Effect of micro‐/nano‐scale aramid fibrillated fibers on the tensile properties of styrene‐butadiene latex

Zhong, Aixin; Luo, Jiawen; Wang, Yi; Xu, Guanglong; Hu, Jian

doi:10.1002/pc.25800

Cited by 4 publications

(3 citation statements)

References 16 publications

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“…Aramid pulp (AP) is one of the application forms of the aramid fiber (AF). [1][2][3] As a kind of fibrillated highperformance fiber, AP has been widely used in various fields, including specialty paper, [4,5] seals, [6,7] thermal insulators [8,9] and friction materials [10][11][12] thanks to its excellent tensile performances, outstanding thermal endurance, chemical stability and resistance to abrasion. When used as a reinforcement in composites, AP has great advantage of connecting with the matrix due to the large surface area.…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of the aramid pulp/nitrile butadiene rubber composites with compatibilization of ionic liquids

et al. 2023

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To improve the uniformity and the mechanical/wear performances of the aramid pulp (AP)/nitrile butadiene rubber (NBR) composites, two types of ionic liquids (ILs), that is, 1-carboxymethyl-3-methylimidazolium chloride ([CmMIM]Cl) and 1-allyl-3-vinylimidazolium chloride ([AVIM]Cl) were applied on the AP surface, respectively. The ILs partially disrupted the hydrogen-bonds between the aramid chains to mitigate the fiber entanglement, and connected the AP to the rubber matrix by hydrogen-bond interaction or the crosslinking reaction during the vulcanization. The test results showed that, the IL treatments effectively improved the tensile and tear strengths without obviously affecting the physical characteristics of the composites. The wear properties of the AP/NBR composites also improved due to the enhancements of the tear strength and the connection between the AP and NBR matrix. Compared to the [CmMIM]Cl, the [AVIM]Cl was more efficient to improve the properties attributed to its better compatibilization for the AP/NBR system. For example, the specific wear rate under 20-N load of the composite with 15-phr [AVIM]Cl-AP was 1.1 Â 10 À7 mm 3 N À1 mm À1 , which was approximately 25% and 35% lower than that of the composites reinforced with 15-phr [CmMIM]Cl-AP and untreated AP, respectively.

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Section: Introductionmentioning

confidence: 99%

Preparation and properties of the aramid pulp/nitrile butadiene rubber composites with compatibilization of ionic liquids

et al. 2023

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“…ANF maintains the similar crystal structure and mechanical properties to aramid fibers, while the surface is rich in polar functional groups such as carboxylic acids and amines. [39][40][41] ANF is a promising nano-sized building component in polymer reinforcement, [42,43] electrical insulation, [44][45][46] adsorption and filtration, [47][48][49] and supercapacitor electrodes. [50][51][52] It has been found that coating ANF on the surface of the fiber can improve the interfacial bonding between the fiber and the resin, [53] and ANF shows strong compatibility with the resin, which improves the strength, stiffness and toughness of the composite material.…”

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confidence: 99%

Aramid fiber coated with aramid nanofiber coating to improve its interfacial properties with polycarbonate

Song

Chen

et al. 2023

Polymer Composites

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This study addresses the effect of the coatings prepared from aramid nanofibers (ANFs) on the surface treatment of aramid fiber and reinforced polycarbonate (PC) composite (AF/PC). Aramid fiber's smooth, inert surface bonds poorly with polycarbonate. In this research, the PC‐ANF coating was made by the PC/CH2Cl2 solution, which was modified by aramid nanofibers to improve the interfacial adhesion and compatibility of aramid fiber/PC composites. What's more, the silane (KH570) was added to improve the dispersion and interfacial strength of ANF and PC. The results showed the water contact angle of the aramid fiber modified by PSi‐ANF coating was reduced, indicating the modified fiber has a better wettability. The interfacial bonding strength between PC and aramid fiber increased by 77.2%. The AF/PC composites were prepared by hot‐compression, which the aramid fiber wovens treated with P‐ANF coating, PSi‐ANF coating. The tensile strength, flexural strength, interlaminar shear strength, and impact strength of the AF/PC composite reinforced by AF treated with PSi‐ANF containing 2.0 wt% ANF increased by 62.0%, 81.9%, 49.5%, and 27.6%, respectively. Therefore, this study demonstrates that incorporating ANF interphase may offer an innovative and practical way for enhancing the interface bonding properties of aramid‐reinforced composites.

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“…Due to their inherent strength and high modulus, these fibers, when incorporated into rubber, were seen to have a positive impact on the mechanical, dynamic mechanical as well as rheological properties of the elastomer compounds. [24][25][26] Recently, Kotov and his group developed a simple top-down method to dissociate the macro fibrils of aramids resulting in the formation of stable dispersions of aramid nanofibers (ANF) which were used to fabricate polymer nanocomposites for a myriad of applications. [27][28][29] But, their effect was never reported in any natural rubber compositions.…”

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A comparative study on the effect of different fibrous nanofillers on the properties of natural rubber nanocomposites

et al. 2022

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The specific geometry and distinct properties of one-dimensional nanostructures make them the most ideal candidates as reinforcing elements in composites and the dependence of physical, mechanical, thermal, and wear properties of polymer composites on their dimensionality, nature, and dispersion is interesting. The upsurging demands for high-performance elastomer composites require the application of such nanomaterials as reinforcing agents. Here, we offer a detailed characterization of some of the novel fibrous nanofillers such as silicon carbide nanofibers, aramid nanofibers, carbon nanotubes, and graphite nanofibers. Morphology, crystallinity, surface chemistry, polarity, and thermal stability of these nanofibers were analyzed using techniques such as electron microscopy, X-ray diffraction, infrared and Raman spectroscopy, and thermogravimetric analysis. Natural Rubber nanocomposites were developed using these fibrous nanofillers, and their rheometric, mechanical, dynamic mechanical, and thermal properties were studied. ANF-reinforced compounds gave the highest increment in 300% modulus while the highest tensile strength was obtained by CNT reinforced compounds at 4 phr filler loading. CNT and GNF-reinforced compounds improved the wear resistance simultaneously by 43% and 33% respectively, while SiC and ANF improved it by 10% and 8% respectively. Lower tan delta and better thermal stability were also recorded.Future exploration may involve the use of these nanofibers in conjunction with carbon black or silica to achieve high-performance elastomer compounds for real-life applications.

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Effect of micro‐/nano‐scale aramid fibrillated fibers on the tensile properties of styrene‐butadiene latex

Cited by 4 publications

References 16 publications

Preparation and properties of the aramid pulp/nitrile butadiene rubber composites with compatibilization of ionic liquids

Preparation and properties of the aramid pulp/nitrile butadiene rubber composites with compatibilization of ionic liquids

Aramid fiber coated with aramid nanofiber coating to improve its interfacial properties with polycarbonate

A comparative study on the effect of different fibrous nanofillers on the properties of natural rubber nanocomposites

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