CNT coating and anchoring beads enhance interfacial adhesion in fiber composites

Ghosh, Sabyasachi; Greenfeld, Israel; Wagner, H. Daniel

doi:10.1016/j.compositesa.2023.107427

Cited by 18 publications

(5 citation statements)

References 60 publications

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“…In fiber‐reinforced composites, thermal properties are the key factors that affect the application range. [ 43 ] Therefore, we measured representative weight‐loss curves of PCL and BMCs with different macrofibers directions using TGA. The initial weight loss from 100 to 300 °C is ascribed to water molecules that are trapped on the bamboo macrofibers and PCL surface (Figure S8, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Aligned Bamboo Fiber‐Induced Crystallinity Mitigation of Lightweight Polymer Composite Enables Ultrahigh Strength and Unprecedented Toughness

Hou,

Wu,

et al. 2024

Adv Funct Materials

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Lightweight polymer composites promise incredible applications in aerospace, seaprobes, and medical apparatus. However, their performance is generally limited by a trade‐off between mechanical strength and toughness. Herein, a crystallinity mitigating strategy driven by highly aligned bamboo macrofibers embedded in a polycaprolactone polyol (PCL) matrix for producing ultrastrong and tough lightweight polymer composites is proposed. The embedded bamboo macrofibers have oxygen‐containing functional groups on the fiber surface, that can interact with functional groups (ester and hydroxyl groups) in the molecular chains of the PCL in the form of hydrogen bonds, thus preventing the aggregation of molecular chains and the crystallization of PCL, which ultimately leads to unprecedented toughness. Meanwhile, the bamboo macrofibres with intrinsically aligned microstructure, can enable effective stress transfer and dissipation, providing remarkable ultrahigh strength. As a result, the obtained lightweight polymer composite achieves ultrahigh mechanical strength (31.5 MPa) and superior toughness (21.7 MJ m−3) at an unprecedented low density (1.07 g cm−3), representing the state‐of‐the‐art in reported lightweight polymers. Such lightweight polymer composite has the potential to greatly expedite the practical realization of artificial medical materials, including orthopedic instruments and joint prostheses.

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Section: Resultsmentioning

confidence: 99%

Aligned Bamboo Fiber‐Induced Crystallinity Mitigation of Lightweight Polymer Composite Enables Ultrahigh Strength and Unprecedented Toughness

Hou,

Wu,

et al. 2024

Adv Funct Materials

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“…By combing the excellent strength and modulus CFRP composites with ductile SF, a seemingly ideal solution emerges to address the brittleness inherent in CFRP composites and the stiffness deficiency prevalent in SFreinforced polymer-based (SFRP) composites. [10][11][12] This hybridization strategy presents a promising avenue toward enhancing the mechanical performance of composites, thereby fostering innovation across various engineering applications.…”

Section: Introductionmentioning

confidence: 99%

Effects of surface modification on mechanical properties and electromagnetic interference shielding properties of carbon fiber/silk fiber hybrid composites

Song,

He,

et al. 2024

Polymer Composites

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In this paper, a hybrid approach was employed by integrating a high‐modulus, high‐tensile‐strength carbon fiber fabric (CFF) with a low‐density, high‐toughness silk nonwoven fabric (SNWF) to fabricate CFF‐SNWF reinforced epoxy (CFF‐SNWF/EP) hybrid composites. Through the surface freeze‐induced self‐assembly process, the multiscale hybrid modified layers were successfully constructed on the surfaces of both CFF and SNWF. This novel approach effectively enhanced the interfacial strength of the hybrid fibers (HFs). Comparing the performance of the modified composites with unmodified CFF reinforced epoxy (CFF/EP), significant improvements in both tensile strength and interlaminar shear strength were observed. Specifically, the tensile strength and interlaminar shear strength of the modified composites reached 626.7 and 39.16 MPa, a rise scope of 17.1% and 14.8%, respectively. In addition, the hybrid fibers reinforced polymers (HFRPs) exhibited a superior electromagnetic interference (EMI) shielding capabilities. For insistence, the modified CFF/EP with a thickness of 2.0 mm showed an impressive EMI shielding effectiveness value of 50 dB. These findings underscore the promising application potential of CFF‐SNWF/EP hybrid composites, particularly in the field of consumer electronics.Highlights The surface of hybrid fiber was modified by PDA‐GO‐OCNTs‐WPU. Multi‐scale structure contributes a lot in composite performance. Hybrid effect before and after interfacial modification is performed. The hybrid interface modification and hybrid structure were analyzed.

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“…Since the appearance of plastics, their production has grown exponentially in recent decades, and due to their versatility, they are used in different fields, such as packaging, building, or electronic industries, among others [ 1 ]. The use of microbeads or nanobeads based on plastic polymers (e.g., Bisphenol-A diglycidyl ether, polyetheramine, and Polyvinyl alcohol) to functionalize and decorate CNTs has been reported to improve their shielding against electromagnetic interference, and the electrical and mechanical properties of elastic, functional composites can also be improved by interlacing the beaded and coated fibers into a smart tissue [ 2 , 3 ]. The transformation of plastics into microplastics (MPs) and then into nanoplastics (NPs) through fragmentation makes the presence of micro- and nanoplastics (MNPs) in both water sources and our planet’s agroecosystems a worldwide concern [ 4 , 5 , 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Machine Learning to Predict the Adsorption Capacity of Microplastics

et al. 2023

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Nowadays, there is an extensive production and use of plastic materials for different industrial activities. These plastics, either from their primary production sources or through their own degradation processes, can contaminate ecosystems with micro- and nanoplastics. Once in the aquatic environment, these microplastics can be the basis for the adsorption of chemical pollutants, favoring that these chemical pollutants disperse more quickly in the environment and can affect living beings. Due to the lack of information on adsorption, three machine learning models (random forest, support vector machine, and artificial neural network) were developed to predict different microplastic/water partition coefficients (log Kd) using two different approximations (based on the number of input variables). The best-selected machine learning models present, in general, correlation coefficients above 0.92 in the query phase, which indicates that these types of models could be used for the rapid estimation of the absorption of organic contaminants on microplastics.

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CNT coating and anchoring beads enhance interfacial adhesion in fiber composites

Cited by 18 publications

References 60 publications

Aligned Bamboo Fiber‐Induced Crystallinity Mitigation of Lightweight Polymer Composite Enables Ultrahigh Strength and Unprecedented Toughness

Aligned Bamboo Fiber‐Induced Crystallinity Mitigation of Lightweight Polymer Composite Enables Ultrahigh Strength and Unprecedented Toughness

Effects of surface modification on mechanical properties and electromagnetic interference shielding properties of carbon fiber/silk fiber hybrid composites

Machine Learning to Predict the Adsorption Capacity of Microplastics

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