Abstract
Environmental stress crack resistance (ESCR) is a commonly used test to characterize cracking failure of high-density polyethylene in applications such as wires, cables, blow molded containers, and other rigid packaging applications. From a resin design standpoint, it is important to understand the mechanism of environmental stress cracking especially in the case of materials with significantly different ESCR values. Currently, two standard ESCR tests, ASTM D1693 and ASTM F2136, are commonly accepted to measure environmental stress crack resistance of HDPE. An accurate observation of ESC is important to understand the fracture mechanism of samples. In this study, the ESCR performance of six HDPE samples was determined per ASTM D1693. The failed specimens were further characterized by scanning electron microscopy and fractographic methodology to investigate the failure mechanism. HDPE resins with low ESCR values had crack surfaces characterized by shorter and fewer fibrils. A new empirical model to predict polymer ESCR using tie chain concentration with different integration range, and water vapor transmission rate, to characterize detergent diffusion in the crack, was developed. The proposed empirical parameter improves the prediction of ESCR. The ability to predict ESCR performance from resin properties is a beneficial tool for new product development. POLYM. ENG. SCI., 49:2085-2091, 2009.
| Original language | English |
|---|---|
| Pages (from-to) | 2085-2091 |
| Number of pages | 7 |
| Journal | Polymer Engineering and Science |
| Volume | 49 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2009 Nov 1 |
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ASJC Scopus subject areas
- Polymers and Plastics
- Materials Chemistry
- Chemistry(all)
Cite this
Modeling of the fracture mechanism of HDPE subjected to environmental stress crack resistance test. / Choi, Byoung-Ho; Weinhold, Jeffrey; Reuschle, David; Kapur, Mridula.
In: Polymer Engineering and Science, Vol. 49, No. 11, 01.11.2009, p. 2085-2091.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Modeling of the fracture mechanism of HDPE subjected to environmental stress crack resistance test
AU - Choi, Byoung-Ho
AU - Weinhold, Jeffrey
AU - Reuschle, David
AU - Kapur, Mridula
PY - 2009/11/1
Y1 - 2009/11/1
N2 - Environmental stress crack resistance (ESCR) is a commonly used test to characterize cracking failure of high-density polyethylene in applications such as wires, cables, blow molded containers, and other rigid packaging applications. From a resin design standpoint, it is important to understand the mechanism of environmental stress cracking especially in the case of materials with significantly different ESCR values. Currently, two standard ESCR tests, ASTM D1693 and ASTM F2136, are commonly accepted to measure environmental stress crack resistance of HDPE. An accurate observation of ESC is important to understand the fracture mechanism of samples. In this study, the ESCR performance of six HDPE samples was determined per ASTM D1693. The failed specimens were further characterized by scanning electron microscopy and fractographic methodology to investigate the failure mechanism. HDPE resins with low ESCR values had crack surfaces characterized by shorter and fewer fibrils. A new empirical model to predict polymer ESCR using tie chain concentration with different integration range, and water vapor transmission rate, to characterize detergent diffusion in the crack, was developed. The proposed empirical parameter improves the prediction of ESCR. The ability to predict ESCR performance from resin properties is a beneficial tool for new product development. POLYM. ENG. SCI., 49:2085-2091, 2009.
AB - Environmental stress crack resistance (ESCR) is a commonly used test to characterize cracking failure of high-density polyethylene in applications such as wires, cables, blow molded containers, and other rigid packaging applications. From a resin design standpoint, it is important to understand the mechanism of environmental stress cracking especially in the case of materials with significantly different ESCR values. Currently, two standard ESCR tests, ASTM D1693 and ASTM F2136, are commonly accepted to measure environmental stress crack resistance of HDPE. An accurate observation of ESC is important to understand the fracture mechanism of samples. In this study, the ESCR performance of six HDPE samples was determined per ASTM D1693. The failed specimens were further characterized by scanning electron microscopy and fractographic methodology to investigate the failure mechanism. HDPE resins with low ESCR values had crack surfaces characterized by shorter and fewer fibrils. A new empirical model to predict polymer ESCR using tie chain concentration with different integration range, and water vapor transmission rate, to characterize detergent diffusion in the crack, was developed. The proposed empirical parameter improves the prediction of ESCR. The ability to predict ESCR performance from resin properties is a beneficial tool for new product development. POLYM. ENG. SCI., 49:2085-2091, 2009.
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U2 - 10.1002/pen.21458
DO - 10.1002/pen.21458
M3 - Article
VL - 49
SP - 2085
EP - 2091
JO - Polymer Engineering and Science
JF - Polymer Engineering and Science
SN - 0032-3888
IS - 11
ER -