Aramid Nanofiber/XNBR Nanocomposite with High Mechanical, Thermal, and Electrical Performance

Wang, Jingyi; Zhang, Xumin; Wen, Yangyang; Chen, Yang; Fu, Quansheng; Wang, Jing

doi:10.3390/nano13020335

Cited by 4 publications

(4 citation statements)

References 25 publications

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“…They have been widely explored as potential materials catering to the increasing demands for protective clothing, industrial vehicles, and construction applications. − As previously reported, para-AMFs are able to be exfoliated into poly( p -phenylene terephthalamide) (PPTA) nanofibers (para-ANFs) experiencing deprotonation with the assistance of dimethyl sulfoxide/potassium hydroxide (DMSO/KOH) solution. For meta-AMFs, the deprotonation environment is varied to be the dimethylacetamide/lithium chloride (DMAC/LiCl) system for the disconnection of the hydrogen bond between the poly( m -phenylene isophthalamide) (PMIA) molecular chains. , The ANFs inherit the majority of superior properties from AMFs including high-temperature resistance, dielectric insulation, and mechanical strength. − With the reduced scale of ANFs being a few tens of nanometers, various functional architectures are feasible including 1D additives, 2D self-assembled films, as well as 3D network structures. − …”

Section: Introductionmentioning

confidence: 99%

Self-Reinforced Doping Strategy in the Multiscale PMIA Paper for High Mechanical Properties and Insulating Performance

Sun,

Lv,

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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The poly(m-phenylene isophthalamide) (PMIA) paper has attracted extensive interests due to its ultrahigh mechanical properties as an ideal protective material for anti-impact damage applications. In the pursuit of additional properties, composites based on the PMIA matrix and various fillers are widely explored. However, additional improvements are frequently obtained at the expense of mechanical properties because of the serious interfacial compatibility brought by different components. In this study, a self-reinforced doping strategy is proposed by combining microscale PMIA fibers as the fillers and nanoscale PMIA fibers as the matrix to form a micronano paper. Without the limitation of the interfacial compatibility issues, the nanofibers are tightly aligned and adhered to the microfibers, enabling the in situ generation of hydrogen bonds at the interfaces. A compact interfacial structure is thus constructed with reduced porosity on the surface. It indicates that the microfibers have a positive impact on the improvement of mechanical properties. In our optimized sample with 5 wt % microfibers, the elastic modulus, tensile strength, and elongation are 1530 MPa, 24.8 MPa, and 5.3%, respectively, which are 142, 49.4, and 65% higher than those of the pristine nano-PMIA paper. In addition, the insulating performance is also improved, facilitating its further application extended to broad fields.

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Section: Introductionmentioning

confidence: 99%

Self-Reinforced Doping Strategy in the Multiscale PMIA Paper for High Mechanical Properties and Insulating Performance

Sun,

Lv,

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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“…As a result, XNBR is more suitable for use in harsh environments than NBR. 23 XNBR has been widely used for seals, tubes, sealing gaskets, gloves, etc. 16 In this study, XNBR/CG composites were prepared with mechanical and latex blending methods, respectively.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of the mechanical and tribological properties of carboxylated acrylonitrile butadiene rubber filled with cryptocrystalline graphite by different preparation methods

Tong,

Zhou,

Bai

et al. 2023

J of Applied Polymer Sci

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As a cost‐effective and environmentally friendly natural mineral, cryptocrystalline graphite (CG) is applied in rubber materials and its performance has been evaluated. In this work, the filler dispersion and mechanical and tribological properties of carboxylated acrylonitrile butadiene rubber (XNBR)/CG composites by different preparation methods were studied. XNBR/CG composites prepared by latex blending (XNBR/CG‐L) exhibited better mechanical and tribological performance, higher toughness, and lower heat build‐up than those prepared by mechanical blending (XNBR/CG‐M). These differences were ascribed to the filler dispersion degree, filler amount and dispersed size, and also filler–rubber interfacial interaction. Adding CG was conducive to improving the stability of the friction coefficient and reduced the wear rate via the formation of graphite lubricant and transfer films. The tribological performance of XNBR/CG‐L was superior to that of XNBR/CG‐M because of the improved tensile strength, tear resistance, and toughness as well as lower temperature rise. Scanning electron microscopy (SEM) and optical microscope observation showed a smoother worn surface, less and smaller wear debris of XNBR/CG‐L, and a more uniform transfer film on the steel counterpart surface. The relevant results provided new insight into the performance and structural design of CG/rubber composites.

