Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
DEGRADATION OF ARAMID FILAMENTS BY HYDROLYSIS
Submission Author:
Ignacio Melito , RS
Co-Authors:
Ignacio Melito, Fernanda Clain, Carlos Eduardo Marcos Guilherme, Antonio Henrique Monteiro da Fonseca Thomé da Silva
Presenter: Ignacio Melito
doi://10.26678/ABCM.COBEM2019.COB2019-0883
Abstract
Aramid fibers are among the fibers used for offshore mooring and operation system, thus being continuously exposed to a marine environment. This paper presents data regarding a study about the accelerated degradation of aramid yarns by hydrolysis in salt water, at a temperature of 80 ºC. Three different aramids were tested by their Yarn Breaking Loads throughout a 147 days period with regular tests, in accordance with the technical standard ASTM D 885-03: Standard Test Methods for Tire Cords, Tire Cord Fabrics, and Industrial Filament Yarns Made from Manufactured Organic-Base Fibers, and showed different hydrolysis resistance. Two proved to be hydrolysis resistant, as stated by the manufacturers, showing no signs of degradation and one showed a clear decrease in its Yarn Breaking Load, but still complying with the technical standard ISO 17920: Fibers ropes for offshore stationkeeping- Aramid.
Keywords
Aramid Fibers, Accelerated Degradation, Heated sea water, Hydrolysis, Mooring
