Surface modification of aramid fiber by plasma induced vapor phase graft polymerization of acrylic acid. I. Influence of plasma conditions

Wang, C.X.; Du, Ming; Lv, Jingchun; Zhou, Qingqing; Ren, Yu; Liu, G.L.; Gao, Dawei; Jin, Limin

doi:10.1016/j.apsusc.2015.05.036

Cited by 128 publications

(41 citation statements)

References 48 publications

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“…And the research results showed that para‐aramid can apparently reduce the heat parameters of TPU composites, while the smoke parameters still kept at a high level. In this case, a new idea appears that whether the flame retardancy of para‐aramid fiber can be further improved by using the modification technology …”

Section: Introductionmentioning

confidence: 99%

“…In this case, a new idea appears that whether the flame retardancy of para-aramid fiber can be further improved by using the modification technology. [17][18][19][20][21][22] Alkyl phosphonate compounds are developing rapidly as an environment-friendly halogen-free flame retardants. 23,24 The flame retardancy mechanism of alkyl phosphonate compounds is to form a compact carbonization layer through catalysis, to protect the internal materials from further combustion, and to inhibit the release of toxic gases.…”

Section: Introductionmentioning

confidence: 99%

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Properties of flame‐retardant TPU based on para‐aramid fiber modified with iron diethyl phosphinate

Chen

Wei

Wang

et al. 2018

Polymers for Advanced Techs

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In this paper, a new type of flame retardant (AF‐Fe) based on para‐aramid fiber (AF) which was modified with iron diethyl phosphinate was applied for thermoplastic polyurethane elastomer (TPU). The flame‐retardant properties of TPU were tested using cone calorimeter test, smoke density test, and thermogravimetric analysis/infrared spectrometry. The cone calorimeter test showed that AF‐Fe can greatly reduce the heat release rate, total heat release, smoke factor, and other parameters of TPU composites compared with the sample of TPU/AF. For example, the pHRR of the composite with 1.0 wt% AF‐Fe was reduced by 15.19% compared with the sample with the same content of pure AF. In addition, the smoke factor of TPU/AFFe3 was reduced by 50.52% and 15.63% compared with TPU0 and TPU/AF respectively. The results of smoke density test showed that the luminous flux of TPU/AFFe3 was increased by 79.26% compared with the sample of TPU/AF. The TG results revealed that the sample with TPU/AFFe3 had lower weight loss rate and higher char residue content at 700°C compared with the sample of TPU/AF.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Properties of flame‐retardant TPU based on para‐aramid fiber modified with iron diethyl phosphinate

Chen

Wei

Wang

et al. 2018

Polymers for Advanced Techs

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“…The aromatic rings present in the backbone of the fiber molecular structure promote high thermal stability [5]. Aramid fibers comprise a highly ordered arrangement of polymer chains yielding a rather smooth surface with reduced reactivity [3][4][5][6][7], high crystallinity (~76-95 %) and high mechanical strength [8,9].…”

Section: Introductionmentioning

confidence: 99%

Deposition of carbon nanotubes onto aramid fibers using as-received and chemically modified fibers

Rodríguez-Uicab

Avilés

González-Chi

et al. 2016

Applied Surface Science

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Multiwall carbon nanotubes (MWCNTs) oxidized by an acid treatment were deposited on the surface of as-received commercial aramid fibers containing a surface coating ("sizing"), and fibers modified by either a chlorosulfonic treatment or a mixture of nitric and sulfuric acids. The surface of the aramid fiber activated by the chemical treatments presents increasing density of CO, COOH and OH functional groups. However, these chemical treatments reduced the tensile mechanical properties of the fibers, especially when the nitric and sulfuric acid mixture was used. Characterization of the MWCNTs deposited on the fiber surface was conducted by scanning electron microscopy, Raman spectroscopy mapping and X-ray photoelectron spectroscopy. These characterizations showed higher areal concentration and more homogeneous distribution of MWCNTs over the aramid fibers for as-received fibers and for those modified with chlorosulfonic acid, suggesting the existence of interaction between the oxidized MWCNTs and the fiber coating. The electrical resistance of the MWCNT-modified aramid yarns comprising 1000 individual fibers was in the order of M Omega/cm, which renders multifunctional properties.CONACYT-CIAM (Mexico) 188089 CONICYT (Chile) 120003 "Fondo Mixto CONACYT-Gobierno del Estado de Yucatan" 24704

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“…As a result, the interaction between the aramid fiber and the polymer matrix is generally weak. Therefore, various chemical and physical methods like acid treatments , bromination , polymer coating , polymer grafting , carbon nanotube grafting , heat treatments , plasma treatment , and so on have been practiced on the aramid fiber surface to improve its adhesion with the rubber matrix. In addition to the above‐mentioned methods, the use of coupling agents was also been employed to enhance the fiber‐matrix adhesion.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the dispersion and adhesion of short aramid fibers in bromo‐isobutylene‐isoprene rubber using maleated polybutadiene resin via co‐vulcanization with 4, 4’ bis(maleimido)diphenylmethane

et al. 2018

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Composites based on brominated isobutylene‐isoprene rubber (BIIR) and 5‐mm short aramid fiber were prepared by varying the fiber content from 1 to 10 phr using 4, 4’ bismaleimido diphenyl methane (BMDM) and zinc oxide as the vulcanizing agent. Morphological analysis revealed that the fiber dispersion becomes inferior even at 5 phr loading due to fibrillation during mixing. As a result, the 10 phr fiber‐filled composite showed a brittle failure under a tensile deformation. To solve this problem, maleic anhydride‐grafted polybutadiene (MA‐g‐PB) resin was treated with the aramid fibers in the 1:1 ratio prior to mixing with the rubber matrix. Excellent fiber dispersion could be seen in both the visual image of the molded sheet and the scanning electron microscope image of the fractured surface. The stress–strain curve of the 10 phr fiber‐filled composite after the resin treatment showed a tough deformation behavior with a breaking elongation >100% indicating an enhanced fiber‐matrix adhesion. From the vulcanization studies of the fiber‐filled BIIR before and after the MA‐g‐PB resin treatment, it has been identified that a co‐crosslinking reaction between the MA‐g‐PB‐treated fiber and the BIIR matrix with BMDM via Alder‐ene and Diels‐Alder reactions is responsible for the enhanced fiber–matrix adhesion. POLYM. COMPOS., 40:2993–3004, 2019. © 2018 Society of Plastics Engineers

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Surface modification of aramid fiber by plasma induced vapor phase graft polymerization of acrylic acid. I. Influence of plasma conditions

Cited by 128 publications

References 48 publications

Properties of flame‐retardant TPU based on para‐aramid fiber modified with iron diethyl phosphinate

Properties of flame‐retardant TPU based on para‐aramid fiber modified with iron diethyl phosphinate

Deposition of carbon nanotubes onto aramid fibers using as-received and chemically modified fibers

Enhancing the dispersion and adhesion of short aramid fibers in bromo‐isobutylene‐isoprene rubber using maleated polybutadiene resin via co‐vulcanization with 4, 4’ bis(maleimido)diphenylmethane

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