银离子注入ABS树脂抗菌性能研究  

The antibacterial property of ABS by silver ion implantation

作　　者：李崇[1] 覃礼钊[1] 向友来 梁凯[1] 梁宏[2] 孙佳[1] 程南璞[1] 李春明[3] 王浩琦[1] 

机构地区：[1]西南大学材料与能源学部,重庆400715 [2]北京师范大学核科学与技术学院,北京100875 [3]西南大学动物科技学院,重庆400715

出　　处：《真空》2014年第3期70-74,共5页Vacuum

基　　金：西南大学"国家级大学生创新创业训练"项目(201310635040);西南大学第六届本科生科技创新项目(1223001);射线束技术与材料改性教育部重点实验室开放资助项目(201215);国家自然科学基金资助项目(51171156)

摘　　要：用MEVVA源将银离子注入ABS(Acrylonitrile Butadiene Styrene)树脂表面,研究在注入剂量为1.0×1016ions/cm2、注入能量由5 keV到30 keV材料的抗菌性。通过X射线光电子能谱(XPS)及拉曼(Raman)光谱对样品表面进行了表征,并测试样品的疏水性和抗菌性。结果表明:载能离子导致ABS树脂表面部分化学键断裂,并出现失氢、富碳,而银以离子形式存在其氧化物中;材料表面的接触角变大,由亲水性材料变为疏水性材料;银离子注入后材料具有良好的抗菌性能,抗菌效果随着离子注入能量的增加呈现降低趋势。In this paper, silver ions were implanted into ABS resin surface by MEVVA source. The antibacterial property of the materials was investigated as the implantation dose is1.0×10^16 ions/cm^2 and implantation energy changes from 5 keV to 30 keV. X-Ray photoelectron Spectroscopy （XPS） and Raman spectra measurements were used to analyze the compositions of the surface. Then hydrophobic property and antibacterial property were measured. The results show that the ionic forms of silvers exist in its oxides. Some chemical bonds of modified surface were destroyed by implanted silver ions. The silver implantation makes ABS resin lose hydrogen atoms and surplus carbon atoms, namely, it causes the appearance of carbon-rich layer. Water contact angle was found to be increased by modification, in other words, the modified surface changed from hydrophilicity to hydrophobicity. The experiment indicates that the material possesses excellent antibacterial property after implantation and the antibacterial effect decreases with the increase of implantation energy.

关 键 词：离子注入 抗菌性 ABS树脂 银离子 接触角 

分 类 号：TB34[一般工业技术—材料科学与工程]