High-strength PAMPS-PAM-Gel three-network hydrogel and preparation method thereof

• Main Authors: LI RENJIE, GAO DANGGE, LYU BIN, FU YATONG, REN JINGJING
• Format: Patent
• Language: Chinese; English
• Published: 05.08.2022
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

The invention relates to a high-strength PAMPS-PAM-Gel three-network hydrogel and a preparation method of the high-strength PAMPS-PAM-Gel three-network hydrogel. According to the preparation method disclosed by the invention, the poly 2-acrylamide-2-methylpropanesulfonic acid-polyacrylamide-gelatin three-network hydrogel with high strength is prepared by adopting poly 2-acrylamide-2-methylpropanesulfonic acid microgel as a first network, polyacrylamide as a second network and gelatin as a third network. The poly-2-acrylamide-2-methylpropanesulfonic acid-polyacrylamide dual-network hydrogel is subjected to full covalent crosslinking, so that permanent damage is easily caused after the poly-2-acrylamide-2-methylpropanesulfonic acid-polyacrylamide dual-network hydrogel is subjected to external force. Therefore, the physically-crosslinked gelatin is introduced into the fully-covalently-crosslinked poly (2-acrylamide-2-methylpropanesulfonic acid)-polyacrylamide double-network hydrogel, so that the defect of perman