The use of rheological and thermal fractionation methods for the assessment of nucleating agent efficiency in polypropylene

Saeid Kheirandish, Markus Gahleitner, Martin Obadal, Petar Doshev, B. Pukánszky, Alfred Menyhdrd

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The increasing diversity of commercial polypropylene products in recent years, related to the increase in the production volumes of PP, has led to a high number of studies dealing with structure-specific nucleating agents (NA's) [1]. Experiments on sorbitol-based NA's suggest that the nucleation function of this group of nucleating agents is a result of hydrogen bonding and self-assembly. So far, nucleation studies have been conducted in an indiscriminate manner with little reference to the exact effect of PP structure on nucleating behaviour of NA's. However, given the variety of commercial PP structures produced today, the question on the existence of synergy between polypropylene structure and nucleating efficiency of NA's remains open. The SIST (Stepwise Isothermal Segregation Technique) has been used in this study as a fast and efficient method to characterize a group of random PP's having different structures, giving the lamellar thickness distribution. In addition, temperature sweep measurements were performed to study the effect of flow on the interaction between NA and PP. In this way, small discrepancies between different materials can be pointed out to assess the nucleating efficiency of the nucleating agent.

Original languageEnglish
Title of host publicationAnnual Technical Conference - ANTEC, Conference Proceedings
Pages547-552
Number of pages6
Volume1
Publication statusPublished - 2010
Event68th Annual Technical Conference of the Society of Plastics Engineers 2010, ANTEC 2010 - Orlando, FL, United States
Duration: May 16 2010May 20 2010

Other

Other68th Annual Technical Conference of the Society of Plastics Engineers 2010, ANTEC 2010
CountryUnited States
CityOrlando, FL
Period5/16/105/20/10

Fingerprint

Polypropylenes
Fractionation
Nucleation
Sorbitol
Hot Temperature
Self assembly
Hydrogen bonds

ASJC Scopus subject areas

  • Polymers and Plastics
  • Chemical Engineering(all)

Cite this

Kheirandish, S., Gahleitner, M., Obadal, M., Doshev, P., Pukánszky, B., & Menyhdrd, A. (2010). The use of rheological and thermal fractionation methods for the assessment of nucleating agent efficiency in polypropylene. In Annual Technical Conference - ANTEC, Conference Proceedings (Vol. 1, pp. 547-552)

The use of rheological and thermal fractionation methods for the assessment of nucleating agent efficiency in polypropylene. / Kheirandish, Saeid; Gahleitner, Markus; Obadal, Martin; Doshev, Petar; Pukánszky, B.; Menyhdrd, Alfred.

Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 1 2010. p. 547-552.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kheirandish, S, Gahleitner, M, Obadal, M, Doshev, P, Pukánszky, B & Menyhdrd, A 2010, The use of rheological and thermal fractionation methods for the assessment of nucleating agent efficiency in polypropylene. in Annual Technical Conference - ANTEC, Conference Proceedings. vol. 1, pp. 547-552, 68th Annual Technical Conference of the Society of Plastics Engineers 2010, ANTEC 2010, Orlando, FL, United States, 5/16/10.
Kheirandish S, Gahleitner M, Obadal M, Doshev P, Pukánszky B, Menyhdrd A. The use of rheological and thermal fractionation methods for the assessment of nucleating agent efficiency in polypropylene. In Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 1. 2010. p. 547-552
Kheirandish, Saeid ; Gahleitner, Markus ; Obadal, Martin ; Doshev, Petar ; Pukánszky, B. ; Menyhdrd, Alfred. / The use of rheological and thermal fractionation methods for the assessment of nucleating agent efficiency in polypropylene. Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 1 2010. pp. 547-552
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