Table 4.
Percentage difference in flexural modulus before and after treatment with ZnONPs.
| Sample | Flexural modulus (MPa) | Increment (%) | Decrement (%) |
|---|---|---|---|
| 1 layer prior and upon treating with 1% ZnONPs | 3000/3174 | 5.5% | – |
| 1 layer prior and upon treating with 2% ZnONPs | 3000/3288 | 8.8% | – |
| 1 layer prior and upon treating with 3% ZnONPs | 3000/2904 | – | 3.3% |
| 1 layer prior and upon treating with 4% ZnONPs | 3000/2819 | – | 6.4% |
| 1 layer prior and upon treating with 5% ZnONPs | 3000/2701 | – | 11.1% |
| 2 layer prior and upon treating with 1% ZnONPs | 3562/3794 | 6.1% | – |
| 2 layer prior and upon treating with 2% ZnONPs | 2562/3919 | 9.1% | – |
| 2 layer prior and upon treating with 3% ZnONPs | 3562/3401 | – | 4.7% |
| 2 layer prior and upon treating with 4% ZnONPs | 3562/3318 | – | 7.4% |
| 2 layer prior and upon treating with 5% ZnONPs | 3562/3157 | – | 12.8% |
| 3 layer prior and upon treating with 1% ZnONPs | 4003/4181 | 4.2% | – |
| 3 layer prior and upon treating with 2% ZnONPs | 4003/4316 | 7.3% | – |
| 3 layer prior and upon treating with 3% ZnONPs | 4003/3892 | – | 2.9% |
| 3 layer prior and upon treating with 4% ZnONPs | 4003/3704 | – | 8.1% |
| 3 layer prior and upon treating with 5% ZnONPs | 4003/3685 | – | 8.6% |
| 4 layer prior and upon treating with 1% ZnONPs | 4993/5171 | 3.5% | – |
| 4 layer prior and upon treating with 2% ZnONPs | 4993/5310 | 5.9% | – |
| 4 layer prior and upon treating with 3% ZnONPs | 4993/4818 | – | 3.6% |
| 4 layer prior and upon treating with 4% ZnONPs | 4993/4619 | – | 6.4% |
| 4 layer prior and upon treating with 5% ZnONPs | 4993/4592 | – | 8.7% |