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Gisbert Roca F, Martínez-Ramos C, Ivashchenko S, García-Bernabé A, Compañ V, Monleón Pradas M. Polylactic Acid Nanofiber Membranes Grafted with Carbon Nanotubes with Enhanced Mechanical and Electrical Properties. ACS APPLIED POLYMER MATERIALS 2023; 5:6081-6094. [PMID: 38344007 PMCID: PMC10852358 DOI: 10.1021/acsapm.3c00776] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 07/04/2023] [Indexed: 03/21/2024]
Abstract
Electroconductive materials based on poly(lactic acid) (PLA) electrospinning membranes grafted with carbon nanotubes (CNTs) functionalized with the carboxylic group R-COOH have been obtained. PLA electrospun membranes were modified with sulfuric acid (H2SO4) to oxidize its surface to subsequently graft the CNTs, the treatment time and drying of the membranes before grafting with CNTs being critical, influencing the final properties of the materials. SEM images showed that CNTs presented a uniform distribution on the surface of the PLA nanofibers, while FTIR spectra of PLA-CNTs materials revealed characteristic hydroxyl groups, as evidenced by absorption peaks of CNTs. Thanks to the grafting with CNTs, the resulting PLA-CNTs membranes present an improvement of the mechanical and conductive properties when compared with PLA membranes. On the one hand, grafting with CNTs causes the nanofibers to have greater rigidity, so they are more manipulable and can more easily preserve their conformation when stress is exerted. On the other hand, grafting with CNTs allows elimination of the insulating barrier of the PLA, reducing the resistivity and providing high electrical conductivity to the PLA-CNTs membranes. The incorporation of CNTs into PLA electrospun membranes is expected to offer greater functionalities to electrospun composite nanofibers for medical and industrial applications.
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Affiliation(s)
- Fernando Gisbert Roca
- Center
for Biomaterials and Tissue Engineering. Universitat Politècnica de València. Camino de Vera s/n, Valencia 46022, Spain
| | - Cristina Martínez-Ramos
- Center
for Biomaterials and Tissue Engineering. Universitat Politècnica de València. Camino de Vera s/n, Valencia 46022, Spain
- Unitat
Predepartamental de Medicina, Universitat
Jaume I, 12071 Castellón de la Plana, Spain
| | - Sergiy Ivashchenko
- Center
for Biomaterials and Tissue Engineering. Universitat Politècnica de València. Camino de Vera s/n, Valencia 46022, Spain
| | - Abel García-Bernabé
- Departamento
de Termodinámica Aplicada. Universitat
Politècnica de València. Camino de Vera s/n, Valencia 46022, Spain
| | - Vicente Compañ
- Departamento
de Termodinámica Aplicada. Universitat
Politècnica de València. Camino de Vera s/n, Valencia 46022, Spain
| | - Manuel Monleón Pradas
- Center
for Biomaterials and Tissue Engineering. Universitat Politècnica de València. Camino de Vera s/n, Valencia 46022, Spain
- CIBER-BBN.
Biomedical Research Networking Center in Bioengineering Biomaterials
and Nanomedicine. Madrid 28029, Spain
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Aziz T, Farid A, Haq F, Kiran M, Ullah N, Faisal S, Ali A, Khan FU, You S, Bokhari A, Mubashir M, Chuah LF, Show PL. Role of silica-based porous cellulose nanocrystals in improving water absorption and mechanical properties. ENVIRONMENTAL RESEARCH 2023; 222:115253. [PMID: 36702191 DOI: 10.1016/j.envres.2023.115253] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/15/2022] [Accepted: 01/07/2023] [Indexed: 05/27/2023]
Abstract
Epoxy resins are important thermosetting polymers. They are widely used in many applications i.e., adhesives, plastics, coatings and sealers. Epoxy molding compounds have attained dominance among common materials due to their excellent mechanical properties. The sol-gel simple method was applied to distinguish the impact on the colloidal time. The properties were obtained with silica-based fillers to enable their mechanical and thermal improvement. The work which we have done here on epoxy-based nanocomposites was successfully modified. The purpose of this research was to look into the effects of cellulose nanocrystals (CNCs) on various properties and applications. CNCs have recently attracted a lot of interest in a variety of industries due to their high aspect ratio, and low density which makes them perfect candidates. Adding different amounts of silica-based nanocomposites to the epoxy system. Analyzed with different techniques such as Fourier-transformed infrared spectroscope (FTIR), thermogravimetric analysis (TGA) and scanning electronic microscopic (SEM) to investigate the morphological properties of modified composites. The various %-age of silica composite was prepared in the epoxy system. The 20% of silica was shown greater enhancement and improvement. They show a better result than D-400 epoxy. Increasing the silica, the transparency of the films decreased, because clustering appears. This shows that the broad use of CNCs in environmental engineering applications is possible, particularly for surface modification, which was evaluated for qualities such as absorption and chemical resistant behavior.
