Self-cleaning cotton fabrics with good flame retardancy via one-pot approach

Fu, Can; Wen, Ying; Zhai, Zhongjie; Zhang, Jing; Li, Pingyang; Xu, Baoyun; Li, Xiaolei; Gao, Fei; Zhai, Jinguo; Wang, De‐Yi

doi:10.1016/j.polymdegradstab.2021.109700

Cited by 21 publications

(11 citation statements)

References 57 publications

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“…The major gas‐phase pyrolysis products of CEPPA with matching degrees higher than 85% include benzene (1), 2‐phenylphenol (2), 1‐(2,6‐dihydroxyphenyl)‐3‐methyl‐2‐butene‐1‐ketone (3), 1‐(1,8‐dihydroxy‐3,6‐dimethylnaphthalene) ethyl‐1‐ketone (4) and 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (5). Notably, the existence of benzene (1) confirms that PO˙ and Ph˙ are released by the rupture of the PC bond in CEPPA, similar results have been obtained from literature 9,41 . In addition, as a radical scavenger, Ph˙ reacts with H˙, OH˙, CH 3 ˙, COCH 2 ˙, COCH 2 CH 2 ˙ and other radicals, produced by CEPPA cleavage, to form stable phenyl‐containing gas‐phase pyrolysis products (2–4) 9 .…”

Section: Resultssupporting

confidence: 77%

“…Notably, the existence of benzene (1) confirms that PO˙ and Ph˙ are released by the rupture of the PC bond in CEPPA, similar results have been obtained from literature 9,41 . In addition, as a radical scavenger, Ph˙ reacts with H˙, OH˙, CH 3 ˙, COCH 2 ˙, COCH 2 CH 2 ˙ and other radicals, produced by CEPPA cleavage, to form stable phenyl‐containing gas‐phase pyrolysis products (2–4) 9 . Furthermore, it is speculated that 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (5) originates from the rearrangement of radicals, which are generated from the thermal degradation of CEPPA 42 .…”

Section: Resultssupporting

confidence: 77%

“…The use of halogen‐based flame retardants has been severely restricted due to the release of toxic gases such as dibenzo‐ p ‐dioxin during combustion, which persists in the environment and is toxic to various organisms including humans. Phosphorus‐based flame retardants have the characteristics of low toxicity, low smoke formation, environmental benignity and highly efficient flame resistance, and are the primary substitutes for halogen‐based flame retardants 6–9 . Phosphorus‐based flame retardants may release phosphorus‐containing radicals, which interrupt exothermic radical chain reaction in the gas phase during the combustion of polyamides.…”

Section: Introductionmentioning

confidence: 99%

“…Phosphorus-based flame retardants have the characteristics of low toxicity, low smoke formation, environmental benignity and highly efficient flame resistance, and are the primary substitutes for halogen-based flame retardants. [6][7][8][9] Phosphorus-based flame retardants may release phosphorus-containing radicals, which interrupt exothermic radical chain reaction in the gas phase during the combustion of polyamides. In addition, highly oxygenated phosphorus-based flame retardants may promote the formation of dense and nonflammable char layers at the surface of degrading polymer.…”

Section: Introductionmentioning

confidence: 99%

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Flame‐retardant polyamide 56 with high fire safety and good thermal performance

Yang

Gao

Liu

et al. 2022

Polymers for Advanced Techs

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As a recently developed biobased polyamide, polyamide 56 (PA56) has great potential in the field of fibers and textiles due to its high strength, high moisture absorption, and easy dyeing. However, the application of PA56 is restricted due to its flammability. Flame‐retardant PA56 copolymers (FRPA56s) have been designed and successfully synthesized by the introduction of 2‐carboxyethyl(phenyl)phosphinic acid (CEPPA) monomer. The thermal properties and thermal stability of FRPA56s have been evaluated using DSC and TGA, respectively. The flammability behavior of the resultant copolymer has been investigated using UL94 vertical burning and cone calorimetry tests. The crystallization temperature (Tc), melting temperature (Tm), and crystallinity (Xc) of FRPA56s are reduced and the degradation pathway for PA56 is changed with the introduction of CEPPA. In addition, FRPA56 containing 7.8 mol% CEPPA may be characterized by a V‐0 rating in the UL94 vertical burning test and its total heat release is reduced 20% than that of PA56, reflecting the high flame‐retardant efficiency of CEPPA. Based on the analysis of the residual char and the gas‐phase pyrolysis products for combustion of FRPA56s, it is concluded that the flame‐retardant modes of action for this material mainly include flame inhibition, dilution effect and charring.

