High heat resistance and good melt spinnability of a polyamide 66 containing benzene structure. Issue 20 (20th September 2021)

• Record Type: Journal Article
• Authors: Ma, Yuanyuan; Zhang, Jingnan; Cao, Xinyu; Wu, Pengfei; Ye, Gang; Fu, Yang; Zhuang, Yafang; Zhang, Aiqing; Zheng, Kun; Ma, Yongmei
• Is Part Of: Materials advances. Volume 2:Issue 20(2021)
• Page Start: 6647
• Page End: 6654
• Publication Date: 2021-09-20
• Subjects: 620.11
• DOI: 10.1039/d1ma00420d
• Languages: English
• ISSNs: 2633-5409

Abstract

Abstract : A polymer based bag filter with high temperature resistance plays a key role in dust and acid gas treatment in the power industry. Abstract : A polymer based bag filter with high temperature resistance plays a key role in dust and acid gas treatment in the power industry. Currently, the polymers used for preparing filters with improved heat resistance include those with a high content of aromatic units. But the aromatic structure inevitably leads to a high melting point, which is disadvantageous for melt spinning. Here, we report a polyamide 66 and polyamide 6T copolymer (PA66- co -PA6T) fiber with both high thermal stability and good spinnability. The retention rates of heat resistance of fibers after heat treatment at 185 °C and 200 °C were higher than 97.8% and 88.4%, respectively. This high thermal stability is ascribed to the high thermal degradation activation energy ( E ), which was confirmed by DSC, TG, and XRD characterization studies and fitting of kinetic data. PA66- co -PA6T with good melt spinnability, high heat resistance strength and low cost is expected to be applied in high-temperature resistance filtration equipment such as bag filters, expanding the application range of PA66 materials.