Fabrication of Aliphatic Water-Soluble Polyurethane Composites with Silane Treated CaCO3open access
- Authors
- Wondu, Eyob; Lule, Zelalem Chernet; Kim, Jooheon
- Issue Date
- Apr-2020
- Publisher
- MDPI
- Keywords
- water-soluble polyurethane; hydroxyl-terminated polybutadiene; water solubility; CaCO3; composites
- Citation
- POLYMERS, v.12, no.4
- Journal Title
- POLYMERS
- Volume
- 12
- Number
- 4
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/42327
- DOI
- 10.3390/polym12040747
- ISSN
- 2073-4360
2073-4360
- Abstract
- In the present study, composites of water-soluble polyurethane/calcium carbonate (CaCO3) were prepared from a soft segment of hydroxyl-terminated polybutadiene (HTPB) and polyethylene glycol (PEG, average molecular weight = 4000) with aliphatic diisocyanates. The functionality of CaCO3 particles was modified using aminopropyltriethoxysilane (APTES), and was confirmed by Fourier-transform infrared spectroscopy (FTIR). The solubility, hydrophilic properties, and chemical structures of the composites were analyzed by water-solubility tests, contact angle measurements, and FTIR, respectively, and the successful production of the hydrophilic water-soluble polyurethane (WSPU) structure was demonstrated. The adhesion of surface-modified CaCO3 particles to the WSPU matrix and the thermal degradation properties of the neat WSPU and WSPU/CaCO3 composites were studied using field emission scanning electron microscopy (FE-SEM) and thermogravimetric analysis (TGA). The results demonstrated good adhesion of the surface-modified CaCO3 particles along with an improved thermal degradation temperature with the addition of CaCO3 particles to the WSPU matrix.
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Collections - College of Engineering > School of Chemical Engineering and Material Science > 1. Journal Articles
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