Sulfur-Based Copolymeric Polyamidoamines as Efficient Flame-Retardants for Cotton.

ABSTRACT: The polyamidoamine derived from N,N'-methylenebisacrylamide (M) and glycine (G), M-G, has been shown to be an effective flame-retardant (FR) for cotton in horizontal flame spread tests (HFST), extinguishing the flame at 5% add-on. Its activity was attributed to its intrinsic intumescence. In vertical flame spread tests (VFST), M-G failed to extinguish the flame even at 30% add-on. Conversely, in VFST, the polyamidoamine derived from M and cystine (C), M-C, inhibited cotton combustion at 16% add-on, but in HFST failed to extinguish the flame below 12% add-on. Its activity was ascribed to the release of sulfur-containing volatiles acting as radical scavengers. In this work, the FR effectiveness of M-G_m-C_n copolymers with different G/C ratio was compared with that of the

SUBMITTER: Beduini A 

PROVIDER: S-EPMC6918177 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature