Preparation and properties of new flame retardant hydrophilic polyester

The application of polyester fiber is restricted because of its disadvantages,mainly the low moisture regain,short of chromaticity,easy accumulation of electrostatic charge,easy pilling and easy burning.In order to improve the hydrophilicity of polyester fiber and flame retardant properties,highly hydrophilic polyester chips were prepared by using PTA,EG,the third monomer(SIPE),the fourth monomer(PEG) and the fifth monomer(hydrophilc agent).Flame-retardant and high hydrophilic polyester fibers were prepared by melt blend spinning of hydrophilic chips and flame retardant masterbatch containing CEPPA.Its flame retardant properties and hydrophilic properties were tested.The analysis results showed that the modified polyester chips exhibited similar thermal stability to that of PET,with contact angle smaller than 65°and limit oxygen index greater than 30%.The hydrophilic polyester has good hydrophilicity,thermal stability and flame retardant properties.