Ph.D. (Pursuing) Nanotechnology- VJTI, Mumbai, M.Tech Production-VJTI, Mumbai, B.E. Mechanical- Pune University
RESEARCH INTERESTS
Nanotechnology, Production Engineering, Industrial Engineering
FUTURE PROJECTS
Effect of parametric variation in heat treatment methods of steels
Applications Invited
5
Scopus Publications
Scopus Publications
Thermal stability and crystallisation behaviour study for nanocomposite of polyphenylene sulphide with WS2, MoS2 nanofiller and PEGM as impact modifier Manoj Bhalwankar, Sachin A. Mastud, Ramadoss Marimuthu, Dinesh Amalnerkar Advances in Materials and Processing Technologies, 2024 Thermoplastic materials’ properties like mouldability, thermal stability, impact strength and thermal conductivity have played vital role in the study of nanocomposites in various fields of high-performance applications. Currently, Polyphenylene sulphide (PPS) based nanocomposites have attracted special attention in various automotive applications including automotive parts, coolant and fuel injection systems. The present study is aimed at improving the thermal stability of PPS polymer using lower weight% addition of dichalcogenides nanofillers like Tungsten Disulfide (WS2) and Molybdenum Disulphide (MoS2), prepared through melt compounding process using microcompunder and injection moulding steps. Addition of impact modifier poly-ethylene glycidyl methacrylate (PEGM) was explored while preparing the nanocomposites to enhance the mouldability. The weight loss and crystalline behaviour studies were performed using Thermo-Gravimetric analysis (TGA) and Digital Scanning Calorimetry (DSC) techniques. From the characterisation data, it was observed that the addition of specific nanofillers like WS2 has significant effect on the crystallization temperature(Tc), percentage of crystallinity(Xc) and degree of crystallinity(DOC). The PPS nanocomposite sample with 0.5 wt.% WS2 , yielded results viz. Tc as 232 °C, 30% of Xc and 66% DOC. The key outcome of this work includes greater thermal stability of nanocomposites by using lower weight percentage additions of nano-scale WS2 and MoS2.
Impact strength enhancement of PPS polymer matrix by synthesis of nanocomposite with WS2, MoS2 nanofillers, and impact modifier PEGM Manoj Bhalwankar, Sachin Mastud Polymer Plastics Technology and Materials, 2023 Polyphenylene sulfide (PPS)-based nanocomposites have attracted attention in various automotive applications. The present study is aimed at improving the impact strength of PPS polymer using the addition of nanofiller tungsten disulfide (WS2), molybdenum disulfide (MoS2), and impact modifier poly(ethylene glycidyl methacrylate) (PEGM), prepared through melt compounding. Nanocomposite of PPS+20 wt.% PEGM+0.5 wt.% WS2 produced results with an impact strength of 134.82 J/m compared to pure PPS (50.98 J/m). PEGM composition is varied from 10 to 50 wt.% to test the effect on impact strength. The key outcome is a higher impact strength of a nanocomposite by using lower weight percentage additions of WS2 and MoS2. Graphical Abstract
A review of factors affecting thermal conductivity and societal applications of pps matrix nanocomposites Manoj Bhalwankar, S. Mastud, S. Jadkar Techno Societal 2018 Proceedings of the 2nd International Conference on Advanced Technologies for Societal Applications, 2020 The objective of this review paper is to analyze the various factors affecting the TC of PNC such as polymer matrix-chain structure and crystallinity, nanofillers type and wt%, surface modification of nanofillers, matrix-nanofiller Kapitza resistance, interface properties, the effect of processing have been discussed at length. The TC improvement case studies of PPS-CNT, PPS-mBN/nBN have been explained. The often neglected role of the polymer matrix in TC improvement has been elaborated. As per Deby’s equation, to maximisze phonon free mean path, the establishment of 3 D phonon-electron thermal network is crucial for the improvement of TC. To maximize the TC and minimize processing problems of PNC due to higher filler loadings, the wt% of fillers should be optimized by formation of segregated structures of PNC is vital as fillers lie along interface of matrix rather than random dispersion.PPS matrix and a range of nanofillers have been analyzed for a combination to form a PNC aimed to improve TC.
A review on tensile properties of epoxy polymer matrix nanocomposites by pure and hybrid nanosilica reinforcements Pratik Sarode, Saurabh Bhombe, Swapnil Raskar, R. Raut, Manoj Bhalwankar Techno Societal 2018 Proceedings of the 2nd International Conference on Advanced Technologies for Societal Applications, 2020 The review paper compares the results of various nanofiller additions in epoxy resin matrix nanocomposite for improvement in tensile strength properties. The individual effect of nanosilica and MWCNTs are observed and compared with their hybrid combinations. The effect of functionalization on nanofiller is also analyzed. The case study reveals that the size and volume fraction of nanofiller plays a very vital role as higher filler sizes and loadings lead to agglomeration resulting in plastisizing effects. Due to beneficial mechanical properties of epoxy nanocomposites over conventional epoxy polymer,various societal applications of epoxy resins and their nanocomposites are enlisted.