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Affiliation(s)
- Tariq Aziz
- Westlake University. School of Engineering. Hangzhou. Zhejiang Province, 310024, China
| | - Arshad Farid
- Gomal Center of Biochemistry and Biotechnology, Gomal University, D. I. Khan, 29050, Pakistan.
| | - Fazal Haq
- Department of Chemistry. Gomal University, D. I. Khan, 29050, Pakistan
| | - Mehwish Kiran
- Department of Horticulture. Gomal University, D. I. Khan, 29050, Pakistan
| | - Naveed Ullah
- Department of Chemistry. Gomal University, D. I. Khan, 29050, Pakistan
| | - Shah Faisal
- Department of Chemistry. University of Science and Technology Bannu, 28000, Pakistan
| | - Amjad Ali
- Institute of Polymer Material. School of Material Science & Engineering, Jiangsu University, China
| | - Farman Ullah Khan
- Department of Chemistry. University of Science and Technology Bannu, 28000, Pakistan
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Awais Bokhari
- Department of Chemical Engineering, COMSATS University Islamabad (CUI), Lahore Campus, Lahore, Punjab, 54000, Pakistan; Sustainable Process Integration Laboratory, SPIL, NETME Centre, Faculty of Mechanical Engineering, Brno University of Technology, VUT Brno, Technická 2896/2, 616 00, Brno, Czech Republic
| | - Muhammad Mubashir
- Department of Petroleum Engineering, School of Engineering, Asia Pacific University of Technology and Innovation, 57000, Kuala Lumpur, Malaysia
| | - Lai Fatt Chuah
- Faculty of Maritime Studies, Universiti Malaysia Terengganu, Terengganu, Malaysia.
| | - Pau Loke Show
- Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, 325035, China; Department of Chemical Engineering, Khalifa University, Shakhbout Bin Sultan St Zone 1, Abu Dhabi, United Arab Emirates; Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai 602105, India; Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500, Semenyih, Selangor, Malaysia.
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Shin JH, Han GY, Kim HJ. Latent, Cross-Linkable Triazole Platform on a Carbon Fiber Surface for Enhancing Interfacial Cross-Linking within Carbon Fiber/Epoxy Composites. ACS OMEGA 2022; 7:12803-12815. [PMID: 35474824 PMCID: PMC9026132 DOI: 10.1021/acsomega.2c00045] [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: 01/04/2022] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
A long-running need in carbon fiber composite production is to ameliorate interfacial adhesion between the polymer and carbon fibers. Here, we present a convenient and feasible strategy for controlling the carbon fiber's surface in a continuous process: syntheses of click-modified silanes via copper(I)-catalyzed azide-alkyne cycloaddition reaction and grafting them onto fiber surfaces which prepare a latent curable platform under mild processes without postmodification. As 1,2,3-triazole moieties from the click reaction were added to the epoxy/dicyandiamide system, they triggered additional reactions in the later conversion stage; approximately, a 20% increase in the total reaction enthalpy compared to the system with no additives was obtained. We expected the enhanced cross-linking between the surface and matrix to expand the interfacial area, leading to reinforcements on interfacial adhesion and stress-transfer abilities within composites. The merit of the approach is well-demonstrated by conductive atomic force microscopy, showing that the interphase can be extended up to 6-fold when the triazole platform acts as curatives and serve as bridges after the epoxy cure. Consequently, the composite's interfacial shear strength and interlaminar shear strength were increased up to 78 and 72%, respectively. This work affords a reactive platform where a custom-tailored fiber/matrix interface can be designed by virtue of versatility in clickable reactants.
