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He Z, Yang X, Mu L, Wang N, Lan X. A versatile "3M" methodology to obtain superhydrophobic PDMS-based materials for antifouling applications. Front Bioeng Biotechnol 2022; 10:998852. [PMID: 36105602 PMCID: PMC9464926 DOI: 10.3389/fbioe.2022.998852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022] Open
Abstract
Fouling, including inorganic, organic, bio-, and composite fouling seriously affects our daily life. To reduce these effects, antifouling strategies including fouling resistance, release, and degrading, have been proposed. Superhydrophobicity, the most widely used characteristic for antifouling that relies on surface wettability, can provide surfaces with antifouling abilities owing to its fouling resistance and/or release effects. PDMS shows valuable and wide applications in many fields, and due to the inherent hydrophobicity, superhydrophobicity can be achieved simply by roughening the surface of pure PDMS or its composites. In this review, we propose a versatile "3M" methodology (materials, methods, and morphologies) to guide the fabrication of superhydrophobic PDMS-based materials for antifouling applications. Regarding materials, pure PDMS, PDMS with nanoparticles, and PDMS with other materials were introduced. The available methods are discussed based on the different materials. Materials based on PDMS with nanoparticles (zero-, one-, two-, and three-dimensional nanoparticles) are discussed systematically as typical examples with different morphologies. Carefully selected materials, methods, and morphologies were reviewed in this paper, which is expected to be a helpful reference for future research on superhydrophobic PDMS-based materials for antifouling applications.
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Affiliation(s)
- Zhoukun He
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
| | - Xiaochen Yang
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Linpeng Mu
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Na Wang
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Xiaorong Lan
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, China
- Institute of Stomatology, Southwest Medical University, Luzhou, China
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2
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Xiao Y, Lei X, Xue S, Lian R, Xiong G, Xin X, Wang D, Zhang Q. Mechanically Strong, Thermally Stable Gas Barrier Polyimide Membranes Derived from Carbon Nanotube-Based Nanofluids. ACS APPLIED MATERIALS & INTERFACES 2021; 13:56530-56543. [PMID: 34758621 DOI: 10.1021/acsami.1c15018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Gas barrier membranes with impressive moisture permeability are highly demanded in air or nature gas dehumidification. We report a novel approach using polyetheramine oligomers covalently grafted on the carbon nanotubes (CNTs) to engineer liquid-like CNT nanofluids (CNT NFs), which are incorporated into a polyimide matrix to enhance the gas barrier and moisture permeation properties. Benefiting from the featured liquid-like characteristic of CNT NFs, a strong interfacial compatibility between CNTs and the polyimide matrix is achieved, and thus, the resulting membranes exhibit high heat resistance and desirable mechanical strength as well as remarkable fracture toughness, beneficially to withstanding creep, impact, and stress fatigue in separation applications. Positron annihilation lifetime spectroscopy measurements indicate a significant decrease in fractional free volume within the resulting membranes, leading to greatly enhanced gas barrier properties while almost showing full retention of moisture permeability compared to that of the pristine membrane. For membranes with 10 wt % CNT NFs, the gas transmission rates, respectively, decrease 99.9% for CH4, 94.4% for CO2, 99.2% for N2, and 97.9% for O2 compared with that of the pristine membrane. Most importantly, with the increasing amount of CNT NFs, the hybrid membranes demonstrate a simultaneous increase of barrier performance and permselectivity for H2O/CH4, H2O/N2, H2O/CO2, and H2O/O2. All these results make these membranes potential candidates for high-pressure natural gas or hyperthermal air dehydration.
