We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
PVA/Agar Interpenetrating Network Hydrogel with Fast Healing, High Strength, Antifreeze, and Water Retention.
- Authors
Han, Xin; Li, Mengyu; Fan, Zewen; Zhang, Yu; Zhang, Huihui; Li, Qiaoling
- Abstract
Traditional self‐healing hydrogels have great application prospects in biological engineering because of their extremely high water content, but their durability cannot be easily guaranteed. Therefore, developing a rapid self‐healing hydrogel with long‐lasting water retention capacity is still a significant challenge. A high‐strength and fast self‐healing hydrogel with an interpenetrating double network based on polyvinyl alcohol/agar‐ethylene glycol (PVA/agar‐EG) is proposed. Polyvinyl alcohol (PVA) and agar are designed for the construction of the interpenetrating network. Furthermore, the introduction of a borate‐bonding dynamic action mode affords the hydrogel with extraordinary mechanical strength and rapid self‐healing. The addition of EG as a traveling solvent enables the sample to retain water and prevents freezing in harsh environments, including at high temperatures of 80 °C and extremely low temperatures of −40 °C. Additionally, owing to the intelligent remolding ability of the PVA/agar‐EG hydrogel, the material can be recycled to prolong the service life of the hydrogel. Overall, the PVA/agar‐EG hydrogel developed in this study can provide a new general strategy for the development of intelligent self‐healing devices, and hydrogels can be applied in complex environmental engineering.
- Subjects
AGAR; BIOENGINEERING; ENVIRONMENTAL engineering; ANTIFREEZE solutions; POLYVINYL alcohol; SERVICE life
- Publication
Macromolecular Chemistry & Physics, 2020, Vol 221, Issue 22, p1
- ISSN
1022-1352
- Publication type
Article
- DOI
10.1002/macp.202000237