Unknown

Dataset Information

0

A Novel Method for Fabricating Wearable, Piezoresistive, and Pressure Sensors Based on Modified-Graphite/Polyurethane Composite Films.


ABSTRACT: A wearable, low-cost, highly repeatable piezoresistive sensor was fabricated by the synthesis of modified-graphite and polyurethane (PU) composites and polydimethylsiloxane (PDMS). Graphite sheets functionalized by using a silane coupling agent (KH550) were distributed in PU/N,N-dimethylformamide (DMF) solution, which were then molded to modified-graphite/PU (MG/PU) composite films. Experimental results show that with increasing modified-graphite content, the tensile strength of the MG/PU films first increased and then decreased, and the elongation at break of the composite films showed a decreasing trend. The electrical conductivity of the composite films can be influenced by filler modification and concentration, and the percolation threshold of MG/PU was 28.03 wt %. Under liner uniaxial compression, the 30 wt % MG/PU composite films exhibited 0.274 kPa-1 piezoresistive sensitivity within the range of low pressure, and possessed better stability and hysteresis. The flexible MG/PU composite piezoresistive sensors have great potential for body motion, wearable devices for human healthcare, and garment pressure testing.

SUBMITTER: He Y 

PROVIDER: S-EPMC5551727 | biostudies-other | 2017 Jun

REPOSITORIES: biostudies-other

Similar Datasets

| S-EPMC6446598 | biostudies-literature
| S-EPMC7022938 | biostudies-literature
| S-EPMC7001120 | biostudies-literature
| S-EPMC6220255 | biostudies-literature
| S-EPMC7221763 | biostudies-literature
| S-EPMC10535873 | biostudies-literature
| S-EPMC7105525 | biostudies-literature
| S-EPMC6199084 | biostudies-literature
| S-EPMC8778349 | biostudies-literature
| S-EPMC8198087 | biostudies-literature