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：2024-12-31

- Tailoring End-Use Properties of Polypropylene through a Combination of Specific Nucleation and Long-Chain Branching
- Chinese Journal of Polymer Science Vol. 43, Issue 1, Pages: 101-109(2025)
- 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：
- Received：24 July 2024，
  
  Revised：2024-08-15，
  
  Accepted：07 September 2024，
  
  Online First：07 November 2024，
  
  Published：01 January 2025
- 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. 2025, 43, 101–109

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]. Chinese Journal of Polymer Science, 2025, 43(1): 101-109.
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. 2025, 43, 101–109 DOI： 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]. Chinese Journal of Polymer Science, 2025, 43(1): 101-109. DOI： 10.1007/s10118-024-3234-1.

摘要

Morphology and end-used properties of linear polypropylene (L-PP) can be tailored

via

incorporation of minor portion of long-chain branched polypropylene (LCB-PP) and/or specific

-nucleating agent. Important role plays also processing technique and conditions. Nucleating agent has minor effect in LCB-PP and blends as compared to L-PP.

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

references

Speranza, V.; De Santis, F.; Pantani, R. Effect of isothermal shear flow on morphology evolution of an isotactic polypropylene. Polymer 2024 , 295 , 126752..

Shirvanimoghaddam, K.; Balaji, K. V.; Yadav, R.; Zabihi, O.; Ahmadi, M.; Adetunji, P.; Naebe, M. Balancing the toughness and strength in polypropylene composites. Compos. B Eng. 2021 , 223 , 109121..

Gahleitner, M.; Mileva, D.; Androsch, R.; Gloger, D.; Tranchida, D.; Sandholzer, M.; Doshev, P. Crystallinity-based product design: utilizing the polymorphism of isotactic PP homo- and copolymers. Int. Polym. Process. 2016 , 31 , 618−627..

Padden, F. J.; Keith, H. D. Spherulitic crystallization in polypropylene. J. Appl. Phys. 1959 , 30 , 1479−1484..

Natta, G.; Corradini, P. Structure and properties of isotactic polypropylene. Lett. nuovo cimento. 1960 , 15 , 40−51..

Xu, X.; Li, X. P.; Jin, B. Q.; Sheng, Q.; Wang, T.; Zhang, J. Influence of morphology evolution on the mechanical properties of beta nucleated isotactic polypropylene in presence of polypropylene random copolymer. Polym. Test. 2016 , 51 , 13−19..

Lotz, B. A. New ε crystal modification found in stereodefective isotactic polypropylene samples. Macromolecules 2014 , 47 , 7612−7624..

Yang, S. G Chen, Y. H.; Deng, B. W.; Lei, J.; Li, L.; Li, Z. M. Window of pressure and flow to produce β -crystals in isotactic polypropylene mixed with β -nucleating agent. Macromolecules 2017 , 50 , 4807−4816..

Zenzingerova, S.; Navratilova, J.; Gajzlerova, L.; Kudlacek, M.; Jaska, D.; Benicek, L.; Cermak, R. Polypropylene blends: impact of long chain-branched polypropylene on crystallization of linear polypropylene. Express Polym. Lett. 2024 , 18 , 921−930..

Chvatalova, L.; Navratilova, J.; Cermak, R.; Raab, M.; Obadal, M. Joint effects of molecular structure and processing history on specific nucleation of isotactic polypropylene. Macromolecules 2009 , 42 , 7413−7417..

Roozemond, P. C.; van Erp, T. B.; Peters, G. W. M. Flow-induced crystallization of isotactic polypropylene: modeling formation of multiple crystal phases and morphologies. Polymer 2016 , 89 , 69−80..

Karger-Kocsis, J.; Varga, J. Effects of β - α transformation on the static and dynamic tensile behavior of isotactic polypropylene. J. Appl. Polym. Sci. 1996 , 62 , 291−300..

Wu, Ch-M.; Chen, M.; Karger-Kocsis, J. The role of metastability in the micromorphologic features of sheared isotactic polypropylene melts. Polymer 1999 , 40 , 4195−4203..

Somani, R. H.; Hsiao, B. S.; Nogales, A.; Srinivas, S.; Tsou, A. H.; Sics, I.; Balta-Calleja, F. J.; Ezquerra, T. A. Structure development during shear flow-induced crystallization of i-PP: in-situ small-angle X-ray scattering study. Macromolecules 2000 , 33 , 9385−9394..

