CHAPTER 12. Flame Retardancy of Phosphorus-Containing Polymers

Sonnier, Rodolphe; Ferry, Laurent; Lopez‐Cuesta, José‐Marie

doi:10.1039/9781782624523-00252

Cited by 14 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…LOI values were 22, 28 and 40e45 for PA11 commercial grade, PAx/0.5P, and PAx/1P respectively. Such an increase is particularly impressive compared to previous results reported in literature [43]. Fig.…”

Section: Thermal and Flame Retardancy Propertiessupporting

confidence: 67%

Self-extinguishing bio-based polyamides

Négrell

Frénéhard

Sonnier

et al. 2016

Polymer Degradation and Stability

Self Cite

View full text Add to dashboard Cite

Section: Thermal and Flame Retardancy Propertiessupporting

confidence: 67%

Self-extinguishing bio-based polyamides

Négrell

Frénéhard

Sonnier

et al. 2016

Polymer Degradation and Stability

Self Cite

View full text Add to dashboard Cite

“…12 shows the relation between the flame test results and the phosphorus content. It is well known that flame retardancy level depends mainly on the phosphorus content in the sample [41]. Selfextinguishing behavior was observed when phosphorus concentrations in flax fabrics exceeded 0.5 wt%.…”

Section: Effect Of Phosphorus On the Flammability Of Flax Fabricsmentioning

confidence: 99%

Influence of monomer reactivity on radiation grafting of phosphorus flame retardants on flax fabrics

Hajj

Otazaghine²,

Sonnier³

et al. 2019

Polymer Degradation and Stability

Self Cite

View full text Add to dashboard Cite

Flax fabrics were modified by radiation grafting method to improve their flame retardancy. Several phosphonated monomers with different carbon-carbon double bond reactivity were grafted. According to 1 H NMR carried out on irradiated monomers solubilized in water, the reactivity is the highest for (acryloyloxy)methyl phosphonic acid (hPAAPC1), and the lowest for allyl phosphonic acid (APA). Nevertheless, grafting yield on flax, assessed by X-ray fluorescence and scanning electron microscopy showed a different tendency. Especially (methacryloyloxy)methyl phosphonic acid (hPMAPC1) and vinyl phosphonic acid (VPA) appear to be highly grafted. In all cases, diffusion of the molecules into the flax elementary fibers bulk was observed. The choice of the solvent in washing step after the irradiation step showed to be effective to control the final phosphorus content in flax fabrics. The effect of phosphorus grafting on thermal properties and fire behavior was studied using thermogravimetric analysis, pyrolysis combustion flow calorimetry and a preliminary fire test. According to the latter, self-extinguishing and non-flammable fabrics were obtained for phosphorus content of 0.5 wt% and 1.2 wt% respectively. Correlations with flammability at microscale were pointed out. Additional cone calorimeter tests highlight the influence of flame retardant treatment on flammability under forced flaming conditions.

show abstract

“…8 shows the relation between the fire test results and the phosphorus content. It is well known that flame retardancy level depends in many cases on the phosphorus content in the sample [41]. To reach self-extinguishing behavior, phosphorus concentrations in flax fabrics should be ranged between 0.5 and 1.5 wt% [17].…”

Section: Phosphorus Effect On Flax Fabrics Flammabilitymentioning

confidence: 99%

Grafting of phosphorus flame retardants on flax fabrics: Comparison between two routes

Hajj

Hage

Sonnier

et al. 2018

Polymer Degradation and Stability

Self Cite

View full text Add to dashboard Cite

Flax fabrics were modified through two grafting methods in order to improve their flame retardancy. Vinyl phosphonic acid was used to treat flax fabrics via a condensation reaction between phosphonic acid function and flax hydroxyl groups. It was also grafted under radiation conditions taking advantage of its carbon-carbon double bond. Grafting efficiency of each method was assessed by X-ray fluorescence and scanning electron microscopy. The effect of the phosphorus grafting on fire behavior was studied using thermogravimetric analysis, pyrolysis combustion flow calorimetry and a preliminary fire test. In all cases, the diffusion of the phosphorus molecules into the elementary fibers bulk was observed. Phosphorus content reached 1.4 wt% using radiation grafting, leading to self-extinguishing fabrics.

show abstract

CHAPTER 12. Flame Retardancy of Phosphorus-Containing Polymers

Cited by 14 publications

References 0 publications

Self-extinguishing bio-based polyamides

Self-extinguishing bio-based polyamides

Influence of monomer reactivity on radiation grafting of phosphorus flame retardants on flax fabrics

Grafting of phosphorus flame retardants on flax fabrics: Comparison between two routes

Contact Info

Product

Resources

About