Adhesion Activation of Twaron Aramid Fibers for Application in Rubber: Plasma
<i>Versus</i>
Chemical Treatment

Lange, Pieter J. de; Akker, Peter G.

doi:10.1163/016942411x580036

Cited by 21 publications

(10 citation statements)

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“…Much higher increase of O content and decrease of C and N content observed Jia et al [7], Wu et al [27], and Wang et al [16] in comparison to our research. In addition, Lange et al [12] observed high increase in O content. Contrary to us, Jia et al [28] shown a decrease in O and an increase in C content.…”

Section: Sem/eds Analysismentioning

confidence: 94%

“…Gu et al [11] observed an increase in the unevenness of the surface of para-aramid fibers after treating with a dielectric barrier discharge (DBD) argon plasma (300 W, 60 s). Lange et al [12] found an increase in the porosity of the surface of para-aramid fibers using atmospheric plasma (400 W, 0.1 s) and air and nitrogen. An increase in fibrillation on the surface of para-aramid fabric was observed by Guo et al [25] after air plasma (50 W, 25 min), similarly as Jia et al [8],after treating para-aramid fibers with DBD atmospheric plasma (143.5 W, 18 s).…”

Section: Sem/eds Analysismentioning

confidence: 99%

“…Plasma for a wide range of polymers allows the formation of oxygen functional groups on the surface [6,7,10]. During this kind of treatment, two processes occur simultaneously: etching of the polymer surface [8,[11][12][13] by the reaction of free radial species created from water vapor together with atomic oxygen with carbon atoms and the creation of active polar functional groups [5]. Plasma processing involves modification of only the outermost atomic layers without affecting their mechanical properties [4], increase the surface free energy and its dispersive and especially polar component [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Low-Pressure RF Plasma Treatment on Aramid Yarns Properties

et al. 2020

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The aim of the study was to modify the surface free energy (SFE) of meta- (mAr) and para-aramid (pAr) yarns by their activation in low-pressure air radio frequency (RF) (40 kHz) plasma and assessment of its impact on the properties of the yarns. After 10 and 90 min of activation, the SFE value increased, respectively, by 14% and 37% for mAr, and by 10% and 37% for pAr. The value of the polar component increased, respectively by 22% and 57% for mAr and 20% and 62% for pAr. The value of the dispersion component for mAr and pAr increased respectively by 9% and 25%. The weight loss decreased from 49% to 46% for mAr and 62% to 50% for pAr after 90 min of activation. After 90 min, the specific strength for mAr did not change and for pAr it decreased by 40%. For both yarns, the 10 min activation in plasma is sufficient to prepare their surface for planned nanomodification.

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Section: Sem/eds Analysismentioning

confidence: 94%

Section: Sem/eds Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of Low-Pressure RF Plasma Treatment on Aramid Yarns Properties

et al. 2020

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“…In the literature, some efforts were made to improve the adhesion between polymeric (textile) cords and the rubber matrix as an alternative to the RFL dipping method. − Recently, a new organic/inorganic nanofiller, polyhedral oligomeric silsesquioxane (POSS), is widely used in polymers because it can reinforce and stabilize the polymer materials. The inorganic part of POSSs gives it inertness and hardness.…”

Section: Introductionmentioning

confidence: 99%

Effect of Octavinyl-Polyhedral Oligomeric Silsesquioxane on the Cross-linking, Cure Kinetics, and Adhesion Properties of Natural Rubber/Textile Cord Composites

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et al. 2020

Ind. Eng. Chem. Res.

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The effect of octavinyl-polyhedral oligomeric silsesquioxane (OV-POSS) on the cross-linking, cure kinetics, and adhesion properties of natural rubber (NR)/textile cord (aramid, nylon 6.6, and polyester) composites was investigated in this study. OV-POSS could directly accompany the vulcanization reaction, thanks to its multiple vinyl groups. It was observed that incorporation of OV-POSS into the reference NR compound (REF) delayed the curing time and reduced the cross-linking density. Thermal gravimetric analysis revealed that OV-POSS improved the thermal stability of NR. NR/OV-POSS composites including 1 and 3 phr OV-POSS exhibited similar elongation at break and tensile strength values as compared to the REF compound. Adhesion characteristics of the compounds have been investigated in terms of strip H-adhesion test, and thermodynamic energy of adhesion was determined by contact angle measurements. It was observed that the addition of OV-POSS to the NR compound improved the interfacial adhesion significantly between NR and aramid and NR and nylon 6,6 fibers.

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“…These methods have achieved some successes in improving the adhesion, but most of them lead to a partial loss of the tensile strength of the fibers. The introduction of a sizing agent is reported as an effective way to improve the interfacial adhesion of epoxy/rubber composite materials [ 14 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ]. It is also proposed as an effective approach to improve the compatibility between aramid fiber and other polymers via introducing various functional groups into an aromatic polyamide [ 23 , 24 , 25 , 26 , 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Simple Synthesis of Hydroxyl and Ethylene Functionalized Aromatic Polyamides as Sizing Agents to Improve Adhesion Properties of Aramid Fiber/Vinyl Epoxy Composites

et al. 2017

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Abstract:To improve interfacial adhesion between aramid fibers and vinyl epoxy resins, a series of hydroxyl and ethylene-functional aromatic polyamides ((ClPPTA) m -R ) with different chain segments were successfully synthesized via a one-pot low-temperature polycondensation. The hydroxyl and ethylene-functional aromatic polyamides were characterized by Fourier transform infrared spectroscopy (FT-IR), solid-state 13 C CP/MAS nuclear magnetic resonance spectroscopy ( 13 C CP/MAS NMR), thermal gravimetric analysis (TGA), and wide-angle X-ray diffraction (WXRD). The contact angle of the hydroxyl and ethylene-functional aromatic polyamides films were measured. The hydroxyl and ethylene-functional aromatic polyamides were used as the sizing agents for aramid fiber/vinyl epoxy composites. The surface chemical composition and morphology of the unsized and sized fibers were identified using X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The interfacial adhesion between aramid fibers and vinyl epoxy composites was investigated by the micro-debond tests. The results showed that the interfacial shear strength between the sized aramid fibers and vinyl epoxy composites was greatly improved.

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Adhesion Activation of Twaron Aramid Fibers for Application in Rubber: Plasma Versus Chemical Treatment

Cited by 21 publications

References 0 publications

Influence of Low-Pressure RF Plasma Treatment on Aramid Yarns Properties

Influence of Low-Pressure RF Plasma Treatment on Aramid Yarns Properties

Effect of Octavinyl-Polyhedral Oligomeric Silsesquioxane on the Cross-linking, Cure Kinetics, and Adhesion Properties of Natural Rubber/Textile Cord Composites

Simple Synthesis of Hydroxyl and Ethylene Functionalized Aromatic Polyamides as Sizing Agents to Improve Adhesion Properties of Aramid Fiber/Vinyl Epoxy Composites

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