A novel cyclic copolymer containing Si/P/N used as flame retardant and water repellent agent on cotton fabrics

Wei, Dongdong; Dong, Chaohong; Chen, Zhaohua; Liu, Jian; Li, Qun; Lu, Zhou

doi:10.1002/app.47280

Cited by 36 publications

(11 citation statements)

References 39 publications

(46 reference statements)

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“…A possible reason for this phenomenon is that the nitrogen oxide gas generated by the thermal decomposition of PNCTSi caused bubbling of the phosphorus-silicon char layer formed on the surface of the cotton fiber, and a part of the bubbles was broken to form flocs. 16,29,30 The above results indicate that PNCTSi had a synergistic flame resistance effect.…”

Section: Sem and Eds Analysismentioning

confidence: 62%

“…Poly[tetra(tetramethylcyclosiloxyl-piperazin)-phosphinic acid methyl ether] (PNCTSi) was prepared using chloromethyl dimethylchlorosilane, methyltriethoxysilane, phosphorus oxychloride, and piperazine. 25 The structure of PNCTSi is shown in Scheme 1 and was verified by 1 H-NMR, 13 C-NMR, and FT-IR spectroscopy. 1 H-NMR: δ 0.07 (inner cyclic siloxane groups of SiCH 3 ), 0.08 (outer cyclic siloxane groups of SiCH 3 ), 1.39 (CH 2 ), 3.077 (CH 2 on piperazine), 3.6 (P-O-CH 3 ).…”

Section: Synthesis Of Pnctsimentioning

confidence: 86%

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Polysiloxane Flame Retardant Containing Phosphorus and Nitrogen for Cotton Fabrics

Chen¹,

Wang²,

Zhang³

et al. 2021

aatcc j res

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Poly[tetra(tetramethylcyclosiloxyl-piperazin)-phosphinic acid methyl ether) (PNCTSi) was successfully synthesized, and its chemical structure was investigated by Fourier transform infrared spectra (FTIR) and nuclear magnetic resonance (1H-NMR and 13C-NMR) spectroscopy. The flammability and thermal decomposition behaviors of cotton fabrics treated with PNCTSi were systematically evaluated by limiting oxygen index (LOI), vertical burning test (UL-94), thermogravimetric analysis (TGA), and cone calorimetry. As a result, the LOI value reached 30.1% and the char length decreased to 10.3 cm when cotton fabrics were treated in 300 g/L of PNCTSi solution for 30 min. According to TGA results, the residual rate of treated cotton fabrics at 800 °C increased to 16.4%. The peak heat release rate (PHRR) and CO2/CO ratio significantly decreased.

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Section: Sem and Eds Analysismentioning

confidence: 62%

Section: Synthesis Of Pnctsimentioning

confidence: 86%

Polysiloxane Flame Retardant Containing Phosphorus and Nitrogen for Cotton Fabrics

Chen¹,

Wang²,

Zhang³

et al. 2021

aatcc j res

Self Cite

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“…4. All FTIR spectra show strong peaks at 3320 cm -1 and 2890 cm -1 , respectively, which are assigned to the stretching vibration absorption of -OH (Sahito et al 2015;Xu et al 2017) and C-H (Wei et al 2018;Wan et al 2019b). The characteristic absorption peaks of FR at 1402 cm -1 , 1262 cm -1 , 1080 cm -1 and 845 cm -1 are attributed to the absorption of C-N bond (Yang et al 2018) control lyocell and FR-lyocell show weak peak at 1660 cm -1 , which is attributed to the stretching vibrations of C=O bond (Wang et al 2016;Wan et al 2019a).…”

