PSI - Issue 70

R. Greesan et al. / Procedia Structural Integrity 70 (2025) 666–673

668

nature with more thermal stability performance. Cenosphere, by product of fly ash is the suitable ingredient to be used in preparation of Ceno PCM. It is generally spherical in structure having around 100-300µ size and it is applied in various industries because of its advantages like, excellent insulation, high thermal resistance, high strength and workability. Titanium dioxide (TiO2), also known as titanium (IV) oxide or titania, is a white pigment belonging to the transition metal oxide group, as reported by Zainab N et al. (2016). Widely present in paints and ceramics, it is incorporated into the Ceno PCM composite to obtain refined specimens.

Table.1 Properties of Paraffin

Content

Details

Appearance

Clear & Colourless

Form

Viscous

Density

0.86-0.90g/ml 110-230mpass

Viscosity

2.1. Synthesis Micro Encapsulation is the techniques implemented here by synthesize the materials via Ultra Sonication Method. Heavy Grade Liquid Paraffin and Cenosphere is taken in the proportion of 60:40 and 3% of TiO 2 is added to mixture and stirred well in ultrasonic homogenizer. The composite of gel type is generated after the vigorous stirring with the probes frequency at 5 sec in a temperature range of 30º to 35º. Then they obtained solution was continuously heated upto 80º C and aged for an hour without agitation. Finally, after the process of filtration, a mild white coloured powder was obtained and that’s the Ceno PCM with TiO 2 . The obtained powder was collected and subjected to further characterization analysis. 2.2. Characterizat ion Study SEM analysis is the technique of examining the particle size, shape and texture of given samples using Scanning Electron Microscopy (SEM). Vega3TESCAN microscope is utilized to get the morphological images of our obtained Ceno PCM to characterize main chemical groups involved in the physicochemical compatibility between Ceno PCM with TiO2 and EDX Analysis is involved for the purpose of analysing the elemental composition of PCM.Using a low vacuum and an acceleration voltage of 10 kV, the analysis aimed to investigate the surface characteristics of the support material and determine how Ceno PCM and TiO₂ are distributed across the matrix. The Peak Margin of EDX Spectra showed the constituents existing in the illustrations. The availed samples are undergone for thermal analysis via TGA – Thermo Gravimetrical Analysis to examine several thermal properties like thermal stability, reliability, conductivity etc., Strength parameters of PCM loaded mortar cubes are find out by Compression Testing Machine in the prescribed dimension and Curing periods. The chemical stability of the synthesized Ceno PCM composite with TiO₂ was confirmed using Fourier Transform Infrared Spectroscopy (FT-IR). The analysis was carried out with an FTIR instrument (model, Sastra University), focusing on identifying the functional groups present in the Ceno PCM. Scans were performed at room temperature over a wavenumber range of 400 – 4000 cm⁻¹, with a resolution of 2 cm⁻¹.. A thin film is prepared and analyzed with FTIR to obtain a spectrum Rudra Murthy BV amd Veershetty Gumtapure (2020). The crystalline structures of the pure components and the synthesized Ceno PCM with TiO₂ were analyzed using X -ray diffraction. The analysis was conducted at 45 kV and 40 mA, scanning the 2θ range from 0° to 70° with a step size of 0.0131°, as outlined by Ahmet Sarı et al. (2019). 2.3. Specimen Casting Details The specimen casting process consisted of preparing four batches of mortar cubes in the standard dimension of 70 mm x 70 mm x 70 mm. Each set of samples are prepared with right quantity of mortar mixture with different percentage level of PCM to find out its optimum level with the available results. Nominal curing process was