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In this study, we prepared a novel triple-network (TN) structure hydrogel composed of polyacrylic acid (PAA), agar and polyvinyl alcohol (PVA). The obtained TN hydrogel has a superior mechanical property as well as self-healing property feature. In the TN hydrogel system, PAA-Fe3+ polymer mainly providing hydrogel self-healing properties by the ionic coordinates between COO− and Fe3+ as the first...
We recently proposed and demonstrated a novel strategy to improve mechanical strength by designing triple-network (TN) structure. The hydrogel composed of polyacrylamide (PAM), gelatin (Gela) and polyvinyl alcohol (PVA) was prepared by a simple one-pot method of copolymerization, cooling and freezing/thawing. The PAM/Gela/PVA hydrogels with 2% Gela and 8% PVA could achieve high mechanical properties,...
Novel antibacterial double-network (DN) hydrogels with superior mechanical and self-healing properties are developed via the UV-initiated copolymerization of polyacrylic acid (PAA)-grafted quaternized cellulose (QCE) and polyvinyl alcohol (PVA). The QCE functioned as an antibacterial agent, resulting in excellent antibacterial capability (antibacterial rate >93%). The hydrogels are thus protected...
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