Use Of Carbon Nanotubes Research Articles

Enhancing the performance of anti-blast windows through the use of carbon nanotube reinforced polymer gaskets

Anti-blast windows are critical in ensuring the safety of structures exposed to explosive threats, such as terrorist attacks or accidental explosions. These windows consist of blast-resistant glass and a structural framing system that must be able to withstand the high-pressure shock of an explosion. The present study presents a novel structural framing system for anti-explosion windows that adheres to the standards set forth by the American Institute of Steel Construction (AISC) 360-16 Specifications and the Aluminum Design Manual (ADM) 2020. The system encompasses a distinct combination of aluminum 6063-T6 angles and ASTM A36 steel embed plates that are connected by spaced bolts and augmented by the addition of a carbon nanotube-reinforced polymer CNT/polymer gasket. A numerical investigation utilizing ABAQUS software was performed to evaluate the mechanical behavior of the window assembly under intense blast loads, taking into account the effect of incorporating the CNT/polymer gasket and the impact of the gasket weight fraction on the performance of the structure. The results of the study demonstrate that the use of the CNT/polymer gasket and increasing the wight fraction ratio resulted in improvement of the blast performance of the window frame structure in terms of the significant reduction in stress, deformation and rotation, as well as the increasing of the energy dissipation during the blast event compared to when the gasket was not utilized. These findings offer crucial benchmarks for the proposed structure and offer recommendations for its implementation in industry practice, with the ultimate goal of developing more efficient and effective designs for anti-explosion windows that meet industry standards.

Rational design of electrocatalytic system to selective transform nitrate to nitrogen

Nitrate (NO3−) is one of the most common pollutants in natural bodies of water and as such threatens both human health and the safety of aquatic environment. There are efficient electrochemical techniques to directly remove NO3−, but inexpensive, selective and electrocatalytic strategies to eliminate NO3− by converting it into benign nitrogen (N2) remain challenging. This work studied Cu particles that were formed directly on a Ni foam (Cu–NF) and evaluated their electrocatalytic NO3− reduction performance. The use of carbon nanotubes (CNT) functionalized with titanium suboxides (TiSO) as the anode facilitated the generation of active chlorine species that had a key role in the removal of NH4+. An electrochemical system that integrated a Cu–NF cathode with a TiSO-CNT anode could remove 88.5% of NO3− with a >99% N2 selectivity when operated over 6 h (4.1 × 10−4 h−1) at a potential of −1.2 V vs Ag/AgCl. Because the chloride ions are very common in natural sources of water, this technique offers a sustainable and environmentally friendly approach for the removal of NO3− from contaminated water sources.

Thermal, Morphological and Mechanical Properties of Multifunctional Composites Based on Biodegradable Polymers/Bentonite Clay: A Review.

The extensive use of non-biodegradable plastic products has resulted in significant environmental problems caused by their accumulation in landfills and their proliferation into water bodies. Biodegradable polymers offer a potential solution to mitigate these issues through the utilization of renewable resources which are abundantly available and biodegradable, making them environmentally friendly. However, biodegradable polymers face challenges such as relatively low mechanical strength and thermal resistance, relatively inferior gas barrier properties, low processability, and economic viability. To overcome these limitations, researchers are investigating the incorporation of nanofillers, specifically bentonite clay, into biodegradable polymeric matrices. Bentonite clay is an aluminum phyllosilicate with interesting properties such as a high cation exchange capacity, a large surface area, and environmental compatibility. However, achieving complete dispersion of nanoclays in polymeric matrices remains a challenge due to these materials' hydrophilic and hydrophobic nature. Several methods are employed to prepare polymer-clay nanocomposites, including solution casting, melt extrusion, spraying, inkjet printing, and electrospinning. Biodegradable polymeric nanocomposites are versatile and promising in various industrial applications such as electromagnetic shielding, energy storage, electronics, and flexible electronics. Additionally, combining bentonite clay with other fillers such as graphene can significantly reduce production costs compared to the exclusive use of carbon nanotubes or metallic fillers in the matrix. This work reviews the development of bentonite clay-based composites with biodegradable polymers for multifunctional applications. The composition, structure, preparation methods, and characterization techniques of these nanocomposites are discussed, along with the challenges and future directions in this field.

