Viscoelastic behavior of HAp reinforced polyvinyl alcohol composite hydrogel for tissue engineered articular cartilages

2019 ◽  
Author(s):  
B. Y. Santosh Kumar ◽  
Arun M. Isloor ◽  
G. C. Mohan Kumar
Keyword(s):  
Polyvinyl Alcohol ◽  
Viscoelastic Behavior ◽  
Composite Hydrogel ◽  
Articular Cartilages

Fast self-healing multifunctional polyvinyl alcohol nano-organic composite hydrogel as building blocks for highly sensitive strain/pressure sensors

2021 ◽  
Author(s):  
Wenhao Zhao ◽  
Dongzhi Zhang ◽  
Yan Yang ◽  
Chen Du ◽  
Bao Zhang
Keyword(s):  
Polyvinyl Alcohol ◽  
Human Computer Interaction ◽  
Pressure Sensors ◽  
Building Blocks ◽  
Composite Hydrogel ◽  
Sensitive Strain ◽  
Self Healing ◽  
Wearable Sensor ◽  
Hybrid Hydrogel ◽  
Highly Sensitive

The conductive and biocompatible hybrid hydrogel was successfully assembled into an adhesive, flexible wearable sensor for ultra-sensitive human-computer interaction and smart detection, which holds excellent self-healing capability. This conductive, repairable...

Dynamic and creep analysis of polyvinyl alcohol based films blended with starch and protein

2018 ◽  
Vol 39 (1) ◽  
pp. 35-47 ◽  
Author(s):  
Naman Jain ◽  
Vinay K. Singh ◽  
Sakshi Chauhan
Keyword(s):  
Polyvinyl Alcohol ◽  
Moisture Absorption ◽  
Viscoelastic Behavior ◽  
Mechanical Analysis ◽  
Cross Linking ◽  
Mechanical And Thermal Properties ◽  
Blend Films ◽  
Creep And Recovery ◽  
Degradation Temperature ◽  
Creep Analysis

Abstract The present study focuses on the fabrication and analyses of polyvinyl alcohol (PVA) based films blended with polymers, such as starch and protein. The aim is to improve the moisture absorption, solubility, mechanical and thermal properties of PVA by blending it with various polymers. The thermal cross-linking of the films has been studied by heating the films at 120°C for 4 h. The result shows that PVA was completely soluble in water, while post-blending solubility and moisture absorption of blended films decreased. The tensile strength of blended films was significantly higher (4%–29%) as compared to neat PVA, while thermally cross-linked films showed much higher strength (8%–174%). Blended films were characterized using Fourier transform infrared spectroscopy (FTIR) to confirm the formation of hydrogen bonds. Thermogravimetric analysis showed the increase in degradation temperature post-blending as compared to neat PVA. The viscoelastic behavior of the material as well as glass transition temperature was studied using dynamic mechanical analysis. Creep and recovery behavior were examined to study the effect of stress and temperature on creep strain. The biodegradability of the blended films was increased post-blending. This study showed that PVA based blend films can replace non-biodegradable plastics and hence are necessary for the development of environmentally friendly materials.

Preparation and performance investigation of polydimethylsiloxane microsphere/polyvinyl alcohol composite hydrogel

2018 ◽  
Vol 228 ◽  
pp. 399-402 ◽  
Author(s):  
Haining Wang ◽  
Fu Wang ◽  
Xiuqi Li ◽  
Xingping Peng ◽  
Zhipeng Ci ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Composite Hydrogel ◽  
And Performance

Preparation, properties and formation mechanism of cellulose/polyvinyl alcohol bio-composite hydrogel membranes

2017 ◽  
Vol 41 (14) ◽  
pp. 6564-6573 ◽  
Author(s):  
Huafeng Peng ◽  
Shaopeng Wang ◽  
Hongyao Xu ◽  
Xingwu Hao
Keyword(s):  
Polyvinyl Alcohol ◽  
Formation Mechanism ◽  
Hydrophobic Interactions ◽  
Composite Hydrogel ◽  
Hydrogel Membranes

Aggregate sheets formed by hydrophobic interactions of cellulose act as physical junctions in the cellulose/polyvinyl alcohol composite hydrogel.

Double‐network polyvinyl alcohol composite hydrogel with self‐healing and low friction

2021 ◽  
pp. 51563
Author(s):  
Zhouqiang Zhang ◽  
Zishuo Ye ◽  
Feng Hu ◽  
Wenbo Wang ◽  
Shoujing Zhang ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Composite Hydrogel ◽  
Self Healing ◽  
Low Friction ◽  
Double Network

High strength and bioactivity polyvinyl alcohol/collagen composite hydrogel with tannic acid as cross‐linker

2020 ◽  
Author(s):  
Zhongxiang Bai ◽  
Tianyou Wang ◽  
Xin Zheng ◽  
Yanping Huang ◽  
Yining Chen ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Tannic Acid ◽  
High Strength ◽  
Composite Hydrogel ◽  
Cross Linker

Biomineralization Properties of Polyvinyl Alcohol/Bioglass Biocomposite Hydrogels

2008 ◽  
Vol 368-372 ◽  
pp. 1218-1220
Author(s):  
Ying Jun Wang ◽  
Hong Xu ◽  
Li Ren ◽  
Yu Dong Zheng ◽  
Xiao Feng Chen
Keyword(s):  
Infrared Spectroscopy ◽  
Polyvinyl Alcohol ◽  
Composite Hydrogel ◽  
Fourier Transformed Infrared Spectroscopy ◽  
Active Fixation ◽  
Sbf Solution

In order to form the firm active fixation with the adjacent bone, a new kind of bioactive composite hydrogel was prepared as calcic layer of cartilage with polyvinyl alcohol (PVA) and bioglass (BG). The biomineralization properties of the PVA/BG biocomposite hydrogel were studied through Fourier transformed infrared spectroscopy, XRD and SEM with EDX. Results showed that hydroxylcarbonateapatite was formed on the surface of the PVA/BG biocomposite hydrogel after the biocomposite hydrogel soaked into SBF solution. The composite possesses good mineralization properties and could form good firm active fixation with the adjacent bone.

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