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

RSC Advances ◽  
2018 ◽  
Vol 8 (17) ◽  
pp. 9261-9271 ◽  
Author(s):  
Ke Liu ◽  
Yuanyuan Li ◽  
Lei Tao ◽  
Ru Xiao
Keyword(s):  
Flame Retardant ◽  
Melt Spinning ◽  
Polyamide 6 ◽  
Melt Polycondensation ◽  
Phosphorus Containing

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.

scholarly journals Effect of Different Flame-Retardant Bridged DOPO Derivatives on Properties of in Situ Produced Fiber-Forming Polyamide 6

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 657 ◽  
Author(s):  
Jelena Vasiljević ◽  
Marija Čolović ◽  
Nataša Čelan Korošin ◽  
Matic Šobak ◽  
Žiga Štirn ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Melt Spinning ◽  
Research Work ◽  
Polyamide 6 ◽  
Fibrous Materials ◽  
Comprehensive Properties ◽  
Novel Approach ◽  
Dispersion State ◽  
Spinning Process

The production of sustainable and effective flame retardant (FR) polyamide 6 (PA6) fibrous materials requires the establishment of a novel approach for the production of polyamide 6/FR nanodispersed systems. This research work explores the influence of three different flame-retardant bridged 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) derivatives on the comprehensive properties of in situ produced PA6/FR systems. To this end, in situ water-catalyzed ring-opening polymerization of ε-caprolactam was conducted in the presence of three different bridged DOPO derivatives, e.g., one P−N bond phosphonamidate derivative and two P−C bond phosphinate derivatives. The selected bridged DOPO derivatives mainly act in the gas phase at the temperatures that relatively match the PA6 pyrolysis specifics. The effects of the FRs on the dispersion state, morphological, molecular, structural, melt-rheological, and thermal properties of the in situ synthesized PA6 were evaluated. The specific advantage of this approach is one-step production of PA6 with uniformly distributed nanodispersed FR, which was obtained in the case of all three applied FRs. However, the applied FRs differently interacted with monomer and polymer during the polymerization, which was reflected in the length of PA6 chains, crystalline structure, and melt-rheological properties. The applied FRs provided a comparable effect on the thermal stability of PA6 and stabilization of the PA6/FR systems above 450 °C in the oxygen-assisted pyrolysis. However, only with the specifically designed FR molecule were the comprehensive properties of the fiber-forming PA6 satisfied for the continuous conduction of the melt-spinning process.

Preparation and Properties of Recycled-Polyester Nanocomposite Fibers Synergistic Modified with Phosphorus Containing Flame-Retardant and α-Zirconium Phosphate

2014 ◽  
Vol 789 ◽  
pp. 174-177 ◽  
Author(s):  
Zhi Hao Wu ◽  
Li Li Li ◽  
Shuai Shuai Jiang ◽  
Ze Xu Hu ◽  
Yu Chen Mao ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Melt Spinning ◽  
Zirconium Phosphate ◽  
Oxygen Index ◽  
Fire Retardant ◽  
Limiting Oxygen Index ◽  
Phosphorus Containing ◽  
Fire Retardant Properties ◽  
Nanocomposite Fibers ◽  
Positive Effect

Recycled-polyester (RPET) was melt blended with the phosphorus-containing flame retardant (FRP) and α-zirconium phosphate (α-ZrP). The thermal properties of RPET/FRP/α-ZrP composites were analyzed. Modified RPET fibers were prepared through melt spinning of dried RPET nanocomposite chips. The mechanical properties and fire-retardant properties of RPET/FRP/α-ZrP fibers containing different α-ZrP contents were tested. The results show that the synergism of α-ZrP and FRP exerts a positive effect on the mechanical and the flame-retardant property of RPET, leading to nanocomposite fibers of 1.9cN/dtex and 31.6% limiting oxygen index (LOI) value.

Synthesis and characterization of a phosphorus-containing flame retardant with double bonds and its application in bismaleimide resins

RSC Advances ◽  
2015 ◽  
Vol 5 (123) ◽  
pp. 101480-101486 ◽  
Author(s):  
Song Li ◽  
Hongxia Yan ◽  
Shuyao Feng ◽  
Song Niu
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Synthesis And Characterization ◽  
Bismaleimide Resin ◽  
Phosphorus Containing ◽  
Reactive Phosphorus ◽  
Bismaleimide Resins

A novel reactive phosphorus-containing flame retardant was synthesized and used to modify bismaleimide resin. According to investigations, the modified bismaleimide resin has good mechanical properties, thermal stability and flame retardancy.

Performance Characterization of a Novel Flame Retardant Material Poly(lactic acid-co-melamine)

2013 ◽  
Vol 781-784 ◽  
pp. 479-482
Author(s):  
Jin Feng Xiong ◽  
Jing Pei Huo ◽  
Pai Peng ◽  
Zhao Yang Wang
Keyword(s):  
Lactic Acid ◽  
Flame Retardant ◽  
Char Yield ◽  
Poly Lactic Acid ◽  
Performance Characterization ◽  
Melt Polycondensation

Directly starting from D,L-lactic acid (LA) and melamine (MA), poly (lactic acid-co- melamine) [P(LA-co-MA)] as a kind of potential polymeric flame retardant is synthesized via melt polycondensation. The properties of P(LA-co-MA) s at different molar feed ratios are characterized by XRD, DSC and TGA. Most decomposition temperatures of P(LA-co-MA) s are higher than these of homopolymer poly (D,L-lactic acid) (PDLLA). For the char yield, all copolymers have higher char yield than PDLLA. Furthermore, the more MA in the feed content, the higher char yield.

Synthesis, Characterization and Flame Retardancy of Two Novels Amino Phosphate

2012 ◽  
Vol 554-556 ◽  
pp. 110-114
Author(s):  
Da Ming Ban ◽  
Yang Min ◽  
Yong Hang Zhang ◽  
Ou Zhao
Keyword(s):  
Thermal Stability ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Flame Retardant ◽  
Elemental Analysis ◽  
Flame Retardancy ◽  
Spectroscopic Data ◽  
Polyamide 6 ◽  
Phosphorus Containing ◽  
Thermal Stability Of

Two phosphorus-containing flame retardant (FR) were synthesized and incorporated in the backbone of polyamide 6(PA6) by polymerization. The structure and spectroscopic data of these flame retardant were determined by Fourier Transform Infrared Spectroscopy (FTIR) and Elemental analysis. Flame-retardancy and thermal property of PA6 modified with CEP, and MMP were examined by LOI and TGA. The LOI value of PA6 shows ascending trend by adding FRs, and it rise from 24 to 31%. TGA data revealed that FR improves thermal stability of PA6. The on-set temperature was added at least 20°C.

Preparation and characterization of flame-retardant melamine cyanurate/polyamide 6 nanocomposites byin situpolymerization

2009 ◽  
Vol 113 (4) ◽  
pp. 2109-2116 ◽  
Author(s):  
Zhi-Yong Wu ◽  
Wei Xu ◽  
Yao-Chi Liu ◽  
Jin-Kui Xia ◽  
Qian-Xin Wu ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Polyamide 6 ◽  
Melamine Cyanurate

scholarly journals In situ prepared polyamide 6/DOPO-derivative nanocomposite for melt-spinning of flame retardant textile filaments

2019 ◽  
Vol 166 ◽  
pp. 50-59 ◽  
Author(s):  
Jelena Vasiljević ◽  
Marija Čolović ◽  
Ivan Jerman ◽  
Barbara Simončič ◽  
Andrej Demšar ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Melt Spinning ◽  
Polyamide 6
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