Abstract
Microcellular plastics (MCPs) are one of the most significant developments in the plastics industry over the last decade. Microcellular plastics keep mechanical strength loss and plastic weight to a minimum through microcells inside MCPs. The size and number of cells inside MCPs have a direct correlation with foaming ratio. The cell size has to be consistent to ensure higher quality of MCPs, and a great number of cells are needed for a high foaming ratio. This underscores the need to control the size and number of cells to meet products' required performance. In the microcellular batch process, saturation and foaming conditions are major factors that influence the size and number of cells. This article describes how desorption time, defined as the time lapse between saturation and foaming processes, affects cell formation. Our particular concern is the effect of varying desorption time on foaming ratio and cell morphology. The general rule is that the shorter the desorption time, the higher the foaming ratio (i.e., more cells of smaller sizes are formed because of more dissolved gas molecules remaining in the sample). In our study, however, an opposite trend was observed for desorption time less than 2 minutes. As such, different desorption times ranging from 1 to 5 minutes were used to systematically investigate the corresponding changes in foaming ratio and cell morphology. A possible mechanism of action for this anomalous phenomenon is suggested.
| Original language | English |
|---|---|
| Pages (from-to) | 8-14 |
| Number of pages | 7 |
| Journal | Polymer - Plastics Technology and Engineering |
| Volume | 50 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2011 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Materials Science (miscellaneous)
- Chemical Engineering(all)
- Polymers and Plastics
- Materials Chemistry
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The effect of gas desorption on foaming ratio of microcellular foamed plastics. / Seo, Jung Hwan; Ohm, Won Suk; Cho, Soo hyun; Cha, Sung W.
In: Polymer - Plastics Technology and Engineering, Vol. 50, No. 1, 01.01.2011, p. 8-14.Research output: Contribution to journal › Article
TY - JOUR
T1 - The effect of gas desorption on foaming ratio of microcellular foamed plastics
AU - Seo, Jung Hwan
AU - Ohm, Won Suk
AU - Cho, Soo hyun
AU - Cha, Sung W.
PY - 2011/1/1
Y1 - 2011/1/1
N2 - Microcellular plastics (MCPs) are one of the most significant developments in the plastics industry over the last decade. Microcellular plastics keep mechanical strength loss and plastic weight to a minimum through microcells inside MCPs. The size and number of cells inside MCPs have a direct correlation with foaming ratio. The cell size has to be consistent to ensure higher quality of MCPs, and a great number of cells are needed for a high foaming ratio. This underscores the need to control the size and number of cells to meet products' required performance. In the microcellular batch process, saturation and foaming conditions are major factors that influence the size and number of cells. This article describes how desorption time, defined as the time lapse between saturation and foaming processes, affects cell formation. Our particular concern is the effect of varying desorption time on foaming ratio and cell morphology. The general rule is that the shorter the desorption time, the higher the foaming ratio (i.e., more cells of smaller sizes are formed because of more dissolved gas molecules remaining in the sample). In our study, however, an opposite trend was observed for desorption time less than 2 minutes. As such, different desorption times ranging from 1 to 5 minutes were used to systematically investigate the corresponding changes in foaming ratio and cell morphology. A possible mechanism of action for this anomalous phenomenon is suggested.
AB - Microcellular plastics (MCPs) are one of the most significant developments in the plastics industry over the last decade. Microcellular plastics keep mechanical strength loss and plastic weight to a minimum through microcells inside MCPs. The size and number of cells inside MCPs have a direct correlation with foaming ratio. The cell size has to be consistent to ensure higher quality of MCPs, and a great number of cells are needed for a high foaming ratio. This underscores the need to control the size and number of cells to meet products' required performance. In the microcellular batch process, saturation and foaming conditions are major factors that influence the size and number of cells. This article describes how desorption time, defined as the time lapse between saturation and foaming processes, affects cell formation. Our particular concern is the effect of varying desorption time on foaming ratio and cell morphology. The general rule is that the shorter the desorption time, the higher the foaming ratio (i.e., more cells of smaller sizes are formed because of more dissolved gas molecules remaining in the sample). In our study, however, an opposite trend was observed for desorption time less than 2 minutes. As such, different desorption times ranging from 1 to 5 minutes were used to systematically investigate the corresponding changes in foaming ratio and cell morphology. A possible mechanism of action for this anomalous phenomenon is suggested.
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UR - http://www.scopus.com/inward/citedby.url?scp=78751617041&partnerID=8YFLogxK
U2 - 10.1080/03602559.2010.512342
DO - 10.1080/03602559.2010.512342
M3 - Article
VL - 50
SP - 8
EP - 14
JO - Journal of Macromolecular Science: Part D - Reviews in Polymer Processing
JF - Journal of Macromolecular Science: Part D - Reviews in Polymer Processing
SN - 0360-2559
IS - 1
ER -