Synchronously Enhancing Crystallization Ability and Mechanical Properties of the Polylactide Film <italic style="font-style: italic">via</italic> Incorporating Stereocomplex Crystallite Fibers

An-Yan Wang; Zhi-Xuan Zhang; De-Xiang Sun; Yong Wang

doi:10.1007/s10118-025-3323-9

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Synchronously Enhancing Crystallization Ability and Mechanical Properties of the Polylactide Film via Incorporating Stereocomplex Crystallite Fibers

RESEARCH ARTICLE | Updated：2025-04-29

- Synchronously Enhancing Crystallization Ability and Mechanical Properties of the Polylactide Film via Incorporating Stereocomplex Crystallite Fibers
- Synchronously Enhancing Crystallization Ability and Mechanical Properties of the Polylactide Film via Incorporating Stereocomplex Crystallite Fibers
- 高分子科学（英文） 2025年43卷第5期页码：793-807
- Affiliations：
  
  School of Chemistry, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Chengdu 610031, China
- Author bio：
  
  sundexiang@swjtu.edu.cn (D.X.S.)
  yongwang1976@swjtu.edu.cn (Y.W.)
- Funds：
  
  This work was financially supported by the Sichuan Science and Technology Program (No. 2023ZHCG0050), the China Postdoctoral Science Foundation (No. 2023M742883), the Science and Technology Innovation Fund for Basic Scientific Research Operating Expenses of Central Universities (No. 2682023CX002), and the New Interdisciplinary Cultivation Fund of SWJTU (No. 2682022KJ040). SEM characterizations were supported by the Analytical and Testing Center of Southwest Jiaotong University.;Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-025-3323-9.
- DOI：10.1007/s10118-025-3323-9
  中图分类号：
- 收稿日期：2024-11-16，
  
  修回日期：2025-01-20，
  
  录用日期：2025-02-20，
  
  网络出版日期：2025-04-08，
  
  纸质出版日期：2025-04-30
- Accepted：
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Wang, A. Y.; Zhang, Z. X.; Sun, D. X.; Wang, Y. Synchronously enhancing crystallization ability and mechanical properties of the polylactide film via incorporating stereocomplex crystallite fibers. Chinese J. Polym. Sci. 2025, 43, 793–807

An-Yan Wang, Zhi-Xuan Zhang, De-Xiang Sun, et al. Synchronously Enhancing Crystallization Ability and Mechanical Properties of the Polylactide Film via Incorporating Stereocomplex Crystallite Fibers[J]. Chinese journal of polymer science, 2025, 43(5): 793-807.
Wang, A. Y.; Zhang, Z. X.; Sun, D. X.; Wang, Y. Synchronously enhancing crystallization ability and mechanical properties of the polylactide film via incorporating stereocomplex crystallite fibers. Chinese J. Polym. Sci. 2025, 43, 793–807 DOI： 10.1007/s10118-025-3323-9.

An-Yan Wang, Zhi-Xuan Zhang, De-Xiang Sun, et al. Synchronously Enhancing Crystallization Ability and Mechanical Properties of the Polylactide Film via Incorporating Stereocomplex Crystallite Fibers[J]. Chinese journal of polymer science, 2025, 43(5): 793-807. DOI： 10.1007/s10118-025-3323-9.

摘要

SC crystallite fibers

as nucleating agent and reinforcing agent

will not sacrifice the transparency and degradation of PLLA

which provides a strategy for obtaining transparent PLLA-based composite films with synchronous enhancement of crystallization and mechanical properties.

Abstract

Poly(L-lactic acid) (PLLA) has been widely concerned because of its excellent biodegradability and biocompatibility. However

the poor crystallization ability of PLLA during the molding process not only leads to weak mechanical properties but also reduces the processing efficiency

which limits the application of PLLA greatly. Enhancing crystallization ability of PLLA

via

introducing inorganic nanoparticles usually sacrifices biodegradability or transparency. Here

the microfine fibers with stereocomplex (SC) crystallites were incorporated into PLLA film to tailor the crystallization ability of PLLA as well as the mechanical properties. The results confirmed that the crystallization ability of PLLA matrix under different circumstances could be greatly enhanced by a few amounts of

SC crystalline fibers

and synchronously enhanced tensile strength and ductility were also achieved

especially at relatively high temperature. Due to the relatively homogeneous dispersion of SC crystalline fibers and the similar refractive index between components

the PLLA-based film also exhibited high transparency

up to 85%-90% depending on the content of SC crystalline fibers. This work provides guidance for manufacturing transparent PLLA-based packaging materials with good crystallization capability and mechanical properties.

关键词

Keywords

references

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Synchronously Enhancing Crystallization Ability and Mechanical Properties of the Polylactide Film via Incorporating Stereocomplex Crystallite Fibers

Synchronously Enhancing Crystallization Ability and Mechanical Properties of the Polylactide Film via Incorporating Stereocomplex Crystallite Fibers

DOI：10.1007/s10118-025-3323-9

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