Eco-friendly and ready-to-market polyurethanes: a Design of Experiment-guided substitution of toxic catalyst and fossil-based isocyanate.

IF 7.5 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
ChemSusChem Pub Date : 2024-12-14 DOI:10.1002/cssc.202402451
Gabriele Viada, Nicole Mariotti, Simone Galliano, Alberto Menozzi, Claudia Barolo, Matteo Bonomo
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引用次数: 0

Abstract

In this contribution, we tackle the replacement of the Hg-based catalyst and fossil-derived isocyanate precursors toward the formulation of a more sustainable polyurethane thermosetting resins (PUs), emulating the performance of a fully fossil-based one employed in industrial encapsulation of optoelectronics. A mixed Bi-Zn catalyst and a 71% bio-based isocyanate are exploited at this aim through multivariate chemometric approaches, namely Design of Experiment (DoE). DoE allows us to investigate the effect of different formulation factors on selected parameters, such as the film flexibility and transparency or the gel time. More in detail, it is found that a low amount of Zn-rich catalytic mixture leads to a ready-to-market polyurethane only when a fossil-based isocyanate is used. Differently, PUs formulated with bio-based isocyanate, albeit showing a higher bio-based content, present an insufficient optical purity, jeopardizing their market acceptability. Nevertheless, adding a negligible amount of a specific long chain fatty acid as reactivity modulator in the formulation leads to a bubbles-free and ready-to-market resin showing an impressive 65% w/w content of circular and bio-based components.

生态友好型和随时上市的聚氨酯:以实验设计为指导的有毒催化剂和化石基异氰酸酯替代品。
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来源期刊
ChemSusChem
ChemSusChem 化学-化学综合
CiteScore
15.80
自引率
4.80%
发文量
555
审稿时长
1.8 months
期刊介绍: ChemSusChem Impact Factor (2016): 7.226 Scope: Interdisciplinary journal Focuses on research at the interface of chemistry and sustainability Features the best research on sustainability and energy Areas Covered: Chemistry Materials Science Chemical Engineering Biotechnology
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