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Singh S, Bhardwaj S, Choudhary N, Patgiri R, Teramoto Y, Maji PK. Stimuli-Responsive Chiral Cellulose Nanocrystals Based Self-Assemblies for Security Measures to Prevent Counterfeiting: A Review. ACS APPLIED MATERIALS & INTERFACES 2024; 16:41743-41765. [PMID: 39102587 DOI: 10.1021/acsami.4c08290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
The proliferation of misleading information and counterfeit products in conjunction with technical progress presents substantial worldwide issues. To address the issue of counterfeiting, many tactics, such as the use of luminous anticounterfeiting systems, have been investigated. Nevertheless, traditional fluorescent compounds have a restricted effectiveness. Cellulose nanocrystals (CNCs), known for their renewable nature and outstanding qualities, present an excellent opportunity to develop intelligent, optically active materials formed due to their self-assembly behavior and stimuli response. CNCs and their derivatives-based self-assemblies allow for the creation of adaptable luminous materials that may be used to prevent counterfeiting. These materials integrate the photophysical characteristics of optically active components due to their stimuli-responsive behavior, enabling their use in fibers, labels, films, hydrogels, and inks. Despite substantial attention, existing materials frequently fall short of practical criteria due to limited knowledge and poor performance comparisons. This review aims to provide information on the latest developments in anticounterfeit materials based on stimuli-responsive CNCs and derivatives. It also includes the scope of artificial intelligence (AI) in the near future. It will emphasize the potential uses of these materials and encourage future investigation in this rapidly growing area of study.
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Affiliation(s)
- Shiva Singh
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 240071, India
| | - Shakshi Bhardwaj
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 240071, India
| | - Nitesh Choudhary
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 240071, India
| | - Rohan Patgiri
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 240071, India
| | - Yoshikuni Teramoto
- Division of Forest & Biomaterials Science, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 6068502, Japan
| | - Pradip K Maji
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 240071, India
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2
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Meda R, Jain S, Singh S, Ramakanth D, Bhardwaj S, Teramoto Y, Mondal P, Maji PK. Investigating the Reactive Reinforcement Ability of Maleic Anhydride-Modified Cellulose Nanocrystals via In-Situ Emulsion Polymerization. ACS OMEGA 2024; 9:33386-33396. [PMID: 39130565 PMCID: PMC11307290 DOI: 10.1021/acsomega.3c07849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 02/05/2024] [Accepted: 05/27/2024] [Indexed: 08/13/2024]
Abstract
CNC-based nanocomposites have gained substantial interest because of their enhanced thermomechanical properties for high-end engineering applications. The chemical modification of CNCs expands their applicability, making them suitable for use in hydrophobic polymer matrices. The current study investigates the reactive reinforcing ability of maleic anhydride-modified cellulose nanocrystals during the in situ polymerization of a vinyl monomer, i.e., styrene. Highly crystalline nanocellulose (CNCBG) was isolated from Lagenaria siceraria (Bottle gourd) peels via Hydrochloric acid, which was further modified to synthesize maleic anhydride-modified cellulose nanocrystals (MACNCBG) and characterized employing various techniques. MACNCBG exhibited higher suspension stability than CNCBG due to the introduction of carboxyl groups. Furthermore, polystyrene-based nanocomposites of 3 and 5 wt % filler loading were prepared, respectively. While PSMACNCBG (5 wt %) displayed a premature failure, PSMACNCBG (3 wt %) demonstrated enhanced mechanical properties compared to PSCNCBG (3 wt %) and PS. At the same filler loading, MACNCBG demonstrated a more remarkable reinforcing ability than CNCBG, owing to its reactive tendency. The appearance of a new peak between 3000-2800 cm-1 corresponds to the C-H stretching of the formed C-C bond (between C=C of MACNCBG and benzal carbon of PS) in the FTIR spectra, confirming the reactive nature of MACNCBG.
