CAJ | 학술논문

生物用薄膜双向拉伸聚丙烯（BOPP）表面的惰性特性影响了其更为广泛的应用,为解决这一问题,需要在不改变薄膜主体特性的情况下对其表面特性进行改性。采用大气压下He和N2辉光放电等离子体对该薄膜进行了表面改性,并研究了等离子体各种参数对表面改性的影响。通过对该等离子体放电特性和光谱特性的研究,验证了其低温和均匀特性。大肠杆菌E.coli K12在等离子体处理后的BOPP表面的粘附性实验表明,N2体积流量和处理时间对BOPP表面改性有重要影响,加入N2的等离子体能提升BOPP膜表面的细菌粘附性。为进一步研究等离子体BOPP表面改性的机理,对等离子体处理后的BOPP进行了接触角测量、X射线光电子能谱（XPS）、原子力显微镜（AFM）分析。分析表明,等离子体改性后薄膜的亲水性、活性化学功能团、表面结构发生了显著变化。
생물용박막쌍향랍신취병희（BOPP）표면적타성특성영향료기경위엄범적응용,위해결저일문제,수요재불개변박막주체특성적정황하대기표면특성진행개성。채용대기압하He화N2휘광방전등리자체대해박막진행료표면개성,병연구료등리자체각충삼수대표면개성적영향。통과대해등리자체방전특성화광보특성적연구,험증료기저온화균균특성。대장간균E.coli K12재등리자체처리후적BOPP표면적점부성실험표명,N2체적류량화처리시간대BOPP표면개성유중요영향,가입N2적등리자체능제승BOPP막표면적세균점부성。위진일보연구등리자체BOPP표면개성적궤리,대등리자체처리후적BOPP진행료접촉각측량、X사선광전자능보（XPS）、원자력현미경（AFM）분석。분석표명,등리자체개성후박막적친수성、활성화학공능단、표면결구발생료현저변화。
The inert surface nature of hi-axially oriented polypropylene （BOPP） prevents its wider applications, so it is desirable to tailor its surface properties without affecting its bulk property. BOPP was modified by atmospheric pressure He and N2 glow discharge. The effect of plasma parameters on the surface modification was investigated. Moreover, the electrical and optical characteristics were studied, indicating that plasmas were low temperature and uniform. The experiment of the attachment of E. coli K12 on the plasma treated BOPP was conducted, showing that N2 flowing rate and treatment time had significant influence on the BOPP surface modification, the attachment of E. coli K12 could be improved by plasmas with adding N2. Contact angle measurement, X-ray photoelectron spectroscopy （XPS） and atomic force microscopy （AFM） were adopted to analyze the polymer surface. It is shown that the hydrophilicity, functional groups and surface morphology of the BOPP surface are significantly modified by the plasmas.