Functionalized Attapulgite With Phosphaphenanthrene and Triazine‐Trione Groups for Improving Flame Retardancy of PBT Composites DOI
Wenlong Yang, Ming Li, Yu Zhang

et al.

Journal of Applied Polymer Science, Journal Year: 2024, Volume and Issue: 142(11)

Published: Dec. 16, 2024

ABSTRACT In this study, silane‐based phosphorus flame retardants (DOPO‐KH560) and nitrogen (TGIC‐KH550) were first synthesized via a ring‐opening addition reaction, the DOPO‐KH560 TGIC‐KH550 further grafted onto surface of ATP to obtain ATPD ATPT retardants, respectively. The resulting ATPT, with different phosphorus/nitrogen (P/N) ratios, then incorporated into poly(butylene terephthalate) (PBT) at loading 10 wt% improve retardancy mechanical integrity PBT composites. Specifically, composite containing 8 wt.% 2 achieved V‐0 rating an oxygen index (LOI) 28.3%, peak heat release rate (pHRR) total (THR) decreased by 29.4% 7.7% compared PBT. Due good interfacial adhesion between matrix, PBT/6ATPD/4ATPT exhibited tensile strength 58.7 MPa, exceeding PBT/ATP 9.7% 8.1%, As result, integration as not only improved fire resistance but also optimized properties

Language: Английский

Bio-derived modified halloysite nanotubes as eco-friendly flame retardants to endow epoxy with high thermal stability, mechanical performance and flame retardancy DOI

Qing-Qing Bi,

Ying-Ming Li, Lu He

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 500, P. 157438 - 157438

Published: Nov. 1, 2024

Language: Английский

Citations

7
Synergistic flame retardancy of poly(cyclotriphosphazene-co-piperazine) particle with aluminum diethylphosphinate in epoxy resin DOI
Song Wang, Lingchen Meng, Ailing Zhang

et al.

Journal of Macromolecular Science Part A, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 11

Published: Nov. 22, 2024

Hexachlorocyclotriphosphazene (HCCP) was reacted with piperazine to obtain poly(cyclotriphosphazene-co-piperazine) particle (PCPS), which used as the flame retardant for epoxy resin (EP). The structure of PCPS determined by various methods. When alone and addition amount in prepared flame-retardant EP (FR-EP) reached 4%, obtained FR-EP cannot even pass V-1 level Vertical burning (UL-94) test. However, showed a synergistic retardancy aluminum diethylphosphinate (ADP). mixture ADP 4% weight ratio 3:1, FR-EP, EP-ADP/PCPS3:1, V-0 UL-94 limiting oxygen index (LOI) value EP-ADP/PCPS3:1 29.7%. Compared pure EP, peak heat release rate micro-combustion calorimetry (MCC) test reduced 20.6%. Thermogravimetric analysis (TGA) result that, PCPS, char residual increased about 5.1% compared EP. combination significant advantage promoting mechanical properties hardly decreased PCPS.

Language: Английский

Citations

6
DOPO-modified HNTs reinforced silica aerogel composites: enhanced flame retardancy, thermal insulation, and environmental stability for silicone resins DOI
Ke Wang, T. K. Kwei

Progress in Organic Coatings, Journal Year: 2025, Volume and Issue: 206, P. 109362 - 109362

Published: May 4, 2025

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
Functionalized Attapulgite With Phosphaphenanthrene and Triazine‐Trione Groups for Improving Flame Retardancy of PBT Composites DOI
Wenlong Yang, Ming Li, Yu Zhang

et al.

Journal of Applied Polymer Science, Journal Year: 2024, Volume and Issue: 142(11)

Published: Dec. 16, 2024

ABSTRACT In this study, silane‐based phosphorus flame retardants (DOPO‐KH560) and nitrogen (TGIC‐KH550) were first synthesized via a ring‐opening addition reaction, the DOPO‐KH560 TGIC‐KH550 further grafted onto surface of ATP to obtain ATPD ATPT retardants, respectively. The resulting ATPT, with different phosphorus/nitrogen (P/N) ratios, then incorporated into poly(butylene terephthalate) (PBT) at loading 10 wt% improve retardancy mechanical integrity PBT composites. Specifically, composite containing 8 wt.% 2 achieved V‐0 rating an oxygen index (LOI) 28.3%, peak heat release rate (pHRR) total (THR) decreased by 29.4% 7.7% compared PBT. Due good interfacial adhesion between matrix, PBT/6ATPD/4ATPT exhibited tensile strength 58.7 MPa, exceeding PBT/ATP 9.7% 8.1%, As result, integration as not only improved fire resistance but also optimized properties

Language: Английский

Citations

0