Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 1194-1206 |
| Number of pages | 13 |
| Journal | Fibers and Polymers |
| Volume | 19 |
| Issue number | 6 |
| Publication status | Published - Jun 2018 |
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Keywords
- polyamide 6
- composite filament yarns
- flame retardant additive
- flammability
- thermo-oxidative stability
- mechanical properties
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Influence of N-, P- and Si-based Flame Retardant Mixtures on Flammability, Thermal Behavior and Mechanical Properties of PA6 Composite Fibers. / Sehic, Alisa ; Vasiljevic, Jelena; Jordanov, Igor; Demsar, Andrej; Medved, Jozef; Jerman, Ivan ; Colovic, Marija ; Hewitt, Fiona; Hull, T. Richard; Simoncic, Barbara.
In: Fibers and Polymers, Vol. 19, No. 6, 06.2018, p. 1194-1206.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Influence of N-, P- and Si-based Flame Retardant Mixtures on Flammability, Thermal Behavior and Mechanical Properties of PA6 Composite Fibers
AU - Sehic, Alisa
AU - Vasiljevic, Jelena
AU - Jordanov, Igor
AU - Demsar, Andrej
AU - Medved, Jozef
AU - Jerman, Ivan
AU - Colovic, Marija
AU - Hewitt, Fiona
AU - Hull, T. Richard
AU - Simoncic, Barbara
N1 - This work was supported by the Slovenian Research Agency, Slovenia (Program P2-0213, Infrastructural Centre RIC UL-NTF) and the European COST Action FLARETEX (MP1105) “Sustainable flame retardancy for textiles and related materials based on nanoparticles substituting conventional chemicals”. The authors would like to thank Tomaž Stergar for his help in the melt-spinning process. A. Š. would like to thank to AquafilSLO d.o.o. for a Ph.D. grant.
PY - 2018/6
Y1 - 2018/6
N2 - This research investigated the influence of two flame retardant (FR) mixtures consisting melamine cyanurate (MeCy) and aluminum diethylphosphinate (AlPi), and MeCy and sodium aluminosilicate (SASi) at different weight ratios, on the flammability, thermal behavior and mechanical properties of polyamide 6 (PA6) composite yarns produced by meltspinning. The morphological and chemical properties of PA6/FR filaments were investigated by scanning electron microscopy and Fourier-transform infrared spectroscopy, flame retardancy by vertical burning test UL-94, thermal behavior by thermogravimetric and differential scanning calorimetric analyses, and mechanical properties by tensile tests. The results indicate that within the UL 94 V2 rating, the composite yarns differed significantly from each other in their burning and dripping behavior. The incorporation of both mixtures, MeCy+AlPi and MeCy+SASi, into the PA6/FR yarns significantly decreased the afterflame time relative to pristine PA6, confirming a lower production of flammable volatiles. This phenomenon was attributed mainly to MeCy, which caused an immediate extinguishment of the flame after the withdrawal of the igniting flame. Compared to one component MeCy, the incorporation of the MeCy+SASi mixture enhanced the thermooxidative stability of the PA6/FR yarns because of their additive effect at higher concentrations. In contrast, an antagonistic effect was obtained for the MeCy+AlPi mixture, irrespective of the concentration. Since the incorporation of MeCy+SASi did not drastically reduce the tensile properties of filaments, this mixture enables the production of the PA6/MeCy+SASi composite yarns with the enhanced flame retardancy and thermo-oxidative stability.
AB - This research investigated the influence of two flame retardant (FR) mixtures consisting melamine cyanurate (MeCy) and aluminum diethylphosphinate (AlPi), and MeCy and sodium aluminosilicate (SASi) at different weight ratios, on the flammability, thermal behavior and mechanical properties of polyamide 6 (PA6) composite yarns produced by meltspinning. The morphological and chemical properties of PA6/FR filaments were investigated by scanning electron microscopy and Fourier-transform infrared spectroscopy, flame retardancy by vertical burning test UL-94, thermal behavior by thermogravimetric and differential scanning calorimetric analyses, and mechanical properties by tensile tests. The results indicate that within the UL 94 V2 rating, the composite yarns differed significantly from each other in their burning and dripping behavior. The incorporation of both mixtures, MeCy+AlPi and MeCy+SASi, into the PA6/FR yarns significantly decreased the afterflame time relative to pristine PA6, confirming a lower production of flammable volatiles. This phenomenon was attributed mainly to MeCy, which caused an immediate extinguishment of the flame after the withdrawal of the igniting flame. Compared to one component MeCy, the incorporation of the MeCy+SASi mixture enhanced the thermooxidative stability of the PA6/FR yarns because of their additive effect at higher concentrations. In contrast, an antagonistic effect was obtained for the MeCy+AlPi mixture, irrespective of the concentration. Since the incorporation of MeCy+SASi did not drastically reduce the tensile properties of filaments, this mixture enables the production of the PA6/MeCy+SASi composite yarns with the enhanced flame retardancy and thermo-oxidative stability.
KW - polyamide 6
KW - composite filament yarns
KW - flame retardant additive
KW - flammability
KW - thermo-oxidative stability
KW - mechanical properties
M3 - Article
VL - 19
SP - 1194
EP - 1206
JO - Fibers and Polymers
JF - Fibers and Polymers
IS - 6
ER -