Preparation and characterization of polyamide 6 fibre based on a phosphorus-containing flame retardant

Liu, Ke; Li, Yuanyuan; Tao, Lei; Xiao, Ru

doi:10.1039/c7ra13228j

Cited by 67 publications

(48 citation statements)

References 39 publications

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“…The spectra of PA6 fibers and PA6/PDA fibers are shown in Figure (a). As shown in Figure (a), both PA6 fibers and PA6/PDA fibers showed peaks at 3300 cm −1 , 1641 cm −1 , and 1264 cm −1 , which corresponds to NH stretching vibration, CO stretching vibration (Amide I) and CN stretching vibration (amide III) in PA6, respectively . The peaks at 1534 cm −1 was due to NH deformation and CN stretching (Amide II) .…”

Section: Resultsmentioning

confidence: 91%

“…As shown in Figure (a), both PA6 fibers and PA6/PDA fibers showed peaks at 3300 cm −1 , 1641 cm −1 , and 1264 cm −1 , which corresponds to NH stretching vibration, CO stretching vibration (Amide I) and CN stretching vibration (amide III) in PA6, respectively . The peaks at 1534 cm −1 was due to NH deformation and CN stretching (Amide II) . In addition, some new peaks appeared in the spectra of PA6/PDA fibers: the absorbances at 1566 cm −1 was ascribed to the aromatic rings in PDA .…”

Section: Resultsmentioning

confidence: 92%

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Preparation of silver nanoparticle functionalized polyamide fibers with antimicrobial activity and electrical conductivity

Jiang

Zhou

Guo

et al. 2019

J of Applied Polymer Sci

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In this work, silver nanoparticle functionalized polyamide 6 (PA6) fibers were prepared using the electroless plating method. The surface of PA6 fibers was modified by exploiting dopamine/CuSO4/H2O2 system prior to electroless plating to enhance the bonding force between the fiber and the silver nanoparticles. It was found that both the formation rate and the chemical stability of polydopamine (PDA) coatings on the PA6 fiber surface were improved by the introduction of CuSO4/H2O2. The results confirmed the successful deposition of silver nanoparticles on PA6 fiber surface and the average particle diameter of 223 nm. Compared with uncoated fibers, the silver plated PA6 fibers exhibited excellent antimicrobial activity to both Escherichia coli and Staphylococcus aureus (with an antimicrobial efficiency of 99.9% and 100%, respectively). The electrical resistance of the silver coated PA6 fibers reached 0.98 Ω over a length of 1 cm, indicating a good electrical conductivity. In particular, coating durability of the formed silver layer was investigated by subjecting the fibers to various mechanical deformations, and the results showed that the formed silver layer was maintained well after 50 times of cyclic stretching at a constant displacement of 10 mm. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47584.

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Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 92%

Preparation of silver nanoparticle functionalized polyamide fibers with antimicrobial activity and electrical conductivity

Jiang

Zhou

Guo

et al. 2019

J of Applied Polymer Sci

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“…Finally, P-CH 2 stretching vibrations are observable at 1436 cm −1 and in good accordance with the literature, too. 28 To confirm the above-mentioned relationships between the incorporation of the phosphorus compounds into the polymer chain and their reaction with the amino end groups of the PA, 1 H and 31 P-NMR measurements were conducted. In case of the 3-HPP-containing FR-PA6-5, there are two possible ways of comonomer incorporation.…”

Section: Resultsmentioning

confidence: 99%

“…Absorption bands observable at 1260 cm −1 (DDP‐containing FR‐PA) and 1230 cm −1 (3‐HPP‐containing FR‐PA) are caused by the PO stretching mode. Finally, P‐CH 2 stretching vibrations are observable at 1436 cm −1 and in good accordance with the literature, too …”

Section: Resultsmentioning

confidence: 99%

“…Although both phosphorus compounds possess a somewhat bulky structure, their incorporation obviously does not affect the extent of hydrogen bonding between the individual PA chains. This is in contrast to reports on a decrease in both T m and T c with increasing P‐content using flame‐retardant additives for which the findings were attributed to the rigid structure of the flame retardant, which hinders crystallization . This is obviously not the case here.…”

Section: Resultsmentioning

confidence: 99%

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Syntheses of intrinsically flame‐retardant polyamide 6 fibers and fabrics

Mourgas

Giebel

Schneck

et al. 2019

J of Applied Polymer Sci

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In this study, flame‐retarded polyamide 6 (FR‐PA6) was prepared via the direct co‐condensation of ε‐caprolactam with two different organophosphorus compounds in a typical melt‐polymerization process. Polymer microstructures, especially the incorporation of the phosphorus‐containing comonomers, as well as the thermal and physical properties of the resulting copolyamides have been studied in detail. The phosphorus‐modified PAs have a P‐content of 0.10–0.30 wt %, possess high relative viscosities of 2.2–2.4 and good thermal stability. FR‐PA6 multifilaments were prepared by melt spinning and show tensile strengths up to 40 cN/tex and tenacities up to 0.5 GPa. Knitted fabrics of FR‐PA6 exhibit high limiting oxygen index values around 35%. Due to the very low phosphorus content, there is no impairment of the material properties of PA6. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47829.

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Breath‐Figure Self‐Assembled Low‐Cost Janus Fabrics for Highly Efficient and Stable Solar Desalination

Tian

Zhang

et al. 2022

Adv Funct Materials

110

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Solar‐driven interfacial evaporation materials for seawater desalination and wastewater treatment have attracted extensive research interest in recent years. Nevertheless, salt accumulation, costly materials, and complex preparation processes greatly hinder the practical application of solar steam generation. Herein, with low‐cost materials such as carbon black (CB), polystyrene‐b‐polybutadiene‐b‐polystyrene (SBS), and commercial cotton fabric, the CB@SBS/cotton fabric Janus evaporator is fabricated via a breath figure template (BFT) method for scalable, long‐term, and stable solar‐driven interfacial desalination. The BFT is a simple yet efficient self‐assembly method that endows the hydrophobic surface of CB@SBS/cotton fabric with a porous structure for high light absorption (≈95.5%) and steam escape. As a result, the CB@SBS/cotton fabric Janus evaporator can achieve a water evaporation rate of 1.37 kg m–2 h–1 and conversion efficiency of 91.3% even in a 3.5 wt% NaCl solution, as well as stably cycling over 15 times without salt accumulation (each cycle: 8 h for illumination and 16 h for rest). The work demonstrates an effective strategy for achieving high‐performance solar steam generation and superior salt rejection capability, which can be potentially utilized in seawater desalination, sterilization, and disinfection.

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Preparation and characterization of polyamide 6 fibre based on a phosphorus-containing flame retardant

Abstract: Intrinsically flame retardant polyamide 6 (FRPA6) was synthesized by melt polycondensation of caprolactam and 9,10-dihydro-10-[2,3-di(hydroxycarbonyl)propyl]-10-phosphaphenanthrene-10-oxide (DDP). And the FRPA6 fibres were prepared by melt spinning.

Cited by 67 publications

References 39 publications

Preparation of silver nanoparticle functionalized polyamide fibers with antimicrobial activity and electrical conductivity

Preparation of silver nanoparticle functionalized polyamide fibers with antimicrobial activity and electrical conductivity

Syntheses of intrinsically flame‐retardant polyamide 6 fibers and fabrics

Breath‐Figure Self‐Assembled Low‐Cost Janus Fabrics for Highly Efficient and Stable Solar Desalination

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