scholarly journals Preparation and characterization of polydopamine/melamine microencapsulated red phosphorus and its flame retardance in epoxy resin

RSC Advances ◽  
2021 ◽  
Vol 11 (33) ◽  
pp. 20391-20402
Author(s):  
Chen Cheng ◽  
Yanling Lu ◽  
Weining Ma ◽  
Shaojie Li ◽  
Jun Yan ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Epoxy Resin ◽  
Shell Structure ◽  
Composite Shell ◽  
Intumescent Flame Retardant ◽  
Smoke Suppression ◽  
Flame Retardance ◽  
Red Phosphorus ◽  
Composite Shell Structure

Red phosphorus was coated by a polydopamine/melamine composite shell structure, which constituted an intumescent flame retardant with superior flame retardance and smoke suppression performance for epoxy resin.

The Effect of Intumescent Flame Retardant Contained Microencapsulated Red Phosphorus on the Flame Retardance and Thermal Degradation Behaviour of Epoxy Resin

2011 ◽  
Vol 197-198 ◽  
pp. 1167-1170
Author(s):  
Zhi Ping Wu ◽  
Yun Chu Hu ◽  
Mei Qin Chen
Keyword(s):  
Activation Energy ◽  
Thermal Degradation ◽  
Flame Retardant ◽  
Epoxy Resin ◽  
Flame Retardants ◽  
Degradation Process ◽  
Intumescent Flame Retardant ◽  
Flame Retardance ◽  
Red Phosphorus ◽  
Degradation Behaviour

The effect of intumescent flame retardant (IFR) contained microencapsulated red phosphorus on the flame retardance of E-44 epoxy resin (EP) was studied. The test results indicated that good flame retardancy can be realized when epoxy resin treated with 30% IFR. Thermogravimetric analysis showed that the charring amount at high temperature of EP can increase substantially when IFR was incorporated. In order to further explain this phenomenon, Dolye integration method of thermal degradation dynamics was employed to study the thermal degradation process of EP treated with IFR based on the microencapsulated red phosphrous according to the thermal gravimetry analysis results.The activation energy and reactor order of different thermal degradation stages were obtained. The results of thermal degradation dynamics implied the intumescent flame retardants can improve the flame retardance of the epoxy resin through decrease the degradation speed and increase the activation energy of the second thermal degradation stage.

scholarly journals Zeolitic imidazolate framework-8 was coated with silica and investigated as a flame retardant to improve the flame retardancy and smoke suppression of epoxy resin

RSC Advances ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 2575-2585 ◽  
Author(s):  
Wenzong Xu ◽  
Guisong Wang ◽  
Yucheng Liu ◽  
Rui Chen ◽  
Wu Li
Keyword(s):  
Flame Retardant ◽  
Epoxy Resin ◽  
Flame Retardancy ◽  
Shell Structure ◽  
Smoke Suppression ◽  
Core Shell ◽  
Zeolitic Imidazolate Framework ◽  
The Core ◽  
Core Shell Structure

Synthesis of the core–shell structure of ZIF-8@SiO2 and its effect on the flame retardancy of epoxy resin.

Functionalization of α-zirconium phosphate by polyphosphazene and its effect on the flame retardance of an intumescent flame retardant polypropylene system

RSC Advances ◽  
2016 ◽  
Vol 6 (81) ◽  
pp. 77545-77552 ◽  
Author(s):  
Lingfeng Xu ◽  
Caihong Lei ◽  
Ruijie Xu ◽  
Xiaoqing Zhang ◽  
Feng Zhang
Keyword(s):  
Flame Retardant ◽  
Shell Structure ◽  
Zirconium Phosphate ◽  
Intumescent Flame Retardant ◽  
Core Shell ◽  
Flame Retardance ◽  
System P ◽  
Core Shell Structure ◽  
Synergistic Flame Retardant

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

Piperazine-modified ammonium polyphosphate as monocomponent flame-retardant hardener for epoxy resin: flame retardance, curing behavior and mechanical property

2016 ◽  
Vol 7 (17) ◽  
pp. 3003-3012 ◽  
Author(s):  
Yi Tan ◽  
Zhu-Bao Shao ◽  
Lei-Xiao Yu ◽  
Jia-Wei Long ◽  
Min Qi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Flame Retardant ◽  
Epoxy Resin ◽  
Smoke Suppression ◽  
Flame Retardance ◽  
Suppression Efficiency

PAz-APP (as a monocomponent hardener) can bring excellent flame retardance and smoke suppression efficiency to the EP system without sacrificing the mechanical properties and glass transition temperature.

Sublimation of composite ice and its influence on performance of ice shells

2021 ◽  
Vol 36 (1) ◽  
pp. 67-77
Author(s):  
Yue Wu ◽  
Junkai Huang ◽  
Jiafeng Chen
Keyword(s):  
Numerical Simulation ◽  
Shell Structure ◽  
Composite Shell ◽  
Engineering Practice ◽  
Sublimation Rate ◽  
Long Span ◽  
Static Performance ◽  
New Type ◽  
Ice Sublimation ◽  
Composite Shell Structure

The long-span ice composite shell structure is a new type of ice and snow structure developed in recent years. The engineering practice of ice composite shell shows that sublimation is one of the important reasons for its damage and even collapse. In this paper, we firstly supplemented the existing H-K equation and obtained the revised ice sublimation equation through indoor evaporative plate experiment considering the influence of admixtures and wind speed. Afterwards, combining the simulations of solar radiation and CFD, the numerical simulation of sublimation distribution on the surface of were realized by programming in Grasshopper platform. During sublimation, the thickness of the ice composite shell decreases by 0.38 mm every 10 days and the sublimation rate on the sunny side was 1.7 times that on the shady side. Finally, the static performance and stability of the sublimated ice composite spherical shell were analyzed. After 70 days of sublimation, the thickness of the ice composite shell structure becomes thinner and uneven, which leads its sensitivity to external load increases.

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