Synthesis and Application of Novel Functional Material as Leather Flame Retardant

Abstract

A novel leather flame retardant was successfully synthesized from pentaerythritol, phosphorus oxychloride, melamine and tetrakis-hydroxymethyl phosphonium chloride (THPC) by three steps. Its structures and properties were characterized by FT-IR, elementary analysis, mass spectrometry, DSC and TG. It was applied to the manufacture of flame-retardant leather. The flame-retardant properties were investigated by the Limit Oxygen Index (LOI) test and Vertical Flame test. The effects of the flame retardant on physical-mechanical and handle properties of leather were evaluated at different conditions. The results show that this novel flame-retardant material can effectively inhibit leather burning, increase leather thermal stability and has effective flame retardant property. Furthermore, it has good synergistic effect for improving leather properties like fullness, softness, grain tightness, thus can meet requirements for leather flame-retardant technology.