Optimization design method of material stiffness of contact interface considering surface roughness for improving thermal contact performance

Investigation of the surface mechanical properties of functionalized single-walled carbon nanotube (SWCNT) reinforced PDMS nanocomposites using nanoindentation analysis

“…Improvement in surface mechanical properties such as contact stiffness (S c ) is crucial for the reliable sensitivity of PDMS-CNT-based wearable sensors. [86][87][88] In addition, PDMS-CNT-based lab-on-a-chip devices and exible microuidic systems rely greatly on the elastic modulus and viscoelastic mechanics of the material system. [92][93][94][95][96] In the eld of mechanobiology, surface mechanical forces play a key role in maintaining tissue functions of the cells developed on PDMS substrates during and aer the developmental stage.…”

“…In applications where PDMS-SWCNT composites are used as sensors or actuators, the contact stiffness affects the sensitivity and responsiveness of the material. [86][87][88] S c is estimated by tting a regression function to the upper part of the unloading curve. It is correlated using the following equation.…”