Zirconia-Based Ceramics Reinforced by Carbon Nanotubes: A Review with Emphasis on Mechanical Properties

This review outlines the state of the art, processing techniques, and mechanical testing methods of zirconia (ZrO2)-based composites reinforced by carbon nanotubes (CNTs). The use of CNTs as a secondary phase in a zirconia matrix is motivated by their outstanding crack self-healing ability, the possibility to tailor the desired nano-structural properties, and their exceptional wear behavior. Therefore, a detailed investigation into CNT features has been provided. The debate of using the different Vickers indentation fracture toughness equations to estimate the resistance of crack propagation was critically reviewed according to crack characteristics. Finally, this review particularly highlights the exceptional role of ZrO2-based composites as a promising material owing to their outstanding tribo-mechanical properties.

Fabrication of vulcanized cross-linked polystyrene grafted on carbon nanotubes for use as an advanced lithium host

We report the fabrication of vulcanized cross-linked polystyrene grafted on carbon nanotubes (CNTs) for use as an advanced three-dimensional Li host. First, polystyrene was grafted from Br-modified CNTs to form brush-like structure by surface-initiated atom-transfer radical polymerization. Polystyrene grafted on carbon nanotubes was then cross-linked using a Friedel-Crafts reaction and finally vulcanized with sulfur. Vulcanized cross-linked polystyrene grafted on carbon nanotubes was used as a support for the Li metal, and its macro-, meso- and microporous structure increased Li ion transport, buffered the volume changes of the Li anode, and provided a high specific surface area to reduce local current density, which assisted rapid and uniform Li plating/stripping. At the same time, the homogenously distributed sulfur in the support reacted with Li to produce a Li2S-containing SEI layer, while the CNTs provided conductive pathways for the rapid transmission of electrons. As a result, a Li|Li symmetric cell using this anode material and a Cu current collector had a stable cycling performance of more than 500 h at a current density of 1 mA cm−2. When LiFePO4 was used as the cathode, a full cell had a high discharge capacity of 101 mAh g−1 with a capacity retention of 77% after 600 cycles at 1 C.

Molecular Dynamics Modeling for the Determination of Elastic Moduli of Polymer-Single-Walled Carbon Nanotube Composites.

The use of carbon nanotubes to improve the mechanical properties of polymers is one of the promising directions in materials science. The addition of single-walled carbon nanotubes (SWCNTs) to a polymer results in significant improvements in its mechanical, electrical, optical, and structural properties. However, the addition of SWCNTs does not always improve the polymer properties. Also, when a certain content of SWCNTs is exceeded, the mechanical properties of the nanocomposite become worse. This article reports the results of computer simulations for predicting the mechanical properties of polymer/single-walled carbon nanotube nanocomposites. The efficiency of reinforcing polymer composites is considered depending on the concentration of carbon nanotubes in the polymer matrix, their size, and structure. The elastic moduli of the nanocomposites are predicted using computer simulations for unit cell tension (0.1%). General trends in the mechanical properties of composites with polypropylene (PP), poly(ethyl methacrylate) (PEMA), polystyrene (PS) matrices, and SWCNTs are shown.

Agglomeration effect on biomechanical performance of CNT-reinforced dental implant using micromechanics-based approach

Dental implants have long played an important role in restoring lost teeth, but there are still concerns about their durability and long-term success. Commercial dental implants have traditionally been made of metallic and ceramic materials like titanium and zirconia; however, each kind of material has restrictions regarding osseointegration and mechanical characteristics that differ between native bone and the implant material, limiting the implant's longevity and reliability. To address these concerns, this research explores the use of carbon nanotubes (CNTs) in restorative dentistry, their excellent properties make them an ideal candidate for promoting bone growth around implanted device and ensuring long-lasting success. The objective of this study was to understand how CNT properties when incorporated into the titanium matrix may be able to better adapt to the oral environment taking into consideration the CNT agglomeration effects when designing reinforced nanocomposite materials for dental implant. A mathematical formulation of the micromechanics model was developed and improved to extend its application for the case of CNT-based composite materials for dental implants. A three dimensional (3D) model of bone structure around the osseointegrated dental implant was established considering different compositions of implant material. Finite Element Analysis (FEA) were conducted to assess the aggregation effect of implant incorporating CNTs into the titanium matrix, considering CNTs with both spherical inclusions (CNT clusters), and randomly dispersive ones (CNTs) in the titanium matrix, on osseointegration and bone remodeling around the dental implant and supporting bone system over a period of 48 months. Firstly, the effects of CNT-Ti implantation on time-dependent performance are evaluated in a computational remodeling framework. Then, Von Mises equivalent stresses are investigated to evaluate the stress distributions and micromotions in jaw bones of loaded implant with different composition of prosthetic material. Three agglomeration patterns are considered, particularly without agglomeration (ζ = ξ), partial and complete agglomeration (ζ < ξ, ξ = 1). Further, the influence of CNTs volume fraction variation is taken into account to predict the mechanical response of the bony system after CNT-reinforced dental implantation. It can be inferred that the agglomeration of CNTs reduces the elastic stiffness of the matrix. This is due to the fact that when CNTs are agglomerated, the inter-tube contacts are reduced and the effective stiffness of the matrix is decreased.