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Affiliation(s)
- Radheesh
Sharma Meda
- Department
of Polymer and Process Engineering, Indian
Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 240071, India
- Department
of Chemical Engineering, Indian Institute
of Technology Roorkee, Roorkee 247667, India
| | - Somya Jain
- Department
of Polymer and Process Engineering, Indian
Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 240071, India
- Department
of Chemical Engineering, Indian Institute
of Technology Roorkee, Roorkee 247667, India
| | - Shiva Singh
- Department
of Polymer and Process Engineering, Indian
Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 240071, India
| | - Dakuri Ramakanth
- Department
of Polymer and Process Engineering, Indian
Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 240071, India
| | - Shakshi Bhardwaj
- Department
of Polymer and Process Engineering, Indian
Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 240071, India
| | - Yoshikuni Teramoto
- Division
of Forest & Biomaterials Science, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 6068502, Japan
| | - Prasenjit Mondal
- Department
of Chemical Engineering, Indian Institute
of Technology Roorkee, Roorkee 247667, India
| | - Pradip K. Maji
- Department
of Polymer and Process Engineering, Indian
Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 240071, India
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Wang Q, Yang Z, Feng X, Liu X. Modification of nanocellulose via atom transfer radical polymerization and its reinforcing effect in waterborne UV-curable resin. Int J Biol Macromol 2023; 253:126743. [PMID: 37689290 DOI: 10.1016/j.ijbiomac.2023.126743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 08/16/2023] [Accepted: 08/26/2023] [Indexed: 09/11/2023]
Abstract
Cellulose nanocrystals (CNCs) are green reinforcing materials, and their potential has been evaluated in the preparation of waterborne UV-curable resin composites with high-performance. Herein, we present a novel and scalable approach for preparing surface-modified CNCs with acrylic-based polymers to strengthen the compatibility and interaction between CNCs and UV-curable resins. Using tert-butyl acrylate as the monomer, the nanocellulose grafted copolymer CNC-g-PtBA was successfully synthesized via atom transfer radical polymerization (ATRP) in the presence of a macromolecular initiator. Then, the CNC-g-PtBA is blended into the acrylic resin as a nanofiller to prepare the UV-curable nanocomposite. The results indicated that the contact angle of the CNCs increased from 38.7° to approximately 74.8°, and their thermal stability was significantly improved after graft modification. This contributed to the effective alleviation of the agglomeration phenomenon of nanocomposites due to the high hydrophilicity of pure CNCs. Notably, not only was the UV curing efficiency of the nanocomposites greatly increased but the mechanical properties were also further enhanced. Specifically, with the addition of 0.5 wt% CNC-g-PtBA, the curing time of the nanocomposite was shortened from >30 mins down to approximately 6 mins, and the bending strength was increased from 10 MPa for the original resin and 5 MPa for the addition of pure CNCs to 14.3 MPa, and the bending modulus was also greatly increased (up to approximately 730 MPa). Compared to pure CNCs, they are compatible with the resin, exhibiting high mechanical strength and flexibility, and have virtually no effect on the light transmission of the nanocomposites. Additionally, dielectric analysis (DEA) was used to monitor the dielectric constant and conductivity of the UV-curable nanocomposites in real time to further characterize their curing kinetics. The permittivity of these nanocomposites increased by 125 % compared to pristine resin, which shows potential for applications in high dielectric composites or for improving electrical conductivity. This work provides a feasible method for preparing UV-curable nanocomposites with high curing efficiency and permittivity, realizing a wider application of this high-performance nanocomposite.
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Affiliation(s)
- Qi Wang
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China
| | - Zhaozhe Yang
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China
| | - Xinhao Feng
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China; Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, Nanjing 210037, China.
| | - Xinyou Liu
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China.
