The main raw material for nylon filament is nylon, which is a fiber made by polymerizing polyamide. The specific raw material process usually includes:
The main raw material for nylon filament is nylon, which is a fiber made by polymerizing polyamide. The specific raw material process usually includes:
The synthesis of polyamide mainly involves the polymerization reaction of adipic acid and hexamethylenediamine at a certain temperature and pressure to form polymer polyamide chains. After appropriate spinning processes, these polyamide materials can generate high-strength nylon fibers.
Spinning process: The polyamide melt or solution is drawn into fibers through a spinneret, and the morphology is controlled during the cooling process.
Hollow fiber processing: The key process of hollow fiber processing is to form hollow structures or surface specific void structures in nylon fibers during spinning or later processing. This process may involve physical methods (such as airflow stretching), chemical methods (such as solvent treatment), or heat treatment techniques.
The raw materials used for nylon filament can be divided into two categories:
Basic nylon raw materials: such as adipic acid, hexamethylenediamine, etc.
Additives: such as plasticizers, modifiers, etc., can be added during the spinning process to help improve the processing performance of fibers or make them easier to form voids.