Characteristics of Bulletproof Vests Made from COPEFB Fiber: Implications on Mechanical, Electrical, and Physical Resistance

Table 3

Mechanical properties of twisted yarn at various diameters.

Mechanical properties	Variation of diameter twisted yarn (mm)			SNI test standard [3]
	1	3	6
Tensile (kgf)	3.55 ± 0.95	13.35 ± 1.65	56.75 ± 7.68	7650-2010
Strain (%)	20.13 ± 5.76	45.57 ± 7.89	65.98 ± 4.19	7650-2010
Elongation (mm)	50.42 ± 14.40	113.98 ± 19.79	165.13 ± 10.51	7650-2010

Source: data of this research.