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Mahur BK, Ahuja A, Singh S, Maji PK, Rastogi VK. Different nanocellulose morphologies (cellulose nanofibers, nanocrystals and nanospheres) extracted from Sunn hemp (Crotalaria Juncea). Int J Biol Macromol 2023; 253:126657. [PMID: 37660858 DOI: 10.1016/j.ijbiomac.2023.126657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 08/25/2023] [Accepted: 08/31/2023] [Indexed: 09/05/2023]
Abstract
Nanocellulose of different morphologies was extracted from Sunn Hemp (Crotalaria Juncea) using acid hydrolysis. The work focused on two objectives: first, to valorize the Sunn Hemp fibers for nanocellulose (NC) production, and second, to study the effects of acid concentration on different morphologies of NC and their properties. The study extracted nanocellulose at five different concentrations of H2SO4: 16 %, 32 %, 48 %, 64 %, and 72 %. Obtained nanocellulose was characterized by Scanning Electron Microscopy (FE-SEM), Atomic Force Microscopy (AFM), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD) and Thermogravimetric Analysis (TGA). AFM and FE-SEM confirmed the production of three different morphologies of nanocellulose. The NC-32 had a web-like structure typically observed for cellulose nanofibrils (CNF), whereas NC-48 and NC-64 were observed as cellulose nanocrystals (CNC) with rod-like and needle-like shapes, respectively, and NC-72 displayed spherical particles termed cellulose nanospheres (CNS). The total crystallinity index of NC was calculated using FTIR, and a similar trend of crystallinity was also observed from XRD analysis. NC-32 was obtained with the highest yield of 94.83 %, followed by 91.40 % and 81.70 % for NC-48 and NC-64, respectively, whereas NC-72 yielded the lowest yield of 12.03 %. NC-72 had the highest thermal stability among other NC morphologies.
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Affiliation(s)
- Bhupender Kumar Mahur
- Department of Paper Technology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Arihant Ahuja
- Department of Paper Technology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Shiva Singh
- Department of Polymer Science & Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, UP, India
| | - Pradip K Maji
- Department of Polymer Science & Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, UP, India
| | - Vibhore Kumar Rastogi
- Department of Paper Technology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India.
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5
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Bi S, Zhang Z, Yang Z, Shen Z, Cai J, Hu J, Jin H, Qiu T, Yu P, Tan B. Protein modified cellulose nanocrystals on reinforcement and self-driven biodegradation of aliphatic polyester. Carbohydr Polym 2023; 322:121312. [PMID: 37839828 DOI: 10.1016/j.carbpol.2023.121312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 07/31/2023] [Accepted: 08/16/2023] [Indexed: 10/17/2023]
Abstract
Due to the highly environment-dependent biodegradation and uncontrolled degradation period, the long-run feasibility and effectiveness of biodegradable polymers are extensively questioned to solve plastics waste accumulation and pollution problems. This work physically incorporated lipase PS from Burkholderia cepacian on cellulose nanocrystals (CNC) and embedded it in polycaprolactone (PCL) to construct stable and controllable interfacial microenvironment between CNC and PCL for the reinforcement and controllable self-driven biodegradation. The physical adsorption of lipase PS on CNC was studied by monitoring the surface charge and particle size. FT-IR spectra confirmed the successful incorporation of lipase PS and CNC. Compared with CNC, protein-modified CNC had a higher maximum thermal decomposition temperature of 345 °C and lower interfacial tension of 11 mN/m with PCL which provided PCL composites with higher nucleation efficiency and tensile elongation of 1086 % at break. In addition, only 0.67 % embedded lipase PS completely hydrolyzed PCL membranes in <140 h. The post-compression molding at 80-100 °C had negligible influence on the lipase activity, which indicated that CNC could protect the lipase from inactivation in polymer extrusion and compression. This work also highlighted protein-modified CNC as a new technology for polymer reinforcement.
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Affiliation(s)
- Siwen Bi
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, Hubei 430068, China; New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan, Hubei 430068, China; Hubei Longzhong Laboratory, Xiangyang, Hubei 441000, China.
| | - Zhuang Zhang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Zhenzhen Yang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, Hubei 430068, China; New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Zitong Shen
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Jiahui Cai
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Jintao Hu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Haoxiang Jin
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Tianhao Qiu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Peng Yu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, Hubei 430068, China; New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan, Hubei 430068, China; Hubei Longzhong Laboratory, Xiangyang, Hubei 441000, China
| | - Bin Tan
- Department of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350011, China
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6
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Singh S, Bhardwaj S, Meda RS, Verma C, Chhajed M, Ghosh K, Maji PK. Insights into thermal degradation kinetics and liquid crystalline behavior of cellulose nanocrystals from the waste of Cajanus cajan (pigeon pea). Int J Biol Macromol 2023; 242:124507. [PMID: 37100324 DOI: 10.1016/j.ijbiomac.2023.124507] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 03/25/2023] [Accepted: 04/14/2023] [Indexed: 04/28/2023]
Abstract
Cellulose nanocrystals (CNCs) are essential for advancing nanotechnology and modern science. This work used the Cajanus cajan stem, an agricultural waste, as a lignocellulosic mass, which can serve as a supply of CNCs. After extraction from the Cajanus cajan stem, CNCs have been thoroughly characterized. FTIR (Infrared Spectroscopy) and ssNMR (solid-state Nuclear Magnetic Resonance) successfully validated eliminating additional components from the waste stem. The ssNMR and XRD (X-ray diffraction) were utilized to compare the crystallinity index. For structural analysis, the XRD of cellulose Iβ was simulated to compare with the extracted CNCs. Various mathematical models inferred thermal stability and its degradation kinetics to ensure its high-end applications. Surface analysis established the rod-like shape of the CNCs. Rheological measurements were performed to gauge the liquid crystalline properties of CNC. The anisotropic liquid crystalline CNCs' birefringence proves that the Cajanus cajan stem is a promising resource for making CNCs for cutting-edge applications.
