Study on the novel Modification of Polyester Fabrics with Sericin Protein

Abstract

To improve the hydrophobicity and antistatic property of polyester fabric, A novel sericin modifier was prepared by amino in the sericin reacting with epichlorohydrin in alkaline condition under the protection of N2. And then it was grafted onto the polyester fabric treated alkaline deweighting. The optimal technological conditions of sericin modifier were achieved through orthogonal design experiment. The polyester fabric treated with above mentioned sericin modifier not only had excellent antistatic performance, but also hygroscopicity property and so on. The surface charge of treated fabrics with and without sericin modifier were measured, which greatly reduced after finishing. And the contact angle declined obviously. The strength of the fabric treated alkaline deweighting reduced clearly from 519 N to 277 N, however, it reinstated the original strength because sericin modifier grafting onto the polyester fabric could prevent the movement of molecular chain. Alkaline deweighting of polyester fabric decreased fabric density which increased the gas permeability and still reinstated the good property after treating with sericin modifier. Infrared spectra (FTIR) showed that sericin modifier was fixed on the polyester fabric treated alkaline deweighting successfully.