Preparation of poly(propylene carbonate)/nano calcium carbonate composites and their supercritical carbon dioxide foaming behavior

2015 ◽  
Vol 132 (28) ◽  
pp. n/a-n/a ◽  
Author(s):  
Peng Yu ◽  
Hao-Yang Mi ◽  
An Huang ◽  
Xian Liu ◽  
Bin-Yi Chen ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Calcium Carbonate ◽  
Supercritical Carbon Dioxide ◽  
Propylene Carbonate ◽  
Foaming Behavior ◽  
Poly Propylene ◽  
Supercritical Carbon

Control of calcium carbonate morphology by precipitation in compressed and supercritical carbon dioxide media

2004 ◽  
Vol 271 (1-2) ◽  
pp. 268-273 ◽  
Author(s):  
Concepción Domingo ◽  
Jesús García-Carmona ◽  
Eva Loste ◽  
Alejandra Fanovich ◽  
Julio Fraile ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Calcium Carbonate ◽  
Supercritical Carbon Dioxide ◽  
Supercritical Carbon Dioxide Media ◽  
Supercritical Carbon

Functionalized Poly(propylene imine) Dendrimers as Novel Phase Transfer Catalysts in Supercritical Carbon Dioxide

2000 ◽  
Vol 39 (12) ◽  
pp. 4634-4640 ◽  
Author(s):  
E. L. V. Goetheer ◽  
M. W. P. L. Baars ◽  
L. J. P. van den Broeke ◽  
E. W. Meijer ◽  
J. T. F. Keurentjes
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Phase Transfer ◽  
Phase Transfer Catalysts ◽  
Poly Propylene ◽  
Supercritical Carbon

Properties of calcium carbonate filled and unfilled polystyrene foams prepared using supercritical carbon dioxide

2006 ◽  
Vol 102 (3) ◽  
pp. 2276-2284 ◽  
Author(s):  
Fang-Chyou Chiu ◽  
Sun-Mou Lai ◽  
Chang-Ming Wong ◽  
Chaio Hui Chang
Keyword(s):  
Carbon Dioxide ◽  
Calcium Carbonate ◽  
Supercritical Carbon Dioxide ◽  
Supercritical Carbon

Foaming behavior of the fluorinated ethylene propylene copolymer assisted with supercritical carbon dioxide

2020 ◽  
pp. 0021955X2096400
Author(s):  
Zi-yin Jiang ◽  
Yun-fei Zhang ◽  
Chang-jing Gong ◽  
Zhen Yao ◽  
Abhinaya Shukla ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Saturation Pressure ◽  
Nucleating Agent ◽  
Expansion Ratio ◽  
Cell Diameter ◽  
Ethylene Propylene ◽  
Foaming Behavior ◽  
Fluorinated Ethylene Propylene ◽  
Supercritical Carbon

Foaming behavior of the fluorinated ethylene propylene copolymer (FEP) and its composites assisted with supercritical carbon dioxide (scCO2) as the blowing agent were investigated. The batch foaming process was applied at temperature ranging from 250°C to 265°C and pressure ranging between 12 MPa and 24 MPa. The optimal foaming temperature and saturation pressure were obtained for both pure FEP and FEP composites with 1 wt% different-sized BaTiO3 as nucleating agent. The cell diameter of pure FEP foam ranging from 80–140 µm was observed while the cell diameter decreased to 20–40 µm after adding BaTiO3 particles. The cell density of foamed FEP with BaTiO3 increased significantly from 106 to 108 cells/cm3 and the expansion ratio ranged between 4.0 and 5.5. Moreover, a decrease in an abnormal phenomenon that expansion ratio for the pure FEP foam was observed as the saturation pressure increased. This unexpected phenomenon can be explained by the relationship between foaming and crystallization coupling processes.

Sign in / Sign up

Export Citation Format

Share Document