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Affiliation(s)
- Yuyang Xiao
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
- Xi'an Key Laboratory of Functional Organic Porous Materials, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
- School of Chemistry and Chemical Engineering, Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions of Ministry of Education, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Xingfeng Lei
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
- Xi'an Key Laboratory of Functional Organic Porous Materials, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
- School of Chemistry and Chemical Engineering, Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions of Ministry of Education, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Shuyu Xue
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
- School of Chemistry and Chemical Engineering, Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions of Ministry of Education, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Ruhe Lian
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
- School of Chemistry and Chemical Engineering, Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions of Ministry of Education, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Guo Xiong
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
- School of Chemistry and Chemical Engineering, Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions of Ministry of Education, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Xiangze Xin
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Dechao Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
| | - Qiuyu Zhang
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
- Xi'an Key Laboratory of Functional Organic Porous Materials, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
- School of Chemistry and Chemical Engineering, Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions of Ministry of Education, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China
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3
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Jang W, Han S, Gu T, Chae H, Whang D. hBN Flake Embedded Al 2O 3 Thin Film for Flexible Moisture Barrier. MATERIALS (BASEL, SWITZERLAND) 2021; 14:7373. [PMID: 34885529 PMCID: PMC8658176 DOI: 10.3390/ma14237373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/29/2021] [Accepted: 11/29/2021] [Indexed: 12/04/2022]
Abstract
Due to the vulnerability of organic optoelectronic devices to moisture and oxygen, thin-film moisture barriers have played a critical role in improving the lifetime of the devices. Here, we propose a hexagonal boron nitride (hBN) embedded Al2O3 thin film as a flexible moisture barrier. After layer-by-layer (LBL) staking of polymer and hBN flake composite layer, Al2O3 was deposited on the nano-laminate template by spatial plasma atomic layer deposition (PEALD). Because the hBN flakes in Al2O3 thin film increase the diffusion path of moisture, the composite layer has a low water vapor transmission ratio (WVTR) value of 1.8 × 10-4 g/m2 day. Furthermore, as embedded hBN flakes restrict crack propagation, the composite film exhibits high mechanical stability in repeated 3 mm bending radius fatigue tests.
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Affiliation(s)
- Wonseok Jang
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon-si 16419, Korea; (W.J.); (T.G.)
| | - Seunghun Han
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon-si 16419, Korea;
| | - Taejun Gu
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon-si 16419, Korea; (W.J.); (T.G.)
| | - Heeyeop Chae
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon-si 16419, Korea;
- SKKU Advanced Institute of Nano Technology (SAINT), Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon-si 16419, Korea
| | - Dongmok Whang
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon-si 16419, Korea; (W.J.); (T.G.)
- SKKU Advanced Institute of Nano Technology (SAINT), Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon-si 16419, Korea
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4
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Yoon SD, Yun YH, Huh M. Preparation and Photocatalytic Properties of Ceramic Nanocomposites Added Zinc Sulfide Nanoparticles. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01509-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Noh MJ, Oh MJ, Choi JH, Yu JC, Kim WJ, Park J, Chang YW, Yoo PJ. Layer-by-layer assembled multilayers of charged polyurethane and graphene oxide platelets for flexible and stretchable gas barrier films. SOFT MATTER 2018; 14:6708-6715. [PMID: 30062344 DOI: 10.1039/c8sm00706c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
With the advent of the era of consumer-oriented displays and mobile devices, the importance of barrier film coatings for securing devices from oxygen or moisture penetration has become more salient. Recently developed approaches to generate gas barrier films in a combination of polyelectrolyte multilayer matrices and incorporated inorganic nanosheets have shown great potential in outperforming conventional gas barrier films. However, these films have the intrinsic drawback of vulnerability to brittleness and inability to stretch for flexible device applications. To overcome this issue, we present a method in which we prepare multilayered films of complementarily charged polyurethane and graphene oxide platelets using spin-assisted, layer-by-layer self-assembly to obtain well-stacked film structures. As a result, the multilayered, thin films deposited on a poly(ethylene terephthalate) (PET) substrate can exhibit significantly reduced oxygen penetration properties (∼30 cc m-2 day-1 for the oxygen transmission rate) while still demonstrating large bending or stretching deformations. Therefore, the proposed approach in this study is anticipated to be extensively utilized for surface coating and protection of flexible and stretchable devices under various operating conditions.
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Affiliation(s)
- Min Ji Noh
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea.
