The Thermostabilization of Polyoxymethylene Through Amine Treatment

摘要

The thermostabilization of polyoxymethylene(POM)through amine treatment was studied by the measurements of isothermal weight loss,formaldehyde emission amount,balance torque,multiple processing and long-term aging analysis.The results showed that due to its chemical property,triethanolamine played the role of deactivator for residual initiator of POM,the absorbent for formaldehyde and formic acid produced by POM degradation,and it also helped to remove the unstable end groups of POM.Melting treatment with triethanolamine was a simple and effective processing method,and the thermostability of POM can be improved efficiently.