We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Preparation, characterization and performances of biodegradable thermoplastic starch.
- Authors
Wang, Hong-Yuan; Huang, Ming-Fu
- Abstract
A biodegradable thermoplastic starch (TPS) was successfully prepared from plasticizer ethanolamine and native cornstarch. The hydrogen bonding interaction between starch and ethanolamine was investigated using Fourier transform infrared (FT-IR). When the ethanolamine mass content was 30%, after the ethanolamine-plasticized thermoplastic starch (ETPS) was stored at RH 50% for 14 days, the mechanical testing showed that the maximum tensile stress of the ETPS reached 5.98 MPa, the tensile strain reached 106.52%, Young's modulus increased from 38.14 MPa of glycerol-plasticized thermoplastic starch (GTPS) to 75.32 MPa of ETPS, and the breaking energy increased from 1.921 N·m to 2.305 N·m, which indicated that the mechanical properties of ETPS evidently excelled those of the GTPS. The effects of water contents on the mechanical properties of ETPS and GTPS were studied. A differential scanning calorimetry (DSC) analysis revealed that the low-temperature transition and the glass transition temperature ( Tg) of the ETPS were −58 and 22°C respectively, which were lower than that of the GTPS. The ETPS effectively restrained the re-crystallization of traditional GTPS, which was proved by the X-ray diffraction (XRD). The scanning electron microscopy (SEM) images presented that ethanolamine made starch uniform. Copyright © 2007 John Wiley & Sons, Ltd.
- Subjects
STARCH; PLASTICIZERS; PLASTIC additives; ETHANOLAMINES; CORNSTARCH
- Publication
Polymers for Advanced Technologies, 2007, Vol 18, Issue 11, p910
- ISSN
1042-7147
- Publication type
Article
- DOI
10.1002/pat.930