Structural Characteristics of Double Network Gels with Extremely High Mechanical Strength

2004 ◽  
Vol 37 (14) ◽  
pp. 5370-5374 ◽  
Author(s):  
Yang-Ho Na ◽  
Takayuki Kurokawa ◽  
Yoshinori Katsuyama ◽  
Hiroyuki Tsukeshiba ◽  
Jian Ping Gong ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Structural Characteristics ◽  
High Mechanical Strength ◽  
Double Network

A novel biocompatible double network hydrogel consisting of konjac glucomannan with high mechanical strength and ability to be freely shaped

2015 ◽  
Vol 3 (9) ◽  
pp. 1769-1778 ◽  
Author(s):  
Zhiyong Li ◽  
Yunlan Su ◽  
Baoquan Xie ◽  
Xianggui Liu ◽  
Xia Gao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tissue Engineering ◽  
Cell Adhesion ◽  
Mechanical Strength ◽  
Synthetic Polymer ◽  
Natural Polymer ◽  
Tissue Engineering Scaffolds ◽  
Adhesion Properties ◽  
High Mechanical Strength ◽  
Double Network

A novel physically linked double-network (DN) hydrogel was prepared by natural polymer KGM and synthetic polymer PAAm. The DN hydrogels exhibit good mechanical properties, cell adhesion properties, and can be freely shaped, making such hydrogels promising for tissue engineering scaffolds.

Double-Network Hydrogels with Extremely High Mechanical Strength

2003 ◽  
Vol 15 (14) ◽  
pp. 1155-1158 ◽  
Author(s):  
J.P. Gong ◽  
Y. Katsuyama ◽  
T. Kurokawa ◽  
Y. Osada
Keyword(s):  
Mechanical Strength ◽  
High Mechanical Strength ◽  
Double Network

scholarly journals The Influence of Structure of Multilayer Woven Fabrics on Their Mechanical Properties

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1315
Author(s):  
Ewa Witczak ◽  
Izabela Jasińska ◽  
Iwona Krawczyńska
Keyword(s):  
Mechanical Strength ◽  
Structural Characteristics ◽  
Structural Models ◽  
Strength Properties ◽  
Woven Fabrics ◽  
Breaking Force ◽  
Bending Rigidity ◽  
High Mechanical Strength ◽  
Conveyor Belts ◽  
Cyclic Tensile Test

Multilayer woven fabrics used for conveyor belts must be characterized by high mechanical strength. The design process of multilayer woven fabrics for such application requires taking into account the structural characteristics of the fabric, which allows to adjust the final product properties to the dedicated use. The geometry of warp threads—means stuffer and binding is the decisive aspect, which influences the strength properties of multilayer woven fabrics and materials made with their use as well. The aim of this work was to examine the possibility of shaping mechanical strength and bending rigidity of multilayer woven fabrics by changing the order of introducing weft threads into individual layers. The eight variants of multilayer woven fabrics were manufactured using laboratory harness loom. They were produced using different structural models in two weft variants, then tested. The mechanical features were determined, such as breaking force, recovered and unrecovered elongations in cyclic tensile test, stiffness rigidity. The analysis of the obtained results confirmed, that both the model and the order in which the weft threads were introduced into individual layers influence the mechanical strength and bending rigidity of multilayer woven. It was found, that the strength properties characterized by the above mentioned indicators are influenced by the number of threads weaved as both the stuffer and binding warp.

