Morphology and thermal properties of PET nanocomposite fibers by modified amine-polyhedral oligomeric silsesquioxane
- Authors
- Kim, Hong-Un; Yoon, Kwan Han
- Issue Date
- 16-Dec-2015
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Storage modulus retention; Nanocomposite fiber; Reinforcement; Thermal properties; Thermal stability
- Citation
- COMPOSITES SCIENCE AND TECHNOLOGY, v.121, pp 89 - 94
- Pages
- 6
- Journal Title
- COMPOSITES SCIENCE AND TECHNOLOGY
- Volume
- 121
- Start Page
- 89
- End Page
- 94
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/26968
- DOI
- 10.1016/j.compscitech.2015.10.014
- ISSN
- 0266-3538
1879-1050
- Abstract
- The terephthalic acid(TPA)-modified amine-polyhedral oligomeric silsesquioxane(M-AM-POSS)/poly (ethylene terephthalate) (PET) nanocomposites were prepared using in-situ polymerization. The thermal decomposition temperature of the composite, measured at a 5wt% weight loss, was 350 degrees C and much higher than those of neat PET and AM-POSS/PET composite. The SEM observation suggests that there was an obvious phase separation in the POSS/PET composite. The nanocomposite fiber that contained 1 wt% of AM-POSS and M-AM-POSS showed a uniform dispersion at all cross sectional regions, which arose from the strong interfacial interactions between POSS and PET during the polymerization. However, at magnified region AM-POSS with distribution of 30-100 nm, the M-AM-POSS showed narrow distribution of 50-80 nm. This suggests that the particles resulted from the reaction between M-AM-POSS and PET reaction. The storage moduli retention of the nanocomposite fibers with 1 wt% of AM-POSS and MAM-POSS at 120 degrees C increased by 5% and 15%, respectively, and glass transition temperature, by 4 degrees C and 10 degrees C, respectively. (C) 2015 Elsevier Ltd. All rights reserved.
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