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6
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Chen H, Li Y, Wang S, Li Y, Zhou Y. Highly ordered structured montmorillonite/brominated butyl rubber nanocomposites: Dramatic enhancement of the gas barrier properties by an external magnetic field. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.10.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Zhao M, Yi D, Yang R. Enhanced mechanical properties and fire retardancy of polyamide 6 nanocomposites based on interdigitated crystalline montmorillonite-melamine cyanurate. J Appl Polym Sci 2017. [DOI: 10.1002/app.46039] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Min Zhao
- National Engineering Research Center of Flame-Retardant Materials, School of Materials Science and Engineering, Beijing Institute of Technology, No. 5 South Zhongguancun Street; Haidian District Beijing 10081 China
| | - Deqi Yi
- National Engineering Research Center of Flame-Retardant Materials, School of Materials Science and Engineering, Beijing Institute of Technology, No. 5 South Zhongguancun Street; Haidian District Beijing 10081 China
| | - Rongjie Yang
- National Engineering Research Center of Flame-Retardant Materials, School of Materials Science and Engineering, Beijing Institute of Technology, No. 5 South Zhongguancun Street; Haidian District Beijing 10081 China
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8
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Cai S, Pourdeyhimi B, Loboa EG. High-Throughput Fabrication Method for Producing a Silver-Nanoparticles-Doped Nanoclay Polymer Composite with Novel Synergistic Antibacterial Effects at the Material Interface. ACS APPLIED MATERIALS & INTERFACES 2017; 9:21105-21115. [PMID: 28540723 DOI: 10.1021/acsami.7b03793] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, we report a high-throughput fabrication method at industrial pilot scale to produce a silver-nanoparticles-doped nanoclay-polylactic acid composite with a novel synergistic antibacterial effect. The obtained nanocomposite has a significantly lower affinity for bacterial adhesion, allowing the loading amount of silver nanoparticles to be tremendously reduced while maintaining satisfactory antibacterial efficacy at the material interface. This is a great advantage for many antibacterial applications in which cost is a consideration. Furthermore, unlike previously reported methods that require additional chemical reduction processes to produce the silver-nanoparticles-doped nanoclay, an in situ preparation method was developed in which silver nanoparticles were created simultaneously during the composite fabrication process by thermal reduction. This is the first report to show that altered material surface submicron structures created with the loading of nanoclay enables the creation of a nanocomposite with significantly lower affinity for bacterial adhesion. This study provides a promising scalable approach to produce antibacterial polymeric products with minimal changes to industry standard equipment, fabrication processes, or raw material input cost.
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Affiliation(s)
- Shaobo Cai
- Department of Materials Science and Engineering, North Carolina State University , 3002 EB 1, Raleigh, North Carolina 27695, United States
| | - Behnam Pourdeyhimi
- The Nonwovens Institute at North Carolina State University , 2401 Research Drive, Raleigh, North Carolina 27695, United States
| | - Elizabeth G Loboa
- College of Engineering at University of Missouri , W1051 Thomas & Nell Lafferre Hall, Columbia, Missouri 65211, United States
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9
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Kim TY, Song EH, Kang BH, Kim SJ, Lee YH, Ju BK. Hydrolyzed hexagonal boron nitride/polymer nanocomposites for transparent gas barrier film. NANOTECHNOLOGY 2017; 28:12LT01. [PMID: 28176676 DOI: 10.1088/1361-6528/aa5f2e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A flexible thin gas barrier film formed by layer-by-layer (LBL) assembly has been studied. We propose for the first time that hexagonal boron nitride (h-BN) can be used in LBL assembly. When dispersed in water through sonication-assisted hydrolysis, h-BN develops hydroxyl groups that electrostatically couple with the cationic polymer polydiallyldimethylammonium chloride (PDDA). This process produces hydroxyl-functional h-BN/PDDA nanocomposites. The nanocomposites exhibit well exfoliated and highly ordered h-BN nanosheets, which results in an extremely high visual clarity, with an average transmittance of 99% in the visible spectrum. Moreover, well aligned nanocomposites extend gas diffusion path that reduce water vapor transmission rate to 1.3 × 10-2 g m-2 d-1. The simple and fast LBL process demonstrated here can be applied in many gas barrier applications.
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Affiliation(s)
- Tan Young Kim
- Display and Nanosystem Laboratory, College of Engineering, Korea University, Seoul 136-713, Republic of Korea
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10
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Soltani I, Smith SD, Spontak RJ. Effect of polyelectrolyte on the barrier efficacy of layer-by-layer nanoclay coatings. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2016.12.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Zhao M, Yi D, Camino G, Frache A, Yang R. Interdigitated crystalline MMT–MCA in polyamide 6. RSC Adv 2017. [DOI: 10.1039/c6ra26084e] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel interdigitated crystalline MMT–MCA shows outstanding fire retardancy owing to homogeneous dispersion of MMT and MCA in PA6.
