scholarly journals A highly efficient chemical approach to producing green phosphorylated cellulosic macromolecules

RSC Advances ◽  
2021 ◽  
Vol 11 (39) ◽  
pp. 24206-24216
Author(s):  
El-Houssaine Ablouh ◽  
François Brouillette ◽  
Moha Taourirte ◽  
Houssine Sehaqui ◽  
Mounir El Achaby ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Fire Resistance ◽  
Adhesion Properties ◽  
Cellulosic Fibers ◽  
Highly Efficient ◽  
Chemical Approach ◽  
Phosphate Groups ◽  
Adsorbent Materials

The introduction of phosphate groups into cellulosic fibers allows for the tuning of their fire resistance, chelating and metal-adhesion properties, enabling the development of flame-retardant adhesive and adsorbent materials.

Highly efficient flame‐retardant and transparent epoxy resin

2021 ◽  
Author(s):  
Zhong Liu ◽  
Zhao Yu ◽  
Tang Qiaolin ◽  
Zhang Kaixin ◽  
Deng Weihao ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Epoxy Resin ◽  
Highly Efficient

scholarly journals Viscoelastic Polyurethane Foam with Keratin and Flame-Retardant Additives

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1380
Author(s):  
Krystyna Wrześniewska-Tosik ◽  
Joanna Ryszkowska ◽  
Tomasz Mik ◽  
Ewa Wesołowska ◽  
Tomasz Kowalewski ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Thermal Resistance ◽  
Flame Retardant ◽  
Fire Resistance ◽  
Release Rate ◽  
Structure And Properties ◽  
Burning Behavior ◽  
Keratin Fibers ◽  
Scanning Electron

Viscoelastic polyurethane (VEPUR) foams with increased thermal resistance are presented in this article. VEPUR foams were manufactured with the use of various types of flame retardant additives and keratin fibers. The structure of the modified foams was determined by spectrophotometric-(FTIR), thermal-(DSC), and thermogravimetric (TGA) analyses as well as by scanning electron microscopy (SEM). We also assessed the fire resistance, hardness, and comfort coefficient (SAG factor). It was found that the use of keratin filler and flame retardant additives changed the foams’ structure and properties as well as their burning behavior. The highest fire resistance was achieved for foams containing keratin and expanding graphite, for which the reduction in heat release rate (HRR) compared to VEPUR foams reached 75%.

Highly efficient, transparent, and environment-friendly flame-retardant coating for cotton fabric

2021 ◽  
pp. 130556
Author(s):  
Wenhui Rao ◽  
Junjiao Shi ◽  
Chuanbai Yu ◽  
Hai-Bo Zhao ◽  
Yu-Zhong Wang
Keyword(s):  
Flame Retardant ◽  
Cotton Fabric ◽  
Environment Friendly ◽  
Highly Efficient

Functionalization of cellulosic fibers with a kaolinite-TiO2 nano-hybrid composite via a solvothermal process for flame retardant applications

2021 ◽  
Vol 266 ◽  
pp. 118108
Author(s):  
Carlos Rafael Silva de Oliveira ◽  
Marcos Antonio Batistella ◽  
Selene Maria de Arruda Guelli Ulson de Souza ◽  
Antônio Augusto Ulson de Souza
Keyword(s):  
Flame Retardant ◽  
Hybrid Composite ◽  
Solvothermal Process ◽  
Cellulosic Fibers

Influence of red phosphorous-based flame retardant on the fire resistance of a C-PEKK laminate subjected to a kerozene flame

2021 ◽  
Author(s):  
Alexis Coppalle ◽  
Benoit Vieille ◽  
Eliot Schuhler ◽  
Avinash Chaudhary ◽  
Loic Le Pluart ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Fire Resistance

scholarly journals RESEARCH OF FEATURES AND COMPOSITIONS OF VERMICULITE FOR USE AS SUSPENSION FIRE RETARDANT FOR TEXTILE MATERIALS

