Preparation of Layer-by-Layer Self-Assembled Coating Modified Polyethylene Terephthalate Fabric with Flame Retardancy and UV Protection based on ZnO Nanopaticles

A hybrid coating containing zinc oxide (ZnO) nanoparticles, polyethyleneimine and sodium alginate was fabricated on the surface of polyethylene terephthalate (PET) fabric using layer-by-layer (LbL) self-assembled method. The construction of ZnO based coating on the surface of PET fabric resulted reduced DTG peak value compared with that of pure PET. Compared with the pure PET fabric, 4 bilayers coating obviously improved the fire resistance of PET fabric, as evidenced by the obvious reduction (39%) of peak heat release rate. UV transmission intensities of ZnO coated PET fabrics are lower at 320–400 nm than that of pure PET fabric.