scholarly journals Expanded graphene oxide fibers with high strength and increased elongation

RSC Advances ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 4198-4202 ◽  
Author(s):  
Ashok D. Ugale ◽  
LinLin Chi ◽  
Min-Kyu Kim ◽  
Sudong Chae ◽  
Jae-Young Choi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Mechanical Strength ◽  
Basal Plane ◽  
High Strength ◽  
Interplanar Distance ◽  
High Mechanical Strength ◽  
Plane Interaction

The increased interplanar distance between the EGO sheets favored the edge-to-edge than basal plane interaction within the fiber, resulting in high mechanical strength (492 MPa) and increased elongation (6.1%).

scholarly journals High-strength and fibrous capsule–resistant zwitterionic elastomers

2021 ◽  
Vol 7 (1) ◽  
pp. eabc5442
Author(s):  
Dianyu Dong ◽  
Caroline Tsao ◽  
Hsiang-Chieh Hung ◽  
Fanglian Yao ◽  
Chenjue Tang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Strength ◽  
High Strength ◽  
Design Principles ◽  
Fibrous Capsule ◽  
High Mechanical Strength ◽  
Capsule Formation ◽  
Locking Mechanism ◽  
Fibrous Capsule Formation

The high mechanical strength and long-term resistance to the fibrous capsule formation are two major challenges for implantable materials. Unfortunately, these two distinct properties do not come together and instead compromise each other. Here, we report a unique class of materials by integrating two weak zwitterionic hydrogels into an elastomer-like high-strength pure zwitterionic hydrogel via a “swelling” and “locking” mechanism. These zwitterionic-elastomeric-networked (ZEN) hydrogels are further shown to efficaciously resist the fibrous capsule formation upon implantation in mice for up to 1 year. Such materials with both high mechanical properties and long-term fibrous capsule resistance have never been achieved before. This work not only demonstrates a class of durable and fibrous capsule–resistant materials but also provides design principles for zwitterionic elastomeric hydrogels.

A room-temperature self-healing elastomer with ultra-high strength and toughness fabricated via optimized hierarchical hydrogen-bonding interactions

2022 ◽  
Author(s):  
Liangliang Xia ◽  
Ming Zhou ◽  
Hongjun Tu ◽  
wen Zeng ◽  
xiaoling Yang ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Mechanical Strength ◽  
Room Temperature ◽  
Polymeric Materials ◽  
High Strength ◽  
Self Healing ◽  
High Mechanical Strength ◽  
Hydrogen Bonding Interactions ◽  
Healing Efficiency ◽  
Good Healing

The preparation of room-temperature self-healing polymeric materials with good healing efficiency and high mechanical strength is challenging. Two processes are essential to realise the room-temperature self-healing of materials: (a) a...

scholarly journals High strength and low swelling composite hydrogels from gelatin and delignified wood

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Shennan Wang ◽  
Kai Li ◽  
Qi Zhou
Keyword(s):  
Mechanical Strength ◽  
High Strength ◽  
Honeycomb Structure ◽  
Composite Hydrogel ◽  
High Porosity ◽  
High Mechanical Strength ◽  
Composite Hydrogels ◽  
Freeze Dried ◽  
Strength And Stiffness ◽  
Phosphate Buffered Saline

Abstract A delignified wood template with hydrophilic characteristics and high porosity was obtained by removal of lignin. Gelatin was infiltrated into the delignified wood and further crosslinked with a natural crosslinker genipin to form hydrogels. The composite hydrogels showed high mechanical strength under compression and low swelling in physiological condition. The effect of genipin concentrations (1, 50 and 100 mM) on structure and properties of the composite hydrogels were studied. A porous honeycomb structure with tunable pore size and porosity was observed in the freeze-dried composite hydrogels. High elastic modulus of 11.82 ± 1.51 MPa and high compressive yield stress of 689.3 ± 34.9 kPa were achieved for the composite hydrogel with a water content as high as 81%. The equilibrium water uptake of the freeze-dried hydrogel in phosphate buffered saline at 37 °C was as low as 407.5%. These enables the delignified wood structure an excellent template in composite hydrogel preparation by using infiltration and in-situ synthesis, particularly when high mechanical strength and stiffness are desired.

