1
|
Peng L, Fang Z, Lin X, Li G, Chen K, Qiu X. The Critical Role of Ca 2+ in Improving the Transparency and Strength of High-Filler-Content Nanocellulose/Montmorillonite Nanocomposite Films. ACS APPLIED MATERIALS & INTERFACES 2024; 16:38387-38394. [PMID: 38981092 DOI: 10.1021/acsami.4c05970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Strong and transparent nanocellulose/montmorillonite (MMT) nanocomposite films with high filler content (≥50 wt %) are emerging as versatile materials for advanced applications due to their excellent optical, barrier, mechanical, and thermal properties, and environmental friendliness. Nonetheless, these films undergo a notable decline in optical and mechanical properties at high MMT loadings. This study first demonstrates that calcium-ion-induced tactoids are the key factor causing disordered structures in nanocomposite films, leading to the degradation of optical and mechanical properties. We then address this issue by employing a Ca2+ removal strategy─dialysis. Through removing 43% of free Ca2+, simultaneous improvements in both properties are observed. For example, in a nanocomposite film with 70 wt % MMT, light transmittance increases from 75.9 to 91.6%, and the tensile strength rises from 100.4 to 139.4 MPa. This work offers insights into developing strong and transparent nanocomposite films with high MMT contents.
Collapse
Affiliation(s)
- Liyuan Peng
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Wushan Road 381, Guangzhou 510640, P. R. China
| | - Zhiqiang Fang
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Wushan Road 381, Guangzhou 510640, P. R. China
| | - Xiaoqi Lin
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Wushan Road 381, Guangzhou 510640, P. R. China
| | - Guanhui Li
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Wushan Road 381, Guangzhou 510640, P. R. China
| | - Kaihuang Chen
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, Guangdong, P. R. China
| | - Xueqing Qiu
- School of Chemical Engineering and Light Industry, Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangdong University of Technology, Panyu District, Guangzhou 510006, P. R. China
| |
Collapse
|
2
|
Kadumudi FB, Trifol J, Jahanshahi M, Zsurzsan TG, Mehrali M, Zeqiraj E, Shaki H, Alehosseini M, Gundlach C, Li Q, Dong M, Akbari M, Knott A, Almdal K, Dolatshahi-Pirouz A. Flexible and Green Electronics Manufactured by Origami Folding of Nanosilicate-Reinforced Cellulose Paper. ACS APPLIED MATERIALS & INTERFACES 2020; 12:48027-48039. [PMID: 33035422 DOI: 10.1021/acsami.0c15326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Today's consumer electronics are made from nonrenewable and toxic components. They are also rigid, bulky, and manufactured in an energy-inefficient manner via CO2-generating routes. Though petroleum-based polymers such as polyethylene terephthalate and polyethylene naphthalate can address the rigidity issue, they have a large carbon footprint and generate harmful waste. Scalable routes for manufacturing electronics that are both flexible and ecofriendly (Fleco) could address the challenges in the field. Ideally, such substrates must incorporate into electronics without compromising device performance. In this work, we demonstrate that a new type of wood-based [nanocellulose (NC)] material made via nanosilicate (NS) reinforcement can yield flexible electronics that can bend and roll without loss of electrical function. Specifically, the NSs interact electrostatically with NC to reinforce thermal and mechanical properties. For instance, films containing 34 wt % of NS displayed an increased young's modulus (1.5 times), thermal stability (290 → 310 °C), and a low coefficient of thermal expansion (40 ppm/K). These films can also easily be separated and renewed into new devices through simple and low-energy processes. Moreover, we used very cheap and environmentally friendly NC from American Value Added Pulping (AVAP) technology, American Process, and therefore, the manufacturing cost of our NS-reinforced NC paper is much cheaper ($0.016 per dm-2) than that of conventional NC-based substrates. Looking forward, the methodology highlighted herein is highly attractive as it can unlock the secrets of Fleco electronics and transform otherwise bulky, rigid, and "difficult-to-process" rigid circuits into more aesthetic and flexible ones while simultaneously bringing relief to an already-overburdened ecosystem.
