The mechanical response and anti-extrusion characteristics of fibre-filled elastomers

G R Hitchcock, A R Akisanya, D S Thompson

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The mechanical response and anti-extrusion characteristics of filled elastomers are examined in this paper. Both room-temperature and elevated-temperature uniaxial unconstrained compression and extrusion tests were carried out on hydrogenated nitriles (HNBRs) filled with carbon black and aramid fibres. The results suggest that fibre-filled HNBRs have a better resistance to extrusion over a range of extrusion gaps and temperatures. The level of extrusion resistance and the failure modes are related to the hardness and modulus of the material. It is shown that the current practice of using the hardness measured by conventional durometers to rank and/or select elastomers for specific applications may not be appropriate for elastomers with low concentration of fibres, as materials with nominally the same hardness have different resistances to extrusion and different compression moduli.

Original languageEnglish
Pages (from-to)37-46
Number of pages10
JournalProceedings of the Institution of Mechanical Engineers. Part L, Journal of Materials - Design and Applications
Volume213
Publication statusPublished - 1999

Keywords

  • elastomers
  • rubbers
  • seals
  • failure mechanisms
  • extrusion

Cite this

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abstract = "The mechanical response and anti-extrusion characteristics of filled elastomers are examined in this paper. Both room-temperature and elevated-temperature uniaxial unconstrained compression and extrusion tests were carried out on hydrogenated nitriles (HNBRs) filled with carbon black and aramid fibres. The results suggest that fibre-filled HNBRs have a better resistance to extrusion over a range of extrusion gaps and temperatures. The level of extrusion resistance and the failure modes are related to the hardness and modulus of the material. It is shown that the current practice of using the hardness measured by conventional durometers to rank and/or select elastomers for specific applications may not be appropriate for elastomers with low concentration of fibres, as materials with nominally the same hardness have different resistances to extrusion and different compression moduli.",
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T1 - The mechanical response and anti-extrusion characteristics of fibre-filled elastomers

AU - Hitchcock, G R

AU - Akisanya, A R

AU - Thompson, D S

PY - 1999

Y1 - 1999

N2 - The mechanical response and anti-extrusion characteristics of filled elastomers are examined in this paper. Both room-temperature and elevated-temperature uniaxial unconstrained compression and extrusion tests were carried out on hydrogenated nitriles (HNBRs) filled with carbon black and aramid fibres. The results suggest that fibre-filled HNBRs have a better resistance to extrusion over a range of extrusion gaps and temperatures. The level of extrusion resistance and the failure modes are related to the hardness and modulus of the material. It is shown that the current practice of using the hardness measured by conventional durometers to rank and/or select elastomers for specific applications may not be appropriate for elastomers with low concentration of fibres, as materials with nominally the same hardness have different resistances to extrusion and different compression moduli.

AB - The mechanical response and anti-extrusion characteristics of filled elastomers are examined in this paper. Both room-temperature and elevated-temperature uniaxial unconstrained compression and extrusion tests were carried out on hydrogenated nitriles (HNBRs) filled with carbon black and aramid fibres. The results suggest that fibre-filled HNBRs have a better resistance to extrusion over a range of extrusion gaps and temperatures. The level of extrusion resistance and the failure modes are related to the hardness and modulus of the material. It is shown that the current practice of using the hardness measured by conventional durometers to rank and/or select elastomers for specific applications may not be appropriate for elastomers with low concentration of fibres, as materials with nominally the same hardness have different resistances to extrusion and different compression moduli.

KW - elastomers

KW - rubbers

KW - seals

KW - failure mechanisms

KW - extrusion

M3 - Article

VL - 213

SP - 37

EP - 46

JO - Proceedings of the Institution of Mechanical Engineers. Part L, Journal of Materials - Design and Applications

JF - Proceedings of the Institution of Mechanical Engineers. Part L, Journal of Materials - Design and Applications

SN - 1464-4207

ER -