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Affiliation(s)
- Jae-Ho Shin
- Department
of Agriculture, Forestry and Bioresources, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic
of Korea
| | - Gi-Yeon Han
- Department
of Agriculture, Forestry and Bioresources, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic
of Korea
| | - Hyun-Joong Kim
- Department
of Agriculture, Forestry and Bioresources, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic
of Korea
- Research
Institute of Agriculture and Life Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826 Republic of
Korea
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Han F, Zhang Z, Ma T, Shou C. Preparation and mechanical properties of water‐dispersible hyperbranched polymer grafted carbon black/natural rubber composites by latex blending method. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Fei Han
- Department of Chemistry and Chemical Engineering University of Jinan Jinan People's Republic of China
| | - Zhiliang Zhang
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan People's Republic of China
| | - Teng Ma
- Department of Chemistry and Chemical Engineering University of Jinan Jinan People's Republic of China
| | - Chongqi Shou
- Department of Chemistry and Chemical Engineering University of Jinan Jinan People's Republic of China
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Liang X, Li X, Tang Y, Zhang X, Wei W, Liu X. Hyperbranched epoxy resin-grafted graphene oxide for efficient and all-purpose epoxy resin modification. J Colloid Interface Sci 2021; 611:105-117. [PMID: 34933189 DOI: 10.1016/j.jcis.2021.12.068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 12/01/2021] [Accepted: 12/11/2021] [Indexed: 12/26/2022]
Abstract
Despite great efforts have been made on epoxy resins modification, development of additives that can be used to efficiently and universally modify epoxy composites remains a challenging task. Herein, graphene oxide (GO) sheets were covalently linked with hyperbranched epoxy resin (HBPEE-epoxy) to form HBPEE-epoxy functionalized GO (HPE-GO), which was then incorporated into epoxy resin (EP) matrix to achieve efficient and all-purpose enhancement of the properties of EPs. Compared with unmodified GO sheets, the functionalized HPE-GO sheets were better dispersed and exhibited better interfacial compatibility with the epoxy matrix, and consequently, the mechanical and thermal properties of HPE-GO/EP composites improved significantly compared to unmodified GO/EP composites. The tensile strength, flexural strength, impact strength, and fracture toughness (KIC) of EP composites containing 0.5 wt% HPE-GO increased by 65.0%, 36.2%, 259.1%, and 178.9%, respectively, compared with those for the neat EP. The storage modulus (E'), glass transition temperature (Tg), and thermal stability (T5%) also showed modest improvements. Furthermore, the HPE-GO/EP composites exhibited optimal thermal conductivities and thermal expansion properties, while maintaining higher volume resistivities compared with GO/EP composites. The results of this study support that HPE-GO is a promising, all-purpose modifier for EPs.
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Affiliation(s)
- Xue Liang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, No 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, PR China
| | - Xiaojie Li
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, No 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, PR China.
| | - Yong Tang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, No 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, PR China
| | - Xiyu Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, No 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, PR China
| | - Wei Wei
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, No 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, PR China
| | - Xiaoya Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, No 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, PR China.
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Wang Y, Ji W, Xu Y, Zou L, Lu H, Sun C. Dispersion and fluorescence properties of multiwalled carbon nanotubes modified with hyperbranched poly(phenylalanine-lysine). Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125557] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Frigione M, Lettieri M. Recent Advances and Trends of Nanofilled/Nanostructured Epoxies. MATERIALS 2020; 13:ma13153415. [PMID: 32756362 PMCID: PMC7435812 DOI: 10.3390/ma13153415] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/21/2020] [Accepted: 07/30/2020] [Indexed: 12/26/2022]
Abstract
This paper aims at reviewing the works published in the last five years (2016–2020) on polymer nanocomposites based on epoxy resins. The different nanofillers successfully added to epoxies to enhance some of their characteristics, in relation to the nature and the feature of each nanofiller, are illustrated. The organic–inorganic hybrid nanostructured epoxies are also introduced and their strong potential in many applications has been highlighted. The different methods and routes employed for the production of nanofilled/nanostructured epoxies are described. A discussion of the main properties and final performance, which comprise durability, of epoxy nanocomposites, depending on chemical nature, shape, and size of nanoparticles and on their distribution, is presented. It is also shown why an efficient uniform dispersion of the nanofillers in the epoxy matrix, along with strong interfacial interactions with the polymeric network, will guarantee the success of the application for which the nanocomposite is proposed. The mechanisms yielding to the improved properties in comparison to the neat polymer are illustrated. The most important applications in which these new materials can better exploit their uniqueness are finally presented, also evidencing the aspects that limit a wider diffusion.
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Affiliation(s)
- Mariaenrica Frigione
- Department of Innovation Engineering, University of Salento, Prov. le Lecce-Monteroni, 73100 Lecce, Italy
- Correspondence: ; Tel.: +39-0832-297215
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Basheer BV, George JJ, Siengchin S, Parameswaranpillai J. Polymer grafted carbon nanotubes—Synthesis, properties, and applications: A review. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.nanoso.2020.100429] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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