The Preparation and Characterization of High-Strength PMMA-Na₂SO₄ Composite Film

Abstract

PMMA-Na₂SO₄ composite films were prepared by a solvent casting method and were characterized by SEM, EDX, DSC, UTM, TG/DTA and FTIR techniques. From the SEM it is clear that Na₂SO₄ were well dispersed, having sizes ranging from micrometer to nanometer. EDX results confirm the presence of Na₂SO₄ particles in a polymer matrix. UTM studies show that the tensile strength of PMMA-Na₂SO₄ composite is better than pure PMMA. FTIR spectra indicates the strong interaction between C=O of PMMA and Na₂SO₄. According to DSC, TG/DTA analysis the thermal stability and glass transition temperature of PMMA-Na₂SO₄ has increased as compared with that of pure PMMA.

Keywords:

• Composite
• Film
• Na₂SO₄
• PMMA