Collapse
Affiliation(s)
- Firoz Babu Kadumudi
- Department of Health Technology, Technical University of Denmark (DTU), 2800 Kgs. Lyngby, Denmark
| | - Jon Trifol
- Danish Polymer Center, Department of Chemical Engineering, Technical University of Denmark (DTU), 2800 Kgs. Lyngby, Denmark
| | - Mohammadjavad Jahanshahi
- Student Research Committee, School of Medicine, Bam University of Medical Sciences, 4340847 Bam, Iran
- Department of Marine Chemistry, Faculty of Marine Science, Chabahar Maritime University, 9971756499 Chabahar, Iran
| | - Tiberiu-Gabriel Zsurzsan
- Department of Electrical Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Mehdi Mehrali
- Department of Health Technology, Institute of Biotherapeutic Engineering and Drug Targeting, Center for Intestinal Absorption and Transport of Biopharmaceuticals, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
- Department of Mechanical Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Eva Zeqiraj
- Department of Physics, DTU Physics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Hossein Shaki
- Department of Health Technology, Technical University of Denmark (DTU), 2800 Kgs. Lyngby, Denmark
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, P.O. Box, 14115-111 Tehran, Iran
| | - Morteza Alehosseini
- Department of Health Technology, Technical University of Denmark (DTU), 2800 Kgs. Lyngby, Denmark
| | - Carsten Gundlach
- Department of Physics, DTU Physics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Qiang Li
- Interdisciplinary Nanoscience Centre, Aarhus University, 8000 Aarhus, Denmark
- School of Chemistry and Chemical Engineering, Shandong University, 250100 Jinan, China
| | - Mingdong Dong
- Interdisciplinary Nanoscience Centre, Aarhus University, 8000 Aarhus, Denmark
| | - Mohsen Akbari
- Laboratory for Innovations in MicroEngineering (LiME), Department of Mechanical Engineering, University of Victoria, BC V8P 5C2 Victoria, Canada
- Center for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, BC V8P 5C2 Victoria, Canada
| | - Arnold Knott
- Department of Electrical Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Kristoffer Almdal
- Department of Chemistry, Technical University of Denmark (DTU), 2800 Kgs. Lyngby, Denmark
| | - Alireza Dolatshahi-Pirouz
- Department of Health Technology, Institute of Biotherapeutic Engineering and Drug Targeting, Center for Intestinal Absorption and Transport of Biopharmaceuticals, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
- Radboud Institute for Molecular Life Sciences, Department of Dentistry-Regenerative Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25, 6525EX Nijmegen, The Netherlands
| |
Collapse
|
3
|
Afewerki S, Magalhães LSSM, Silva ADR, Stocco TD, Silva Filho EC, Marciano FR, Lobo AO. Bioprinting a Synthetic Smectic Clay for Orthopedic Applications. Adv Healthc Mater 2019; 8:e1900158. [PMID: 30957992 DOI: 10.1002/adhm.201900158] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Indexed: 01/17/2023]
Abstract
Bioprinting technology has emerged as an important approach to bone and cartilage tissue engineering applications, because it allows the printing of scaffolds loaded with various components, such as cells, growth factors, or drugs. In this context, the bone has a very complex architecture containing highly vascularized and calcified tissues, while cartilage is avascular and has low cellularity and few nutrients. Owing to this complexity, the repair and regeneration of these tissues are highly challenging. Identification of the appropriate biomaterial and fabrication technologies can provide sustainable solutions to this challenge. Here, nanosized Laponite® (Laponite is a trademark of the company BYK Additives Ltd.) has shown to be a promising material due to its unique properties such as excellent biocompatibility, facile gel formation, shear-thinning property (reversible physical crosslinking), high specific surface area, degrade into nontoxic products, and with osteoinductive properties. Even though Laponite and Laponite-based composite for 3D bioprinting application are considered as soft gels, they may therefore not be thought exhibiting sufficient mechanical strength for orthopedic applications. However, through the merging with suitable composite and, also by incorporation of crosslinking step, desired mechanical strength for orthopedic application can be obtained. In this review, recent advances and future perspective of bioprinting Laponite and Laponite composites for orthopedic applications are highlighted.
Collapse
Affiliation(s)
- Samson Afewerki
- Division of Engineering in MedicineDepartment of MedicineBrigham and Women's HospitalHarvard Medical School Cambridge MA 02139 USA
- Harvard‐MIT Division of Health Science and TechnologyMassachusetts Institute of Technology Cambridge MA 02139 USA
| | - Leila S. S. M. Magalhães
- LIMAV Interdisciplinary Laboratory for Advanced MaterialsDepartment of Materials EngineeringUFPI‐Federal University of Piauí Teresina PI 64049‐550 Brazil
| | | | - Thiago D. Stocco
- Faculty of Medical SciencesState University of CampinasRua Tessália Vieira de Camargo 126. Cidade Universitária Zeferino Vaz. Campinas São Paulo 13083‐887 Brazil
- Faculty of PhysiotherapySanto Amaro University São Paulo 04829‐300 Brazil
| | - Edson C. Silva Filho
- LIMAV Interdisciplinary Laboratory for Advanced MaterialsDepartment of Materials EngineeringUFPI‐Federal University of Piauí Teresina PI 64049‐550 Brazil
| | - Fernanda R. Marciano
- Scientifical and Technological InstituteBrasil University 08230‐030 Itaquera São Paulo Brazil
| | - Anderson O. Lobo
- LIMAV Interdisciplinary Laboratory for Advanced MaterialsDepartment of Materials EngineeringUFPI‐Federal University of Piauí Teresina PI 64049‐550 Brazil
| |
Collapse
|