Surface Modification of Intumescent Flame Retardant and Its Application in Polypropylene with Excellent Fire Performance and Water Resistance DOI Open Access

Xuqiang Zheng,

Mike Deng,

Hao Jia

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(3), P. 399 - 399

Published: Feb. 2, 2025

Polypropylene (PP) has a wide range of applications in daily life but it is highly flammable. Intumescent flame retardants (IFRs) are used to improve the flame-retardant performance polypropylene. However, poor compatibility between IFRs and PP poses significant challenges. In this study, an IFR was reacted with γ-aminopropyl triethoxysilane (KH550) introduce necessary reactive sites on surface IFR. Subsequently, maleic anhydride-grafted SBS (SBS-g-MAH) KH550 further coat IFR, resulting modified named MA-IFR. The effects MA-IFR retardancy, mechanical properties, water resistance composites were systematically investigated. limiting oxygen index PP/MA-IFR composite reached up 39.7%, vertical burning test (UL-94) achieving V-0 rating. Moreover, compared control PP, peak heat release rate smoke reduced by 85.0% 82.5%, respectively. addition, properties significantly improved, tensile strength impact increasing 29% 18%, respectively, those PP/IFR composite. Notably, maintained excellent even after being immersed at 70 °C for 168 h. These results demonstrate that offers promising solution producing water-resistant composites.

Language: Английский

Biopolymer‐Based Flame Retardants and Flame‐Retardant Materials DOI Open Access
Ying‐Jun Xu, Kai Zhang, Jirong Wang

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 8, 2025

Abstract Polymeric materials featuring excellent flame retardancy are essential for applications requiring high levels of fire safety, while those based on biopolymers highly favored due to their eco‐friendly nature, sustainable characteristics, and abundant availability. This review first outlines the pyrolysis behaviors biopolymers, with particular emphasis naturally occurring ones derived from non‐food sources such as cellulose, chitin/chitosan, alginate, lignin. Then, strategies chemical modifications flame‐retardant purposes through covalent, ionic, coordination bonds presented compared. The is placed advanced methods introducing biopolymer‐based retardants into polymeric matrices fabricating materials. Finally, challenges sustaining current momentum in utilization further discussed.

Language: Английский

Citations

6
One-step and multi-functional polyester/cotton fabrics with phosphorylation chitosan: Its flame retardancy, anti-bacteria, hydrophobicity, and flame-retardant mechanism DOI
Ping Li, Yuanlin Ren, Ying‐Jun Xu

et al.

Progress in Organic Coatings, Journal Year: 2025, Volume and Issue: 203, P. 109179 - 109179

Published: March 1, 2025

Language: Английский

Citations

1
Mechanically Strong and Flame-Retardant Epoxy/Bamboo Composites Via Cable-Like Robust Phytic Acid-Cu2+ Layer-by-Layer Structures on Bamboo Fibers DOI

Junyue Shan,

Guoying Liu,

Jieyu Wu

et al.

Published: Jan. 1, 2025

Bamboo/polymer composites have attracted significant attention for their eco-friendly nature, lightweight, and high strength. However, intrinsic flammability restricts applications, as traditional flame-retardant methods often struggle to balance flame resistance mechanical performance. This study introduces a novel approach constructing layer-by-layer structure on bamboo fibers, drawing inspiration from cable protection designs. Partially delignified was processed develop porous structure, which then subjected esterification treatment improve its copper ion binding capacity. Coordination bonds were employed crosslinking agents, enabling the incorporation of ammonium phytate form robust, continuous composite layer adhered parenchyma cells. Continuous protective effectively inhibits heat transfer penetration flammable gases. It also strengthens integrity cells, reducing load during external impacts material. The treated bamboo/epoxy showed an increase in LOI 23.4% 31.1%. Furthermore, THR TSP decreased by 49.2% 74.0%, respectively. material maintained performance 360.1 MPa. Additionally, exhibited outstanding superhydrophobicity antibacterial properties. These features render ideal outdoor construction, marine vessels bridges, paving way high-value utilization.

Language: Английский

Citations

0
Surface Modification of Intumescent Flame Retardant and Its Application in Polypropylene with Excellent Fire Performance and Water Resistance DOI Open Access

Xuqiang Zheng,

Mike Deng,

Hao Jia

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(3), P. 399 - 399

Published: Feb. 2, 2025

Polypropylene (PP) has a wide range of applications in daily life but it is highly flammable. Intumescent flame retardants (IFRs) are used to improve the flame-retardant performance polypropylene. However, poor compatibility between IFRs and PP poses significant challenges. In this study, an IFR was reacted with γ-aminopropyl triethoxysilane (KH550) introduce necessary reactive sites on surface IFR. Subsequently, maleic anhydride-grafted SBS (SBS-g-MAH) KH550 further coat IFR, resulting modified named MA-IFR. The effects MA-IFR retardancy, mechanical properties, water resistance composites were systematically investigated. limiting oxygen index PP/MA-IFR composite reached up 39.7%, vertical burning test (UL-94) achieving V-0 rating. Moreover, compared control PP, peak heat release rate smoke reduced by 85.0% 82.5%, respectively. addition, properties significantly improved, tensile strength impact increasing 29% 18%, respectively, those PP/IFR composite. Notably, maintained excellent even after being immersed at 70 °C for 168 h. These results demonstrate that offers promising solution producing water-resistant composites.

Language: Английский

Citations

0