Micro-structure porous electrolytes for highly responsive ionic soft actuators and artificial muscles고반응성 이온 소프트 액추에이터 및 인공 근육을 위한 미세 구조 다공성 전해액.

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Ionic soft actuators, are new type of actuator that bend due to the ion migration in a polymer electrolyte membrane under the electrical field generated by two sandwiching electrodes. This type of soft actuators have gained increasing attention because they have successfully been applied in many biomimetic soft robotics. However, further explorations require to enhance their performance, which, in turn, demands for strong and flexible polymer electrolytes with continuous conducting phases facilitating ion movement. Here, we report a simple technique to generate continuous conducting channels in polymer electrolytes by penetrating ionic liquid into the poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-co-HFP) porous micronetwork. While the PVDF-co-HFP skeleton provided mechanical strength and flexibility for the electrolyte membrane, the free movement of ionic liquids in the porous micronetwork enhanced actuation performance. Therefore, the as-prepared actuators showed better performance in comparison with those made of conventional PVDF-co-HFP electrolyte membranes such as a large tip displacement of 25 mm at 0.5 V, fast rise time of 2.5 s without back relaxation, good stability remaining 95 % of the original performance after 20,000 actuation cycles. This high performance enabled us to realize some complex deformation especially in the field of Ionic Soft Artificial Muscles.
Advisors
Oh, Ilkwonresearcher오일권researcher
Description
한국과학기술원 :기계공학과,
Publisher
한국과학기술원
Issue Date
2021
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학과, 2021.8,[iv, 34 p. :]

Keywords

Microstructural polymer membrane▼aMicrostructure electrolyte▼aArtificial Muscles▼aIonic electroactive soft actuators▼aSoft robotics▼aPVDF-co-HFP porous membrane; 미세구조 고분자막▼a미세구조 전해질▼a인공근육▼a이온 전기 활성 연화기▼a소프트 로봇 공학▼aPVDF-co-HFP 다공성 막

URI
http://hdl.handle.net/10203/295033
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=963765&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
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