The role of carbon nanotubes in the reactions of heterogeneous catalysis

In this review the most significant results reported in the literature concerning the use of carbon nanotubes in heterogeneous catalytic reactions are reported. Carbon nanotubes are very versatile materials and find applications in many sectors. They present, thermal and chemical stability, large surface and high adsorbent and regenerative ability such as to make them excellent materials to be used in industrial catalytic processes.

Regulating the temperature‐sensing behavior of poly(lactic acid) by incorporating multiwalled carbon nanotubes and graphene nanoplatelets

AbstractIn this work, the synergistic effect of using multiwalled carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) to regulate the temperature response of electrical conductivity (σ) for poly(lactic acid) (PLA) composites were reported. The addition of CNTs into PLA/GNPs composites markedly enhanced their crystallization capacity and σ, resulting in a reduction of percolation threshold from 2.87 (for PLA/GNPs) to 0.39 wt% (for PLA/GNPs/CNTs), which is attributed to the formation of a three‐dimensional conductive network within PLA consisting of CNTs and GNPs. Furthermore, elevating the heat treatment temperature from 80 to 140°C resulted in a reduced response time of PLA/CNTs/GNPs composites from 57 to 43 s at the Tend of 140°C. Notably, the combined use of CNTs and GNPs considerably amplified the value and stability of max . For example, the maximum increased from 120% for PLACNT0.6 to 240% for PLA/(CNT1/GNP1)0.6. The suppression of volume expansion of PLA led to a negative temperature coefficient (NTC) effect at relatively low temperatures, resulting in a reduction of NTC transition temperature from about 160 to 110°C. Additionally, the PLA/(CNT1/GNP1)0.6 exhibited a swift and sensitive response to temperature fluctuations in various heating scenarios, which demonstrated a potential for use as a thermosensitive material with fast response and temperature‐sensing ability.Highlights PLA‐based composites with NTC effect was prepared by adding CNTs and GNPs. The transition temperature from PTC to NTC effect decreased by adding hybrid fillers. The addition of hybrid CNTs and GNPs favored the formation of conductive network. The mechanism for NTC transition was explained.

Some aspects of the use of carbon nanotubes for enhanced oil recovery

In the presented work, the effect of modified carbon nanotubes on various reagents used to increase the oil recovery factor (ORF) was studied. It was found that nanotubes contribute to the stabilization of the foam in the studied reagents, which had a positive effect on the increase in the recovery factor. Keywords: nanotechnologies; enhanced oil displacement, carbon nanotubes.

Effect of CNT over structural properties of SAPO-34 in MTO process: Experimental and molecular simulation studies

The hierarchical silicoaluminophosphate (SAPO-34) catalyst was synthesized using the mixtures of diethylamine (D) and butylamine (B) as a structure-directing agent (SDA), and carbon nanotube (CNT) as a secondary template in the hydrothermal method. The catalysts were characterized by Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), N2 physisorption, and temperature-programmed desorption of ammonia (NH3-TPD) techniques and evaluated for the catalytic activity in the Methanol to Olefins (MTO) process. The results showed that the use of CNT as the secondary template improved the hierarchical structure of SAPO-34 due to increasing the external surface area and mesoporosity and decreasing the particle size and as a result, made better the performance of the prepared SAPO-34 zeolite in the MTO process. Among all the prepared samples, the CNT-B-D catalyst synthesized by mixing three templates displayed the highest ethylene and propylene selectivity of 49% and 34%, respectively. Also, using CNT in the synthesis of samples increased the catalytic stability. In addition, pure, binary, and ternary adsorption isotherms and diffusivities of the main products and reactants over the SAPO-34 were investigated by theoretical measurements, because sorption and diffusion affect the catalyst stability and C2–C3 selectivity in the MTO reaction. The higher diffusion rate of ethylene leads to following the aromatic-based cycle in the MTO process.

