Tailoring End-Use Properties of Polypropylene through a Combination of Specific Nucleation and Long-Chain Branching

Lenka Gajzlerova; Jana Navratilova; Martina Polaskova; Lubomir Benicek; David Jaska; Sona Zenzingerova; Roman Cermak

doi:10.1007/s10118-024-3234-1

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Tailoring End-Use Properties of Polypropylene through a Combination of Specific Nucleation and Long-Chain Branching

RESEARCH ARTICLE | Updated：2024-11-07

- Tailoring End-Use Properties of Polypropylene through a Combination of Specific Nucleation and Long-Chain Branching
- Chinese Journal of Polymer Science Vol. 42, Pages: 1-9(2024)
- Affiliations：
  
  a.Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 76001 Zlin, Czech Republic
  b.The Centre of Polymer Systems, Tomas Bata University in Zlin, trida Tomase Bati 5678, 76001 Zlin, Czech Republic
- Author bio：
  
  j1navratilova@utb.cz
- Funds：
- DOI：10.1007/s10118-024-3234-1
  CLC：
- Published：2024-09，
  
  Published Online：07 November 2024，
  
  Received：24 July 2024，
  
  Revised：15 August 2024，
  
  Accepted：07 September 2024
- Accepted：
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Gajzlerova, L.; Navratilova, J.; Polaskova, M.; Benicek, L.; Jaska, D.; Zenzingerova, S.; Cermak, R. Tailoring end-use properties of polypropylene through a combination of specific nucleation and long-chain branching. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-024-3234-1

Lenka Gajzlerova, Jana Navratilova, Martina Polaskova, et al. Tailoring End-Use Properties of Polypropylene through a Combination of Specific Nucleation and Long-Chain Branching. [J/OL]. Chinese Journal of Polymer Science, 2024,421-9.
Gajzlerova, L.; Navratilova, J.; Polaskova, M.; Benicek, L.; Jaska, D.; Zenzingerova, S.; Cermak, R. Tailoring end-use properties of polypropylene through a combination of specific nucleation and long-chain branching. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-024-3234-1 DOI：

Lenka Gajzlerova, Jana Navratilova, Martina Polaskova, et al. Tailoring End-Use Properties of Polypropylene through a Combination of Specific Nucleation and Long-Chain Branching. [J/OL]. Chinese Journal of Polymer Science, 2024,421-9. DOI： 10.1007/s10118-024-3234-1.

摘要

Abstract

The present study presents an assessment of the interrelations between long-chain branching

specific nucleation

and end-use properties of polypropylene blends: blends of linear polypropylene (L-PP) and long-chain branched polypropylene (LCB-PP) modified by a specific

-nucleating agent (NA). Specimens with various LCB-PP compositions with and without NA were prepared under complex flow fields by injection molding. Wide-angle X-ray scattering was employed to capture the X-ray patterns of both the skin and core of the specimens

determining the overall crystallinity and amounts of individual polymorphs. The increasing content of LCB-PP and

-phase

at the same time

in the blends is reflected in both increasing crystallinity and improved mechanical properties

namely

yield stress and Young’s modulus. On the other hand

the composition of the blends had no significant effect on the impact strength

except for nucleated L-PP. It has been demonstrated that adding a relatively small amount of LCB-PP is sufficient to modify the mechanical properties of linear polypropylene. Even a very small amount of LCB-PP in the L-PP suppressed the effectiveness of NA.

关键词

Keywords

Polymeric blendLong-chain branched polypropylenePolymorphismMechanical property

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