Abstract:

In order to reduce the weight of stab-resistant fabrics and improve its softness and flexibility, the hard particle coating was used to prepare the stab-resistant fabrics. SiC suspensions were prepared by using SiC hard particles. It is found SiC suspension is the most stable when the weight ratio of SiC powder particles, water and ethylene glycol is (1.5~2.5)：1：1, and its relative sedimentation height of 2 h suspension reaches 0.93. The SiC suspensions were used to coat the ultrahigh molecular weight polyethylene (UHMWPE) plain cloth. Quasi-static stabbing experiments were carried out on the coated fabrics. The influence of coating liquid ratio, original fabric density and the number of coating layers on fabric stab-resistance were carried out. It is found that the stab-resistance of the coated fabric decreased gradually with the increase of the mass ratio of the dispersing to the binder. The optimal weft and warp densities of the base cloth are both 100/(10 cm), and the coating number is 3. The influence of coating on fabric softness was anslyzed. At the same time, according to the fabric surface morphology, puncture appearance and puncture mechanical curve, it is found that the puncture strength of the coated fabric is higher than that of the original fabric, and it had a buffer effect, resulting in better stab-resistant property.

Key words: stab-resistant fabric, SiC hard particle, quasi-atatic stabbing