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A new promising nucleating agent for polymer foaming: effects of hollow molecular-sieve particles on polypropylene supercritical CO2 microcellular foaming | |
Yang, Chenguang1,2,3; Wang, Mouhua1; Xing, Zhe1; Zhao, Quan1; Wang, Minglei1; Wu, Guozhong1,3 | |
2018 | |
发表期刊 | RSC ADVANCES |
ISSN | 2046-2069 |
卷号 | 8期号:36页码:20061-20067 |
发表状态 | 已发表 |
DOI | 10.1039/c8ra03071e |
摘要 | Because polypropylene (PP) foam normally exhibits nonuniform cell size and cracked cellular structure, a narrow cell-size distribution and a well-defined morphology are always the focus of PP foaming technology. In this work, hollow molecular-sieve (MS) particles were applied as a potential nucleating agent in supercritical carbon dioxide (scCO(2)) foaming of PP. It was observed that the addition of MS particles largely narrowed the cell-size distribution. The resultant PP/MS foams exhibited significant concurrent enhancement in their cell density and mechanical properties: the cell density increased remarkably, by approximately 10 times, and the tensile strength increased from 6.1MPa to 12.6 MPa. The hollow-structure MS particles resulted in a higher heterogeneous nucleation efficiency in the PP foaming process. We believe that the trapping of CO2 in the hollow holes of MS particles largely increased the solubility CO2 in PP and a number of gas cavities were formed. The existence of gas cavities reduced the energy barrier of heterogeneous nucleation, favoring the formation of a well-defined cellular structure. Additionally, the regular-hexagon shape of the cells might endow the PP foam with better mechanical properties compared with a circular cell shape. |
收录类别 | SCI ; SCIE ; EI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[11079048] |
WOS研究方向 | Chemistry |
WOS类目 | Chemistry, Multidisciplinary |
WOS记录号 | WOS:000434390100020 |
出版者 | ROYAL SOC CHEMISTRY |
EI入藏号 | 20182405296420 |
EI主题词 | Carbon dioxide ; Cells ; Cellular automata ; Cytology ; Density (specific gravity) ; Mechanical properties ; Molecular sieves ; Nucleation ; Polypropylenes ; Sieves ; Size distribution ; Supercritical fluid extraction ; Tensile strength |
EI分类号 | Biological Materials and Tissue Engineering:461.2 ; Biomechanics, Bionics and Biomimetics:461.3 ; Computer Software, Data Handling and Applications:723 ; Chemical Operations:802.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Inorganic Compounds:804.2 ; Organic Polymers:815.1.1 ; Mathematics:921 ; Mathematical Statistics:922.2 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Crystal Growth:933.1.2 ; Materials Science:951 |
WOS关键词 | CARBON-DIOXIDE ; NANOCOMPOSITE FOAMS ; ISOTACTIC POLYPROPYLENE ; SIZE DISTRIBUTION ; IMPACT PROPERTIES ; CELL MORPHOLOGY ; EXTRUSION ; RADIATION ; CRYSTALLIZATION ; COMPOSITES |
原始文献类型 | Article |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/23086 |
专题 | 物质科学与技术学院 物质科学与技术学院_特聘教授组_吴国忠组 物质科学与技术学院_硕士生 |
通讯作者 | Wu, Guozhong |
作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, Jialuo Rd 2019, Shanghai 201800, Peoples R China 2.Univ China Acad Sci, Beijing 100049, Peoples R China 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China |
第一作者单位 | 物质科学与技术学院 |
通讯作者单位 | 物质科学与技术学院 |
推荐引用方式 GB/T 7714 | Yang, Chenguang,Wang, Mouhua,Xing, Zhe,et al. A new promising nucleating agent for polymer foaming: effects of hollow molecular-sieve particles on polypropylene supercritical CO2 microcellular foaming[J]. RSC ADVANCES,2018,8(36):20061-20067. |
APA | Yang, Chenguang,Wang, Mouhua,Xing, Zhe,Zhao, Quan,Wang, Minglei,&Wu, Guozhong.(2018).A new promising nucleating agent for polymer foaming: effects of hollow molecular-sieve particles on polypropylene supercritical CO2 microcellular foaming.RSC ADVANCES,8(36),20061-20067. |
MLA | Yang, Chenguang,et al."A new promising nucleating agent for polymer foaming: effects of hollow molecular-sieve particles on polypropylene supercritical CO2 microcellular foaming".RSC ADVANCES 8.36(2018):20061-20067. |
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