Energy harvesting of PZT/PMMA composite flexible films

Piezoelectric properties of zinc oxide/iron oxide filled polyvinylidene fluoride nanocomposite fibers

“…Such kind of devices are used as self-powering resources for electronic skin sensors, robotics and health care monitoring systems [5]. Piezoelectric nanogenerators (PENG) could harvest energy from acoustic waves and human activities other than mechanical vibrations to power liquid crystal displays and light emitting diodes [6][7][8][9].…”

Thermal insulation properties of lightweight, self-healing, and mesoporous carrageenan/PMMA cryogels

“…An additional small peak at 2856 cm −1 is due to –CH 3 stretching vibrations. 49,50 Moreover, the sharp absorption band that appeared at 1735 cm −1 is related to the ester carbonyl CO stretching vibration in PMMA. Medium intensity bands at 1276 cm −1 , 1245 cm −1 and 991 cm −1 are assigned to C–O stretching modes, 51 and the absorption at 1149 cm −1 is related to the C–O–C stretching vibration bonds of the ester group in PMMA.…”

“…Also, the band at 1454 cm −1 can be attributed to the bending vibration of the C-H bonds of the -CH 3 group. 50,55,56 In the FT-IR spectrum of CM and CM/PMMA cryogel (Fig. 2), the peaks at 1066 cm −1 and 1257 cm −1 correspond respectively to glycosidic linkage and sulfate ester groups, and the two well-dened bands at 927 cm −1 and 844 cm −1 indicating the presence of 3,6-anhydro-D-galactose and D-galactose-4-sulfate.…”

A plantar wearable pressure sensor based on hybrid lead zirconate-titanate/microfibrillated cellulose piezoelectric composite films for human health monitoring

“…[37][38][39][40][41][42] Sharma et al 43 prepared various PZT/polydimethylsiloxane (PDMS) composites by dispersing hard PZT powder with different volume fractions in a PDMS matrix, along with the addition of iron particles as the dispersion phase. Arul et al 44 prepared PZT/polymethyl methacrylate (PMMA) composite films by the solvent evaporation method. The films were characterized by XRD and FTIR and applied for creating wearable devices.…”