Radiation-​grafting of flame retardants on flax fabrics - A comparison between different flame retardant structures

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Teixeira Marie, Sonnier Rodolphe, Otazaghine Belkacem, Ferry Laurent, Aubert Melanie, Tirri Teija, Wilen Carl-Eric, Rouif Sophie
Förläggare: Elsevier
Publiceringsår: 2018
Tidskrift: Radiation Physics and Chemistry
Volym: 145
Artikelns första sida, sidnummer: 135
Artikelns sista sida, sidnummer: 142


Abstrakt

Three unsatd. compds. bearing resp. phosphate, aryl bromide and sulfenamide moieties were used as flame retardants (FR) for flax fabrics. Due to the presence of carbon-​carbon double bonds, radiation-​grafting was considered to covalently bond these FR onto fiber structure. Grafting efficiency and location of FR mols. were investigated by wt. measurements and SEM-​EDX observations. Flammability and esp. self-​extinguishment were assessed by thermogravimetric anal., pyrolysis-​combustion flow calorimetry and a non-​standardized fire test already used in previous studies. All FRs were able to diffuse into elementary fiber bulk. Nevertheless only the phosphonated monomer (noted FR-​P) was significantly grafted onto flax. Self-​extinguishment was obtained for fabrics contg. at least around 0.5 wt​% of phosphorus. On the contrary the FR content of flax fibers after radiation-​grafting procedure and washing was negligible for FR-​S and FR-​Br, evidencing that these mols. have not been grafted upon irradn. Moreover, the combination of these mols. prevents the radiation-​grafting of other mols. which showed good grafting rate when used alone.


Senast uppdaterad 2019-20-11 vid 05:06