Impact of MTA blend % in melt spinning process and polyester properties

摘要

In Polyethylene terephthalate (PET) processing the raw materials are purified terephthalic acid (PTA), moderately purifiedterephthalic acid (MTA), monoehalene glycol (MEG). The processing of PTA is very difficult and costly. For reducing PTApercent we are using different percentages of MTA blend in PET processing. MTA affected the properties of polyesterand melt spinning process. The properties such as elongation, tenacity, molecular chain length, b-color and IV, thermalproperties, % carboxyl groups will change with MTA percentage. MTA percentage also affects fiber breakage percentages, the melting point of PET. FTIR results show a change in chemical composition. Particle size, 4-CBA content of MTAaffects the properties of the fiber.