CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Morphology of irradiated PMMA membranes prepared by phase inversion with supercritical CO2
Tang Zhongfeng; Chen Youshuang; Qiu Guangnan; Tong Bin; Li Hua; Tang Xiaoxing; Kong Xiangbo
2013
Source PublicationNUCLEAR SCIENCE AND TECHNIQUES
ISSN1001-8042
Volume24Issue:6
AbstractPoly (methyl methacrylate) (PMMA) pellets are irradiated using Co-60 gamma-ray in air and successfully formed by hot pressing at constant conditions. The irradiated PMMA membranes are prepared by supercritical carbon dioxide (scCO(2)) as a physical blowing agent using the pressure quench method. Effects of foaming conditions such as adsorbed dose, saturation temperature, pressure on the morphology and cell size of the microcellular PMMA membranes are investigated in detail. The results showed that the irradiated PMMA membranes possess spherically closed-cell structure with uniform cell size. They have a high cell density compared with virgin PMMA. The cell size uniformity becomes poor at dose lower than 10 kGy, but increases with the dose at dose higher than 10 kGy. The mean cell diameter is less than 10 mu m and the cell density increases with increasing dose. The average cell size of irradiated PMMA membranes decreases and cell density increases with increased saturation temperature and pressure. The changes in morphology of membranes are attributed to the gamma-ray radiation and scCO(2) synergistic effect.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000333230600007
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13829
Collection中科院上海应用物理研究所2011-2020年
Recommended Citation
GB/T 7714
Tang Zhongfeng,Chen Youshuang,Qiu Guangnan,et al. Morphology of irradiated PMMA membranes prepared by phase inversion with supercritical CO2[J]. NUCLEAR SCIENCE AND TECHNIQUES,2013,24(6).
APA Tang Zhongfeng.,Chen Youshuang.,Qiu Guangnan.,Tong Bin.,Li Hua.,...&Kong Xiangbo.(2013).Morphology of irradiated PMMA membranes prepared by phase inversion with supercritical CO2.NUCLEAR SCIENCE AND TECHNIQUES,24(6).
MLA Tang Zhongfeng,et al."Morphology of irradiated PMMA membranes prepared by phase inversion with supercritical CO2".NUCLEAR SCIENCE AND TECHNIQUES 24.6(2013).
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