2020 ◽  
Vol 2020 (2) ◽  
pp. 64-69
Author(s):  
I Khaidarov ◽  
◽  
R Ismailov
Keyword(s):  
Mechanical Properties ◽  
Flame Retardant ◽  
Fire Resistance ◽  
Orthophosphoric Acid ◽  
Fire Retardant ◽  
Physical And Mechanical Properties ◽  
Textile Materials ◽  
Dispersed Particles ◽  
Expanded Vermiculite ◽  
Smoke Generation

This article presents studies of fire resistance in the treatment of expanded vermiculite, which depends on the size of the dispersed particles and the orientation of the granules, their moisture and temperature. It has been studied that one of the interesting and important in practice properties of vermiculite is its ability to swell and turn into a lightweight effective material for imparting fire resistance. The properties and compositions of vermiculite from the Tebinbulak deposit are studied, from which a flame-retardant suspension is prepared for processing textile materials based on vermiculite dissolved in orthophosphoric acid and alkali in an aqueous medium. When modifying materials with developed flame-retardant suspensions, it is possible to obtain fire-resistant textile materials that meet the requirements of GOST for fire resistance, smoke generation and other physical and mechanical properties.

Hole transporting materials for perovskite solar cells: a chemical approach

2018 ◽  
Vol 47 (23) ◽  
pp. 8541-8571 ◽  
Author(s):  
Javier Urieta-Mora ◽  
Inés García-Benito ◽  
Agustín Molina-Ontoria ◽  
Nazario Martín
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Highly Efficient ◽  
Chemical Approach ◽  
Hole Transporting ◽  
Hole Transporting Materials

In this review, the contribution of chemistry towards producing new and innovative hole-transporting materials for highly efficient perovskite solar cells is presented in a rational and systematic manner.

A facile one-step synthesis of highly efficient melamine salt reactive flame retardant for epoxy resin

2020 ◽  
Vol 55 (27) ◽  
pp. 12836-12847 ◽  
Author(s):  
Zongmin Zhu ◽  
Panlong Lin ◽  
Hao Wang ◽  
Luoxin Wang ◽  
Bin Yu ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Epoxy Resin ◽  
Highly Efficient ◽  
Melamine Salt ◽  
One Step ◽  
Reactive Flame Retardant

Synthesis and Application of a Novel Intumescent Flame Retardant Containing Ferrocenyl

2014 ◽  
Vol 1033-1034 ◽  
pp. 931-936
Author(s):  
Cong Yan Chen ◽  
Rui Lan Fan ◽  
Guan Qun Yun
Keyword(s):  
Thermal Stability ◽  
Flame Retardant ◽  
Flame Retardants ◽  
Intumescent Flame Retardant ◽  
Limiting Oxygen Index ◽  
Good Thermal Stability ◽  
H Nmr ◽  
Positive Effect ◽  
Thermal Stability Of ◽  
Phosphate Groups

A novel intumescent flame retardant (IFR) containing ferrocene and caged bicyclic phosphate groups, 1-oxo-4-[4'-(ferrocene carboxylic acid phenyl ester)] amide-2, 6, 7-trioxa-1-phosphabicyclo- [2.2.2] octane (PFAM), was successfully synthesized. The synthesized PFAM were added to flammable polyurethane (PU) as flame retardants and smoke suppressants. The structure of PFAM was characterized by Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (1H NMR) and elemental analysis. Thermal stability of PFAM was tested by themogravimetric analysis (TGA). The results revealed that PFAM had good thermal stability and high char weight, the char weight up to 54% at 600 °C. Flammability properties of PU/PFAM composites were investigated by limiting oxygen index (LOI) test and UL-94 test, respectively. The results of LOI tests showed that the addition of PFAM enhanced flame retardancy of PU. When the content of PFAM reaches to 3%, the LOI value is 22.2. The morphologies of the char for PU and PU/3% PFAM composite can be obtained after LOI testing were examined by SEM. The results demonstrated that PFAM could promote to form the compact and dense intumescent char layer. Experiments showed that, the PFAM application of polyurethane showed positive effect.

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