Preparation and electroactive phase adjustment of Ag-doped poly(vinylidene fluoride) (PVDF) films

被引：10
|
作者：
Kim, Seung-Hyun [1 ,2 ]
Park, So-Jeong [1 ]
Cho, Chang-Yeol [1 ]
Kang, Hong Suk [1 ]
Sohn, Eun-Ho [1 ]
Park, In Jun [1 ]
Ha, Jong-Wook [1 ]
Lee, Sang Goo [1 ]
机构：
[1] Korea Res Inst Chem Technol, Interface Mat & Chem Engn Res Ctr, Daejeon 34114, South Korea
[2] Sungkyunkwan Univ, Sch Chem Engn, Suwon 16419, South Korea
来源：
RSC ADVANCES | 2019年 / 9卷 / 69期
关键词：
FLEXIBLE PIEZOELECTRIC NANOGENERATOR; SILVER NANOPARTICLES; CRYSTALLINE PHASE; LAYER; BETA; MEMBRANE; ALPHA;
D O I：
10.1039/c9ra08763j
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The crystallinities of Ag-doped poly(vinylidene fluoride) (PVDF) films were modified by removing Ag+ using a novel washing process, which allowed control of the ratio of gamma- and beta-phases. The polarity of the composite film without Ag+ removal through the washing process reached 98%, and the beta-phase content in the total electroactive phase was increased to 61%, according to Fourier-transform infrared spectroscopy. When Ag+ were removed through a process involving several cycles of washing, filtering, drying, and re-dissolving, the highest ratio of the gamma-phase was increased to 67%, 28% higher than that before washing. This showed that Ag+ induced beta-phase formation while Ag nanoparticles induced gamma-phase formation, and that the ratio of gamma- and beta-phases in PVDF composite films can be controlled to suit specific applications by this washing process.
引用
收藏
页码：40286 / 40291
页数：6
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