Temperature-Sensitive Simultaneous Interpenetrating Polymeric Networks With Improved Mechanical Properties and Shrinking Kinetics

2009 ◽  
Vol 11 (3) ◽  
pp. B12-B19 ◽  
Author(s):  
Jian-Tao Zhang ◽  
Mahendra Thunga ◽  
Silvia Petersen ◽  
Rahila Bhat ◽  
Xiangli Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Temperature Sensitive ◽  
Polymeric Networks ◽  
Interpenetrating Polymeric Networks

Biocompatible interpenetrating polymeric networks in hydrogel state comprised from jellyfish collagen and polyurethane

2021 ◽  
Vol 28 (8) ◽  
Author(s):  
María I. León-Campos ◽  
Jesús A. Claudio-Rizo ◽  
Nayeli Rodriguez-Fuentes ◽  
Denis A. Cabrera-Munguía ◽  
Juan J. Becerra-Rodriguez ◽  
...  
Keyword(s):  
Polymeric Networks ◽  
Interpenetrating Polymeric Networks

Semi-interpenetrating polymeric networks based on poly(dimethylsiloxane)-chitosan-poly(vinyl alcohol) crosslinked with genipin with possible use in biomedical applications

2021 ◽  
Vol 56 (9) ◽  
pp. 5936-5955
Author(s):  
J. A. Benítez-Martínez ◽  
I. M. Garnica-Palafox ◽  
G. Vázquez-Victorio ◽  
M. Hautefeuille ◽  
F. M. Sánchez-Arévalo
Keyword(s):  
Vinyl Alcohol ◽  
Biomedical Applications ◽  
Poly Vinyl Alcohol ◽  
Polymeric Networks ◽  
Interpenetrating Polymeric Networks

scholarly journals Smart Hydrogel Bilayers Prepared by Irradiation

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1753
Author(s):  
Weixian Huo ◽  
Heng An ◽  
Shuquan Chang ◽  
Shengsheng Yang ◽  
Yin Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Gamma Radiation ◽  
Antibacterial Properties ◽  
Cross Linking ◽  
Temperature Sensitive ◽  
Temperature Changes ◽  
Smart Hydrogel ◽  
Isopropyl Acrylamide ◽  
Hydrogel Synthesis ◽  
Potential Applications

Environment-responsive hydrogel actuators have attracted tremendous attention due to their intriguing properties. Gamma radiation has been considered as a green cross-linking process for hydrogel synthesis, as toxic cross-linking agents and initiators were not required. In this work, chitosan/agar/P(N-isopropyl acrylamide-co-acrylamide) (CS/agar/P(NIPAM-co-AM)) and CS/agar/Montmorillonite (MMT)/PNIPAM temperature-sensitive hydrogel bilayers were synthesized via gamma radiation at room temperature. The mechanical properties and temperature sensitivity of hydrogels under different agar content and irradiation doses were explored. The enhancement of the mechanical properties of the composite hydrogel can be attributed to the presence of agar and MMT. Due to the different temperature sensitivities provided by the two layers of hydrogel, they can move autonomously and act as a flexible gripper as the temperature changes. Thanks to the antibacterial properties of the hydrogel, their storage time and service life may be improved. The as prepared hydrogel bilayers have potential applications in control devices, soft robots, artificial muscles and other fields.

Some properties of intermediate regions in interpenetrating polymeric networks

1977 ◽  
Vol 15 (2) ◽  
pp. 427-432 ◽  
Author(s):  
Yu. S. Lipatov ◽  
T. S. Chramova ◽  
L. M. Sergeeva ◽  
L. V. Karabanova
Keyword(s):  
Polymeric Networks ◽  
Interpenetrating Polymeric Networks

scholarly journals Fabrication and Characterization of Wrapped Metal Yarns-based Fabric Temperature Sensors

Polymers ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1549
Author(s):  
Qian Yang ◽  
Xi Wang ◽  
Xin Ding ◽  
Qiao Li
Keyword(s):  
Mechanical Properties ◽  
Body Temperature ◽  
Heat Source ◽  
Human Body ◽  
Temperature Sensors ◽  
Temperature Sensitive ◽  
Maximum Strain ◽  
Human Body Temperature ◽  
Fabrication And Characterization

Textile temperature sensors are highly in demanded keep a real-time and accurate track of human body temperature for identification of healthy conditions or clinical diagnosis. Among various materials for textile temperature sensors, temperature-sensitive metal fibers have highest precision. However, those metal fibers are mechanically too weak, and break constantly during the weaving process. To enhance the mechanical strength of the metal fibers, this paper proposes to make wrapped metal fibers using wrapping technology, and characterize the effect of wrapped metal yarns on both mechanical properties and sensing behaviors. The wrapped yarns were woven into fabrics, forming the fabric temperature sensors. Results show that strength and maximum strain of the wrapped yarns are 2.69 and 1.82 times of pure Pt fibers. The response time of fabric temperature sensors using wrapped yarns was observed as 0.78 s and 1.1 s longer compared to that using Pt fibers when front and back sides contacted heat source, respectively. It is recommended that the wrapping method should be implemented for the protection of Pt fibers in fabric temperature sensors.

Sign in / Sign up

Export Citation Format

Share Document