Procedures of the nano/microcapsule synthesis with different processing parameters.
Sample | Silica nanoparticle dispersion [g] | PPG–TDI [g] | IPDI [g] | Agitation rate [rpm] | Yield [%] | Core content [wt%] | Content of silica nanoparticles [wt%] | Mean diameter [nm] |
---|---|---|---|---|---|---|---|---|
1 | 30 | 1.5 | 3 | 3000 | 62 | 28 | 10 | 1106 |
2 | 30 | 1.5 | 3 | 6000 | 45 | 29 | 18 | 848 |
3 | 30 | 1.5 | 3 | 9000 | 49 | 33 | 25 | 674 |
4 | 30 | 1.5 | 3 | 12 000 | 64 | 39 | 27 | 468 |
5 | 30 | 0.5 | 4 | 9000 | 58 | 32 | 21 | 1023 |
6 | 30 | 1 | 3.5 | 9000 | 63 | 44 | 26 | 865 |
7 | 30 | 2 | 2.5 | 9000 | 53 | 34 | 28 | 758 |
8 | 15 | 1.5 | 3 | 9000 | 47 | 31 | 10 | 655 |
9 | 45 | 1.5 | 3 | 9000 | 40 | 29 | 37 | 891 |