Contribution of the Fenton reaction to the degradation of carbon nanotubes by enzymes

The widespread use of carbon nanotubes (CNTs) has raised concerns about the human health and ecological effects of CNTs released into the environment. Bacteria play an important role in bioremediation and waste treatment, and their enzymes are mostly responsible for the degradation of contaminants. However, there are still only a few reports about the bacterial degradation of CNTs, and evidence showing the involvement of bacterial enzymes in CNT degradation with their mechanisms has never been reported. The purpose of this study is to clarify whether CNTs can be degraded by bacterial enzymes. In this study, the degradation of oxidized (carboxylated) single-walled CNTs (O-SWCNTs) by mt2DyP, a dye-decolorizing peroxidase of Pseudomonas putida mt-2, a common soil bacterium, was investigated. After incubation of O-SWCNTs with recombinant mt2DyP and its substrate H2O2 for 30 d, the optical absorbance and Raman spectra revealed the degradation of O-SWCNTs. However, inactivation of the enzyme was observed within 60 min of the start of incubation, suggesting that the degradation of O-SWCNTs occurred nonenzymatically. The inactivation of mt2DyP was accompanied by the release of iron, the active center metal, and degradation of O-SWCNTs was significantly inhibited in the presence of diethylenetriamine pentaacetic acid, a chelating agent, indicating that O-SWCNTs were degraded by the Fenton reaction with iron released from mt2DyP and H2O2. The same phenomenon was observed with P450, which is also a heme enzyme. Furthermore, we investigated the contribution of the Fenton reaction to the O-SWCNT degradation by horseradish peroxidase (HRP), which was reported to enzymatically and rapidly degrade O-SWCNTs. Our results revealed that the degradation of O-SWCNTs in the presence of HRP is also mainly due to the Fenton reaction, with negligible enzymatic degradation. This contradicts the report showing enzymatic degradation of O-SWCNTs by HRP but supports the subsequent report quantitatively showing very slow transformation of O-SWCNTs by HRP. The current results emphasize that the Fenton reaction, which has received little attention in CNT degradation by heme enzymes, must be taken into consideration and will contribute to the development of a simple disposal method for CNTs, utilizing the Fenton reaction with bacteria/bacterial enzymes and H2O2.

To Improve the Strength of Concrete by Using Carbon Nanotubes (CNTs)

Abstract: The use of carbon nanotubes (CNTs) in concrete has been gaining attention due to their unique properties, such as high strength, flexibility, and electrical conductivity. This study focuses on investigating the effect of adding CNTs to concrete mixtures on the strength of the resulting material. The concrete specimens were prepared with different percentages of CNTs, and their mechanical properties were measured and compared to those of control specimens without CNTs. The results showed that the addition of CNTs significantly improved the compressive and flexural strength of the concrete. The findings suggest that the incorporation of CNTs in concrete mixtures could be an effective way to enhance the mechanical properties of concrete and improve its performance in construction applications. Compared to the plain cement sample at 28 days. The highest increase in strength at 28 days for the 0.0045 wt.% MWCNTs and the 0.0030 wt.% MWCNTs was 43.4% and 37.79% respectively. It is concluded that nano composites with low concentration of long MWCNTs give comparable mechanical performance to the nano composites with higher concentration of short MWCNTs. Many of the MWCNIs were stretching across the micro-cracks showing CNT's breakage and pull-out. In addition to the compression test we had calculated the split tensile strength by adding the multi-walled carbon nano tubes by increasing the proportion as per the percentage. For 0.0015% MWCNT's, 0.0030% and 0.0045% the percentage of strength increased by 25.6%, 44.63% and 51.21% respectively.

Encapsulation of Carbon Nanotubes by Styrene and Butyl Acrylate Particles via Suspension Polymerization for Polymerized Toner Applications.

