Temperature dependent viscoelastic properties of polymers investigated by small-scale dynamic mechanical analysis

Y. C. Lu; D. M. Shinozaki

doi:10.1007/s11340-008-9215-4

Temperature dependent viscoelastic properties of polymers investigated by small-scale dynamic mechanical analysis

Y. C. Lu, D. M. Shinozaki

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Abstract

The temperature-dependent viscoelastic properties of polymers were investigated by small-scale dynamic mechanical analysis in the range of -100°C to 200°C. The polymers tested included glassy polymer (atactic polystyrene), semicrystalline polymer (high-density polyethylene) and rubbery polymer (polyisobutylene). The small-scale dynamic mechanical analyses were performed by using a flat-tip indenter with an oscillating displacement of amplitude 36 nm. The force amplitude and phase angle were measured, from which the storage modulus E′ and loss tangent tanδ were calculated. The results obtained from indentation experiments are consistent with those obtained from conventional dynamic mechanical analyzer (DMA). It is thus demonstrated that the indentation technique can quantitatively measure the temperature-dependent viscoelastic properties of polymers at small dimensions.

Original language	English
Pages (from-to)	71-77
Number of pages	7
Journal	Experimental Mechanics
Volume	50
Issue number	1
DOIs	https://doi.org/10.1007/s11340-008-9215-4
State	Published - Jan 2010

Keywords

Complex modulus
Dynamic mechanical analysis
Indentation
Polymer
Viscoelasticity

ASJC Scopus subject areas

Aerospace Engineering
Mechanics of Materials
Mechanical Engineering

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10.1007/s11340-008-9215-4

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abstract = "The temperature-dependent viscoelastic properties of polymers were investigated by small-scale dynamic mechanical analysis in the range of -100°C to 200°C. The polymers tested included glassy polymer (atactic polystyrene), semicrystalline polymer (high-density polyethylene) and rubbery polymer (polyisobutylene). The small-scale dynamic mechanical analyses were performed by using a flat-tip indenter with an oscillating displacement of amplitude 36 nm. The force amplitude and phase angle were measured, from which the storage modulus E′ and loss tangent tanδ were calculated. The results obtained from indentation experiments are consistent with those obtained from conventional dynamic mechanical analyzer (DMA). It is thus demonstrated that the indentation technique can quantitatively measure the temperature-dependent viscoelastic properties of polymers at small dimensions.",

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AU - Shinozaki, D. M.

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N2 - The temperature-dependent viscoelastic properties of polymers were investigated by small-scale dynamic mechanical analysis in the range of -100°C to 200°C. The polymers tested included glassy polymer (atactic polystyrene), semicrystalline polymer (high-density polyethylene) and rubbery polymer (polyisobutylene). The small-scale dynamic mechanical analyses were performed by using a flat-tip indenter with an oscillating displacement of amplitude 36 nm. The force amplitude and phase angle were measured, from which the storage modulus E′ and loss tangent tanδ were calculated. The results obtained from indentation experiments are consistent with those obtained from conventional dynamic mechanical analyzer (DMA). It is thus demonstrated that the indentation technique can quantitatively measure the temperature-dependent viscoelastic properties of polymers at small dimensions.

AB - The temperature-dependent viscoelastic properties of polymers were investigated by small-scale dynamic mechanical analysis in the range of -100°C to 200°C. The polymers tested included glassy polymer (atactic polystyrene), semicrystalline polymer (high-density polyethylene) and rubbery polymer (polyisobutylene). The small-scale dynamic mechanical analyses were performed by using a flat-tip indenter with an oscillating displacement of amplitude 36 nm. The force amplitude and phase angle were measured, from which the storage modulus E′ and loss tangent tanδ were calculated. The results obtained from indentation experiments are consistent with those obtained from conventional dynamic mechanical analyzer (DMA). It is thus demonstrated that the indentation technique can quantitatively measure the temperature-dependent viscoelastic properties of polymers at small dimensions.

KW - Complex modulus

KW - Dynamic mechanical analysis

KW - Indentation

KW - Polymer

KW - Viscoelasticity

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Temperature dependent viscoelastic properties of polymers investigated by small-scale dynamic mechanical analysis

Abstract

Keywords

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