A Novel Way of Adhering PET onto Protein (Wheat Gluten) Plastics to Impart Water Resistance
Source abstract
Abstract
This study presents an approach to protect wheat gluten (WG) plastic materials against water/moisture by adhering it with a polyethylene terephthalate (PET) film using a diamine (Jeffamine®) as a coupling agent and a compression molding operation. The laminations were applied using two different methods, one where the diamine was mixed with the WG powder and ground together before compression molding the mixture into plates with PET films on both sides. In the other method, the PET was pressed to an already compression molded WG, which had the diamine brushed on the surface of the material. Infrared spectroscopy and nanoindentation data indicated that the diamine did act as a coupling agent to create strong adhesion between the WG and the PET film. Both methods, as expected, yielded highly improved water vapor barrier properties compared to the neat WG. Additionally, these samples remained dimensionally intact. Some unintended side effects associated with the diamine can be alleviated through future optimization studies.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Natural Fiber Reinforced Composites · Nanocomposite Films for Food Packaging · Additive Manufacturing and 3D Printing Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Fibre and Polymer Technology, Polymeric Materials Division, School of Engineering Sciences in Chemistry, Biotechnology and Health. KTH Royal Institute of Technology, Stockholm 10044, Sweden
Department of Chemical and Materials Engineering, The University of Auckland, Auckland 1142, New Zealand
Department of Plant Breeding, Faculty of Landscape Planning, Horticulture and Crop Production Sciences, Swedish University of Agricultural Sciences, Alnarp 23053, Sweden
Funding
Lantmännen Research Foundation
References (34)
Show source-provided references
1. Das, O., and Hedenqvist, M.S. (Open Access Government, 2018). Self-Reinforced Gluten Polymers: A Step towards a True Biocomposite, Open Access Government.
2. Bilayer films composed of wheat gluten film and UV-cured coating: Water vapor permeability and other functional properties10.1007/s002890070091 ↗
3. Capezza, A.J. (2017). Novel Superabsorbent Materials Obtained from Plant Proteins—A Report, Department of Plant Breeding, Swedish University of Agricultural Sciences.
4. Wheat gluten-laminated paperboard with improved moisture barrier properties: A new concept using a plasticizer (Glycerol) containing a hydrophobic component (Oleic Acid)10.1155/2012/454359 ↗
5. Modification of physical and barrier properties of edible wheat gluten-based films
6. Guilbert, S., Seow, C.C., Teng, T.T., and Quah, C.H. (1988). Food Preservation and Moisture Control, Elsevier Applied Science.
7. Biodegradable protein-based films from plant resources: A review10.1002/ep.10463 ↗
8. Water vapour permeability of edible bilayer films of wheat gluten and lipids10.1111/j.1365-2621.1995.tb01945.x ↗
9. Influence of gallic acid and tannic acid on the mechanical and barrier properties of wheat gluten films10.1021/jf300983m ↗
10. Effect of cross-linking using aldehydes on properties of glutenin-rich films10.1016/S0268-005X(03)00128-0 ↗
11. Property modification of edible wheat, gluten-based films10.13031/2013.28360 ↗
12. Properties of wheat gluten/poly (lactic acid) laminates10.1021/jf1003144 ↗
13. Bilayer films composed of wheat gluten and functionalized polyethylene: Permeability and other physical properties10.1007/s002890050633 ↗
14. Edible composite films of wheat gluten and lipids: Water vapour permeability and other physical properties10.1111/j.1365-2621.1994.tb02045.x ↗
15. Effect of the film-processing conditions, relative humidity and ageing on wheat gluten films coated with electrospun polyhydryalkanoate10.1016/j.foodhyd.2014.09.032 ↗
16. Properties of chemically and physically treated wheat gluten films10.1021/jf0001785 ↗
17. Biodegradable and bio-based polymers: Future prospects of eco-friendly plastics10.1002/anie.201410770 ↗
18. Alaerts, L., Augustinus, M., and Van Acker, K. (2018). Impact of Bio-Based Plastics on Current Recycling of Plastics. Sustainability, 10.10.3390/su10051487 ↗
19. Highly porous flame-retardant and sustainable biofoams based on wheat gluten and in situ polymerized silica10.1039/C4TA04787G ↗
20. Highly absorbing antimicrobial biofoams based on wheat gluten and its biohybrids10.1021/acssuschemeng.6b00099 ↗
21. (2014). ASTM D638-14 Standard Test Method for Tensile Properties of Plastics, ASTM International.
22. Nanoindentation assisted analysis of biochar added biocomposites10.1016/j.compositesb.2016.01.057 ↗
23. (2013). ASTM D1653-13 Standard Test Methods for Water Vapor Transmission of Organic Coating Films, ASTM International.
24. Mechanical and flammability characterisations of biochar/polypropylene biocomposites10.1016/j.compositesb.2016.09.020 ↗
25. Properties of thermally-treated wheat gluten films10.1016/S0926-6690(97)00216-1 ↗
26. Jansens, K. (2013). Gluten Cross-Linking and its Importance for the Mechanical Properties of Rigid Wheat Gluten Bioplastics. [Ph.D. Thesis, KU Leuven].
27. Hendrix, J.A., Booij, M., and Frentzen, Y.H. (1997). Depolymerization of Polyamides. (5,668,277), U.S. Patent.
28. (2018, September 14). Young’s Modulus of Elasticity for Metals and Alloys. Available online: https://www.engineeringtoolbox.com/young-modulus-d_773.html.
29. Wheat-gluten uses and industry needs10.1016/j.tifs.2005.10.003 ↗
30. Structure–mechanics property relationship of waste derived biochars10.1016/j.scitotenv.2015.08.073 ↗
31. Netravali, A.N., and Mittal, K.L. (2016). Development of Polymeric Biocomposites: Particulate Incorporation, Interphase Generation and Evaluation by Nanoindentation. Interface/Interphase in Polymer Nanocomposites, John Wiley & Sons.10.1002/9781119185093 ↗
32. Effects of the ratio of hardness to Young’s modulus on the friction and wear behavior of bilayer coatings10.1063/1.1811377 ↗
33. Structural investigations of amines treated polyester thin films by FTIR-ATR spectroscopy
34. Quantification of primary amine groups available for subsequent biofunctionalization of polymer surfaces10.1021/bc200259c ↗