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Affiliation(s)
- Min Zhao
- National Engineering Research Center of Flame Retardant Materials
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing
- China
| | - Deqi Yi
- National Engineering Research Center of Flame Retardant Materials
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing
- China
| | - Giovanni Camino
- Polytechnic of Turin
- UdR INSTM of Turin
- 15121 Alessandria
- Italy
| | - Alberto Frache
- Polytechnic of Turin
- UdR INSTM of Turin
- 15121 Alessandria
- Italy
| | - Rongjie Yang
- National Engineering Research Center of Flame Retardant Materials
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing
- China
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12
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Song Y, Hagen DA, Qin S, Holder KM, Falke K, Grunlan JC. Edge Charge Neutralization of Clay for Improved Oxygen Gas Barrier in Multilayer Nanobrick Wall Thin Films. ACS APPLIED MATERIALS & INTERFACES 2016; 8:34784-34790. [PMID: 27998112 DOI: 10.1021/acsami.6b12937] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Layer-by-layer (LbL) assembled polymer-clay multilayer thin films are known to provide transparent and flexible gas barrier. In an effort to further lower the oxygen transmission rate (OTR) of these nanobrick wall thin films, sodium chloride was introduced into montmorillonite (MMT) suspension as an "indifferent electrolyte". At pH 6.5 the amphoteric edge sites of MMT have a neutral net charge, and a moderate concentration of NaCl effectively shields the charge from neighboring platelets, allowing van der Waals forces to attract the edges to one another. This edge-to-edge bonding creates a much more tortuous path for diffusing oxygen molecules. An eight-bilayer (BL) polyethylenimine (PEI)/MMT multilayer coating (∼50 nm thick), assembled with 5 mM NaCl in the aqueous clay suspension, exhibited an order of magnitude reduction in oxygen permeability (∼4 × 10-20 cm3·cm/(cm2·Pa·s)) relative to its salt-free counterpart. This result represents the best barrier among polymer-clay bilayer systems, which is also lower than SiOx or AlxOy thin films. At higher NaCl concentration, the strong charge screening causes edge-to-face bonding among MMT nanoplatelets, which leads to misalignment in assembled films and increased OTR. This "salty-clay" strategy provides an efficient way to produce better multilayer oxygen barrier thin films by altering ionic strength of the MMT suspension. This simple modification reduces the number of layers necessary for high gas barrier, potentially making these multilayer films interesting for commercial packaging applications.
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Affiliation(s)
- Yixuan Song
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, Texas A&M University , College Station, Texas 77843, United States
| | - David A Hagen
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, Texas A&M University , College Station, Texas 77843, United States
| | - Shuang Qin
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, Texas A&M University , College Station, Texas 77843, United States
| | - Kevin M Holder
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, Texas A&M University , College Station, Texas 77843, United States
| | - Kyle Falke
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, Texas A&M University , College Station, Texas 77843, United States
| | - Jaime C Grunlan
- Department of Materials Science and Engineering and ‡Department of Mechanical Engineering, Texas A&M University , College Station, Texas 77843, United States
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Seethamraju S, Kumar S, B KB, Madras G, Raghavan S, Ramamurthy PC. Million-Fold Decrease in Polymer Moisture Permeability by a Graphene Monolayer. ACS NANO 2016; 10:6501-6509. [PMID: 27314156 DOI: 10.1021/acsnano.6b02588] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Flexible, transparent, and moisture-impermeable materials are critical for packaging applications in electronic, food, and pharmaceutical industries. Here, we report that a single graphene layer embedded in a flexible polymer reduces its water vapor transmission rate (WVTR) by up to a million-fold. Large-area, transparent, graphene-embedded polymers (GEPs) with a WVTR as low as 10(-6) g m(-2) day(-1) are demonstrated. Monolayered graphene, synthesized by chemical vapor deposition, has been transferred onto the polymer substrate directly by a very simple and scalable melt casting process to fabricate the GEPs. The performances of the encapsulated organic photovoltaic (OPV) devices do not vary even after subjecting the GEPs to cyclic bending for 1000 cycles. Accelerated aging studies of working OPV devices encapsulated in the GEPs show a 50% lifetime of equivalent to 1 000 000 min, which satisfies the requirements of organic electronics.