A double network hydrogel with high mechanical strength and shape memory properties

2018 ◽  
Vol 31 (3) ◽  
pp. 350-358 ◽  
Author(s):  
Lei Zhu ◽  
Chun-ming Xiong ◽  
Xiao-fen Tang ◽  
Li-jun Wang ◽  
Kang Peng ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Shape Memory ◽  
High Mechanical Strength ◽  
Double Network ◽  
Shape Memory Properties

scholarly journals Role of Nanoparticle-Polymer Interactions on the Development of Double-Network Hydrogel Nanocomposites with High Mechanical Strength

2020 ◽  
Author(s):  
Andrew Chang ◽  
Nasim Babhadiashar ◽  
Emma Barrett-Catton ◽  
Prashanth Asuri
Keyword(s):  
Mechanical Properties ◽  
Mechanical Strength ◽  
Elastic Moduli ◽  
Theoretical Research ◽  
High Mechanical Strength ◽  
Double Network ◽  
The Past ◽  
Hydrogel Nanocomposites ◽  
Hydrogel Composites

Extensive experimental and theoretical research over the past several decades has culminated in the understanding of the mechanisms behind nanoparticle-mediated enhancements on the mechanical properties of hydrogels. This information is not only crucial to realizing applications that directly benefit from developing hydrogels with high mechanical strength, but also to guide the development of strategies to further enhance hydrogel properties by combining different approaches. In our study, we investigated the effect of combining two approaches – addition of nanoparticles and crosslinking two different polymers (to create double-network hydrogels) – on the mechanical properties of hydrogels. Our studies revealed that these approaches may be combined to synthesize hydrogel composites with enhanced properties; however, both polymers in the double-network hydrogel must strongly interact with the nanoparticles to fully benefit from the addition of nanoparticles. Moreover, the concentration of hydrogel monomers used for the preparation of the double-network hydrogels had a significant effect on the extent of nanoparticle-mediated enhancements; double-network hydrogel nanocomposites prepared using lower monomer concentrations showed higher enhancements in elastic moduli compared to those prepared using high monomer concentrations. Collectively, these results demonstrate that the hypotheses previously developed to understand the role of nanoparticles on the mechanical properties of hydrogel nanocomposites may be extended to double-network hydrogel systems and guide the development of next generation hydrogels with extraordinary mechanical properties through a combination of orthogonal approaches.

scholarly journals Role of Nanoparticle–Polymer Interactions on the Development of Double-Network Hydrogel Nanocomposites with High Mechanical Strength

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 470 ◽  
Author(s):  
Andrew Chang ◽  
Nasim Babhadiashar ◽  
Emma Barrett-Catton ◽  
Prashanth Asuri
Keyword(s):  
Mechanical Properties ◽  
Mechanical Strength ◽  
Elastic Moduli ◽  
Theoretical Research ◽  
High Mechanical Strength ◽  
Double Network ◽  
The Past ◽  
Hydrogel Nanocomposites ◽  
Hydrogel Composites

Extensive experimental and theoretical research over the past several decades has pursued strategies to develop hydrogels with high mechanical strength. Our study investigated the effect of combining two approaches, addition of nanoparticles and crosslinking two different polymers (to create double-network hydrogels), on the mechanical properties of hydrogels. Our experimental analyses revealed that these orthogonal approaches may be combined to synthesize hydrogel composites with enhanced mechanical properties. However, the enhancement in double network hydrogel elastic modulus due to incorporation of nanoparticles is limited by the ability of the nanoparticles to strongly interact with the polymers in the network. Moreover, double-network hydrogel nanocomposites prepared using lower monomer concentrations showed higher enhancements in elastic moduli compared to those prepared using high monomer concentrations, thus indicating that the concentration of hydrogel monomers used for the preparation of the nanocomposites had a significant effect on the extent of nanoparticle-mediated enhancements. Collectively, these results demonstrate that the hypotheses previously developed to understand the role of nanoparticles on the mechanical properties of hydrogel nanocomposites may be extended to double-network hydrogel systems and guide the development of next-generation hydrogels with extraordinary mechanical properties through a combination of different approaches.

High Mechanical Strength Double-Network Hydrogel with Bacterial Cellulose

2004 ◽  
Vol 14 (11) ◽  
pp. 1124-1128 ◽  
Author(s):  
A. Nakayama ◽  
A. Kakugo ◽  
J. P. Gong ◽  
Y. Osada ◽  
M. Takai ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Bacterial Cellulose ◽  
High Mechanical Strength ◽  
Double Network
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