A parametric study into the morphology of polystyrene-co-methyl methacrylate foams using supercritical carbon dioxide as a blowing agent

Polymer ◽  
2007 ◽  
Vol 48 (13) ◽  
pp. 3771-3780 ◽  
Author(s):  
L.J.M. Jacobs ◽  
K.C.H. Danen ◽  
M.F. Kemmere ◽  
J.T.F. Keurentjes
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Methyl Methacrylate ◽  
Parametric Study ◽  
Blowing Agent ◽  
Supercritical Carbon

Thermoplastic starch and glutaraldehyde modified thermoplastic starch foams prepared using supercritical carbon dioxide fluid as a blowing agent

2018 ◽  
Vol 29 (10) ◽  
pp. 2643-2654 ◽  
Author(s):  
Jia-li Peng ◽  
Xuan-long Peng ◽  
James Runt ◽  
Chao-ming Huang ◽  
Kuo-shien Huang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Thermoplastic Starch ◽  
Blowing Agent ◽  
Starch Foams ◽  
Supercritical Carbon

Pulsed-Laser Polymerization of Methyl Methacrylate in Liquid and Supercritical Carbon Dioxide

1998 ◽  
Vol 31 (19) ◽  
pp. 6481-6485 ◽  
Author(s):  
Murat A. Quadir ◽  
Joseph M. DeSimone ◽  
Alex M. van Herk ◽  
Anton L. German
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Methyl Methacrylate ◽  
Pulsed Laser ◽  
Supercritical Carbon ◽  
Pulsed Laser Polymerization

scholarly journals Foaming Behavior and Microcellular Morphologies of Incompatible SAN/CPE Blends with Supercritical Carbon Dioxide as a Physical Blowing Agent

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 89 ◽  
Author(s):  
Hai-Chen Zhang ◽  
Chun-Na Yu ◽  
Yong Liang ◽  
Gui-Xiang Lin ◽  
Cong Meng
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Pore Size ◽  
Cell Density ◽  
Average Pore Size ◽  
Average Pore ◽  
Chlorinated Polyethylene ◽  
Blowing Agent ◽  
Interconnected Pores ◽  
Supercritical Carbon

The foaming process and cellular morphologies of poly(styrene-co-acrylonitrile) (SAN)/chlorinated polyethylene (CPE) blends with supercritical carbon dioxide (scCO2) as a blowing agent were investigated in this study. As compared to pure SAN foam in the same batch, the foamed blends with various CPE elastomer content had smaller average pore size and larger cell density. This is probably related to the inhibition of bubble growth by elastomer, resulting in poor melt flowability and strong viscoelasticity, and the efficient bubble heterogeneous nucleation caused by numerous phase interfaces inside the incompletely compatible blend system. In addition, many tiny interconnected holes through the pore walls were formed to connect adjacent micropores in foamed blend samples. The formation mechanism of such interconnected pores is probably due to the fracture of stretched melt around the bubble from phase interfaces with weak interactions. These facts suggest an effective path to control pore size, cell density and even interconnected pores of blend foams depends on the compatibility of the blend system and difference in foamability of individual components in supercritical CO2.

Sign in / Sign up

Export Citation Format

Share Document