Encapsulating eutectogels for stretchable humidity-resistant strain sensors

Wan, Xiaodong1,2,3; He, Yunfeng1; Li, Caicong1; Yang, Canhui1

2023-03-01

10.1039/d3sm00026e

SOFT MATTER   影响因子和分区

1744-683X

1744-6848

Eutectogels are stretchable ionic conductors extensively developed in recent years, owing to their distinct advantages of low cost, non-volatility, non-toxicity, and outstanding biocompatibility. However, the susceptibility to humidity caused by the exchange of water molecules between the interiors of eutectogels and the external environment greatly restricts their practical applications. Here, a dip-coating strategy is proposed to fabricate a P(MEA-co-IBA) elastomer-coated P(AAC-co-AAM) eutectogel to achieve satisfactory humidity-resistant capability. The hydrophobic elastomer coating significantly suppresses water exchange without harming the stretchability (>500%) and conductivity of the eutectogel. Strong adhesion forms at the eutectogel-coating interface due to the formation of an interpenetrating layer. The superior electromechanical performances of encapsulated eutectogels enable stretchable ionotronic devices with stable electrical performance (>1 h) and remarkable water-droplet/moist resistances during static/dynamic loadings. A humidity-resistant encapsulated eutectogel-based wearable strain sensor is further demonstrated. The proposed humidity-resistant eutectogels are promising candidates for soft and wearable ionotronics for practical applications.

SCI ; EI

英语

第一 ; 通讯

Featured Innovation Projects of General Colleges and Universities in Guangdong Province[2021KTSCX109] ; Stable Support Plan Program of Shenzhen Natural Science Fund Grant[K21326303] ; Science, Technology, and Innovation Commission of Shenzhen Municipality[ZDSYS20210623092005017] ; National Natural Science Foundation of China[51705180]

Chemistry ; Materials Science ; Physics ; Polymer Science

Chemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Multidisciplinary ; Polymer Science

WOS:000954437700001

ROYAL SOC CHEMISTRY

20231613898189

Biocompatibility ; Coatings ; Elastomers ; Wearable sensors

Immunology:461.9.1 ; Coating Materials:813.2 ; Elastomers:818.2 ; Atomic and Molecular Physics:931.3

Web of Science

1.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen Key Lab Soft Mech & Smart Mfg, Shenzhen 518055, Peoples R China
2.Chinese Acad Sci, Shenzhen Inst Adv Technol, Guangdong Prov Key Lab Robot & Intelligent Syst, na, Shenzhen 518055, Peoples R China
3.Shenzhen Inst Artifcial Intelligence & Robot Soc, SIAT Branch, Shenzhen 518055, Peoples R China

Wan, Xiaodong,He, Yunfeng,Li, Caicong,et al. Encapsulating eutectogels for stretchable humidity-resistant strain sensors[J]. SOFT MATTER,2023,19(14):2570-2578.

Wan, Xiaodong,He, Yunfeng,Li, Caicong,&Yang, Canhui.(2023).Encapsulating eutectogels for stretchable humidity-resistant strain sensors.SOFT MATTER,19(14),2570-2578.

Wan, Xiaodong,et al."Encapsulating eutectogels for stretchable humidity-resistant strain sensors".SOFT MATTER 19.14(2023):2570-2578.