Graft Copolymerization of Acrylamide onto Polyester-Cotton Blended Fabric by Using Potassium Permanganate Redox System

Abstract:

The graft copolymerization of acrylamide onto polyester-cotton blended (PCB) fabric by using potassium permanganate (KMnO4) redox system was carried out. Effects of various parameters, such as concentration of monomer and initiator, reaction time and temperature on grafting were studied. The grafting percentage increased significantly with the increase of the concentration of acrylamide up to 1 mol/L and decreased after that. The graft yields increased steply with the increase of reaction time up to 3h and then increased progressively. The rate of grafting was also dependent on reaction temperature, it increased with the temperature up to 60°C, then the rate of increase gradually slowed down. The chemical structure of grafted surface of the PCB fabric was characterized by infrared (IR) spectroscopy and scanning electron microscope. The fire performance was investigated by the LOI and the vertical flammability tests, and the results indicate that the grafting treatment could improve the flame retardancy. Thermal behavior of grafted fabric samples was evaluated by Thermogravimetric (TG) and differential thermogravimetric (DTG).

• Periodical: Advanced Materials Research (Volume 627)
• Pages: 205-211
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.627.205
• Online since: December 2012
• Authors: Li Na Wang, Xian Lin Xu, Yuan Lin Ren, Xiao Yang Sui
• Keywords: Graft Copolymerization, Polyester-Cotton Blended Fabric, Thermal Degradation

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