一种高强度的纳米甲壳素/聚丙烯酰胺/醋酸锌复合导电水凝胶及其制备方法

• Format: Patent
• Language: Chinese
• Published: 29.03.2022
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

本发明公开了一种高强度的纳米甲壳素/聚丙烯酰胺/醋酸锌复合导电水凝胶及其制备方法。该方法包括：(1)制备纳米甲壳素；(2)将丙烯酰胺、醋酸锌、交联剂和引发剂溶于去离子水中，再滴加醋酸和氢氧化钠溶液调节溶液的pH值为6-7，得到前驱体溶液；(3)将纳米甲壳素加入到前驱体溶液中，超声均匀后聚合，得到所述复合导电水凝胶。该方法反应条件温和，制备过程简单快捷、能耗小，制得的水凝胶具有良好的机械强度。本发明以天然可再生的甲壳素为原料，制得一种机械强度大、抗疲劳性能好、生物相容性高、生物可降解性好和具有导电性的水凝胶，其在生物医药新材料领域如柔性电子皮肤、软体驱动器、组织工程等方面有广泛的应用前景。 The invention discloses a high-strength nano chitin/polyacrylamide/zinc acetate composite conductive hydrogel and a preparation method thereof. The method comprises the following steps: (1) preparingnano chitin; (2) dissolving acrylamide, zinc acetate, a cross-linking agent and an initiator in deionized water, and dropwise adding acetic acid and a sodium hydroxide solution to adjust the pH valueof the solution to 6-7, so as to obtain a precursor solution; and (3) adding nano chitin into the precursor solution, and carrying out uniform ultrasonic treatment and then polymerization to obtain the composite conductive hydrogel. The method has the advantages of mild reaction conditions, simple and fast preparation process