Article
  • Thermal Tensile, and Dynamic Mechanical Properties of PVDF/FKM Blends in Different Curing Systems
  • Moezzi MD, Karrabi M, Jahani Y
  • PVDF/FKM 블렌드의 경화에 따른 열, 인장 및 동적 기계적 성질
Abstract
Blends of poly(vinylidene fluoride) (PVDF) and fluororubber (FKM) were prepared in an internal mixer by dynamic vulcanization. The effect of FKM, with and without curing system, was studied with respect to the properties of the PVDF/FKM blends. The tensile test showed that the tensile strength and modulus decreased after blending but the elongation-at-break naturally increased because of the presence of rubber in PVDF matrix. The differential scanning calorimetry (DSC) test gave good indications of improved state of miscibility in most blend ratios. The increase of FKM content showed a favorable tendency of PVDF component toward crystallization. The incorporation of FKM as a coblend improved the thermal stability of PVDF, and the temperature at 10% weight loss of the blends increased. This was confirmed by one value of glass transition temperature obtained from DMTA test, which indicated two different values for pure polymers. The rheological tests showed that the complex viscosity and storage modulus of the blends increased with increasing frequency.

Keywords: poly(vinylidene fluoride); fluororubber; blends; dynamic vulcanization; thermal analysis

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2017; 41(2): 250-259

    Published online Mar 25, 2017

  • 10.7317/pk.2017.41.2.250
  • Received on Aug 30, 2016
  • Accepted on Nov 14, 2016