纳米复合水凝胶AgNPs@Gel的制备及电场敏感性能研究  

Study on the Preparation and Electric Field Sensitivity of Nanocomposite Hydrogel AgNPs@Gel

作　　者：陈汝盼[1,2] 张青海 欧阳娜[1,2] CHEN Rupan;ZHANG Qinghai;OUYANG Na(College of New Materials and Shoes&Clothing Engineering,Liming Vocational University,Quanzhou 362000,China;Advanced polymer materials Fujian University Applied Technology Collaborative Innovation Center,Quanzhou 362000,China)

机构地区：[1]黎明职业大学新材料与鞋服工程学院,福建泉州362000 [2]先进高分子材料福建省高校应用技术协同创新中心,福建泉州362000

出　　处：《广东轻工职业技术学院学报》2023年第6期6-11,共6页Journal of Guangdong Industry Polytechnic

基　　金：福建省中青年教师教育科研资助项目(JAT220705)。

摘　　要：以P(AMPS-co-DMAA)水凝胶为载体,采用原位还原法制备纳米复合水凝胶AgNPs@Gel,并研究AgNPs@Gel的溶胀性能和电场敏感性能。结果表明,随着AgNO3浓度的增加,AgNPs@Gel的平衡溶胀度减小。消溶胀速率则增大,失水率增加。当溶液中NaCl浓度小于水凝胶聚离子浓度时,水凝胶溶胀,并向阴极偏转;反之,水凝胶消溶胀,并向阳极偏转。随着AgNO3浓度及电压的增加,水凝胶的消溶胀速率增加,保水率降低,且向阳极偏转,偏转速率及偏转角度均增加。AgNPs@Gel因其具备智能水凝胶的电场敏感性和纳米银粒子的特性,具有很好的应用前景。Using P(AMPS-co-DMAA)hydrogel as the carrier,nanocomposite hydrogel AgNPs@Gel was prepared by in-situ reduction method,and the swelling properties and electric field sensitivity properties of AgNPs@Gel were studied.The results show that as the AgNO3 concentration increases,the equilibrium swelling degree of AgNPs@Gel decreases.The deswelling rate increases and the water loss rate increases.When the NaCl concentration in the solution is less than the polyion concentration of the hydrogel,the hydrogel swells and deflects toward the cathode;conversely,the hydrogel deswells and deflects toward the anode.As the AgNO3 concentration and voltage increase,the deswelling rate of the hydrogel increases,the water retention rate decreases,and it deflects toward the anode,with both the deflection rate and deflection angle increasing.AgNPs@Gel has the electric field sensitivity of smart hydrogel and the characteristics of silver nanoparticles,and has good application prospects.

关 键 词：纳米银 复合水凝胶 溶胀 电场敏感 

分 类 号：O63[理学—高分子化学] O643.3[理学—化学]