Research Article
Effect of Variation Aluminum Oxide Concentration on the Modified Novolac Stalk Composite
Table 3
Effect of aluminum oxide percent on the conductivity and dielectric constant of treated composite.
| Sample | Frequency Hz | Conductivity () S/cm | Dielectric constant () |
| (1) Treated composite by propionic anhydride containing 30% novolac | 500 | | 500.2 | (2) Treated composite by propionic anhydride containing 30% novolac and 2% aluminum oxide | 500 | | 478.8 | (3) Treated composite by propionic anhydride containing 30% novolac and 4% aluminum oxide | 500 | | 458.1 | (4) Treated composite by propionic anhydride containing 30% novolac and 6% aluminum oxide | 500 | | 426.2 |
| 1 | | | 316.4 | 2 | | | 310.7 | 3 |
10.000 | | 285.3 | 4 | | | 271.5 |
| 1 | | | 280.3 | 2 | | | 268.1 | 3 |
15.000 | | 262.2 | 4 | | | 250.3 |
| 1 | | | 260 | 2 | | | 240.4 | 3 |
20.000 | | 220.4 | 4 | | | 212.8 |
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