Section: Ftir Infrared and X-ray Diffractionmentioning

confidence: 99%

Synthesis of an effective halogen-free flame retardant rich in phosphorus and nitrogen for lyocell fabric

et al. 2021

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A novel effective halogen-free flame retardant (FR) rich in phosphorus (P) and nitrogen (N) was synthesized via Mannich and esterification reaction of ethanolamine, glyoxal, phosphoric acid and urea, and used for the preparation of durable flame retardant lyocell fabric (FR-lyocell). Its chemical structure was characterized by Fourier transform infrared spectra, 1 H and 31 P nuclear magnetic resonance spectra. Inductively coupled plasma emission spectrometry and elemental analysis were conducted to test the phosphorous, carbon and nitrogen contents. The results confirmed that the FR was successfully synthesized and grafted on the lyocell fabric via firm P-O-C covalent bonds. The limiting oxygen index of the FR-lyocell treated with 30 wt% flame retardant finishing solution is 44.6%, demonstrating high efficiency flame retardancy. The thermo-gravimetric analysis indicated that FR-lyocell degraded preferentially than that of the control sample and the char residue was 38.8 wt% at 800°C in N 2 atmosphere. In addition, the cone calorimeter test revealed that FRlyocell could not be ignited and the peak of heat release rate was much lower than that of original specimen. Furthermore, the char residue of FR-lyocell is compact and the I D /I G value is 0.771, exhibiting a super degree of carbonization. Moreover, TG-IR result revealed that FR played dual flame-retardant effect in the gaseous and condensed phases. The flame retardant finishing has a negligible impact on the mechanical properties of the fibers. In summary, FR-lyocell exhibits excellent flame retardancy and superior char forming capability, which is suitable for the preparation of flame retardant lyocell fibers.

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“…[24][25][26] The introduction of flame retardants is an effective strategy to improve the inflammable CFs and CF-based sensors. 27,28 Gao et al synthesized an ammonium salt of hexamethylenediamine-N,N,N 0 ,N 0 -tetra(methylphosphonic acid) and then attached it on the CF through the condensation reaction of hydroxyl groups. The limiting oxygen index of the treated CF reached 36.0% and remained 28.0% after 50 laundering cycles.…”

Section: Introductionmentioning

confidence: 99%

Facile fabrication of flame‐retardant and conductive cotton fabric via layer‐by‐layer assembly for human motion detection

Guan

Lai

et al. 2022

J of Applied Polymer Sci

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Flexible piezoresistive pressure sensors have great application potential in many emerging fields such as electronic skin, artificial intelligence and human healthcare. However, most of the sensors are flammable, which will easily initiate fire hazard in case of short circuit. Herein, a flame‐retardant and conductive cotton fabric (CF) was fabricated for piezoresistive pressure sensor by layer‐by‐layer (LBL) assembly of branched polyethyleneimine (b‐PEI) modified halloysite nanotubes (HNTs), phytic acid (PA) and graphene oxide (GO) and the subsequent thermal reduction of GO. The composite coating layer endowed the obtained CF with excellent flame retardancy. The limiting oxygen index of the CF reached 32.72% and the char length after vertical burning test was only 3.8 cm, attributing to the physical barrier role of the HNTs and graphene nanosheets as well as the phosphorus‐nitrogen synergism between PA and b‐PEI. The CF‐based piezoresistive pressure sensor exhibited fast and accurate response, good signal stability and fatigue resistance (3000 loading‐unloading cycles) and was able to be applied for detecting human motions including pulse beat, pronunciation and various physical activities. The preparation method in this work is simple, and the piezoresistive pressure sensor shows great application prospect in the field of flexible electronics with high safety.

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A novel cyclic copolymer containing Si/P/N used as flame retardant and water repellent agent on cotton fabrics

Cited by 36 publications

References 39 publications

Polysiloxane Flame Retardant Containing Phosphorus and Nitrogen for Cotton Fabrics

Polysiloxane Flame Retardant Containing Phosphorus and Nitrogen for Cotton Fabrics

Synthesis of an effective halogen-free flame retardant rich in phosphorus and nitrogen for lyocell fabric

Facile fabrication of flame‐retardant and conductive cotton fabric via layer‐by‐layer assembly for human motion detection

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