In order to improve the progress of easy to fluff and broken of carbon fiber suture in the suture process, surface modification of carbon fiber suture was used by sizing to improve the tensile strength and wear resistance. The tensile strength, flexural strength and wear resistance of carbon fiber suture with different concentration were measured. The surface hairiness of carbon fiber after abrasion test was observed, then the relationship between the concentration of slurry and the tensile strength and wea...