Progress in Polymer Science, Год журнала: 2024, Номер 157, С. 101873 - 101873
Опубликована: Авг. 24, 2024
Язык: Английский
Industrial Crops and Products, Год журнала: 2023, Номер 207, С. 117731 - 117731
Опубликована: Ноя. 10, 2023
Язык: Английский
Процитировано
10
Waste Management Bulletin, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Environmental Progress & Sustainable Energy, Год журнала: 2025, Номер unknown
Опубликована: Янв. 14, 2025
Abstract The use of renewable resources in the epoxidation process can reduce dependence on non‐renewable petroleum and contribute to a more environmentally friendly chemical industry. This study aims investigate waste palm kernel oil as feedstock. synthesis epoxidized was conducted by reacting oil, formic acid, hydrogen peroxide one‐pot system. Currently, there is no reported literature simultaneous application catalyst for derived from industrial waste. optimum parameters were determined, including molar ratio (1.5:1), acid (0.5:1), stirring speed (300 rpm). relative conversion oxirane 88%. A mathematical model developed using numerical integration based fourth‐order Runge–Kutta method follows: = 0.894 mol·L −1 ·min , 7.420 0.086 . Based findings kinetic study, validated due its minimal simulation error.
Язык: Английский
Процитировано
0
Journal of Applied Polymer Science, Год журнала: 2025, Номер unknown
Опубликована: Янв. 21, 2025
ABSTRACT To develop a biodegradable epoxy resin matrix for high‐voltage insulating composites, petroleum‐based diglycidyl ether of bisphenol A (DGEBA) and epoxidized soybean oil (ESBO) were mixed, their biodegradability electrical mechanical properties studied. DGEBA/ESBO mixtures in the ratios 100/0, 90/10, 80/20, 70/30, 60/40, 50/50, respectively. In soil burial test, as ESBO content increased, thermosets disintegrated into smaller pieces by 4–6 months, while DGEBA thermoset without any preserved its geometry throughout degradation study 8 months. Crosslink density was studied solvent swelling method Flory–Rehner equation, glass transition temperature, Tg, measured differential scanning calorimetry, it found that crosslink Tg highest (80/20) thermoset. All strengths insulation breakdown obtained thermoset, which could be used composites.
Язык: Английский
Процитировано
0
Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161345 - 161345
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0
Packaging Technology and Science, Год журнала: 2025, Номер unknown
Опубликована: Март 14, 2025
ABSTRACT Synthetic plasticizers are essential additives widely used in polymer‐based products such as food packaging, toys and medical devices. Despite their functional properties, they present significant environmental human health risks due to toxicity migration behaviour. Growing awareness of these adverse effects has driven interest the development bio‐based derived from natural resources. In recent years, have emerged promising alternatives, offering advantages low toxicity, biodegradability reduced migration. Their application is particularly relevant packaging industry, where transition towards sustainable materials gained great interest, with growing use biopolymers starch, poly(lactic acid) (PLA), chitosan gelatin. Most exhibit limitations barrier, mechanical processing requiring addition improve performance. Natural provide a synergistic solution by enhancing properties while maintaining sustainability resulting materials. Furthermore, compatibility makes them highly suitable for industrial applications. This review explores advancements plasticizers, integration into biopolymer systems challenges associated industrial‐scale adoption
Язык: Английский
Процитировано
0
International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 142886 - 142886
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
Processes, Год журнала: 2025, Номер 13(4), С. 1256 - 1256
Опубликована: Апрель 21, 2025
Sustainable bio-based epoxy technology is developed by using materials instead of conventional fossil-derived ones. Significant progress in new material development on resins, curing agents, and additives, as well formulated products, has been achieved recently not only fundamental academic studies but also industrial product development. There are mainly two types resins: resins novel depending the resin building-block type used. Bio-based prepared epichlorohydrin to replace fossil-based epichlorohydrin. usually from epoxidation renewable precursors such unsaturated vegetable oils, saccharides, tannins, cardanols, terpenes, rosins, lignin. Typical agents polyamines, polyamides, amidoamines, cardanol-based phenalkamine-type agents. Cardanol a typical reactive additive available commercially. Certain partially products have supplied for use bonding, coating, casting, composite, laminating applications.
Язык: Английский
Процитировано
0
The Canadian Journal of Chemical Engineering, Год журнала: 2025, Номер unknown
Опубликована: Апрель 24, 2025
Abstract Concern regarding the setback of dependency on using fossil fuels as main resources precursor for many derivatives had drawn attention to further study production dihydroxystearic acid (DHSA) by in situ hydrolysis epoxidized oleic acid. Epoxidized was produced formed performic Performic mixing formic oxygen carrier with hydrogen peroxide donor. The Taguchi method proposed that optimum parameter DHSA is peroxide/oleic unsaturation molar ratio 1.5:1, acid/oleic 0.5, reaction temperature 35°C, and agitation speed 200 rpm. Based optimized parameters, highest hydroxyl value 267 mg KOH/g achieved. Additionally, a mathematical model developed MATLAB software, employing fourth‐order Runge–Kutta simulated annealing optimization accurately describe kinetic behaviour reaction. numerical simulations were performed genetic algorithm, results showed good agreement between simulation experimental data, which validates model.
Язык: Английский
Процитировано
0
Materials Today Communications, Год журнала: 2023, Номер 35, С. 106293 - 106293
Опубликована: Май 24, 2023
Язык: Английский
Процитировано
9