Electrophotographic printing and copying processes primarily use toner, which is a mixture of colorant, polymer, and additives. Toner can be made using traditional mechanical milling techniques or more contemporary chemical polymerization techniques. Suspension polymerization provides spherical particles with less stabilizer adsorption, homogeneous monomers, higher purity, and easier control of the reaction temperature. In contrast to these advantages, however, the particle size resulting from suspension polymerization is too large for toner. To overcome this disadvantage, devices such as high-speed stirrers and homogenizers can be used to reduce the size of the droplets. This research investigated the use of carbon nanotubes (CNTs) instead of carbon black as the pigment in toner development. We succeeded in achieving a good dispersion of four different types of CNT, specifically modified with NH2 and Boron or unmodified with long or short chains in water rather than chloroform, using sodium n-dodecyl sulfate as a stabilizer. We then performed polymerization of the monomers styrene and butyl acrylate in the presence of the different CNT types and found that the best monomer conversion and largest particles (in the micron range) occurred with CNTs modified with boron. The insertion of a charge control agent into the polymerized particles was achieved. Monomer conversion of over 90% was realized with all concentrations of MEP-51, whereas conversion was under 70% with all concentrations of MEC-88. Furthermore, analysis with dynamic light scattering and scanning electron microscopy (SEM) indicated that all polymerized particles were in the micron size range, suggesting that our newly developed toner particles were less harmful and environmentally friendly products than those typically and commercially available. The SEM micrographs clearly showed good dispersion and attachment of the CNTs on the polymerized particles (no CNT aggregation was found), which has never been published before.

Gold coated vertically aligned carbon nanotubes as electrode for electrochemical capacitors

In this work, gold (Au) films were deposited onto vertically aligned carbon nanotubes (CNTs) by Dc magnetron sputtering method for use as super-capacitor electrodes. By so doing, we synthesize a porous Au deposit anchored on the CNTs with a high apparent surface area. The structure and microstructure studies revealed that the Au@CNTs have a porous nanostructure morphology. The porous Au/CNTs electrodes exhibit an a good areal capacitance compared to state of art Au based electrode (25.6 mF cm-2 at 5 mV.s-1) and excellent cycling stability (90% retention after 10.000 cycles) in 0.5 M H2SO4 aqueous solution. These results demonstrate the beneficial use of CNTs to fabricate a porous Au deposit with improved electrochemical energy storage. In addition, these porous structures can also be used as templates for another type of materials for electrochemical energy storage.

Investigation of coated 316L steel surface employing carbon nanotubes mixed-electrical discharge machining for biomedical applications

This research focuses on the influence of carbon nanotubes on the modified 316L steel surface properties for potential biomedical applications and explores relationships between the process variables and the modified surface properties. Following Taguchi's L9 (3^4) design, carbon nanotube is added in the electro-discharge machining oil to synthesize a biocompatible and hard coating when the machining of 316L steel with a titanium electrode. A few characterization tools such as scanning electron microscope, goniometer, Vickers's hardness, x-ray diffraction (powder X-ray diffraction), atomic force microscope, energy dispersive X-ray, and MTT ((3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, a tetrazole) assay were adopted for performing the modified surface characterizations. A thin coating of 14.65 µm attributing to a small contact angle of 58.97° is found. The lowest surface roughness of 1.63 µm in micron scale and 5.641 nm in nano scale is obtained at a low both current and carbon nanotube amount applications. The morphological results confirm a crack-free, micro and nano porous surface. Compositional analysis ensures carbides, intermetallic and oxides formation on the coated surface. Microhardness of 316L steel is improved by about 86% (269.8 HV). Most importantly, approximately 70% cells are alive, which witnesses the use of carbon nanotube in biocompatible coating formation.

In situ reinforced poly(ether ether ketone) nanocomposites by covalently modified multiwalled carbon nanotubes via surface‐grafting polymerization

AbstractCovalent modification of multiwalled carbon nanotubes (MWCNTs) is an efficient way to improve the interfacial interaction and compatibility between MWCNTs and the matrix. In this article, MWNCTs were covalently modified by 4,4′‐difluorobenzophenone (DB) to allow temperature‐tolerant functional groups on the walls. These surface‐functionalized MWCNTs (MWCNTs‐DB) were then attached to poly(ether ether ketone) (PEEK) resins by in situ grafting polymerization, to prepare high‐strength PEEK nanocomposites. The addition of 1 wt% MWCNTs‐DB improved the tensile and flexural strength of the PEEK nanocomposite by 28% and 22%, respectively, compared with pristine PEEK. In particular, the optimal break at strain of the PEEK nanocomposites reaches 39%. The glass transition temperature of the PEEK nanocomposites increased from 148 to 153°C, indicating strong interfacial interactions between MWNCTs and PEEK. Furthermore, scanning electron microscopy images confirmed the amelioration of MWNCTs dispersion in PEEK resins achieved by in situ grafting polymerization. Our results demonstrate the potential of surface‐functionalized carbon nanotubes for use in high‐temperature applications and offer innovative protocols for designing and preparing high‐performance nanocomposites with enhanced mechanical properties, which could have applications in various fields such as aerospace, automotive, and biomedical engineering.

