聚2-丙烯酰胺-2-甲基丙磺酸/糊化淀粉复合水凝胶的制备和应用研究  

Preparation and application of PAMPS/gelatinized starch composite hydrogels

作　　者：卢云洁 唐慧婧 李泽炜 周士浩 孙永峰 张建明[1] 宗鲁 LU Yunjie;TANG Huijing;LI Zewei;ZHOU Shihao;SUN Yongfeng;ZHANG Jianming;ZONG Lu(Ministry of Education Key Laboratory of Rubber-plastics,Qingdao University of Science&Technology,Qingdao 266042,China;Luxi Group Co.,Ltd.,Liaocheng 252000,Shandong,China;Shandong Xingyu Gloves Co.,Ltd.,Weifang 261502,Shandong,China)

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042 [2]鲁西集团有限公司,山东聊城252000 [3]山东星宇手套有限公司,山东潍坊261502

出　　处：《化学研究》2023年第5期391-397,共7页Chemical Research

基　　金：国家自然科学基金项目(51903134)。

摘　　要：水凝胶是一种由亲水聚合物三维网络结构和大量水组成的新型软物质材料,其优异的生物相容性、性能可调节性和环境适应性,使其在仿生智能材料、生物医学、柔性传感和能源管理等领域有着巨大的应用潜力。然而水凝胶内部存在大量水,具有较低的力学性能,强度差、模量低,且表面湿滑,难以与基体形成有效粘附,这些都限制了水凝胶在软物质材料中的应用。在此,以糊化淀粉与聚2-丙烯酰胺-2-甲基丙磺酸水凝胶复合,制备了一种强韧导电水凝胶。当淀粉的添加量为4%时,所得复合水凝胶的拉伸强度从0.11 MPa提高到0.27 MPa,模量从15 kPa提升到35 kPa,断裂韧性从51 kJ·m^(-2)提升到210 kJ·m^(-2),粘附性能提升幅度接近100%,且具有良好的导电传感能力(3.6 mS·cm^(-1)),在柔性传感领域具有较好的应用前景,这为用于柔性传感的软物质材料设计提供了思路。Hydrogel is a new soft matter material composed of a hydrophilic polymer three-dimensional network structure and a large amount of water.Its excellent biocompatibility,property tunability and environmental adaptability make it a great potential for applications in the fields of bionic smart materials,biomedicine,flexible sensing and energy management.However,the presence of large amounts of water inside the hydrogel,its low mechanical properties,poor strength,low modulus,and slippery surface,which makes it difficult to form effective adhesion with the substrate,have limited the application of hydrogels in soft material materials.Herein,a strong conductive hydrogel was prepared by compounding dextrinized starch with poly-2-acrylamide-2-methylpropanesulfonic acid hydrogel.When the starch was added at 4%,the tensile strength of the resulting composite hydrogel was increased from 0.11 MPa to 0.27 MPa,the modulus from 15 kPa to 35 kPa,the fracture toughness from 51 kJ·m^(-2 )to 210 kJ·m^(-2),and the adhesion performance was improved by nearly 100%,and it has good conductive sensing ability(3.6 mS·cm^(-1))for flexible This provides an idea for the design of soft matter materials for flexible sensing.

关 键 词：水凝胶 淀粉 强韧化 导电性 柔性传感 

分 类 号：TQ427.6[化学工程]