3 years ago

UV-induced surface grafting polymerization for preparing phosphorus-containing flame retardant polyacrylonitrile fabric

UV-induced surface grafting polymerization for preparing phosphorus-containing flame retardant polyacrylonitrile fabric
In order to improve the flame retardancy of polyacrylonitrile (PAN) fiber fabric, hydroxyethyl methacrylate (HEMA) was first grafted onto the surface of PAN fiber fabric (PAN-g-HEMA) using ultroviolet (UV)-induced photo graft polymerization technology. Then, the PAN-g-HEMA fabric was reacted with phosphoric acid catalyzed by urea, to successfully obtain the flame retardant PAN fiber fabric (FR-PAN-g-HEMA). The optimum process of grafting was obtained. The structure of the fabrics was characterized with FTIR, XRD, XPS and SEM. The thermal analysis indicates that FR-PAN-g-HEMA fabric has good fire retardant properties with an LOI value of 32%.

Publisher URL: www.sciencedirect.com/science

DOI: S0014305717308170

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