Fabrication of CuCo2S4 on composite interface materials made of polypyrrole and nitrogen-doped carbon nanotubes for use in supercapacitors

Due to their low cost, high conductivity, and synergistic impact, the ternary CuCo2S4 sulfides were thoroughly examined in this article as electrode materials for electrochemical properties. The hydrothermal reaction process for energy storage application was aided by the nanostructured copper cobalt sulfides (CuCo2S4) secured on multiwalled carbon nanotubes/polypyrrole composite via ultrasonication. By utilizing a 6 M KOH electrolyte, the produced composite electrode displays increased specific capacitances and cyclic stability. The structural, morphological, and surface properties of the composite materials were analyzed using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Energy-dispersive X-ray spectroscopy (EDS), X-ray photo electron spectroscopy (XPS), Field emission scanning electron microscopy (FE-SEM), the Brunauer-Emmett-Teller (BET) theory, and the Barrett, Joyner, For better supercapacitor use, the morphological characteristics of nanoscale CuCo2S4 on NMWCNT/PPy surface were confirmed. The synthesized CuCo2S4@NMWCNT and CuCo2S4@NMWCNT/PPy composite electrodes shown outstanding cyclic stability up to 5000 cycles and specific capacitances of 259 F/g, respectively, at 1 A/g. The synthesized ternary composite electrode's electrochemical impedance spectroscopy (EIS) characteristics reveal the lowest Rs (0.53 and 0.63) and charge transfer resistance (Rct) as 65.6 Ω, as well as reasonably outstanding retention of 90.5 % after 5000 cycles. Through the use of a three-electrode configuration, the increased surface and morphological features of the CuCo2S4 on NMWCNT/PPy composite boosted the electrochemical properties of the ternary composite electrode.

Preparation of cobalt-ruthenium nanocatalysts supported on nitrogen-doped graphene aerogel and carbon nanotubes in Fischer-Tropsch synthesis

In this study, cobalt-ruthenium nanocatalysts supported on nitrogen-doped graphene aerogel (NGA) and carbon nanotubes (CNT) were synthesized using the wet impregnation method for Fischer-Tropsch process with a cobalt to ruthenium ratio of 1:50. The synthesized catalysts underwent various characterizations such as FTIR, ICP, BET, XRD, EDX, TPR and TEM. The performance of the synthesized catalysts was compared to that of a cobalt-ruthenium nanostructured catalyst supported on NGA and CNTs. The catalysts were evaluated in a fixed-bed reactor at 25 bar, with a gas ratio H2/CO: 2 and Gas Hourly Space Velocity (GHSV) 10,000 mlg-1h-1, at temperatures of 260 °C and 280 °C. The use of NGA as a cobalt catalyst support led to a 70.5% conversion of carbon monoxide and higher methane selectivity. Conversely, the use of CNTs led to 63.7% conversion of carbon monoxide and higher selectivity towards C5+ production.

Molecular dynamics simulation of mechanical properties of carbon nanotube reinforced cellulose.

Cellulose, hemicellulose, and lignin are the major chemical components in wood paper. Various types of wet and dry strength additives are used to enhance the optical and mechanical properties of recycled paper. One of the possible materials is the carbon nanotube. In order to explore the probability of the use of carbon nanotubes as reinforcing materials and to understand how carbon nanotubes affect the mechanical properties of paper, a single-walled carbon nanotube is inserted into a [Formula: see text] cellulose nanocrystal, and its mechanical properties are studied by using energy minimization and molecular dynamics (MD) simulations. During simulations, the crystals are stretched in the axial direction at a constant speed, and stress and strain are computed and recorded at the atomic level. Our results indicate that carbon nanotube can significantly enhance the mechanical properties of paper.