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“…ANFs have been extensively studied in the fields of battery separators, adsorption filtration, polymer reinforcement, thermal insulation, and flexible electronic devices. ANFs have been extensively studied for their potential to improve the mechanical properties of various polymers, including polyurethane [2][3][4], rubber [5][6][7][8], epoxy resin [9][10][11], polyvinyl alcohol [12], and polypyrrole [13]. For example, Wang et al [6] found that adding 5 wt% of ANFs increased the tensile strength and tear strength of carboxylated acrylonitrile butadiene rubber by 182% and 101%, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…ANFs have been extensively studied for their potential to improve the mechanical properties of various polymers, including polyurethane [2][3][4], rubber [5][6][7][8], epoxy resin [9][10][11], polyvinyl alcohol [12], and polypyrrole [13]. For example, Wang et al [6] found that adding 5 wt% of ANFs increased the tensile strength and tear strength of carboxylated acrylonitrile butadiene rubber by 182% and 101%, respectively. Guo et al [13] combined the outstanding mechanical properties of ANFs with the conductivity of polypyrrole to prepare ANF/polypyrrole composite films with excellent electromagnetic shielding, wearable sensing, resistive heating, and photothermal conversion performance.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Mechanical Properties of UV-Curable Epoxy Acrylate/Modified Aramid Nanofiber Nanocomposite Films

Wang,

Sun,

Yin

et al. 2023

Nanomaterials

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In order to enhance the mechanical properties of UV-curable epoxy acrylate (EA)-based coatings, 3-(trimethoxysilyl)propyl methacrylate modified aramid nanofibers (T-ANFs) were synthesized and used as nanofillers to prepare EA/T-ANF nanocomposite films. The morphology of T-ANFs was characterized by transmission electron microscopy. The chemical structure of T-ANFs was analyzed via infrared spectroscopy, confirming successful grafting of methyl methacryloyloxy groups onto the surface of aramid nanofibers (ANFs). Real-time infrared spectroscopy was employed to investigate the influence of ANFs and T-ANFs on the photopolymerization kinetics of the EA film. The results revealed that the addition of ANFs and T-ANFs led to a decrease in the photopolymerization rate during the initial stage but had little impact on the final double bond conversion, with all samples exhibiting a conversion rate of over 83%. The incorporation of ANFs improved the tensile strength of the films while significantly reducing their Young’s modulus. In contrast, the addition of T-ANFs led to a substantial increase in both tensile stress and Young’s modulus of the films. For instance, the tensile strength and Young’s modulus of the 0.1 wt% of T-ANF film increased by 52.7% and 41.6%, respectively, compared to the pure EA film. To further study the dispersion morphology and reinforcement mechanism, the cross-sectional morphology of the films was characterized by scanning electron microscopy.

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Aramid Nanofiber/XNBR Nanocomposite with High Mechanical, Thermal, and Electrical Performance

Cited by 4 publications

References 25 publications

Self-Reinforced Doping Strategy in the Multiscale PMIA Paper for High Mechanical Properties and Insulating Performance

Self-Reinforced Doping Strategy in the Multiscale PMIA Paper for High Mechanical Properties and Insulating Performance

Enhancement of the mechanical and tribological properties of carboxylated acrylonitrile butadiene rubber filled with cryptocrystalline graphite by different preparation methods

Preparation and Mechanical Properties of UV-Curable Epoxy Acrylate/Modified Aramid Nanofiber Nanocomposite Films

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