High-toughness polyacrylamide gel containing hydrophobic crosslinking and its double network gel

Polymer ◽  
2016 ◽  
Vol 87 ◽  
pp. 73-80 ◽  
Author(s):  
Jian Chen ◽  
Yinyong Ao ◽  
Tingrui Lin ◽  
Xin Yang ◽  
Jing Peng ◽  
...  
Keyword(s):  
Polyacrylamide Gel ◽  
Double Network ◽  
High Toughness

Biological responses of novel high-toughness double network hydrogels in muscle and the subcutaneous tissues

2007 ◽  
Vol 19 (3) ◽  
pp. 1379-1387 ◽  
Author(s):  
Yoshie Tanabe ◽  
Kazunori Yasuda ◽  
Chinatsu Azuma ◽  
Hiroko Taniguro ◽  
Shin Onodera ◽  
...  
Keyword(s):  
Double Network ◽  
High Toughness ◽  
Biological Responses ◽  
Subcutaneous Tissues

scholarly journals High Toughness Fully Physical Cross-Linked Double Network Organohydrogels for Strain Sensor with Anti-Freezing and Anti-Fatigue Property

2021 ◽  
Author(s):  
Li Tang ◽  
Shaoji Wu ◽  
Yue Xu ◽  
Ting Cui ◽  
Yuhua Li ◽  
...  
Keyword(s):  
Strain Sensor ◽  
Fatigue Property ◽  
Harsh Environment ◽  
Wearable Electronics ◽  
Flexible Sensors ◽  
Double Network ◽  
High Toughness ◽  
Conductive Hydrogels ◽  
Smart Wearable

Flexible sensors based on conductive hydrogels have been widely concerned in the field of smart wearable electronics due to the excellent stretchability and strain-responsive ability. However, lacking harsh environment tolerant...

Facile Synthesis of Tough Double Network Hydrogel

MRS Advances ◽  
2016 ◽  
Vol 1 (27) ◽  
pp. 1953-1958 ◽  
Author(s):  
Jilong Wang ◽  
Junhua Wei ◽  
Jingjing Qiu
Keyword(s):  
Compressive Strength ◽  
Compressive Property ◽  
Natural Polymers ◽  
Facile Synthesis ◽  
Double Network ◽  
High Toughness ◽  
Synthetic Hydrogel ◽  
Hydrogel Network ◽  
Novel Method ◽  
Poly Acrylamide

ABSTRACTIn this paper, a facile and novel method was developed to fabricate high toughness and stiffness double network hydrogels made of ionical-linked natural hydrogel and synthetic hydrogel. The synthetic hydrogel network is formed firstly, and then the gel is soaked in the ionic solution to build second network to form double network hydrogel with high toughness and stiffness. Two different natural polymers, alginate and chitosan, are employed to build rigid and brittle network and poly(acrylamide) is used as soft network in double network hydrogel. The compressive strength of Calcium alginate/poly(acrylamide) double network hydrogels is increased twice than that of poly(acrylamide) single network hydrogels, and the Ca2+ ionically cross-linked alginate is the key to improve the compressive property of double network hydrogels as a sacrificial bond. However, the chitosan/poly(acrylamide) double network hydrogels exhibit no enhancement of compressive strength comparing to poly(acrylamide) single network hydrogels.

scholarly journals Multi-Sacrificial Bonds Enhanced Double Network Hydrogel with High Toughness, Resilience, Damping, and Notch-Insensitivity

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2263
Author(s):  
Manxi Sun ◽  
Jianhui Qiu ◽  
Chunyin Lu ◽  
Shuping Jin ◽  
Guohong Zhang ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Acrylic Acid ◽  
Polyvinyl Alcohol ◽  
Visible Light ◽  
Fatigue Resistance ◽  
Residual Strain ◽  
Double Network ◽  
High Toughness ◽  
Fracture Elongation ◽  
The Common

The engineering applications of hydrogels are generally limited by the common problem of their softness and brittlness. In this study, a composite double network ionic hydrogel (CDN-gel) was obtained by the facile visible light triggered polymerization of acrylic acid (AA), polyvinyl alcohol (PVA), and hydrolyzed triethoxyvinylsilane (TEVS) and subsequent salt impregnation. The resulting CDN-gels exhibited high toughness, recovery ability, and notch-insensitivity. The tensile strength, fracture elongation, Young’s modulus, and toughness of the CDN-gels reached up to ~21 MPa, ~700%, ~3.5 MPa, and ~48 M/m3, respectively. The residual strain at a strain of 200% was only ~25% after stretch-release of 1000 cycles. These properties will enable greater application of these hydrogel materials, especially for the fatigue resistance of tough hydrogels, as well as broaden their applications in damping.

Biocompatible swelling graphene oxide reinforced double network hydrogels with high toughness and stiffness

2017 ◽  
Vol 41 (10) ◽  
pp. 3781-3789 ◽  
Author(s):  
Jilong Wang ◽  
Siheng Su ◽  
Jingjing Qiu
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Shape Stability ◽  
Double Network ◽  
High Toughness ◽  
Superior Mechanical Properties

The graphene oxide reinforced hydrogel based meniscus achieves better shape stability and superior mechanical properties.

Porous double network gels with high toughness, high stretchability and fast solvent-absorption

Soft Matter ◽  
2017 ◽  
Vol 13 (38) ◽  
pp. 6852-6857 ◽  
Author(s):  
Bingjie Sun ◽  
Zhijian Wang ◽  
Qiguang He ◽  
Wei Fan ◽  
Shengqiang Cai
Keyword(s):  
Mechanical Properties ◽  
Absorption Capacity ◽  
Double Network ◽  
Pore Sizes ◽  
High Toughness ◽  
Solvent Absorption

We report the preparation of porous double network hydrogels with different pore sizes. These porous gels exhibit excellent mechanical properties, fast solvent-absorption and higher solvent-absorption capacity.

A novel high-toughness, organic/inorganic double-network fire-retardant gel for coal-seam with high ground temperature

Fuel ◽  
2020 ◽  
Vol 263 ◽  
pp. 116779 ◽  
Author(s):  
Yongsheng Li ◽  
Xiangming Hu ◽  
Weimin Cheng ◽  
Zhiang Shao ◽  
Di Xue ◽  
...  
Keyword(s):  
Coal Seam ◽  
Fire Retardant ◽  
Ground Temperature ◽  
Double Network ◽  
High Toughness

Dual physically crosslinked double network hydrogels with high toughness and self-healing properties

Soft Matter ◽  
2017 ◽  
Vol 13 (5) ◽  
pp. 911-920 ◽  
Author(s):  
Xuefeng Li ◽  
Qian Yang ◽  
Youjiao Zhao ◽  
Shijun Long ◽  
Jie Zheng
Keyword(s):  
Self Healing ◽  
Double Network ◽  
High Toughness ◽  
Physically Crosslinked
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