Table 2.
Composition of Spray Drying Mixtures of Polymer Coating Ratio Control Group
| PVB polymer coating ratio | Ethanol (%) | Water (%) | SiO2-treated silicone (%) | B-98 (%) | B-76 (%) |
|---|---|---|---|---|---|
| Polymer coating 8.00% | 77.50 | 10.00 | 11.50 | 0.50 | 0.50 |
| Polymer coating 12.00% | 77.50 | 10.00 | 11.00 | 0.75 | 0.75 |
| Polymer coating 16.00% | 77.50 | 10.00 | 10.50 | 1.00 | 1.00 |
| Polymer coating 20.00% | 77.50 | 10.00 | 10.00 | 1.25 | 1.25 |
Note that the nonvolatile ratio is fixed to 12.5% for all the samples in this group, and the polymer coating ratio, the ratio of sum of B-98 and B-76 among solid contents, was the main variable to control the property of spray drying mixture. Also, nonvolatile 12.50% and polymer coating 16.00% are identical.
PVB, polyvinyl butyral.