AW DYNALLOY 50

Alloy Digest ◽  
1966 ◽  
Vol 15 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Mechanical Strength ◽  
High Strength ◽  
Heat Treating ◽  
Bend Strength ◽  
Low Alloy Steel ◽  
Steel Company ◽  
High Mechanical Strength ◽  
Weight Saving ◽  
Structural Applications

Abstract AW DYNALLOY 50 is a high strength low alloy steel which offers high mechanical strength together with good forming properties and weldability. It is recommended where improved strength or weight saving is desired in structural applications. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and bend strength as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-203. Producer or source: Alan Wood Steel Company.

Mechanically strong multifunctional three-dimensional crosslinked aramid nanofiber/reduced holey graphene oxide and aramid nanofiber/reduced holey graphene oxide/polyaniline hydrogels and derived films

Nanoscale ◽  
2021 ◽  
Author(s):  
Yubo Zou ◽  
Zeyu Chen ◽  
Zhiyuan Peng ◽  
Chuying Yu ◽  
Wenbin Zhong
Keyword(s):  
Thermal Stability ◽  
Graphene Oxide ◽  
Mechanical Strength ◽  
Three Dimensional ◽  
Covalent Bonds ◽  
High Mechanical Strength

To endow high mechanical strength and thermal stability aramid nanofiber (ANF) with novel functionality will lead to great applications. Herein, a strategy to generate covalent-bonds among components towards obtaining the...

The Development of High Strength and High Bs NiZn Ferrite Material

2013 ◽  
Vol 320 ◽  
pp. 3-6
Author(s):  
Min Nie ◽  
Jiang Ping Sun ◽  
Fang Zhou Xu
Keyword(s):  
Mechanical Strength ◽  
Flux Density ◽  
High Strength ◽  
Oxide Ceramic ◽  
Test Results ◽  
High Mechanical Strength ◽  
Ceramic Method ◽  
Ferrite Material ◽  
Low Profile ◽  
Power Inductors

NiZn ferrite material TN40S-X was fabricated by conventional oxide ceramic method. The test results show that the material possesses high mechanical strength and high saturation flux density (Bs),and it is suitable for low profile power inductors with dual requirements of mechanical strength and saturation flux density.

Functional reduced graphene oxide-based membranes with selective ion transport channels for zwitterionic ions separation based on the pH gradient

Nanoscale ◽  
2018 ◽  
Vol 10 (3) ◽  
pp. 1119-1128 ◽  
Author(s):  
Yu Wu ◽  
Hongyun Ji ◽  
Feng Yang ◽  
Yan Meng ◽  
Yujue Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Ion Channels ◽  
Mechanical Strength ◽  
Reduced Graphene Oxide ◽  
Interlayer Spacing ◽  
Ph Gradient ◽  
Free Standing ◽  
High Mechanical Strength ◽  
Reduced Graphene ◽  
Transport Channels

In this work, we report a method for the fabrication of a functional free-standing graphene membrane (FFGM) with high mechanical strength, enlarged interlayer spacing and ion channels for zwitterionic ions separation based on the inner pH gradient.

Super-Assembly of Freestanding Graphene Oxide-Aramid Fiber Membrane with T-Mode Subnanochannels for Sensitive Ion Transport

The Analyst ◽  
2022 ◽  
Author(s):  
Shan Zhou ◽  
Lei Xie ◽  
Miao Yan ◽  
Hui Zeng ◽  
Xin Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Ion Transport ◽  
Mechanical Strength ◽  
Aramid Fiber ◽  
Two Dimensional ◽  
Fiber Membrane ◽  
High Mechanical Strength ◽  
One Dimensional ◽  
Membrane Science ◽  
Excellent Stability

Biomimetic nacre-like membranes composed of two-dimensional lamellar sheets and one-dimensional nanofibers exhibit high mechanical strength and excellent stability. Thus, they show substantial application in the field of membrane science and...

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