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Section: Resultssupporting

confidence: 77%

Section: Resultssupporting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Flame‐retardant polyamide 56 with high fire safety and good thermal performance

Yang

Gao

Liu

et al. 2022

Polymers for Advanced Techs

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“…In this work, BiVO4 and P-containing FR [174] will be applied to cotton with assistant of PDA, as shown in Figure 5-1. In our previous work in Chapter 4, PDA was proved to enhance the durability of FR property as a "molecular glue".…”

Section: Discussionmentioning

confidence: 99%

Design and study of multifunctional fabrics

Chen¹

Self Cite

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The increasing demands to address the flammability of cotton fabrics, lead to a substantial growth of applying flame retardant (FR) systems to cotton fabrics in recent years. Nevertheless, due to the growing need for multiple functionalities and sophisticated applications, a combination of several properties become a development tendency in meeting expectations for today's high-performance functional fabrics. Notably, everlasting challenge for functional fabrics is the washing fastness. Therefore, aiming to fabricate target multifunctional fabrics, a novel FR molecule was designed to impart cotton fabrics FR and hydrophobic properties simultaneously. Furthermore, in order to address the durability issues, surface engineering was constructed by introducing polydopamine (PDA) as a "molecular glue" to stack the FRs on cotton robustly. Finally, multifunctional fabrics with high-performance and simultaneously improved washing fastness was realised. To well illustrate mechanism behind the improved FR, self-cleaning, UV-protection properties and washing durability, influence of synthesized functional molecular to decomposition of cellulose, the role of BiVO4 in Chapter 5 as a new introduction in the catalytic charring process, and the interaction between PDA cover and FR molecular or BiVO4 which lead to durability have been systematically investigated. The details of the work are presented as follows:In Chapter 3, non-halogen functional coatings consisted of water-soluble phenylphosphinyl and amine-containing silanol (WPAS) were prepared, in which functional cotton fabrics embraced with FR and hydrophobic properties simultaneously. The prepared WPAS-coated functional fabrics reached as high as 30.4% for limiting oxygen index (LOI) value, and extinguished immediately after removing the ignitor in vertical fire test. PO• free radicals released by WPAS which was detected by TG-MS and TG-FTIR, captured radicals such as H• or HO• radicals in the gas-phase. The char residue study from SEM, FTIR, Raman and XPS results found that P/Si/N thermostable ceramic char layer and aromatic carbonaceous structures formed which could provide a good barrier effect, effectively hindering diffusion of oxygen and transferring of heat into the flame zone. Additionally, water contact angle of functional cotton fabrics increased to 145° compared with that of pristine cotton fabrics (0°). As a result, it displayed hydrophobic self-cleaning property towards a series of common liquids in daily life. This convenient, eco-friendly one-pot approach is promising, and feasible for large-scale production of functional cotton fabrics with both excellent FR and hydrophobic self-cleaning properties to end-use industrial applications.In Chapter 4, The layers consisted of phenylphosphonic acid (PHA) and 3aminopropyltriethoxysilane (APTES) was deposited on PDA-coated cotton by Lay-by-Layer (LbL) assembly. The prepared cotton reached 31.4% of LOI value, and extinguished immediately after removing the ignitor. Peak of heat release rate (pHRR) attenuated around 3...

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Synthesis and Characterization of a New Copolymer Consisting of Polyamide 1210 and Reactive Phosphorus−Nitrogen Flame‐Retardant

Qin

Zhou

Gong

et al. 2022

Macromol. Rapid Commun.

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The thermal stability and reactivity of organophosphorus flame-retardants play a critical role in synthesizing copolymerized flame-retardant polyamides. Herein, this work successfully synthesizes a flame-retardant CEPPA-DDA salt (CDS) with both good thermal stability and high reactivity by reacting 2-carboxyethyl phenyl phosphonic acid (CEPPA) with 1,12-dodecanediamine (DDA). Flame-retardant polyamide 1210 (FRPA) is further prepared by copolymerizing the CDS, DDA, and sebacic acid (SEA). The test results show that the introduction of CDS can significantly improve the flame-retardant properties of FRPA. Specifically, the flame-retardant polyamide 1210 (FRPA-7) with 7 wt% CDS addition can reach V-0 grade according to UL-94 standard, accompanying limiting oxygen index value of 30.2% and tensile strength of 38.62 MPa. Compared with pure polyamide 1210, the peak heat release rate and total heat release rate of FRPA-7 reduce by 24.11% and 9.40%, respectively. This study provides a simple strategy to prepare flame-retardant polyamides with high flame retardancy and good mechanical properties, which are expected to show great potentials in future industrial applications.

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Self-cleaning cotton fabrics with good flame retardancy via one-pot approach

Cited by 21 publications

References 57 publications

Flame‐retardant polyamide 56 with high fire safety and good thermal performance

Flame‐retardant polyamide 56 with high fire safety and good thermal performance

Design and study of multifunctional fabrics

Synthesis and Characterization of a New Copolymer Consisting of Polyamide 1210 and Reactive Phosphorus−Nitrogen Flame‐Retardant

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