Creep behavior of amorphous ethylene-styrene interpolymers in the glass transition region

Chen, H. Y.; Stepanov, E. V.; Chum, S. P.; Hiltner, A.; Baer, E.

doi:10.1002/(sici)1099-0488(19990901)37:17<2373::aid-polb8>3.0.co;2-m

Cited by 28 publications

(41 citation statements)

References 23 publications

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“…In addition, Chen et al provided estimates of the entanglement molecular weights for ESI. [29] The low M e values found suggest high entanglement density in the amorphous polymers, which is considered to contribute to the ability of the polymers to shear yield at temperatures below T g rather than undergo brittle fracture.…”

Section: Mechanical Propertiesmentioning

confidence: 95%

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Materials Properties Derived from INSITE Metallocene Catalysts

2000

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Section: Mechanical Propertiesmentioning

confidence: 95%

“…[29] In another aspect of viscoelastic behavior, Chen et al [30] reported large strain/stress relaxation and strain recovery of ESIs at temperatures above T g , and found that the observed behavior could be rationalized in terms of various network models.…”

Section: Thermal Transitions/viscoelastic Behaviormentioning

confidence: 99%

Materials Properties Derived from INSITE Metallocene Catalysts

2000

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“…As the temperature increases, the mobility of the chains increases, and this results in an increased creep rate at the same applied stress (e.g., ref. [8] ). Figure 3a-c demonstrate the effect of increased temperature on the creep response of neat PS, and PS/FH micro-/nanocomposites at 4.5 wt.-% FH content.…”

Section: Effect Of Temperaturementioning

confidence: 99%

Creep Behavior of Polystyrene/Fluorohectorite Micro‐ and Nanocomposites

Siengchin

Karger‐Kocsis

2006

Macromol. Rapid Commun.

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Summary: Pristine FH is incorporated into a PS matrix by melt blending with and without latex precompounding of PS and FH. Direct melt blending results in microcomposites, whereas the latex‐mediated (masterbatch) technique results in PS/FH nanocomposites. The tensile creep response of the micro‐ and nanocomposites are determined in short‐term creep tests. The resistance to creep is improved with increasing dispersion of FH in the PS matrix. Master curves (creep compliance vs. time), constructed based on isothermal creep tests performed in the temperature range between 5 and 45 °C, show that the FH reinforcement affects mostly the initial creep compliance (interphase effect). On the other hand, the stable creep is matrix (bulk) dominated. It is established that the Williams‐Landel‐Ferry equation is fairly applicable to the creep results.Scheme of the change of creep compliance as a function of time for micro‐ and nanocomposites with an amorphous matrix.magnified imageScheme of the change of creep compliance as a function of time for micro‐ and nanocomposites with an amorphous matrix.

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“…Material properties, such as material types [9], molecular orientation, density [10], crystallinity [11], etc., and external test conditions, such as applied load [12,13], temperature [14,15,11], and humidity caused to complicate the creep deformation of thermoplastic materials.…”

Section: Introductionmentioning

confidence: 99%

“…So, the viscous behavior of thermoplastics was the objective of extensive experimental studies over many decades [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Some researches can be summarized as follows:…”

Section: Introductionmentioning

confidence: 99%

Tensile Creep Behavior of Medium-Density Polyethylene

Mosavian

Bakhtiari

Sahebian

2010

Journal of Thermoplastic Composite Materials

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This research investigated the effect of stress and temperature on the viscous behavior of medium-density polyethylene (MDPE). The creep properties of pure MDPE using film specimens were studied under the static loading range 15-55 MPa by a thermomechanical analyzer at room temperature and elevated temperature (308C, 608C, and 908C). Viscoelastic properties were derived from experimentally measured creep data, including isochronous stress-strain diagram, creep modulus, and creep rate charts with the influence of stress and temperature. In addition, the effect of creep strain and viscous flow on MDPE structure was investigated by a thermogravimetry analyzer. The results of this study showed that the linear viscoelastic behavior of MDPE changes with stress and temperature, and any reduction of polymer chains and structure revolution under the tensile creep test were not shown.

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Creep behavior of amorphous ethylene-styrene interpolymers in the glass transition region

Cited by 28 publications

References 23 publications

Materials Properties Derived from INSITE Metallocene Catalysts

Materials Properties Derived from INSITE Metallocene Catalysts

Creep Behavior of Polystyrene/Fluorohectorite Micro‐ and Nanocomposites

Tensile Creep Behavior of Medium-Density Polyethylene

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