Nanoscale Effect of Zirconia Filler Surface on Mechanical Tensile Strength of Polymer Composites

Table 3 Tensile strengths and elongation capacities of 30 wt% PNIPAM hydrogel composites with 0.02 wt% polymer-impregnated ZrO₂ MARIMOs

Composite	Filler	Stress_MAX (kPa)	Strain_MAX (%)
5	HEMA-impregnated ZrO₂ MARIMO	6.1 ± 0.2	> 930^a
6	NIPAM-impregnated ZrO₂ MARIMO	5.9 ± 0.3	> 930^a
7	BMA-impregnated ZrO₂ MARIMO	7.9 ± 0.3	> 930^a
8	CHCA-impregnated ZrO₂ MARIMO	6.7 ± 0.2	> 930^a

^aThe percent elongation more than 930% means the limitation of tensile tester machine