| 학회 |
한국화학공학회 |
| 학술대회 |
2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 |
28권 1호, p.602 |
| 발표분야 |
[주제 9] 에너지 전환 |
| 제목 |
Enhanced Triboelectric Nanogenerators via Phase Separation of Florine-Rich Polymers from Sulfur-Rich Polymers |
| 초록 |
High electron affinity (EA) of negative triboelectric materials is strongly correlated with the enhancement of triboelectric nanogenerators (TENGs). Backbone of conventional negative polymers for TENG comprises carbon (EA= −122 kJ/mol) for example polytetrafluoroethylene (PTFE). In order to design an extremely negative triboelectric material, we previously reported sulfur-backbone polymers (EA of S= −200 kJ/mol) with direct surface fluorination (EA of F= −322 kJ/mol). However, this direct surface fluorination requires the use of highly reactive, explosive, and hazardous fluorine gas. Herein, we introduce a toxic-gas-free strategy for high fluorine concentration on the surface of a polymer blend film through phase separation of the fluorine-rich polymers from the sulfur-rich polymer matrices. By hot-press processing, physically mixed fluorine-rich polymers are migrated to the hydrophobic air interface, thereby capable of an increase in the surface coverage of fluorine of the blend films. The blend film-based TENGs achieve 8-fold and 9-fold higher voltage and current outputs, respectively, than those of PTFE-based TENG with a similar film thickness. |
| 저자 |
원수경, 최진혁, 윤혁준, 이종혁, 장혜운, 전지수, 김아영, 박상혁, 육지호, 이민백, 위정재
|
| 소속 |
인하대 |
| 키워드 |
고분자(Polymer) |
| E-Mail |
|
| 원문파일 |
초록 보기 |
