Journal of Materials Science

, Volume 42, Issue 12, pp 4494–4501 | Cite as

Study on the morphology, rheology and surface of dynamically vulcanized chlorinated butyl rubber/polyethylacrylate extrudates: effect of extrusion temperature and times

  • Jinrong Wu
  • Qiying Pan
  • Guangsu HuangEmail author


A high-damping thermoplastic vulcanizate (TPV) composed of chlorinated butyl rubber (CIIR) and polyethylacrylate (PEA) was prepared by using a twin-screw extruder. The effect of extrusion temperature and times on the morphology, rheology and surface of the extrudates was examined and attempts were made to correlate the extrudate surface with the evolution of two-phase morphology and the rheological behavior. CIIR gel content of each extrudate was also analyzed. The result shows that CIIR gel content increases with increasing extrusion temperature or times; furthermore, extrusion at high temperature can produce numerous PEA and CIIR macromolecular radicals, thus chemical links take place between PEA and CIIR molecules. Morphological analysis indicates that phase inversion occurs at a gel content of around 68%, and with increasing extrusion times at high temperature the dispersed particles become larger and the particle edges become blurrier. All CIIR/PEA extrudates show pseudoplastic flow behavior. The extrusion temperature or extrusion times have a significant effect on melt viscosity of the extrudates. Surface analysis exhibits that co-continuous nature of the two-phase morphology results in melt fracture and periodic distortions on the extrudate surface, but with the increasing extrusion temperature or times the surfaces of the extrudates become gradually smooth.


Extrusion Temperature Dynamic Vulcanization Extrudate Swell Extrudate Surface Strong Shear Stress 



This work was financially supported by the National Natural Science Foundation of China (Project No. 10276025)


  1. 1.
    Holden G, Legge NR, Quirk R, Shroeder HE (1996) Thermoplastic elastomers—a comprehensive review, 2nd edn. Hanser Publishers, Munich, Vienna, New YorkGoogle Scholar
  2. 2.
    Abdou-Sabet S, Puydak RC, Rader CP (1996) Rubber Chem Technol 69(3):476CrossRefGoogle Scholar
  3. 3.
    Anandhan S, De PP, De SK, Bhowmick AK (2003) J Appl Polym Sci 88(8):1976CrossRefGoogle Scholar
  4. 4.
    Wu CG, Zhu YJ, Sun YJ (2000) China Synth Rubber Ind 23(5):270Google Scholar
  5. 5.
    Cai F, Isayev AI (1993) J Elastomers Plastics 25(1):76CrossRefGoogle Scholar
  6. 6.
    Cai F, Isayev AI (1993) J Elastomers Plastics 25(3):249CrossRefGoogle Scholar
  7. 7.
    Fritz HG, Boelz U, Cai Q (1999) Polym Eng Sci 39(6):1087CrossRefGoogle Scholar
  8. 8.
    Fritz HG (1999) J Macromol Sci Pure Appl Chem 36A(11):1683CrossRefGoogle Scholar
  9. 9.
    Wu CG, Zhu YJ, Sun YJ (2000) China Synth Rubber Ind 23(6):362Google Scholar
  10. 10.
    Pei LM, Basil DF (2002) Polym Eng Sci 42(10):1976CrossRefGoogle Scholar
  11. 11.
    Agnes V, Philippe C, Alain M (2004) Polym Int 53(5):523CrossRefGoogle Scholar
  12. 12.
    Rudolf JK, Jaap M (1998) Polym Eng Sci 38(1):101CrossRefGoogle Scholar
  13. 13.
    He XR, Huang GS, Zhou H, Jiang LX, Zhao XD (2005) Acta Polym Sin n1:108Google Scholar
  14. 14.
    Danesi S, Porter RS (1978) Polymer 19(4):448CrossRefGoogle Scholar
  15. 15.
    Snooppy G, Ramamurthy K, Anand JS, Groeninckx G, Varughese KT, Sabu T (1999) Polymer 40(15):4325CrossRefGoogle Scholar
  16. 16.
    Coran AY, Bhowmick AK, Stephens HL (eds) (1988) Handbook of elastomers-development and technology. Marcel Dekker, New YorkGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.College of Polymer Science and Engineering, State Key Laboratory of Polymer Material EngineeringSichuan UniversityChengduChina

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