2 publications

• Published Subscription 15 Dec 2023

  Development of PU/Graphene Anticorrosion/antifriction coatings

  By Remya Balakrishnan, Monisha Kanjuchirayil, Nallaperumal Agasthialingom Meenakshi Sundary

  Abstract: Corrosion inhibition and reduction of frictional wear is a necessary requirement in launch vehicles. Organic coating proves to be the cheapest and most advantageous owing to its high mechanical resistance and high adhesion, better chemical stability, low permeability for corrosive components etc. Among the organic coatings reported, Polyurethane is found to be the most suitable candidate it being relatively durable, softer and more elastic than other organic coatings. However, graphene …

  Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 10, Issue 2, 2023 · pp. 45–56 Read article →

• Published Subscription 20 Apr 2020

  Studies on Modelling of Mechanical Properties of Polyester-based Semi-rigid Polyurethane Foams

  By Remya Balakrishnan, A. M. Nallaperumal, S. K. Manu, LityAlen Varghese

  Abstract: This paper describes the mechanical behaviour of castor oil based semi rigid polyurethane foams with relative density below 0.05moulded by varying isocyanate index (Isocyanate equivalent/hydroxyl equivalent) from 1:1 to 1:2. Mechanical properties of polyurethane foam mainly compressive strength is measured experimentally and the values were compared using three widely referred theoretical models namely: (i) the Empirical model (ii) Gibson and Ashby approach widely used for foam description and (iii) modified …

  Published in Journal of Polymer & Composites · Vol. 8, Issue 1, 2020 · pp. 77–86 Read article →