Journal of Materials Science

, Volume 52, Issue 9, pp 5449–5461 | Cite as

Polypropylene films with high barrier performance via crystal morphology manipulation

Original Paper


In this work, a simple and cost-effective method is proposed to prepare iPP films with high barrier properties. By adding a very small amount of β-nucleating agent, three types of β-crystal morphologies, namely, β-spherulites, β-transcrystals and β-“flower”-like agglomerates are sequentially obtained in iPP with the increasing processing temperature. Among β-nucleated iPP films, the one with β-“flower”-like agglomerates demonstrates the best water vapor and oxygen barrier performances, whose water permeability coefficient is decreased by 50.3% and oxygen permeability coefficient by 67.5%, compared to pure iPP films. Refined crystals, sufficient connection within the crystallites and lamellae parallel to the gas flow direction in iPP with β-“flower”-like agglomerates may force the gas molecules to take longer and more tortuous pathway, thus resulting in excellent barrier properties. Our work provides a new idea to prepare iPP films with high barrier properties by simply manipulating their crystal morphology.


Barrier Property Crystal Morphology Molding Temperature Barrier Performance Oxygen Transmission Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The authors gratefully acknowledge the financial support of this work by the National Natural Science Foundation of China (Nos. 51473135, 51503170, 51573147), the Opening State Key Laboratory of Polymer Materials Engineering (Sichuan University) (Grant No. sklpme2015-4-22) and the Fundamental Research Funds for the Central Universities (No. 3102016BJY01). The authors thank Shanghai Synchrotron Radiation Facility (SSRF) for supporting the X-ray measurements.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflicts of interest.


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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Department of Applied Chemistry, School of ScienceNorthwestern Polytechnical UniversityXi’anChina
  2. 2.Faculty of Printing, Packaging Engineering and Digital Media TechnologyXi’an University of TechnologyXi’anChina
  3. 3.College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengduChina

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