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.

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
Duration: Mar 23 2015Mar 25 2015

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

Rheology
Nanocomposites
Clay
Aspect ratio
Polymers
Elastic moduli
Maleic Anhydrides
Organoclay
Polypropylenes
Maleic anhydride
Strain hardening
Surface-Active Agents
Surface active agents
Copolymers
Viscosity
Ions
clay

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, 3/23/15.
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. pp. 111-118
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