Selected physical and spectroscopic properties of TPS moldings enriched with durum wheat bran
Authors:
- Maciej Combrzyński,
- Agnieszka Wójtowicz,
- Anna Oniszczuk,
- Dariusz Karcz,
- Jarosław Szponar,
- Arkadiusz P. Matwijczuk
Abstract
The impact of the amount of durum wheat bran additive used on the selected structural, mechanical, and spectroscopic properties of thermoplastic starch moldings was examined in this study. Bran was added to corn starch from 10 to 60% by weight in the blends. Four temperature settings were used for the high-pressure injection: 120, 140, 160, and 180 °C. The highest value of elongation at break (8.53%) was observed for moldings containing 60% bran. Moreover, for these moldings, the tensile strength and flexural strength were lower (appropriately 3.43 MPa and 27.14 MPa). The highest deformation at break (1.56%) were obtained for samples with 60% bran and injection molded at 180 °C. We saw that higher bran content (50 and 60%) and a higher injection molding temperature (160 °C and 180 °C) significantly changed the color of the samples. The most significant changes in the FTIR spectra were observed at 3292 and 1644 cm−1 and in the region of 1460–1240 cm−1. Moreover, notable changes were observed in the intensity ratio of bands at 1015 and 955 cm−1. The changes observed correspond well with the amount of additive used and with the injection temperature applied; thus it may be considered as a marker of interactions affecting plasticization of the material obtained.
- Record ID
- CUT29740d1ee3384efdafc1c58c74fe916c
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2022
- Vol
- 15
- No
- 14
- Pages
- [1-18]
- Article number
- 5061
- Other elements of collation
- fot.; tab.; wykr.; Bibliografia (na s.) - 16-18; Bibliografia (liczba pozycji) - 58; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 15, Iss. 14, Spec. Iss.
- Substantive notes
- Special Issue: Bio-Based Materials and Their Environmental Applications
- Keywords in English
- extrusion cooking, durum wheat bran, thermoplastic starch moldings, mechanical and structural properties, color profile, ATR/FTIR spectroscopy
- ASJC Classification
- DOI
- DOI:10.3390/ma15145061 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/15/14/5061 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Score source
- journalList
- Score
- Publication indicators
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT29740d1ee3384efdafc1c58c74fe916c/
- URN
urn:pkr-prod:CUT29740d1ee3384efdafc1c58c74fe916c
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.