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Affiliation(s)
- Shiva Singh
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, India
| | - Shakshi Bhardwaj
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, India
| | - Radheesh Sharma Meda
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, India; Department of Chemical Engineering, Indian Institute of Technology, Roorkee 247667, India
| | - Chhavi Verma
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, India
| | - Monika Chhajed
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, India
| | - Kaushik Ghosh
- Department of Chemistry, Indian Institute of Technology, Roorkee 247667, India
| | - Pradip K Maji
- Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, India.
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Jung J, Sodano HA. Cellulose nanocrystal functionalized aramid nanofiber reinforced epoxy nanocomposites with high strength and toughness. NANOTECHNOLOGY 2023; 34:245703. [PMID: 36753754 DOI: 10.1088/1361-6528/acba1b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
The mechanical properties of polymer nanocomposites can be improved by incorporating various types of nanofillers. The hybridization of nanofillers through covalent linkages between nanofillers with different dimensions and morphology can further increase the properties of nanocomposites. In this work, aramid nanofibers (ANFs) are modified using chlorinated cellulose nanocrystals (CNCs) and functionalized with 3-glycidoxypropyltrimethoxysilane to improve the chemical and mechanical interaction in an epoxy matrix. The integration of CNC functionalized ANFs (fACs) in the epoxy matrix simultaneously improves Young's modulus, tensile strength, fracture properties, and viscoelastic properties. The test results show that 1.5 wt% fAC reinforced epoxy nanocomposites improve Young's modulus and tensile strength by 15.1% and 10.1%, respectively, and also exhibit 2.5 times higher fracture toughness compared to the reference epoxy resin. Moreover, the glass transition temperature and storage modulus are found to increase when fACs are incorporated. Thus, this study demonstrates that the enhanced chemical and mechanical interaction by the CNC functionalization on the ANFs can further improve the static and dynamic mechanical properties of polymer nanocomposites.
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Affiliation(s)
- Jaehyun Jung
- Department of Macromolecular Science and Engineering, University of Michigan, Ann Arbor, MI 48109, United States of America
- R&D Center, Hankook tire and technology Co., Ltd, Daejeon 34127, Republic of Korea
| | - Henry A Sodano
- Department of Macromolecular Science and Engineering, University of Michigan, Ann Arbor, MI 48109, United States of America
- Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI 48109, United States of America
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109, United States of America
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8
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Verma C, Chhajed M, Singh S, Sathwane M, Maji PK. Bioinspired structural color sensors based on self-assembled cellulose nanocrystal/citric acid to distinguish organic solvents. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Candau N, Fernandes JPC, Vasmer E, Maspoch ML. Cellulose nanocrystals as nucleating agents for the strain induced crystallization in natural rubber. SOFT MATTER 2022; 18:8663-8674. [PMID: 36349700 DOI: 10.1039/d2sm01291j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Vulcanized natural rubber (NR)/cellulose nanocrystals (CNC) composites with a CNC content of up to 5 wt% using physical blending and dicumyl peroxide crosslinking were prepared. The tensile properties were investigated at slow and high strain rates. The slow strain rate tests revealed an increase of the elastic modulus concomitant with a decrease of strain at the crystallization onset while increasing the CNC fraction. The high strain rate tests performed near adiabatic conditions demonstrated the ability of the CNC to improve the elastocaloric properties of the NR matrix, with an increase of 30% and 15% of heating and cooling capacities, respectively, in the presence of 3 wt% CNC. Such results were ascribed to (i) a higher thermoelastic effect, due to strain amplification in the NR matrix in the presence of CNC and (ii) a nucleating effect of the CNC on strain induced crystallization. This series of materials can be proposed as a promising eco-friendly alternative to conventional carbon black filled rubber as potential green elastocaloric materials (heating pump, cooling machines).
