Pudineh Moadab, Saeed (2022) Effect of plasma treatment on adhesion, wettability and thermal behavior of polypropylene/ wood fiber composites. Masters thesis, University of Zabol.
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Effect of plasma treatment on adhesion, wettability and thermal behavior of polypropylene wood fiber composites.pdf Download (237kB) | Preview |
Abstract
This work evaluates the effect of plasma treatment on adhesion, wettability and thermal behavior of polypropylene/ wood fiber composites .Initially, WF was treated with different plasma durations (60, 120, and 180 second radiation). Afterward, the contact angle, moisture uptake, storage modulus, loss modulus, damping loss, and weight loss of the specimens prepared from untreated and plasma-treated were evaluated. Results revealed that the plasma treatment facilitates the interactions between WF and PP, and increases the adhesion properties. Compared with the lowest contact angle of 74.8o for the untreated specimens, the highest contact angle was found in the treated specimens around 82.7o, using 180s plasma radiations. Furthermore, the water absorption of the specimens reduced as a result of plasma treatment. The plasma-treated specimens demonstrated better molecular restriction and larger dynamic modulus than the unmodified ones. The tan δ peak signifying the glass transition temperature of composites shifted to a higher temperature, in the presence of plasma treatment. The thermal stability of the composites produced from plasma-treated wood was remarkably improved.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Plasma treatment, Adhesion behavior, Contact angle, Thermal properties, Morphological study |
| Subjects: | T Technology > TS Manufactures |
| Depositing User: | Mrs najmeh khajeh |
| Date Deposited: | 13 Nov 2022 08:14 |
| Last Modified: | 13 Nov 2022 08:14 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/3228 |
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