Temperature dependence of tensile behavior in poly(butylene terephthalate) with different crystallinity

Wenyang Zhang; Jingqing Li; Yingrui Shang; Hongfei Li; Shichun Jiang; Lijia An

doi:10.1016/j.matdes.2017.04.035

Temperature dependence of tensile behavior in poly(butylene terephthalate) with different crystallinity

Wenyang Zhang, Jingqing Li, Yingrui Shang, Hongfei Li, Shichun Jiang, Lijia An

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

The tensile behavior of PBT with different crystallinity was investigated at various temperatures. It turned out that the origin of stress whitening is different for PBT crystallized at 100 °C and 180 °C. The deformation of PBT crystallized at 100 °C involves crazing/tearing and fibrillation at different temperatures. The complicated fracture morphologies including brittle fracture, fibrillation and ductile ploughing are linked to the temperature-dependent deformation mode of PBT crystallized at 180 °C. The yield behavior could be described based on the Ree-Eyring model for PBT crystallized at 100 °C and 180 °C. The effect of temperature on Young's modulus, fracture strain and yield stress was analyzed and the fracture morphology was discussed in detail.

Original language	English
Pages (from-to)	143-150
Number of pages	8
Journal	Materials and Design
Volume	129
DOIs	https://doi.org/10.1016/j.matdes.2017.04.035
State	Published - Sep 5 2017
Externally published	Yes

Funding

This work was supported by the National Natural Science Foundation of China (51573131, 21374077 and 51673147).

Funders	Funder number
National Natural Science Foundation of China	51573131, 51673147, 21374077

Keywords

Fracture
Poly(butylene terephthalate)
Stress whitening
Yield stress

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10.1016/j.matdes.2017.04.035

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title = "Temperature dependence of tensile behavior in poly(butylene terephthalate) with different crystallinity",

abstract = "The tensile behavior of PBT with different crystallinity was investigated at various temperatures. It turned out that the origin of stress whitening is different for PBT crystallized at 100 °C and 180 °C. The deformation of PBT crystallized at 100 °C involves crazing/tearing and fibrillation at different temperatures. The complicated fracture morphologies including brittle fracture, fibrillation and ductile ploughing are linked to the temperature-dependent deformation mode of PBT crystallized at 180 °C. The yield behavior could be described based on the Ree-Eyring model for PBT crystallized at 100 °C and 180 °C. The effect of temperature on Young's modulus, fracture strain and yield stress was analyzed and the fracture morphology was discussed in detail.",

keywords = "Fracture, Poly(butylene terephthalate), Stress whitening, Yield stress",

author = "Wenyang Zhang and Jingqing Li and Yingrui Shang and Hongfei Li and Shichun Jiang and Lijia An",

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doi = "10.1016/j.matdes.2017.04.035",

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TY - JOUR

T1 - Temperature dependence of tensile behavior in poly(butylene terephthalate) with different crystallinity

AU - Zhang, Wenyang

AU - Li, Jingqing

AU - Shang, Yingrui

AU - Li, Hongfei

AU - Jiang, Shichun

AU - An, Lijia

PY - 2017/9/5

Y1 - 2017/9/5

N2 - The tensile behavior of PBT with different crystallinity was investigated at various temperatures. It turned out that the origin of stress whitening is different for PBT crystallized at 100 °C and 180 °C. The deformation of PBT crystallized at 100 °C involves crazing/tearing and fibrillation at different temperatures. The complicated fracture morphologies including brittle fracture, fibrillation and ductile ploughing are linked to the temperature-dependent deformation mode of PBT crystallized at 180 °C. The yield behavior could be described based on the Ree-Eyring model for PBT crystallized at 100 °C and 180 °C. The effect of temperature on Young's modulus, fracture strain and yield stress was analyzed and the fracture morphology was discussed in detail.

AB - The tensile behavior of PBT with different crystallinity was investigated at various temperatures. It turned out that the origin of stress whitening is different for PBT crystallized at 100 °C and 180 °C. The deformation of PBT crystallized at 100 °C involves crazing/tearing and fibrillation at different temperatures. The complicated fracture morphologies including brittle fracture, fibrillation and ductile ploughing are linked to the temperature-dependent deformation mode of PBT crystallized at 180 °C. The yield behavior could be described based on the Ree-Eyring model for PBT crystallized at 100 °C and 180 °C. The effect of temperature on Young's modulus, fracture strain and yield stress was analyzed and the fracture morphology was discussed in detail.

KW - Fracture

KW - Poly(butylene terephthalate)

KW - Stress whitening

KW - Yield stress

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U2 - 10.1016/j.matdes.2017.04.035

DO - 10.1016/j.matdes.2017.04.035

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SP - 143

EP - 150

JO - Materials and Design

JF - Materials and Design

ER -

Temperature dependence of tensile behavior in poly(butylene terephthalate) with different crystallinity

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Keywords

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