ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(7), P. 3814 - 3825
Published: March 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
Language: Английский
Citations
13Progress in Organic Coatings, Journal Year: 2024, Volume and Issue: 192, P. 108483 - 108483
Published: May 13, 2024
Language: Английский
Citations
13Composites Part B Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 111848 - 111848
Published: Sept. 1, 2024
Language: Английский
Citations
12Nano Materials Science, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Language: Английский
Citations
1ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(15), P. 9238 - 9248
Published: July 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.
Language: Английский
Citations
8Sustainable materials and technologies, Journal Year: 2024, Volume and Issue: 39, P. e00821 - e00821
Published: Jan. 4, 2024
Language: Английский
Citations
7Fire, Journal Year: 2024, Volume and Issue: 7(2), P. 50 - 50
Published: Feb. 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.
Language: Английский
Citations
6European Polymer Journal, Journal Year: 2024, Volume and Issue: 210, P. 112936 - 112936
Published: March 15, 2024
Language: Английский
Citations
5International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 277, P. 134275 - 134275
Published: Oct. 1, 2024
Language: Английский
Citations
5ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(16), P. 9974 - 9985
Published: Aug. 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.
Language: Английский
Citations
5