Construction of bimetallic metal-organic frameworks/graphitic carbon nitride hybrids as flame retardant for unsaturated polyester resin

被引：11
作者：
Yang, B. [1 ]
Chen, Z. [1 ]
Yu, Y. [1 ,2 ]
Chen, T. [1 ,2 ]
Chu, Y. [1 ]
Song, N. [1 ]
Zhang, Q. [1 ]
Liu, Z. [1 ]
Jiang, J. [1 ,2 ]
机构：
[1] Nanjing Tech Univ, Coll Safety Sci & Engn, Nanjing 211816, Peoples R China
[2] Nanjing Tech Univ, Jiangsu Key Lab Hazardous Chem Safety & Control, Nanjing 211816, Peoples R China
来源：
MATERIALS TODAY CHEMISTRY | 2023年 / 30卷
基金：
中国国家自然科学基金;
关键词：
Graphitic carbon nitride; Bimetallic metal-organic frameworks; Compatibility; Flame retardant; ENHANCING FIRE SAFETY; THERMAL-DEGRADATION; MECHANISM; FRAMEWORK; GRAPHENE; NANOCOMPOSITES; COMPOSITES; OXIDE;
D O I：
10.1016/j.mtchem.2023.101482
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The use of unsaturated polyester resin (UPR) as a composite material is limited by its flammability and smoke generation properties, which pose a threat to human life and public safety. To address these concerns, a Co-Cu bimetallic metal-organic frameworks (MOFs)/graphitic carbon nitride (g-C3N4) hybrids (BMCN) were synthesized via a co-precipitation method and incorporated into UPR composites. The addition of 4 wt% BMCN was found to signiflcantly improve the flre safety of the UPR composites based on cone calorimetry tests (CCT), LOI, and UL-94 test.The results showed a decrease in peak smoke generation rate (pSPR) by 50%, peak heat release rate (pHRR) by 43.4%, and total smoke production (TSP) by 32.5%. The efflcacy of BMCN in suppressing smoke and heat release was further conflrmed through thermogravimetric analysis-infrared spectrometer (TG-IR) testing. The improved compatibility of BMCN with the UPR matrix also enhanced the flame retardancy and mechanical performance of the UPR composites. This study provides valuable insights into the development of g-C3N4-based flame retardants and bimetallic metal-doped flame retardants. (c) 2023 Elsevier Ltd. All rights reserved.
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页数：14
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