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Affiliation(s)
- Nicolas Candau
- Centre Català del Plàstic (CCP) - Universitat Politècnica de Catalunya Barcelona Tech (EEBE-UPC), Av. D'Eduard Maristany, 16, 08019, Spain.
| | | | - Emilien Vasmer
- Centre Català del Plàstic (CCP) - Universitat Politècnica de Catalunya Barcelona Tech (EEBE-UPC), Av. D'Eduard Maristany, 16, 08019, Spain.
| | - Maria Lluisa Maspoch
- Centre Català del Plàstic (CCP) - Universitat Politècnica de Catalunya Barcelona Tech (EEBE-UPC), Av. D'Eduard Maristany, 16, 08019, Spain.
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APTES-Modified Nanocellulose as the Formaldehyde Scavenger for UF Adhesive-Bonded Particleboard and Strawboard. Polymers (Basel) 2022; 14:polym14225037. [PMID: 36433163 PMCID: PMC9698025 DOI: 10.3390/polym14225037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/14/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
This work examines the possibility of applying non-modified nanocellulose and nanocellulose functionalized with 3-aminopropyltriethoxysilane (APTES) as a formaldehyde scavenger for commonly used urea-formaldehyde (UF) adhesive. The effect of silanization was determined with the use of Fourier transform infrared spectroscopy (FTIR), flame atomic absorption spectrometry (FAAS), and elemental analysis. Moreover, the ability of cellulosic nanoparticles to absorb the formaldehyde from an aqueous solution was investigated. After homogenization, cured UF adhesives were examined with the use of FTIR, energy-dispersive spectroscopy (SEM-EDS), and the perforator method to determine the content of formaldehyde. Manufactured boards made of rape straw particles and wood particles were tested in terms of their physico-mechanical properties and formaldehyde emission. Studies have shown that the applied method of silanization was effective. Furthermore, in the case of non-modified nanocellulose, no sign of formaldehyde scavenging ability was found. However, the functionalization of cellulosic nanoparticles with APTES containing an amino group led to the significant reduction of formaldehyde content in both the aqueous solution and the UF adhesive. The mechanical properties of both strawboards and particleboards were improved due to the nanocellulose reinforcement; however, no effect of silanization was found. Nevertheless, functionalization with APTES contributed to a decrease in formaldehyde emission from boards, which was not found in the case of the introduction of non-modified cellulosic nanoparticles.
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11
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Singh S, Bhardwaj S, Verma C, Chhajed M, Balayan K, Ghosh K, Maji PK. Elliptically birefringent chemically tuned liquid crystalline nanocellulose composites for photonic applications. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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Hoo DY, Low ZL, Low DYS, Tang SY, Manickam S, Tan KW, Ban ZH. Ultrasonic cavitation: An effective cleaner and greener intensification technology in the extraction and surface modification of nanocellulose. ULTRASONICS SONOCHEMISTRY 2022; 90:106176. [PMID: 36174272 PMCID: PMC9519792 DOI: 10.1016/j.ultsonch.2022.106176] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 09/19/2022] [Accepted: 09/22/2022] [Indexed: 05/17/2023]
Abstract
With rising consumer demand for natural products, a greener and cleaner technology, i.e., ultrasound-assisted extraction, has received immense attention given its effective and rapid isolation for nanocellulose compared to conventional methods. Nevertheless, the application of ultrasound on a commercial scale is limited due to the challenges associated with process optimization, high energy requirement, difficulty in equipment design and process scale-up, safety and regulatory issues. This review aims to narrow the research gap by placing the current research activities into perspectives and highlighting the diversified applications, significant roles, and potentials of ultrasound to ease future developments. In recent years, enhancements have been reported with ultrasound assistance, including a reduction in extraction duration, minimization of the reliance on harmful chemicals, and, most importantly, improved yield and properties of nanocellulose. An extensive review of the strengths and weaknesses of ultrasound-assisted treatments has also been considered. Essentially, the cavitation phenomena enhance the extraction efficiency through an increased mass transfer rate between the substrate and solvent due to the implosion of microbubbles. Optimization of process parameters such as ultrasonic intensity, duration, and frequency have indicated their significance for improved efficiency.
