Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 158868 - 158868
Опубликована: Дек. 1, 2024
Язык: Английский
Journal of Applied Polymer Science, Год журнала: 2025, Номер unknown
Опубликована: Апрель 3, 2025
ABSTRACT Recycling of post‐consumer waste has emerged as a key strategy to reduce environmental impact and conserve resources, particularly in the production sustainable polymers. The development high‐quality recycled polypropylene (rPP) from household waste, such Systalen recyclate produced by Der Grüne Punkt (Green Dot), exemplifies this progress. is manufactured using patented purification recycling process designed produce consistent, rPP streams, significantly reducing CO 2 emissions compared virgin plastics. This study provides comprehensive rheological characterization rPP, focusing on influence its origin material's flow properties. Advanced methods, including oscillatory shear rotation rheometry, were used evaluate viscoelastic properties, stability, processing behavior. Results reveal notable variations characteristics due heterogeneous composition potential contaminants inherent impacting thinning behavior, complex viscosity, relaxation times. research highlights necessity optimized strategies tailored recyclates ensure their consistent performance. findings emphasize reliable secondary raw material for wide range applications (e.g., textile industry), supporting circular economy initiatives reliance resources.
Язык: Английский
Процитировано
0
Sustainable Production and Consumption, Год журнала: 2025, Номер unknown
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
Circular Economy and Sustainability, Год журнала: 2025, Номер unknown
Опубликована: Апрель 18, 2025
Язык: Английский
Процитировано
0
Polymers, Год журнала: 2025, Номер 17(9), С. 1138 - 1138
Опубликована: Апрель 22, 2025
As a bio-based polymer, polybutylene succinate (PBS) has extensive applications in plastic products and film manufacturing. However, its low melt strength results poor spinnability, during the forming process, it tends to form large-sized spherulites exhibit filament adhesion phenomena. These limitations have hindered development field of fiber spinning. To enhance strength, this work systematically investigated effects spinning temperature speed on properties structure PBS pre-oriented yarns (PBS-POY). The indicated that appropriately lowering increasing could improve mechanical fibers. When was 195 °C reached 2500 m/min, tensile achieved 2.09 cN/dtex. Furthermore, evolution structures under maximum drawing conditions across different systems examined. By synchronously analyzing correlations among properties, thermal behavior condensed state structures, structural performance regulation mechanism synergistic effect spinning–drawing processes revealed. demonstrated fibers produced at higher speeds contained more numerous smaller spherulites. After drawing, these split into lamellae with uniformity, resulting final crystal sizes, crystallinity improved orientation. increased, average size decreased; long period extended from 8.55 nm 9.99 nm, 2.72
Язык: Английский
Процитировано
0
Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 156987 - 156987
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
2
Journal of Membrane Science, Год журнала: 2024, Номер unknown, С. 123622 - 123622
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
1
Circular Economy and Sustainability, Год журнала: 2024, Номер unknown
Опубликована: Дек. 4, 2024
Язык: Английский
Процитировано
0
ACS Omega, Год журнала: 2024, Номер 9(51), С. 50526 - 50536
Опубликована: Дек. 12, 2024
In this study, for the first time, biobased photopolymers were synthesized from phloroglucinol tris epoxy with and without different comonomers, phloroglucinol, 1,4:3,6-dianhydro-D-sorbitol, 1,4-cyclohexanedimethanol. The rheological, thermal, mechanical, shape-memory, antimicrobial properties of investigated. addition comonomers reduced photocuring rate (gel time increased 325 s to 434-861 s) rigidity (storage modulus decreased 330.76 15.42-85.77 MPa), their brittleness, flexibility (elongation at break 0.9 1.89-4.51%), although tensile strength polymers remained sufficiently high (tensile was 292.00 132.62-234.54 MPa). All exhibited a thermoresponsive shape-memory behavior as they could maintain temporary shape below glass-transition temperature return permanent when raised again above temperature. showed antibacterial activity against
Язык: Английский
Процитировано
0
Comprehensive Reviews in Food Science and Food Safety, Год журнала: 2024, Номер 24(1)
Опубликована: Дек. 16, 2024
Abstract Food packaging (FP) is essential for preserving food quality, safety, and extending shelf‐life. However, growing concerns about the environmental health impacts of conventional materials, particularly per‐ polyfluoroalkyl substances (PFAS) microplastics, are driving a major transformation in FP design. PFAS, synthetic compounds with dual hydro‐ lipophobicity, have been widely employed materials (FPMs) to impart desirable water grease repellency. PFAS bioaccumulate human body linked multiple effects, including immune system dysfunction, cancer, developmental problems. The detection microplastics various FPMs has raised significant regarding their potential migration into subsequent ingestion. This comprehensive review examines current landscape FPMs, functions, physicochemical properties put perspective why there widespread use FPMs. then addresses challenges posed by emphasizing urgent need sustainable bio‐based alternatives. We highlight promising advancements renewable plant‐derived polysaccharides, proteins, waxes, as well recycled upcycled materials. integration these active systems also examined, indicating innovations oxygen scavengers, moisture absorbers, antimicrobial packaging. concludes identifying key research gaps future directions, life cycle assessments strategies improve scalability cost‐effectiveness. As industry evolves, holistic approach considering impact, functionality, consumer acceptance will be crucial developing truly solutions.
Язык: Английский
Процитировано
0
Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 158868 - 158868
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
0