Development of soybean oil‐based aqueous polyurethanes and the effect of hydroxyl value on its properties

Lou, Wenxue; Dai, Zhuding; Jiang, Pingping; Bao, Yongzhong; Gao, Xuewen; Xia, Jiangzhou; Haryono, Agus

doi:10.1002/pat.5695

Cited by 14 publications

(1 citation statement)

References 44 publications

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“…To further implement the concept of environmental sustainability, it is very important to use renewable bio-based resources instead of components synthesized from petroleum-based fossil resources for the preparation of NP-GLIDE polyurethane coatings . The bio-based polyurethanes have been successfully prepared from starch, β-cyclodextrin, cottonseed oil, soybean oil, lignin, and other biomass resources . Liang reported the manufacturing of a transparent NP-GLIDE PU coating by acetylated starch .…”

Section: Introductionmentioning

confidence: 99%

Bio-Based Waterborne Polyurethane Coatings with High Transparency, Antismudge and Anticorrosive Properties

Lei

Zhou

et al. 2023

ACS Appl. Mater. Interfaces

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Green and environment-friendly preparation are of the utmost relevance to the development of transparent antismudge coatings. To prepare a waterborne polyurethane (WPU) coating with antismudge property, it is challenging to balance the stability of dispersion and the antismudge property of coating. Herein, we prepare a transparent bio-based WPU coating grafted with a minor proportion of poly(dimethylsiloxane) (WPU-g-PDMS) using renewable castor oil, monocarbinol-terminated PDMS, hexamethylene diisocyanate trimer, and 2,2-bis(hydroxymethyl)propionic acid as raw materials. Effects of the dosage of monocarbinol-terminated PDMS, the curing temperature, and the curing time on the antismudge performance were studied. Results showed that rigorous stirring (3000 rpm) is necessary to obtain a stable WPU-g-PDMS dispersion with a storage time longer than 6 months. A high curing temperature (>160 °C) and a period of curing time (>1 h) are indispensable to obtain the excellent antismudge property because they would facilitate the grafted low-surface-tension PDMS chains to migrate from the interior to the coating surface. The facts that simulated contaminated liquids such as water, HCl solution, NaOH solution, artificial blood, and tissue fluid could slide off easily and cleanly, and marker ink lined on the coating surface could shrink, indicated that the WPU-g-PDMS coating has good antismudge properties, which could be self-compensated shortly after deterioration. Due to the high cross-linking degree caused by multifunctional polyol and isocyanate, the WPU-g-PDMS coating has high hardness and good anticorrosive performance. The antismudge functionalization and waterborne technology of bio-based polyurethane coatings proposed in this work could be a promising contribution to the green and sustainable development of functional coatings. This kind of WPU-g-PDMS coating is expected to protect and decorate electronic screens, vehicles, and buildings, especially endoscopes.

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Section: Introductionmentioning

confidence: 99%

Bio-Based Waterborne Polyurethane Coatings with High Transparency, Antismudge and Anticorrosive Properties

Lei

Zhou

et al. 2023

ACS Appl. Mater. Interfaces

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Influence of polar‐modified ESBO on the thermal and mechanical properties of FKM/EPDM rubber blends

Du,

Liu,

Yao

et al. 2024

J of Applied Polymer Sci

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Renowned for its oil, heat, and chemical resistance, fluoroelastomer rubber (FKM) also presents notable drawbacks, such as inferior low‐temperature performance. In this study, 2,2‐trifluoroethylamine (TF) and 2,4‐difluorobenzylamine (DF) were grafted onto epoxidized soybean oil (ESBO) to generate two innovative plasticizers: ESBO‐TF and ESBO‐DF that they were specifically designed to augment the low‐temperature performance of FKM. A thorough investigation into the effects of ESBO‐TF/DF on FKM/EPDM blends' properties was conducted. The study demonstrated that the integration of ESBO‐TF and ESBO‐DF enhanced the vital properties of the FKM/EPDM blends, including elongation at break, tear strength, and, significantly, low‐temperature performance. There was a noticeable decrease in the glass transition temperature (Tg), dropping by 3.54 and 2.95°C with the incorporation of 10 phr ESBO‐TF and ESBO‐DF, respectively. These respective plasticizers showed positive effects on the plasticization and compatibilization of the FKM/EPDM blends, thus proposing a novel methodology for developing new plasticizers for FKM and related blends.

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Biodegradability and Thermostability of Renewable Waterborne Polyurethane Synthesized from Trihydroxyl poly(L-malic acid)/glycol Based Polyols and Polycaprolactone Diol

Yu,

Song,

Niu

et al. 2023

J Polym Environ

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A biodegradable composite polyester-based waterborne polyurethane (L-AWPU) was synthesized by coupling L-malic acid and polyethylene glycol to obtain poly(L-malic acid ethylene glycol ester, PL-A) and polycaprolactone (PCL) as raw materials. The content of PL-A in polymer system was controlled to prepare L-AWPU with excellent biodegradable and thermostability properties. Compared to traditional PCL-WPU, the introduction of PL-A not only taking naturally degradable bio-based molecular chains into WPU, but also improving the branching degree of polyurethane molecular chains and formed intramolecular crosslinking structures due to the trifunctional hydroxyl group in malic acid. When the content of PL-A reached 20 wt%, the temperature of thermal weight loss (T5%) and maximum weight loss rate (T max ) of polyurethane coating increased from 237.93°C and 259.91°C to 333.86°C and 343.13°C, respectively. The establishment of intramolecular crosslinking structures and increase in molecular weight improved the thermal stability of polyurethane. The tensile strength

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Development of soybean oil‐based aqueous polyurethanes and the effect of hydroxyl value on its properties

Cited by 14 publications

References 44 publications

Bio-Based Waterborne Polyurethane Coatings with High Transparency, Antismudge and Anticorrosive Properties

Bio-Based Waterborne Polyurethane Coatings with High Transparency, Antismudge and Anticorrosive Properties

Influence of polar‐modified ESBO on the thermal and mechanical properties of FKM/EPDM rubber blends

Biodegradability and Thermostability of Renewable Waterborne Polyurethane Synthesized from Trihydroxyl poly(L-malic acid)/glycol Based Polyols and Polycaprolactone Diol

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