Preparation of alumina sewing thread and its mechanical properties
In view of the fiber fracture of alumina fiber in the process of tufting,four kinds of core-alumina sutures with different weave spacing(4,6,8,10 mm)are prepared by two-dimensional weaving technology.The surface morphology,wear resistance,hook strength and shear property are analyzed.The results show with the increase of weave spacing,the surface buckling degree of the core-alumina suture gradually increases.Compared with the alumina yarn,the performance of the core-alumina suture with weave spacing of 4 mm has the greatest performance improvement,with an average number of abrasion increased by 7.7 times,a maximum hook strength increased by 11 times,and a maximum shear strength increased by 7.4 times.