Abstract
In present study the smart glass films whose feed ratio based on Nemetic liquid crystal (LC) and epoxy resins
through the polymerization induced phase separation (PIPS) technique. Study the applications in display
technology to inspect the morphological activities and refractive indices of epoxy resins based PDLC films (Smart
Glass) using Tris(hydroxymethyl)amine as catalyst. In this study, best possible preparation condition was 20%
LC, curing time 5 hrs at 90°C temperature. In this research, the refractive index of the domain size of PDLC films
was studied using Abbe Refractometer at ambient temperature. The Tris(hydroxymethyl)amine have distorted the
difference between the refractive indices of the polymer and the LC, and the aggregation increases the light
scattering that could develop the morphological characteristics of the composites. In addition, PDLC films were
prepared with different amounts of Tris(hydroxymethyl)amine to investigate the best ratio of the catalyst. It is
revealed that when the weight feed ratio of LC was 20% in PDLC and 2% of Tris(hydroxymethyl)amine catalyst,
then dispersed state of LC were well proportioned, and the variation of transmittance reached the highest value
which noticeably affect the morphological characteristics of the composites. The refractive index of polymer
matrix varied in the series due to the composition difference .Concurrently, these result lengthen the possible
applications of epoxy resins smart glass thin films by choosing accurate compositions ratio, heating time, and
catalyst reaction used for fabrications of smart films.
Mujtaba Ellahi, Muhammad Nawaz, M. Yasir Rafique. (2017) Morphological Study of PDLC Films with Refractive Index Using Catalyst, Pakistan Journal of Engineering and Applied Sciences, VOLUME 21, Issue 1.
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