A phosphorus-containing diamine for flame-retardant, high-functionality epoxy resins. I. Synthesis, reactivity, and thermal degradation properties

Thermal stability and thermal degradation kinetics of epoxy resins with 2-(Diphenylphosphinyl)-1, 4-benzenediol were investegated by thermogravimetric analysis (TGA) at different heating rates of 5 K/min, 10 K/min, 20 K/min and 40 K/min. The thermal degradation kinetic mechanism and models of the modified epoxy resins were determined by Coast Redfern method.The results showed that epoxy resins modified with the flame retardant had more thermal stability than pure epoxy resin. The solid-state decomposition mechanism of epoxy resin and the modified epoxy resin corresponded to the controlled decelerating ځ˽̈́˰̵̳͂͆ͅ˼˰̴̱̾˰̸̵̈́˰̵̸̳̱̹̽̾̓̽˰̶̳̹̾̈́̿̾̓ͅ˰̶˸ځ˹˰̵̵͇͂˰̃˸́˽ځ˹2/3. The introduction of phosphorus-containing flame retardant reduced thermal degradation rate of epoxy resins in the primary stage, and promote the formation of carbon layer.

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Thermal degradation and flame retardancy of epoxy resins containing intumescent flame retardant

Journal of Thermal Analysis and Calorimetry ◽

10.1007/s10973-008-9766-8 ◽

2009 ◽

Vol 95 (2) ◽

pp. 605-608 ◽

Cited By ~ 78

Author(s):

M. Gao ◽

W. Wu ◽

Y. Yan

Keyword(s):

Thermal Degradation ◽

Flame Retardant ◽

Flame Retardancy ◽

Epoxy Resins ◽

Intumescent Flame Retardant

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A bio-based phosphaphenanthrene-containing derivative modified epoxy thermosets with good flame retardancy, high mechanical properties and transparency

RSC Advances ◽

10.1039/d1ra05709j ◽

2021 ◽

Vol 11 (49) ◽

pp. 30943-30954

Author(s):

Wei Peng ◽

Yu-xuan Xu ◽

Shi-bin Nie ◽

Wei Yang

Keyword(s):

Mechanical Properties ◽

Flame Retardant ◽

Flame Retardancy ◽

Epoxy Resins ◽

Flame Retardants ◽

The Past ◽

Phosphorus Containing ◽

Modified Epoxy

Phosphorus-containing flame retardants have received huge interest for improving the flame retardant behavior of epoxy resins (EP) over the past few decades.

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Bio-based, nontoxic and flame-retardant cotton/alginate blended fibres as filling materials: Thermal degradation properties, flammability and flame-retardant mechanism

Composites Part B Engineering ◽

10.1016/j.compositesb.2020.108038 ◽

2020 ◽

Vol 194 ◽

pp. 108038 ◽

Cited By ~ 7

Author(s):

Bin Wang ◽

Ping Li ◽

Ying-Jun Xu ◽

Zhi-Ming Jiang ◽

Chao-Hong Dong ◽

...

Keyword(s):

Thermal Degradation ◽

Flame Retardant ◽

Filling Materials ◽

Degradation Properties

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Bio-based calcium alginate nonwoven fabrics: Flame retardant and thermal degradation properties

Journal of Analytical and Applied Pyrolysis ◽

10.1016/j.jaap.2016.10.030 ◽

2016 ◽

Vol 122 ◽

pp. 13-23 ◽

Cited By ~ 13

Author(s):

Chuan-Jie Zhang ◽

Yun Liu ◽

Li Cui ◽

Chao Yan ◽

Ping Zhu

Keyword(s):

Thermal Degradation ◽

Flame Retardant ◽

Calcium Alginate ◽

Nonwoven Fabrics ◽

Degradation Properties

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Kinetics Study of Thermal Degradation of Epoxy Resins Modified with 2-(Diphenylphosphinyl)-1, 4-Benzenediol

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1053.240 ◽

2014 ◽

Vol 1053 ◽

pp. 240-244

Author(s):

Xiu Juan Tian ◽

Zhong Wei Wang ◽

Jun Gao

Keyword(s):

Thermal Degradation ◽

Epoxy Resins ◽

Phosphorus Content ◽

Degradation Kinetics ◽

Thermal Degradation Kinetics ◽

Ozawa Method ◽

Air Atmosphere ◽

Phosphorus Containing ◽

Modified Epoxy ◽

Kinetics Of

Phosphorus-containing epoxy resins with different phosphorus content were obtained from 2-(Diphenylphosphinyl)-1, 4-benzenediol (DPO-HQ) and biphenyl-A epoxy resin by crosslinking with 4, 4’-diaminodiphenylsulfone (DDS). The thermal degradation kinetics of the modified epoxy resins containing different phosphorus content were investigated by dynamic thermogravimetric analysis (TGA) under air atmosphere with different heating rate. The degradation of epoxy resins containing flame retardant components were found to be changed. The additive of phosphorus increases the carbon residue and improves the thermal stability at elevated temperature. The kinetics of thermal degradation was evaluated by Kissinger method and Flynn-Wall-Ozawa method, which do not require knowledge of the reaction mechanism. The results showed that the activation energies at lower degree of the degradation decreased with increasing of phosphorus content, while increased at higher degree of the degradation.

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