scholarly journals Synergistic Flame Retardant Effect of an Intumescent Flame Retardant Containing Boron and Magnesium Hydroxide

ACS Omega ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 3314-3321 ◽  
Author(s):  
Lianghui Ai ◽  
Shanshan Chen ◽  
Jinming Zeng ◽  
Liu Yang ◽  
Ping Liu
2013 ◽  
Vol 131 (7) ◽  
pp. n/a-n/a ◽  
Author(s):  
Jing Zhao ◽  
Cheng-Liang Deng ◽  
Shuang-Lan Du ◽  
Li Chen ◽  
Cong Deng ◽  
...  

Polymers ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 2900
Author(s):  
Linyuan Wang ◽  
Yue Wei ◽  
Hongbo Deng ◽  
Ruiqi Lyu ◽  
Jiajie Zhu ◽  
...  

Recently, widespread concern has been aroused on environmentally friendly materials. In this article, barium phytate (Pa-Ba) was prepared by the reaction of phytic acid with barium carbonate in deionized water, which was used to blend with intumescent flame retardant (IFR) as a flame retardant and was added to epoxy resin (EP). Afterward, the chemical structure and thermal stability of Pa-Ba were characterized by Fourier transform infrared (FTIR) spectroscopy and thermogravimetric analysis (TGA), respectively. On this basis, the flammability and flame retardancy of EP composites were researched. It is shown that EP/14IFR/2Ba composite has the highest limiting oxygen index (LOI) value of 30.7%. Moreover, the peak heat release rate (PHRR) of EP/14IFR/2Ba decreases by 69.13% compared with pure EP. SEM and Raman spectra reveal the carbonization quality of EP/14IFR/2Ba is better than that of other composites. The results prove that Pa-Ba can cooperate with IFR to improve the flame retardancy of EP, reducing the addition amount of IFR in EP, thus expanding the application range of EP. In conclusion, adding Pa-Ba to IFR is a more environmentally friendly and efficient method compared with others.


Author(s):  
Aiming Zhao ◽  
Yanmao Dong ◽  
Qiuyang Ni ◽  
Zhiyu Bao

Magnesium hydroxide/melamine phosphate borate (nano MH/MPB), a novel nano-composition intumescent flame retardant, was synthesized with the in-situ reaction method from MgCl2·6H2O sodium hydroxide (NaOH) and melamine phosphate borate (MPB) in the absence of H2O. The structure of the product was confirmed by EDAX IR and XRD. The effects of reaction temperature and time on the dimension of magnesium hydroxide were observed. The effects of mass ratio of magnesium hydroxide to MPB on the flame retardancy of nano-MH/MPB/EP were examined with the limiting oxygen test. The results show that the optimal condition of synthesis of MH/MPB is mMH/mMPB = 0.25, reacting under 75 ℃ for 30 minutes. Finally, the mechanism for flame retardancy of nano-MH/MPB/EP was pilot studied by means of IR of char layer and TG of MH/MPB.


2015 ◽  
Vol 38 (12) ◽  
pp. 2771-2778 ◽  
Author(s):  
Lijing Han ◽  
Weihong Wu ◽  
Yanxia Qi ◽  
Hongqiang Qu ◽  
Jianzhong Xu

RSC Advances ◽  
2016 ◽  
Vol 6 (81) ◽  
pp. 77545-77552 ◽  
Author(s):  
Lingfeng Xu ◽  
Caihong Lei ◽  
Ruijie Xu ◽  
Xiaoqing Zhang ◽  
Feng Zhang

α-ZrP was combined with polyphosphazene and formed a core–shell structure, which has a significant synergistic flame retardant performance in polypropylene.


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