The effects of strain rate, density, and temperature on the mechanical properties of polymethylene diisocyanate (PMDI)-based rigid polyurethane foams during compression

Song, Bo; Lu, Wei‐Yang; Syn, Chul Jin; Chen, Weinong

doi:10.1007/s10853-008-3105-0

Cited by 47 publications

(18 citation statements)

References 14 publications

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“…It is widely observed that stiffness and strength of polymers and polymer foams increase with decreasing temperature [8,[16][17][18][19][20][21], and that embrittlement can affect polymers when the operational temperature falls below a certain threshold [22].…”

Section: Introductionmentioning

confidence: 99%

Compressive deformation of Rohacell foams: Effects of strain rate and temperature

Arezoo

Tagarielli

Siviour

et al. 2013

International Journal of Impact Engineering

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Uniaxial compression experiments have been performed on four different densities of Rohacell foam. The experiments explored the sensitivity of the response to the imposed strain rate (in the range 10 -3 -5x10 3 s -1 ) and temperature (203 -473 K). The compressive collapse stress is generally found to increase with increasing strain rate and decreasing temperature; however this tendency is inverted at very low temperatures or very high strain rates. This behaviour is mainly due to embrittlement of the parent polymer but is also related to the details of the foams' microstructures. Timetemperature superposition is employed to map the temperature sensitivity of the foams to their strain rate dependence. A simple design formula is provided to predict the foam stiffness as a function of temperature and relative density.

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Section: Introductionmentioning

confidence: 99%

Compressive deformation of Rohacell foams: Effects of strain rate and temperature

Arezoo

Tagarielli

Siviour

et al. 2013

International Journal of Impact Engineering

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show abstract

“…Figure 13. Strain-rate sensitivities of the three polymer foam materials with different densities [41].…”

Section: Resultsmentioning

confidence: 99%

“…Song et al [41] reported the dynamic mechanical response of three polymer foam materials made by rigid polymethylene diisocyanate (PMDI), varied in density (310 kg/m . High strain rate stress-strain response of polycarbonate [39].…”

Section: Polymethylene Diisocyanate (Pmdi)mentioning

confidence: 99%

Dynamic Mechanical Behaviour of Polymer Materials

Fan¹,

Xia²,

Chen³

2017

Aspects of Polyurethanes

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“…When the composite density was plotted against the composite composition, a negative deviation from the simple additive rule (line drawn in the figure) was noted, implying the existence of voids between the matrix and glass fibers [21]. Figure 4 shows the DSC thermograms of the composites, where the T g of the foam increases with the addition of glass mat showing a maximum at 2% Figure 2.…”

Section: Densitymentioning

confidence: 98%