大气压等离子体射流功能改性硅树脂的工艺研究  

Study on functional modification of silicone by atmospheric pressure plasma jet

作　　者：任根来 王鹰 王东[1,2] 高丽红[1,2,3] 马壮[1,2,3] 田新春 REN Genlai;WANG Ying;WANG Dong;GAO Lihong;MA Zhuang;TIAN Xinchun(School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China;Tangshan Research Institute,Beijing Institute of Technology,Tangshan 063000,China;Chongqing Innovation Center,Beijing Institute of Technology,Chongqing 401120,China)

机构地区：[1]北京理工大学材料学院,北京100081 [2]北京理工大学唐山研究院,河北唐山063000 [3]北京理工大学重庆创新中心,重庆401120

出　　处：《电镀与涂饰》2024年第1期80-86,共7页Electroplating & Finishing

基　　金：国家自然科学基金青年科学基金项目(52102060);冲击环境材料技术重点实验室基金(WDZC2021-4);国家重点研发计划——中国和白俄罗斯政府间联合研发项目(2022YFE0121200)。

摘　　要：[目的]采用大气压等离子体射流(APPJ)技术在聚二甲基硅氧烷(PDMS)表面产生结构色的方法和机制鲜有报道。[方法]通过对处在拉伸状态的PDMS进行1 min的氩气等离子体处理,然后释放拉应力,获得了具有环形渐变结构色的PDMS。[结果]扫描电镜(SEM)照片揭示,APPJ处理后的PDMS表面生成了周期排列的纳米褶皱结构,且褶皱周期是逐渐变化的。X射线光电子能谱(XPS)分析表明,经APPJ处理的PDMS表面发生了进一步交联和氧化,生成了弹性模量比PDMS更高的氧化硅物质层。可见光吸收和反射光谱分析表明,具有结构色的PDMS对可见光表现出了更低的反射率,而其垂直方向的可见光透过率则无显著改变。[结论]通过APPJ技术能够简单、快速地对有机硅化合物表面进行改性而获得精细结构色,该工艺方法有望满足显示、传感、防伪、功能材料等领域的实际需求。[Introduction]The fabrication of structural colors on polydimethylsiloxane(PDMS)surface by atmospheric pressure plasma jet(APPJ)technology and related mechanism have rarely been reported.[Method]By subjecting the PDMS in a tensile state to argon plasma treatment for 1 minute and then releasing the tensile stress,the surface-modified PDMS exhibits ring-shaped gradient structural color features.[Result]The scanning electron microscopic(SEM)images revealed that the surface of PDMS treated by APPJ has different periodically arranged nanoscale wrinkle structures.The X-ray photoelectron spectroscopic(XPS)analysis indicated that the surface of PDMS was further crosslinked and oxidized after APPJ treatment,where a silicon oxide layer was formed with a higher elastic modulus than PDMS.The visible-light absorption and reflection spectra showed that the PDMS with structural colors exhibits lower reflectivity to visible light,while its visible-light transmittance in the vertical direction changes slightly.[Conclusion]Fine structural colors can be fabricated easily and quickly on the surface of silicone by atmospheric pressure plasma jet technology,which is expected to meet the needs of display,sensing,anti-counterfeiting,functional materials,and other fields.

关 键 词：大气压等离子体射流 硅树脂 结构色 光栅 减反射膜 

分 类 号：TQ321.2[化学工程—合成树脂塑料工业]