Facile fabrication, mechanical property and flame retardancy of aerogel composites based on alginate and melamine-formaldehyde

Polymer ◽  
2019 ◽  
Vol 181 ◽  
pp. 121783
Author(s):  
Xin-Lei Li ◽  
Yan-Rong He ◽  
Zi-Ming Qin ◽  
Ming-Jun Chen ◽  
Hong-Bing Chen
2017 ◽  
Vol 9 (34) ◽  
pp. 29147-29156 ◽  
Author(s):  
Xia Zhou ◽  
Shuilai Qiu ◽  
Weiyi Xing ◽  
Chandra Sekhar Reddy Gangireddy ◽  
Zhou Gui ◽  
...  

2011 ◽  
Vol 396-398 ◽  
pp. 2145-2148
Author(s):  
Yuan Yuan Xu ◽  
Zheng Hong Guo ◽  
Zheng Ping Fang ◽  
Yu Wu

The flame performance and mechanical property of bi-layer polypropylene/intumescent flame retardant/clay (PP/IFR/clay) sheets with flame retardant selective distribution were studied. The cone calorimeter measurements demonstrated that the selective distributed IFR can further reduce the peak first heat release rate (PHRR1), especially for the reduction in normalized mass loss. The digital images for the char residues after cone tests suggested that the char layer formed by the IFR particles in the selective distribution PP samples was more rapid and effective. The presence of IFR particles decreased the tensile strength and fracture strain of PP/IFR composites. The IFR composite with IFR particles selective in one layer can improve the fracture strain.


2020 ◽  
Vol 385 ◽  
pp. 123755 ◽  
Author(s):  
Shuheng Wang ◽  
Xingguo Wang ◽  
Xuan Wang ◽  
Hongfei Li ◽  
Jun Sun ◽  
...  

2020 ◽  
Vol 1003 ◽  
pp. 205-212
Author(s):  
Fu Long Zhou ◽  
Hong Zhi Wu ◽  
Ming Mei Sun ◽  
Xin Zhu ◽  
Lin Sheng Tang

A new triazine charring agent, melamine formaldehyde resin modified with pentaerythritol (named as MF-MPOL), was synthesized through hydroxymethylation, condensation and etherification by using melamine, paraformaldehyde and pentaerythritol as raw materials, and characterized by solid-state 13C NMR and FT-IR. The intumescent flame retardant (IFR) consisting of MF-MPOL with ammonium polyphosphate has good flame retardancy in polypropylene (PP). The analysis of the residues obtained in cone calorimetry test showed that the IFR played a role of flame retardancy mainly in condensed phase. In other words, the porous and dense - continuous intumescent char layer formed during the burning process results in flame retardant effect by insulation of heat, oxygen and preventing the underlying PP from degradation and volatilization of pyrolytic products.


RSC Advances ◽  
2017 ◽  
Vol 7 (62) ◽  
pp. 39270-39278 ◽  
Author(s):  
Dong Yu Zhu ◽  
Jian Wei Guo ◽  
Jia Xing Xian ◽  
Shu Qin Fu

Two efficient sulfonate flame retardants based on adamantane endow PC composites with excellent flame retardancy and mechanical property.


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