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.

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
Duration: May 1 2005May 5 2005

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
Oils

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, 5/1/05.
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. pp. 126-130
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