Gajzlerova, L.; Navratilova,J.; Ryzi, A.; Slabenakova, T.; Cermak, R. Joint effects of long-chain branching and specific nucleation on morphology and thermal properties of polypropylene blends. Express Polym. Lett. 2020 , 14 , 952−961..

Kotek, J.; Raab, M.; Baldrian, J.; Grellmann, W. The effect of specific β -nucleation on morphology and mechanical behavior of isotactic polypropylene. J. Appl. Polym. Sci. 2002 , 85 , 1174−1184..

Obadal, M.; Cermak, R.; Baran, N.; Stoklasa, K.; Simonik, J. Impact strength of β -nucleated polypropylene. Int. Polym. Process. 2004 , 19 , 35−39..

Romankiewicz, A.; Sterzynski, T.; Brostow, W. Structural characterization of α - and β -nucleated isotactic polypropylene. Polym. Int. 2004 , 53 , 2086−2091..

Výchopňová, J.; Čermák, R.; Obadal, M.; Raab, M.; Verney, V.; Commereuc, S. The role of specific nucleation in polypropylene photodegradation. Polym. Degrad. Stabil. 2007 , 92 , 1763−1768..

Yang, S. G.; Zhang, Y.; Zhang, L. Q.; Zhou, D.; Wang, Y.; Lei, J.; Li, L.; Li, Z. M. Unexpected shear dependence of pressure-induced γ -crystals in isotactic polypropylene. Polym. Chem. 2015 , 6 , 4588−4596..

Thomann, R.; Wang, C.; Kressler, J.; Mulhaupt, R. On the γ -phase of isotactic polypropylene. Macromolecules 1996 , 29 , 8425−8434..

Alamo, R. G.; Kim, M. H.; Galante, M. J.; Isasi, J. R.; Mandelkern, L. Structural and kinetic factors governing the formation of the γ polymorph of isotactic polypropylene. Macromolecules 1999 , 32 , 4050−4064..

Wang, Y.; Zhao, J.; Qu, M.; Guo, J.; Yang, S. G.; Lei, J.; Xu, J. Z.; Chen, Y. H.; Li, Z. M.; Hsiao, B. S. An unusual promotion of γ -crystals in metallocene-made isotactic polypropylene from orientational relaxation and favorable temperature window induced by shear. Polymer. 2018 , 134 , 196−203..

Zhou, S.; Wang, W.; Xin, Z.; Zhao, S.; Shi, Y. Relationship between molecular structure, crystallization behavior, and mechanical properti es of long chain branching polypropylene. J. Mater. Sci. 2016 , 51 , 5598−5608..

Gajzlerova, L.; Navratilova, J.; Polaskova, M.; Benicek, L, Cermak, R. The polymorphic composition of long-chain branched polypropylene processed by injection and compression molding. Express Polym. Lett. 2023 , 17 , 1031−1041..

Navratilova, J.; Gajzlerova, L.; Kovar, L.; Cermak, R. Long-chain branched polypropylene: crystallization under high pressure and polymorphic composition. J. Therm. Anal. Calorim. 2021 , 143 , 3377−3383..

Mendoza-Cedeno, S.; Embabi, M.; Chang, E.; Kweon, M. S.; Shivokhin, M.; Pehlert, G.; Lee, P. Influence of molecular weight on high- and low-expansion foam injection molding using linear polypropylene. Polymer 2023 , 266 , 125611..

Weng, W.; Hu, W.; Dekmerzian, A. H.; Ruff, C. J. Long chain branched isotactic polypropylene. Macromolecules 2002 , 35 , 3838−3843..

Langston, J. A.; Colby, R. H.; Chung, T. C. M.; Shimizu, F.; Suzuki, T.; Aoki, M. Synthesis and characterization o f long chain branched isotactic polypropylene via metallocene catalyst and T-reagent. Macromolecules 2007 , 40 , 2712−2720..

Auhl, D.; Stange, J.; Münstedt, H.; Krause, B.; Voigt, D.; Lederer, A.; Lappan, U.; Lunkwitz, K. Long-chain branched polypropylenes by electron beam irradiation and their rheological properties. Macromolecules 2004 , 37 , 9465−9472..

