The Study On The Structure And Properties Of Multi-Components Polyester

In this paper, we added the third additive SIPM (5-sodium sulfonate dimethyl isophthalate), the fourth additive polyethylene glycol(PEG) and the fifth inorganic particle during the process of co-polymerization, synthesized different multi-component polyester choosing the proper reaction conditions. The effects of the contents of three additives on thermal property and rheological behaviors were studied. In view of the differences between the common PET and multi-components polyester, and through the discuss of the spinability of multi-component polyester, we spinned different additives -rations multi-components fibre through changing the spinning conditions. Dyeability and mechanic property were studied and explained theoretically.The paper proved that when the third additive SIPM and the fourth additive PEG is less than 3%, the fifth addtive BaSO4 less than l%(wt%) in the multi-component polyester, the property is better than CDP and ECDP, better mechanic property was obtained, the inorganic particles will be dropped and some micro-holes appear on the surface of fibre when dealed with alkaline solution which can increase the adsorption and spread of dye.