Techno-economic Analysis for the Production of Novel Bio-derived Elastomers with Modified Algal Proteins as a Reinforcing Agent

Bocheński, Tomasz; Chan, Wui Yarn; Olsen, Bradley D.; Schmidt, Jens Ejbye

doi:10.1007/978-3-030-10961-5_27

Cited by 1 publication

(3 citation statements)

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“…CP120 possesses fracture stress of 11.3 ± 0.4 MPa, modulus of 85.9 ± 6.3 MPa, and toughness of 19.2 ± 1.4 MJ/m 3 , representing an increase of 48, 36, and 31%, respectively, compared to the thermoset CP23. Importantly, protein copolymers with intermolecular β-sheet structures have mechanical properties similar to those of tough protein materials ,,, and are comparable to or exceed those of bio-based polyurethanes. − Given the economic feasibility , and mechanical comparability, the developed copolymers could be a valuable alternative to bio-polyurethanes.…”

Section: Resultsmentioning

confidence: 99%

“…Importantly, protein copolymers with intermolecular β-sheet structures have mechanical properties similar to those of tough protein materials 9,16,20,44 and are comparable to or exceed those of bio-based polyurethanes. 45−48 Given the economic feasibility 11,12 and mechanical comparability, the developed copolymers could be a valuable alternative to bio-polyurethanes.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…As the most abundant nitrogen-containing feedstocks and a macromolecule capable of generating hydrogen bonds and crystalline structures similar to polyurethanes, − proteins represent attractive materials for the development of plastic replacements. Several studies have shown that the concept of fabricating large-scale materials from protein feedstocks holds great economic promise, suggesting the key science and technology gap now is the development of protein materials with desired performance. − …”

Section: Introductionmentioning

confidence: 99%

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Strengthening and Toughening of Protein-Based Thermosets via Intermolecular Self-Assembly

Cao

Olsen

2022

Biomacromolecules

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As proteins are abundant polymers in biomass sources such as agricultural feedstocks and byproducts, leveraging them to develop alternatives to synthetic polymers is of great interest. However, the mechanical performance of protein materials is not suitable for most target applications. Constructing copolymers with proteins as hard domains and rubbery polymers as soft domains has been shown to be a promising strategy for improving mechanical properties. Herein, it is demonstrated that toughening and strengthening of protein copolymers can be advanced further by thermal treatment, leading to mechanical enhancements that generalize across a variety of different protein feedstocks, including whey, serum, soy, and pea proteins. The thermal treatment induces a rearrangement of protein structure, leading to the formation of intermolecular β-sheets. The ordered intermolecular structures in the hard domains of thermosets greatly improve their mechanical properties, providing simultaneous increases in strength, toughness, and modulus, with little sacrifice in fracture strain. Analogous to crystalline structures, the formation of intermolecular β-sheet structures also leads to reduced hygroscopicity. This is a valuable contribution, as practical applications of natural polymer-based plastics are frequently hindered by the materials' humidity sensitivity. Therefore, this work demonstrates a simple yet versatile strategy to improve the materials' performance from a wide range of protein feedstocks, as well as signifies the implications of protein structural assembly in materials design.

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