Wang, K.; Wang, S.; Wu, F.; Pang, Y.; Liu, W.; Zhai, W. A new strategy for preparation of long-chain branched polypropylene via reactive extrusion with supercritical CO 2 designed for an improved foaming approach. J. Mater. Sci. 2016 , 51 , 2705−2715..

Tian, J.; Yu, W.; Zhou, C. Crystallization behaviors of linear and long chain branched polypropylene. J. Appl. Polym. Sci. 2007 , 104 , 3592−3600..

McCallum, T. J.; Kontopoulou, M.; Park, C. B.; Muliawan, E. B.; Hatzikiriakos, S. G. The rheological and physical properties of linear and branched polypropylene blends. Polym. Eng. Sci. 2007 , 47 , 1133−1140..

Nam, G. J.; Yoo, J. H.; Lee, J. W. Effect of long-chain branches of polypropylene on rheological properties and foam-extrusion performances. J. Appl. Polym. Sci. 2005 , 96 , 1793−1800..

Gotsis, A. D.; Zeevenhoven, B. L.; Hogt, A. H. The effect of long chain branching on the processability of polypropylene in thermoforming. Polym. Eng. Sci. 2004 , 44 , 973−982..

Cao, J.; Zheng, Y.; Lin, T. Synergistic toughening effect of β -nucleating agent and long chain branching on polypropylene random copolymer. Polym. Test. 2016 , 55 , 318−327..

Sun, H.; Zhao, Z.; Yang, Q.; Yang, L.; Wu, P. The morphological evolution and β -crystal distribution of isotactic polypropylene with the assistance of a long chain branched structure at micro-injection molding condition. J. Polym. Res. 2017 , 24 , 75..

Rytöluoto, I.; Gitsas, A.; Pasanen, S.; Lahti, K. Effect of film structure and morphology on the dielectric breakdown characteristics of cast and biaxially oriented polypropylene films. Eur. Polym. J. 2017 , 95 , 606−624..

Obadal, M.; Čermák, R.; Stoklasa, K. Tailoring of three-phase crystalline systems in isotactic poly(propylene). Macromol. Rapid Commun. 2005 , 26 , 1253−1257..

Turner-Jones, A.; Aizlewood, J. M.; Beckett, D. R. Crystalline forms of isotactic polypropylene. Macromol. Chem. Phys. 1964 , 75 , 134−158..

Sauer, J. A.; Pae, K. D. Structure and thermal behavior of pressure-crystallized polypropylene. J. Appl. Phys. 1968 , 39 , 4959−4968..

Gajzlerova, L.; Navratilova, J.; Zenzingerova, S.; Jaska, D.; Benicek, L.; Kudlacek, M.; Cermak, R.; Obadal, M. On isotactic polypropylene annealing: Difference in final properties of neat and β -nucleated polypropylene. Express Polym. Lett. 2022 , 16 , 453−464..

Varga, J.; Menzhárd, A. Effect of solubility and nucleating duality of n,n‘-dicyclohexyl-2,6-naphthalenedicarboxamide on the supermolecular structure of isotactic polypropylene. Macromolecules 2007 , 40 , 2422−2431..

Zenzingerova, S.; Kudlacek, M.; Navratilova, J.; Gajzlerova, L.; Jaska, D.; Benicek, L.; Cermak, R. The competition between self-seeding and specific nucleation in crystallization of long-chain branched polypropylene. Express Polym. Lett. 2023 , 17 , 1110−1120..

Slouf, M.; Pavlova, E.; Krejcikova, S.; Ostafinska, A.; Zhigunov, A.; Krzyzanek, V.; Sowinski, P.; Piorkowska, E. Relations between morphology and micromechanical properties of alpha, beta and gamma phases of iPP. Polym. Test. 2018 , 67 , 522−532..

Nitta, K.; Takashima, T. Tensile properties in β -modified isotactic polypropylene. in: Polypropylene-polymerization and characterization of mechanical and thermal properties . Wang, W. Ed., London: IntechOpen; 2018 ..

Zhao, W.; Huang, Y.; Liao, X.; Yang, Q. The molecular structure characteristics of long chain branched polypropylene and its effects on non-isothermal crystallization and mechanical properties. Polymer 2013 , 54 , 1455−1462..

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