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Affiliation(s)
- Sindhu Seethamraju
- Centre for Nanoscience and Engineering, ‡Department of Chemical Engineering, and §Department of Materials Engineering, Indian Institute of Science , Bangalore 560012, India
| | - Shishir Kumar
- Centre for Nanoscience and Engineering, ‡Department of Chemical Engineering, and §Department of Materials Engineering, Indian Institute of Science , Bangalore 560012, India
| | - Krishna Bharadwaj B
- Centre for Nanoscience and Engineering, ‡Department of Chemical Engineering, and §Department of Materials Engineering, Indian Institute of Science , Bangalore 560012, India
| | - Giridhar Madras
- Centre for Nanoscience and Engineering, ‡Department of Chemical Engineering, and §Department of Materials Engineering, Indian Institute of Science , Bangalore 560012, India
| | - Srinivasan Raghavan
- Centre for Nanoscience and Engineering, ‡Department of Chemical Engineering, and §Department of Materials Engineering, Indian Institute of Science , Bangalore 560012, India
| | - Praveen Chandrashekarapura Ramamurthy
- Centre for Nanoscience and Engineering, ‡Department of Chemical Engineering, and §Department of Materials Engineering, Indian Institute of Science , Bangalore 560012, India
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14
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Song Y, Tzeng P, Grunlan JC. Super Oxygen and Improved Water Vapor Barrier of Polypropylene Film with Polyelectrolyte Multilayer Nanocoatings. Macromol Rapid Commun 2016; 37:963-8. [DOI: 10.1002/marc.201600140] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 04/10/2016] [Indexed: 12/28/2022]
Affiliation(s)
- Yixuan Song
- Department of Mechanical Engineering and Department of Materials Science and Engineering Texas A&M University College Station TX 77843 USA
| | - Ping Tzeng
- Department of Mechanical Engineering and Department of Materials Science and Engineering Texas A&M University College Station TX 77843 USA
| | - Jaime C. Grunlan
- Department of Mechanical Engineering and Department of Materials Science and Engineering Texas A&M University College Station TX 77843 USA
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15
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Heydari A, Sheibani H. Facile polymerization of β-cyclodextrin functionalized graphene or graphene oxide nanosheets using citric acid crosslinker by in situ melt polycondensation for enhanced electrochemical performance. RSC Adv 2016. [DOI: 10.1039/c5ra24685g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
In this study, we report a facile, environmental friendly route to synthesize water-insoluble β-cyclodextrin (β-CD)/graphene oxide (GO) or reduced graphene oxide (rGO) nanocomposite hydrogels.
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Affiliation(s)
- Abolfazl Heydari
- Department of Chemistry
- Shahid Bahonar University of Kerman
- Kerman 76169
- Iran
- Young Researchers Society
| | - Hassan Sheibani
- Department of Chemistry
- Shahid Bahonar University of Kerman
- Kerman 76169
- Iran
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16
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Orientation of Anisometric Layered Silicate Particles in Uncompatibilized and Compatibilized Polymer Melts Under Shear Flow: A Dissipative Particle Dynamics Study. MACROMOL THEOR SIMUL 2015. [DOI: 10.1002/mats.201500045] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Seethamraju S, Ramamurthy PC, Madras G. Reactive interlayer based ultra-low moisture permeable membranes for organic photovoltaic encapsulation. Phys Chem Chem Phys 2015; 17:23165-72. [DOI: 10.1039/c5cp04255k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reactive water vapor barrier materials with zero valent iron and copper nanoparticles for organic device encapsulation.
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Affiliation(s)
- Sindhu Seethamraju
- Centre for Nanoscience and Engineering
- Indian Institute of Science
- Bangalore
- India
| | - Praveen C. Ramamurthy
- Centre for Nanoscience and Engineering
- Indian Institute of Science
- Bangalore
- India
- Department of Materials Engineering
| | - Giridhar Madras
- Department of Chemical Engineering
- Indian Institute of Science
- Bangalore
- India
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18
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Heydari A, Sheibani H. Fabrication of poly(β-cyclodextrin-co-citric acid)/bentonite clay nanocomposite hydrogel: thermal and absorption properties. RSC Adv 2015. [DOI: 10.1039/c5ra12423a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
A β-cyclodextrin (β-CD)/bentonite clay (BNC) nanocomposite hydrogel was prepared through combining in situ intercalative polymerization and melt intercalation methods.
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Affiliation(s)
- Abolfazl Heydari
- Department of Chemistry
- Shahid Bahonar University of Kerman
- Kerman
- Iran
- Young Researchers Society
| | - Hassan Sheibani
- Department of Chemistry
- Shahid Bahonar University of Kerman
- Kerman
- Iran
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