Conductive fillers for electroactive shape memory actuators

Sakulmankongsuk, Anchista (2021) Conductive fillers for electroactive shape memory actuators. Bachelor's Thesis, Chemical Engineering.

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Abstract

Conductivity, thermo-mechanical properties, shape memory ability, along with economics of multi-walled carbon nanotube (CNT)/carbon black (CB) filled composite were investigated. 8 wt% CNT/CB of different ratios were formulated on furan-grafted polyketone (PK30-Fu) reversibly cross-linked with bis-maleimide (Bis-Ma) through Diels-Alder chemistry. The cross-linked composites were identified with H-NMR and FT-IR. Linear positive correlation was observed between surface temperature detected, current and conductivity. Samples with more CB content exhibit greater current and conductivity, and higher temperature profile as a result of successful resistive heating. No synergies were found regarding the conductivity between CNT and CB as co-fillers for the prepared system. The most conductive sample (CNT0/CB100) showed highest recovery rate, partial reprogrammability and good shape recovery for the new permanent shape. Shape recovery rate also forms linear positive interrelationship with temperature and current. All formulations acquired similar complex modulus (G*) and 100% shape recovery ratio. Both performance (electrical properties, shape memory ability) and economics are consistent, as the formulation with the best performance is also the cheapest.

Item Type:	Thesis (Bachelor's Thesis)
Supervisor name:	Bose, R.K. and Orozco Gutierrez, F.
Degree programme:	Chemical Engineering
Thesis type:	Bachelor's Thesis
Language:	English
Date Deposited:	17 Jun 2021 12:04
Last Modified:	17 Jun 2021 12:04
URI:	https://fse.studenttheses.ub.rug.nl/id/eprint/24612

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