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Affiliation(s)
- Do Yee Hoo
- School of Energy and Chemical Engineering, Xiamen University Malaysia, 43900 Sepang, Selangor Darul Ehsan, Malaysia
| | - Zhen Li Low
- School of Energy and Chemical Engineering, Xiamen University Malaysia, 43900 Sepang, Selangor Darul Ehsan, Malaysia
| | - Darren Yi Sern Low
- Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Siah Ying Tang
- Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Sivakumar Manickam
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam
| | - Khang Wei Tan
- School of Energy and Chemical Engineering, Xiamen University Malaysia, 43900 Sepang, Selangor Darul Ehsan, Malaysia.
| | - Zhen Hong Ban
- School of Energy and Chemical Engineering, Xiamen University Malaysia, 43900 Sepang, Selangor Darul Ehsan, Malaysia.
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13
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N-Doped Graphene Quantum Dot Nanoparticle Synthesis of Optical Active Thermal Stable Polyurea Nanocomposites Using Polybutadiene Chain Modification. INT J POLYM SCI 2022. [DOI: 10.1155/2022/2426749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Geminate thermal stability with optical characteristics is a moving forward achievement in the preparation of polybutadiene-based polyurea nanocomposites. In this regard, nitrogen-doped graphene quantum dots were synthesized from a one-pot hydrothermal reaction of citric acid with urea in an aqueous solution. An in situ polymerization approach was used for the synthesis of polyurea from the reaction of telechelic amine functionalized polybutadiene and toluene diisocyanate (TDI) in the presence of the DBTDL catalyst. Nanocomposites were prepared using 1–3 weight percent of graphene N-quantum dot nanoparticles in the polymer matrix. 1H-NMR and FT-IR spectroscopy techniques elaborated successful synthesis of primary polymer binder, polyurea and nanocomposites. Thermal degradation and characteristics were investigated using the TGA/DTG and DSC methods; lower degradation rates with progressed thermal stabilities as well as proportionate thermal characteristics with wider thermal service range were obtained especially in 3 wt% nanocomposite. Optical behavior information of samples was studied using UV-vis absorption and photoluminescence (PL) spectrometers. EDX, SEM, and AFM techniques confirmed successful nanoparticle and nanocomposite synthesis with improved morphologic and topographic properties.
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Gomri C, Cretin M, Semsarilar M. Recent progress on chemical modification of cellulose nanocrystal (CNC) and its application in nanocomposite films and membranes-A comprehensive review. Carbohydr Polym 2022; 294:119790. [DOI: 10.1016/j.carbpol.2022.119790] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/11/2022] [Accepted: 06/24/2022] [Indexed: 12/11/2022]
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A Review of Rubber Biocomposites Reinforced with Lignocellulosic Fillers. JOURNAL OF COMPOSITES SCIENCE 2022. [DOI: 10.3390/jcs6070183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Lignocellulosic fillers have attracted considerable attention over the years as a promising alternative to conventional petroleum-based fillers (carbon black) in rubber composites due to their renewability, biodegradability, availability, high mechanical properties, low density and low cost. Based on the literature available, a comprehensive review is presented here of rubber biocomposites reinforced with plant-based fillers. The study is divided into different sections depending on the matrix (natural or synthetic rubber) and the type of lignocellulosic fillers (natural fiber, microcrystalline cellulose, lignin and nanocellulose). This review focuses on the curing characteristics, mechanical properties and dynamic mechanical properties of the resulting rubber biocomposites. In addition, the effect of hybrid filler systems, lignocellulosic filler surface modification and modification of the rubber matrix on the properties of these rubber biocomposites are presented and compared. A conclusion is finally presented with some openings for future works.
