<abstract xmlns="http://www.w3.org/1999/xhtml">This study examined effect of inclusion of expanded graphite (Exp-G) on morphology, thermal, mechanical and flame retardant properties of PS, nitro-substituted polystyrene (N-PS) and amino-functional polystyrene (A-PS). FESEM showed exfoliated sheet morphology due to intercalation of N-PS and A-PS in expanded galleries. Tensile strength of A-PS materials (31.5-56.9 MPa) was higher than PS and N-PS. 10 % weight loss of A-PS nanocomposites (482-518 °C) was higher relative to pristine polymer and other nanocomposites. Cone calorimetry results revealed that there was lowering in PHHR of A-PS nanocomposites with 0.5 wt.% filler (428 kW/m2), while PS nanocomposites showed PHHR of 443 kW/m2.</abstract>

This study examined effect of inclusion of expanded graphite (Exp-G) on morphology, thermal, mechanical and flame retardant properties of PS, nitro-substituted polystyrene (N-PS) and amino-functional polystyrene (A-PS). FESEM showed exfoliated sheet morphology due to intercalation of N-PS and A-PS in expanded galleries. Tensile strength of A-PS materials (31.5-56.9 MPa) was higher than PS and N-PS. 10 % weight loss of A-PS nanocomposites (482-518 °C) was higher relative to pristine polymer and other nanocomposites. Cone calorimetry results revealed that there was lowering in PHHR of A-PS nanocomposites with 0.5 wt.% filler (428 kW/m2), while PS nanocomposites showed PHHR of 443 kW/m2.

Novel Mechanically Stable, Heat Resistant and Nonflammable Functionalized Polystyrene/Expanded Graphite Nanocomposites

Nanosciences and Catalysis Division, National Centre For Physics, Quaid-i-Azam University Campus, 44000, Islamabad, Pakistan.

Department of Chemistry, Hazara University, Pakistan

Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan

Advances in Materials Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

This study examined effect of inclusion of expanded graphite (Exp-G) on morphology, thermal, mechanical and flame retardant properties of PS, nitro-substituted...

Novel Mechanically Stable, Heat Resistant and Nonflammable Functionalized Polystyrene/Expanded Graphite Nanocomposites

Published Online: Dec 20, 2014

Page range: 61 - 74

DOI: https://doi.org/10.2478/adms-2014-0022

© by A. Kausar

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.