of AKD in mica‐AKD exceeding 5 wt%. Due to AKD‐coated mica surface, mica‐AKD showed hydrophobicity. PCM and PCMa films were prepared by blending PBAT and PPC with mica and mica‐AKD, respectively. Given the same content, mica‐AKD has better compatibility with PBAT/PPC matrix, and PCMa films show better mechanical properties, lower water vapor permeability and oxygen permeability, and higher CDTR/OTR ratio, which has a good application prospect in fruit and vegetable preservation materials.

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Preparation of AKD‐coupled mica and research on the modification to poly(butylene adipate‐co‐terephthalate)/poly(propylene carbonate) composite films

Zhao

Chen

et al. 2023

Polymers for Advanced Techs

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Development of high barrier poly(l-actic acid)/chitosan/graphene oxide flexible films for meat packaging by layer-by-layer

Zhang,

Guan,

Zhang

et al. 2024

Food Bioscience

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Towards ductile and high barrier poly(L-lactic acid) ultra-thin packaging film by regulating chain structures for efficient preservation of cherry tomatoes

Liu

Sun

et al. 2023

International Journal of Biological Macromolecules

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Construction of gas permeable channel in poly(l-lactic acid) membrane and its control of the micro atmosphere in okra packaging

Cited by 6 publications

References 42 publications

Preparation of AKD‐coupled mica and research on the modification to poly(butylene adipate‐co‐terephthalate)/poly(propylene carbonate) composite films

Preparation of AKD‐coupled mica and research on the modification to poly(butylene adipate‐co‐terephthalate)/poly(propylene carbonate) composite films

Development of high barrier poly(l-actic acid)/chitosan/graphene oxide flexible films for meat packaging by layer-by-layer

Towards ductile and high barrier poly(L-lactic acid) ultra-thin packaging film by regulating chain structures for efficient preservation of cherry tomatoes

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