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Jiang W, Cheng Z, Wang J, Gu J. Modified nanocrystalline cellulose partially replaced carbon black to reinforce natural rubber composites. J Appl Polym Sci 2022. [DOI: 10.1002/app.52057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Weihui Jiang
- School of Materials Science and Engineering South China University of Technology Guangzhou China
| | - Zhuohuang Cheng
- School of Materials Science and Engineering South China University of Technology Guangzhou China
| | - Jingjing Wang
- School of Materials Science and Engineering South China University of Technology Guangzhou China
| | - Ju Gu
- School of Materials Science and Engineering South China University of Technology Guangzhou China
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Thomas SK, Parameswaranpillai J, Krishnasamy S, Begum PS, Nandi D, Siengchin S, George JJ, Hameed N, Salim N, Sienkiewicz N. A comprehensive review on cellulose, chitin, and starch as fillers in natural rubber biocomposites. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Cao L, Huang J, Fan J, Gong Z, Xu C, Chen Y. Nanocellulose-A Sustainable and Efficient Nanofiller for Rubber Nanocomposites: From Reinforcement to Smart Soft Materials. POLYM REV 2021. [DOI: 10.1080/15583724.2021.2001004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Liming Cao
- Lab of Advanced Elastomer, School of Mechanical and Automobile Engineering, South China University of Technology, Guangzhou, China
| | - Jiarong Huang
- Lab of Advanced Elastomer, School of Mechanical and Automobile Engineering, South China University of Technology, Guangzhou, China
| | - Jianfeng Fan
- Lab of Advanced Elastomer, School of Mechanical and Automobile Engineering, South China University of Technology, Guangzhou, China
| | - Zhou Gong
- Lab of Advanced Elastomer, School of Mechanical and Automobile Engineering, South China University of Technology, Guangzhou, China
| | - Chuanhui Xu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Yukun Chen
- Lab of Advanced Elastomer, School of Mechanical and Automobile Engineering, South China University of Technology, Guangzhou, China
- Zhongshan Institute of Modern Industrial Technology, South China University of Technology, Zhongshan, China
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Surface Modified Nanocellulose and Its Reinforcement in Natural Rubber Matrix Nanocomposites: A Review. Polymers (Basel) 2021; 13:polym13193241. [PMID: 34641056 PMCID: PMC8512685 DOI: 10.3390/polym13193241] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 09/21/2021] [Accepted: 09/22/2021] [Indexed: 11/29/2022] Open
Abstract
Natural rubber is of significant economic importance owing to its excellent resilience, elasticity, abrasion and impact resistance. Despite that, natural rubber has been identified with some drawbacks such as low modulus and strength and therefore opens up the opportunity for adding a reinforcing agent. Apart from the conventional fillers such as silica, carbon black and lignocellulosic fibers, nanocellulose is also one of the ideal candidates. Nanocellulose is a promising filler with many excellent properties such as renewability, biocompatibility, non-toxicity, reactive surface, low density, high specific surface area, high tensile and elastic modulus. However, it has some limitations in hydrophobicity, solubility and compatibility and therefore it is very difficult to achieve good dispersion and interfacial properties with the natural rubber matrix. Surface modification is often carried out to enhance the interfacial compatibilities between nanocellulose and natural rubber and to alleviate difficulties in dispersing them in polar solvents or polymers. This paper aims to highlight the different surface modification methods employed by several researchers in modifying nanocellulose and its reinforcement effects in the natural rubber matrix. The mechanism of the different surface medication methods has been discussed. The review also lists out the conventional filler that had been used as reinforcing agent for natural rubber. The challenges and future prospective has also been concluded in the last part of this review.
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Shuib RK, Shamsuddin R. The use of Bis‐(3‐triethoxysilylpropyl) tetrasulphane for surface modification of silica, ferrite and kenaf fiber filled natural rubber composites; comparison of aqueous solvent deposition, dry blend and integral blend methods. J Appl Polym Sci 2021. [DOI: 10.1002/app.50905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Raa Khimi Shuib
- Polymer Engineering School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia Engineering Campus Universiti Sains Malaysia Nibong Tebal Penang Malaysia
| | - Rashid Shamsuddin
- HICoE‐Centre for Biofuel and Biochemical Research, Institute of Self‐Sustainable Building, Department of Chemical Engineering Universiti Teknologi PETRONAS Seri Iskandar Perak Malaysia
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