Extrusion of oil extended thermoplastic vulcanizates

Venkata Giri Kolli, K. Jayaraman, M. D. Ellul

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

    Abstract

    When some thermoplastic vulcanizates (TPVs) or dispersions of crosslinked rubber particles in a polypropylene matrix were extruded through a slit die at 200°C, spots or lumps 50 microns or more in diameter appeared above a critical flow rate on both sides of the extrudate. When the lip of the die was wetted with oil on one side, a decrease in spot formation was observed on the lubricated side of the extrudate. This suggests that insufficient lubrication of TPVs during extrusion is a key factor in spot formation. Analysis of the disperse phase morphology from AFM images revealed that larger and more stretched rubber particles lead to better lubrication in such flows.

    Original languageEnglish (US)
    Title of host publicationAnnual Technical Conference - ANTEC, Conference Proceedings
    Pages126-130
    Number of pages5
    Volume10
    StatePublished - 2005
    EventSociety of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005 - Boston, MA, United States

    Other

    OtherSociety of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005
    CountryUnited States
    CityBoston, MA
    Period5/1/055/5/05

    Profile

    Thermoplastics
    Lubrication
    Extrusion
    Rubber
    Dispersions
    Polypropylenes
    Flow rate

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Kolli, V. G., Jayaraman, K., & Ellul, M. D. (2005). Extrusion of oil extended thermoplastic vulcanizates. In Annual Technical Conference - ANTEC, Conference Proceedings (Vol. 10, pp. 126-130)

    Extrusion of oil extended thermoplastic vulcanizates. / Kolli, Venkata Giri; Jayaraman, K.; Ellul, M. D.

    Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 10 2005. p. 126-130.

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

    Kolli, VG, Jayaraman, K & Ellul, MD 2005, Extrusion of oil extended thermoplastic vulcanizates. in Annual Technical Conference - ANTEC, Conference Proceedings. vol. 10, pp. 126-130, Society of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005, Boston, MA, United States, 1-5 May.
    Kolli VG, Jayaraman K, Ellul MD. Extrusion of oil extended thermoplastic vulcanizates. In Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 10. 2005. p. 126-130.

    Kolli, Venkata Giri; Jayaraman, K.; Ellul, M. D. / Extrusion of oil extended thermoplastic vulcanizates.

    Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 10 2005. p. 126-130.

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

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