Non-linear rheology in shear and extensional flows of maleated PP-clay nanocomposites

Tanmay J. Pathak, Krishnamurthy Jayaraman

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

    Abstract

    The strain dependence of large amplitude dynamic shear moduli and the transient extensional viscosity were investigated for model polymer nanocomposites with organoclays. A linear maleic anhydride grafted polypropylene copolymer was compounded with 5 wt% each of two different organically modified clays that had different onium ion surfactants and different aspect ratios. The non-linear storage modulus for the compound with the higher aspect ratio particles showed a two stage drop with increasing strain which highlights the breakup of two structures at different rates-an entanglement network of particle attached chains with free chains and another entanglement network of free chains alone. The same nanocomposite melt also displayed a greater extent of strain hardening in uniaxial extensional flow. Both effects may be attributed to a stronger polymer mediated entanglement network in this nanocomposite.

    Original languageEnglish (US)
    Title of host publicationANTEC 2015 - Proceedings of the Annual Technical Conference and Exhibition of the Society of Plastics Engineers
    PublisherSociety of Plastics Engineers
    Pages111-118
    Number of pages8
    ISBN (Electronic)9780985011277
    StatePublished - 2015
    Event73rd Annual Technical Conference and Exhibition of the Society of Plastics Engineers, SPE ANTEC Orlando 2015 - Orlando, United States

    Other

    Other73rd Annual Technical Conference and Exhibition of the Society of Plastics Engineers, SPE ANTEC Orlando 2015
    CountryUnited States
    CityOrlando
    Period3/23/153/25/15

    Profile

    Nanocomposites
    Laryngeal Mucosa
    Aspect ratio
    Clay
    Elastic moduli
    Polymers
    Carbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing)
    Benzyl Compounds
    Coccidiostats
    Organoclay
    Maleic anhydride
    Rheology
    Strain hardening
    Polypropylenes
    Surface active agents
    Copolymers
    Viscosity
    Ions
    Amino Acid Chloromethyl Ketones
    Dental Staff

    ASJC Scopus subject areas

    • Polymers and Plastics
    • Chemical Engineering(all)

    Cite this

    Pathak, T. J., & Jayaraman, K. (2015). Non-linear rheology in shear and extensional flows of maleated PP-clay nanocomposites. In ANTEC 2015 - Proceedings of the Annual Technical Conference and Exhibition of the Society of Plastics Engineers (pp. 111-118). Society of Plastics Engineers.

    Non-linear rheology in shear and extensional flows of maleated PP-clay nanocomposites. / Pathak, Tanmay J.; Jayaraman, Krishnamurthy.

    ANTEC 2015 - Proceedings of the Annual Technical Conference and Exhibition of the Society of Plastics Engineers. Society of Plastics Engineers, 2015. p. 111-118.

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

    Pathak, TJ & Jayaraman, K 2015, Non-linear rheology in shear and extensional flows of maleated PP-clay nanocomposites. in ANTEC 2015 - Proceedings of the Annual Technical Conference and Exhibition of the Society of Plastics Engineers. Society of Plastics Engineers, pp. 111-118, 73rd Annual Technical Conference and Exhibition of the Society of Plastics Engineers, SPE ANTEC Orlando 2015, Orlando, United States, 23-25 March.
    Pathak TJ, Jayaraman K. Non-linear rheology in shear and extensional flows of maleated PP-clay nanocomposites. In ANTEC 2015 - Proceedings of the Annual Technical Conference and Exhibition of the Society of Plastics Engineers. Society of Plastics Engineers. 2015. p. 111-118.

    Pathak, Tanmay J.; Jayaraman, Krishnamurthy / Non-linear rheology in shear and extensional flows of maleated PP-clay nanocomposites.

    ANTEC 2015 - Proceedings of the Annual Technical Conference and Exhibition of the Society of Plastics Engineers. Society of Plastics Engineers, 2015. p. 111-118.

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

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