ACS Applied Polymer Materials, Год журнала: 2024, Номер 6(7), С. 3814 - 3825
Опубликована: Март 19, 2024
To enhance the flame retardancy of polylactic acid (PLA), exploration bioderived retardants has captured focus researchers globally. Herein, a core–shell retardant is prepared through electrostatic self-assembly using ammonium polyphosphate (APP) as core and chitosan (CS)/tannic (TA) bilayer shell. In addition, Fe3+ ion introduced into outermost TA shell coordination with phenolic hydroxyl group, which can reduce droplets during combustion. The retardant, APP@CS@TA-nBL-Fe3+, structure (where "nBL" represents number coating layers CS bilayer) excellent for PLA. With 5 wt % PLA/5% APP@CS@TA-2BL-Fe3+ attains highest LOI value (31.6%) achieves UL-94 V-0 rating in vertical combustion tests light melt droplets. Furthermore, cone calorimetry results reveal that reduction 17.6% peak heat release rate 22.3% decrease total were achieved. Meanwhile, catalyzes matrix to form micro-cross-linked char layer blocking oxygen exchange. Moreover, not only 99.98% UV transmittance but also better mechanical properties after aging than neat This study presents convenient environmentally friendly approach preparing efficient biobased PLA, aiming broaden application
Язык: Английский
Процитировано
13Biomaterials in intumescent fire-retardant coatings: A review
Progress in Organic Coatings, Год журнала: 2024, Номер 192, С. 108483 - 108483
Опубликована: Май 13, 2024
Язык: Английский
Процитировано
13Multi-functional Finishing of Viscose Fabrics Based on Tea Polyphenols: Integrated Flame Retardant, Antibacterial, Hydrophobic, and UV-resistant Functionalities
Composites Part B Engineering, Год журнала: 2024, Номер unknown, С. 111848 - 111848
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
12MOFs with hierarchical nanostructures towards future functional polymers
Nano Materials Science, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
1Hierarchical Nanospheres toward Flame-Retardant, Mechanically Strong, and Low-Toxicity Epoxy Resins
ACS Applied Polymer Materials, Год журнала: 2024, Номер 6(15), С. 9238 - 9248
Опубликована: Июль 29, 2024
To endow epoxy resins (EPs) with outstanding flame-retardant and smoke-inhibiting effects, a multifunctional nanoparticle (SCP) has been designed prepared via simple approach, wherein Cu2O, melamine, phosphorus-containing flame retardants were successively deposited onto the surface of silica nanospheres. The incorporation low addition amount 2 wt % SCP within EP demonstrates significant improvement in retardancy. This enhancement is evidenced by notable increase limiting oxygen index to 29.2% attainment V-1 rating vertical burning test, contrast respective values 23.8% no for unmodified EP, respectively. Moreover, total smoke production, peak heat release rate, production rate CO EP/SCP-2 during cone calorimeter test decreased 10.2%, 26.1%, 37.0%, Besides, also endows composites commendable mechanical properties glass transition temperature (Tg), as 22.5% impact strength, an 8.1% rise tensile 9.5% Tg, comparing EP. mechanism analysis revealed that functions resin through both gas-phase condensed-phase mechanisms. Overall, proposed strategy presents promising approaches simultaneously enhancing fire safety performance polymer materials.
Язык: Английский
Процитировано
8Eco-friendly flame-retardant coatings based on γ-ureidopropyltriethoxysilane for cotton fabrics with improved flame retardancy and mechanical properties
Sustainable materials and technologies, Год журнала: 2024, Номер 39, С. e00821 - e00821
Опубликована: Янв. 4, 2024
Язык: Английский
Процитировано
7Flame Retardant Additives Used for Polyurea-Based Elastomers—A Review
Fire, Год журнала: 2024, Номер 7(2), С. 50 - 50
Опубликована: Фев. 7, 2024
The growing interest in modern polymer materials has targeted research on complex plastic coatings and the possibilities of modifying their features properties during manufacturing. Today’s coatings, including polyurea polyurethane, are among most developed resins. Compared to other they distinguished by versatility, strength, durability. They undoubtedly represent next step evolution coatings. Advances coating technology have also led development spray, injection, roto-cast application equipment, improving polyurea-based elastomers’ performance. For many years, there been much increasing flame resistance polymers. This is dictated safety considerations requirements for flammability plastics, area which every year. text attempts provide an overview current retardant composites. Particular attention was paid (PU) hybrids areas paper defines retardants, discusses how work, presents types retardants trends usage production plastics.
Язык: Английский
Процитировано
6Preparation of flame retardant and antibacterial polyacrylonitrile based on Cu2+ chelated six-armed star-type flame retardant SCCP and chitosan
European Polymer Journal, Год журнала: 2024, Номер 210, С. 112936 - 112936
Опубликована: Март 15, 2024
Язык: Английский
Процитировано
5High-performance epoxy resin with flame-retardant, transparent, and ultraviolet shielding properties based on a vanillin-based multifunctional macromolecule
International Journal of Biological Macromolecules, Год журнала: 2024, Номер 277, С. 134275 - 134275
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
5Flame-Retardant and Antibacterial Waterborne Polyurethane Composites Based on a Cu(II)–Phytate–Aromatic Schiff Base Complex
ACS Applied Polymer Materials, Год журнала: 2024, Номер 6(16), С. 9974 - 9985
Опубликована: Авг. 5, 2024
Waterborne polyurethane (WPU) has promising application prospects in paints and coatings owing to its low volatile organic compounds (VOCs), excellent abrasion resistance, mechanical properties. However, WPU is highly flammable, there a high demand for antibacterial properties practical applications. To date, effectively suppressing melt dripping remains challenge during combustion imparts property without compromising the inherent property. Herein, we report composites on basis of Cu(II)–phytate–aromatic Schiff base complex prepared from an aromatic derivative, copper(II) acetate, green renewable phytic acid. The resultant achieved limiting oxygen index (LOI) 27.5%. In UL-94 test, they achieve V-0 rating with no molten droplets self-extinguish within 1 s after first second flame Meanwhile, smoke emission inhibited cone calorimetry test. Moreover, exhibit killing rate 99.9% against Staphylococcus aureus Escherichia coli tensile toughness, providing useful reference designing fabricating flame-retardant composites.
Язык: Английский
Процитировано
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