Effect of the selective localization of carbon nanotubes in polystyrene/poly(vinylidene fluoride) blends on their dielectric, thermal, and mechanical properties
文献类型：期刊论文
| 作者 | Zhao, Xiaodong1; Zhao, Jun1; Cao, Jian-Ping1; Wang, Dongrui1; Hu, Guo-Hua2; Chen, Fenghua3,4; Dang, Zhi-Min1 |
| 刊名 | MATERIALS & DESIGN
 |
| 出版日期 | 2014-04-01 |
| 卷号 | 56页码:807-815 |
| 关键词 | Polymer Blends Dielectric Constant Carbon Nanomaterials |
| ISSN号 | 0261-3069 |
| DOI | 10.1016/j.matdes.2013.11.073 |
| 英文摘要 | The selective localization of multiwalled carbon nanotubes (MWNTs) in immiscible polystyrene (PS)/ poly(vinylidene fluoride) (PVDF) blends (volume ratio of both components is 1/1) and its effect on composites' dielectric, thermal, and mechanical properties are systematically studied. Employing two-step mixing process can make MWNTs localize in PS or PVDF phase successfully. When three components are simply mixed together by one-step processing, the MWNTs are selectively distributed in PVDF phase, which is supported by the dielectric measurements and the SEM observations and is consistent with the wetting coefficient evaluation. For the two-step mixing, when the fillers are first mixed with PS in the first step, some of them will migrate into PVDF phase in the second step although the migration is very slow. When the overall volume fraction of MWNTs is 3.9 vol%, the selective localization of MWNTs in PVDF phase produces higher dielectric constant (e0, ca. 485) than the case when the fillers are only in PS phase (e0 of ca. 16) at 100 Hz and room temperature of 25 degrees C. Differential scanning calorimetry (DSC) measurements and mechanical tests show that the selective localization of all the fillers in PVDF phase produces little change of the melting point and crystallinity of PVDF component but slightly higher tensile strength. In contrast to the one-step mixing process, the two-step mixing to selectively localize the fillers in their favorite phase could be used to control the dielectric and mechanical properties of the materials. (C) 2013 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000331721100101 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/52355]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Dang, Zhi-Min |
| 作者单位 | 1.Univ Sci & Technol Beijing, Sch Chem & Biol Engn, Dept Polymer Sci & Engn, Beijing 100083, Peoples R China 2.Univ Lorraine, CNRS, Lab React & Genie Proc, UMR 7274,ENSIC, F-54000 Nancy, France 3.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, Beijing Natl Lab Mol Sci,CAS Key Lab Engn Plast, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Xiaodong,Zhao, Jun,Cao, Jian-Ping,et al. Effect of the selective localization of carbon nanotubes in polystyrene/poly(vinylidene fluoride) blends on their dielectric, thermal, and mechanical properties[J]. MATERIALS & DESIGN,2014,56:807-815. |
| APA | Zhao, Xiaodong.,Zhao, Jun.,Cao, Jian-Ping.,Wang, Dongrui.,Hu, Guo-Hua.,...&Dang, Zhi-Min.(2014).Effect of the selective localization of carbon nanotubes in polystyrene/poly(vinylidene fluoride) blends on their dielectric, thermal, and mechanical properties.MATERIALS & DESIGN,56,807-815. |
| MLA | Zhao, Xiaodong,et al."Effect of the selective localization of carbon nanotubes in polystyrene/poly(vinylidene fluoride) blends on their dielectric, thermal, and mechanical properties".MATERIALS & DESIGN 56(2014):807-815. |
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来源：化学研究所
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