Thermal and Physical Properties of PVA-PEO Films Reinforced with Manganese Chloride Tetrahydrate

Mahmood, Rana; Hassien, Sabah

doi:10.25673/123592

Proceedings of International Conference on Applied Innovation in IT · 2026/03/31 · Vol. 14 · Issue 1 · pp. 477–483

Thermal and Physical Properties of PVA-PEO Films Reinforced with Manganese Chloride Tetrahydrate

Rana S. Mahmood, Sabah A. Salman and Alaa H. Hassien

📄 Download PDF DOI: 10.25673/123592

Abstract

This work describes the procedures for producing pure polymeric blend films (PVA-PEO) and polymeric blend films enhanced with MnCl2·4H2O salt at different weight ratios (10, 20, 30, 40, and 50 wt%) by the solution casting process. We examined the impact of the salt weight ratio on the thermal properties of all the reinforced polymeric mix films. The thermal conductivity coefficient (k) increases to 0.000474 W/m·ºK when the weight ratio of added MnCl2·4H2O salt is 10 wt%. Subsequently, the thermal conductivity coefficient continues to decrease when the weight ratio of additional MnCl2·4H2O salt increases. The inconsistency in the coefficient value may be attributed to the heterogeneity of the matrix material, stemming from the significant surface area of the MnCl2·4H2O salt. The differential scanning calorimetry (DSC) analysis of all reinforced polymeric blend films revealed that the glass transition temperature (Tg) and crystalline melting temperature (Tm) values demonstrate an erratic decrease as the weight ratio of added salt increases, with the pure polymeric blend film [PVA-PEO] exhibiting a Tg of 167.94 °C. The impact of the salt weight ratio on real density, apparent porosity, and water absorbance in all reinforced polymeric mix films was investigated. The results demonstrated that actual density rose with a raised salt weight ratio, whereas apparent porosity and water absorbance diminished as the salt weight ratio escalated.

Keywords

Blend Thermal Conductivity Glass Transition Temperature Crystalline Melting True Density.

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