Fabrication of polysiloxane based stretchable ink filled with silver nanoparticles
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Date
2018-06
Authors
Siew, Tuck Seong
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Abstract
Stretchable conductive ink is one of the developing technology for the recent decades. In
this research, stretchable conductive composite is prepared by using
polydimethylsiloxane (PDMS) as substrate and silver nanoparticles (AgNPs) as the
conductive material. The ingredients used for the substrate preparation are
polydimethylsiloxane-hydroxide (PDMS-OH), fumed silica, toluene, dibutyltin dilaurate
and 3-glycidoxypropyl-3 trimethoxysilane. The silver conductive ink was printed on the
PDMS substrate and cured at 80°C for 16 hours. Various tests have been conducted to
study and investigate the electrical, mechanical and chemical properties of the PDMS-Ag
composite. The PDMS-Ag sample shows low electrical resistance which reflects to good
conductivity of the sample upon stretching. Furthermore, the PDMS-Ag sample shows
reasonable low electrical resistance after various cycles of 50% strain stretching. Besides,
the PDMS-Ag composite also displays good interfacial bonding between PDMS matrix
and Ag conductive ink through the adhesion test.