KES3-1336
Hydrogen Bonding Engineering and High-Performance Regulation in Polyamides
Topic
S3. Processing / Fabrications (Emerging Horizons in Polymer Processing and Fabrication)
When and Where
Sep 30, 2026
15:00 - 15:25
Room 104
Session Chairs
Dong Gi SEONG
Presenter(s)
Xia Dong (Institute of Chemistry Chinese Academy of Sciences)
Co-Author(s)
Abstract
Polyamide is semi-crystalline, and its crystallization ability comes from the linear molecular structure and strong hydrogen bonding interactions between the amide groups. A variety stacking forms of molecular chains and hydrogen-bonded sheets make polyamides exhibits polymorphism property, such as PA 66, PA 1012 and so on. This report presents the complex changes of crystallization and their impacts on subsequent applications. PA 6 and PA 66 is a common polyamide, but PA1012 is a kind of long-chain polyamide is a special type of polyamide engineering plastic. Compared with the common PA6 and PA66, it has the characteristics of lower melting point, wider processing window, lower moisture absorption rate, good chemical resistance, good dimensional stability, and excellent comprehensive mechanical properties. It is widely used in automotive water and oil pipes and backsheet membrane for solar cells, and so on. Since the domestic industrialization of long-chain polyamide was achieved in China several years ago, significant progress has been made in the structural and performance evolution during processing, crystal form transformation and regulation, and the development of downstream application performance of this material. This paper will focus on the study of the relationship between the structure and properties of long-chain polyamides, as well as their applications in fields such as fibers, films, and pipes, and will also discuss their future development directions.
KEYWORDS
Hydrogen bonding interaction; Crystallization; Polyamide; Long chain polyamides (LCPAs)
KEYWORDS
Hydrogen bonding interaction; Crystallization; Polyamide; Long chain polyamides (LCPAs)
