High-Density Polyethylene Composites Filled with Nanosilica Containing Immobilized Nanosilver or Nanocopper: Thermal, Mechanical, and Bactericidal Properties and Morphology and Interphase Characterization

Table 7

Tensile, flexural and impact properties of HDPE and the HDPE composites containing Ag-SiO₂ or Cu-SiO₂; tensile and flexural testing speed 5 mm/min.

Property	HDPE	Ag-SiO2 (wt.%)		Cu-SiO2 (wt.%)
		10	15	10	15
Tensile strength (MPa)	23±0.2	26±0.1	27±0.3	26±0.3	27±0.3
Elongation at break (%)	438±20	149±12	42±11	145±18	32±3
Tensile modulus (MPa)	1390±12	1520±10	1600±14	1570±16	1690±18
Flexural strength (MPa)	18±0.2	24±0.3	25±0.2	23±0.4	25±0.5
Flexural modulus (MPa)	640±10	898±14	950±12	893±28	949±15
Charpy impact strength (kJ/m^2)	4.0±0.2	4.0±0.6	4.1±0.3	3.6±0.3	3.2±0.4