Construction of epoxy resin with enhanced flame retardancy, mechanical properties, and satisfactory transparency based on a novel bi‐DOPO and hydrogen‐bonding network DOI

Xiaoling Lin,

Xingzhen Xiao,

Dingsi Li

et al.

Journal of Applied Polymer Science, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 28, 2024

Abstract Establishment of high‐performance epoxy resin with satisfactory fire safety, mechanical properties, and excellent transparency is urgently desirable, but still remains significant challenges. Herein, a super‐tough yet high flame retardant (EP/BTD) was designed prepared by incorporating bi‐DOPO structure hydrogen‐bonding networks. Although the phosphorus content only 0.69 wt% (10 [BTD]), EP/BTD‐10 showed limiting oxygen index value (33.4%), UL‐94 rating (V‐0), good heat suppression ability (total release [THR] peak rate [PHRR] reduced to 29.0% 42.2%, respectively). Furthermore, mechanism EP/BTD illustrated attributed dual‐phase fire‐retardant effect. Additionally, EP/BTD‐7.5 featured notably which tensile strength, elongation at break impact strength increased 44.6%, 40.0%, 232.6%, respectively, due network π–π interaction. More importantly, maintained visible light transmittance UV‐blocking properties. In summary, this work provided guidance for development expected expand practical applications.

Language: Английский

Recent Advancements of Bio-Derived Flame Retardants for Polymeric Materials DOI Open Access
Min Chen, Qingjie Guo, Yao Yuan

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(2), P. 249 - 249

Published: Jan. 20, 2025

The sustainable flame retardancy of polymeric materials is a key focus for the direction next generation in field fire safety. Bio-derived retardants are gaining attention as environmentally friendly additives due to their low ecological impact and decreasing costs. These compounds can enhance char formation by swelling upon heating, attributed functional groups. This review explores various biomolecules used retardants, including phytic acid, chitosan, lignin, tannic bio-derived phosphorus nitrogen compounds, emphasizing flame-retardant properties compatibility with different polymer matrices. primary on structural characteristics, modifications, behaviors these additives, particularly regarding mechanisms action within materials. Finally, opportunities, current challenges, future directions practical application

Language: Английский

Citations

3
Multirecyclable, Self-Healable, Chemically Degradable, and High-Strength Epoxy Vitrimers Containing Tailorable Imine Bonds DOI

Chumeng Luo,

Xingyu Liu, Wei Yang

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: 64(9), P. 4685 - 4693

Published: Feb. 20, 2025

Epoxy (EP) vitrimers are considered the ideal substitutions for conventional thermosetting EPs due to their sustainability. However, industrial applications, high strength of usually contradicts a recovery ratio. Herein, we synthesized series hardeners containing imine bonds via reaction Schiff base between p-phenylenediamine and vanillin, which were then used prepare EP with various bond contents according stoichiometric ratios. exhibited tensile at least 54.9 MPa, all can be self-healed reprocessed temperatures. Moreover, increase content, activation energy (Ea) topology freezing transition temperature (Tv) decreased, leading improved The optimal comprehensive properties vitrimer achieved EPV-VP-1.5, Tg 132.7 °C, 82.4 an elongation break 5.5%, ratio 91.5% in first recycling process. Even after three times, 62.8 MPa was retained. dissolved completely 0.5 mol L–1 HCl DMF solutions 50 °C 2 days. Therefore, this work demonstrated strategy both

Language: Английский

Citations

1
Novel Bio-Based Phosphaphenanthrene-Containing N/P Flame Retardant: Towards Epoxy Resin with Excellent Flame Retardancy, Enhanced Toughness and Low Dielectric Constant DOI

Quanbing Shen,

Beibei Yu, Dong Chen

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Eugenol-Derived Trifunctional Epoxy Resin: Intrinsic Phosphorus-Free Flame Retardancy and Mechanical Reinforcement for Sustainable Polymer Alternatives DOI
Haiyan Ou, Jianbo Li, Ming Jin

et al.

Polymer Degradation and Stability, Journal Year: 2025, Volume and Issue: unknown, P. 111394 - 111394

Published: April 1, 2025

Language: Английский

Citations

0
An insight into the effects of the low oxidation states of phosphorous on the combustion behavior of intrinsically flame-retardant unsaturated polyester resins DOI
Yandong Hu, Yanbei Hou,

Kangsi Zhou

et al.

Polymer Degradation and Stability, Journal Year: 2024, Volume and Issue: unknown, P. 111156 - 111156

Published: Dec. 1, 2024

Language: Английский

Citations

2
Catalyst-Free Sustainable Epoxy Vitrimers with Fire Safety Offered by Phosphorus-Containing Compounds DOI
Fubin Luo,

Shuguang Yang,

Xueyan Yang

et al.

Polymer Degradation and Stability, Journal Year: 2024, Volume and Issue: 230, P. 111042 - 111042

Published: Oct. 16, 2024

Language: Английский

Citations

1
An Insight into Effects of the Low P Oxidation States on the Combustion Behavior Of Intrinsically Flame-Retardant Unsaturated Polyester Resins DOI
Yandong Hu, Yanbei Hou,

Kangsi Zhou

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

0
Construction of epoxy resin with enhanced flame retardancy, mechanical properties, and satisfactory transparency based on a novel bi‐DOPO and hydrogen‐bonding network DOI

Xiaoling Lin,

Xingzhen Xiao,

Dingsi Li

et al.

Journal of Applied Polymer Science, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 28, 2024

Abstract Establishment of high‐performance epoxy resin with satisfactory fire safety, mechanical properties, and excellent transparency is urgently desirable, but still remains significant challenges. Herein, a super‐tough yet high flame retardant (EP/BTD) was designed prepared by incorporating bi‐DOPO structure hydrogen‐bonding networks. Although the phosphorus content only 0.69 wt% (10 [BTD]), EP/BTD‐10 showed limiting oxygen index value (33.4%), UL‐94 rating (V‐0), good heat suppression ability (total release [THR] peak rate [PHRR] reduced to 29.0% 42.2%, respectively). Furthermore, mechanism EP/BTD illustrated attributed dual‐phase fire‐retardant effect. Additionally, EP/BTD‐7.5 featured notably which tensile strength, elongation at break impact strength increased 44.6%, 40.0%, 232.6%, respectively, due network π–π interaction. More importantly, maintained visible light transmittance UV‐blocking properties. In summary, this work provided guidance for development expected expand practical applications.

Language: Английский

Citations

0