Polyvinylidene fluoride/polysulfone/air plasma defected hexagonal boron nitride emerging nano blends for electrostatic dissipation

• Published in: Journal of applied polymer science 2022-12, Vol.139 (45), p.n/a
• Main Authors: Humbe, Shankar S., Joshi, Girish M., Deshmukh, Rajendrasingh R., Kaleemulla, Shaik
• Format: Article
• Language: English
• Subjects: Air plasma; Boron nitride; Contact angle; dielectric properties; Dispersion; Dissipation; Electric contacts; Electrical resistivity; Electronic devices; Electrostatic discharges; Fillers; Fluorides; Glass transition temperature; graphene and fullerenes; Materials science; Mechanical properties; Microscopy; Modulus of elasticity; nanotubes; Plasma; Polymer blends; Polymer matrix composites; Polymers; Polysulfone resins; Polyvinylidene fluorides; Raman spectroscopy; Softness; Spectrum analysis; structure‐property relationships; Surface energy; Surface roughness; Tensile strength; Thermal stability
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.53113

In the present era electrostatic dissipation (ESD) property is crucial for packaged electronic device to protect from humidity over long duration. It was important to control the ESD for better integrated packaged electronic gadgets. Polymer blends and composites were modified with nano fillers as a promising area for ESD applications. In the present investigation, polyvinylidene fluoride (PVDF)/polysulfone (PSF) was modified by untreated (UT) and air plasma treated (PT) hexagonal boron nitride (h‐BN) by solution dispersion method. Spherulitic morphology of nano blends was foreseen through scanning electron microscopy. Surface topography was investigated by atomic force microscopy. Surface roughness was decreased due to plasma exposure. Phonon vibrations and Raman active mode of nano blends were confirmed by Raman spectroscopy mutually supporting ESD phenomenon. Increased electrical conductivity and semicircular impedance pattern of modified blends reveals an excellent ESD property disclosed by impedance spectroscopy. Moderate increased surface energy and decreased relative contact angle of modified blends may be due to the incorporation of polar groups during plasma exposure was confirmed by surface goniometer. Mechanical properties of nano blends were evaluated by universal testing machine. Increased 10–27% tensile strength and 34–55% Young's modulus of plasma treated admix composition. Softness of polymer nano blends was increased (20%) due to excellent interaction of filler and polymer host system were tested by Shore “A” durometer. Increased glass transition temperature (Tg = 16 and 30°C as function of treatment time) in view of thermal stability of modified nano blends were analyzed by thermogravimetric technique. Hence the PT h‐BN dispersed PVDF/PSF emerging polymer nano blends would be a choice for the new development for electrostatic dissipation applications.