激光杂志
激光雜誌
격광잡지
LASER JOURNAL
2012年
3期
10-12
,共3页
光与物质相互作用%准分子激光%表面改性%高分子聚合物%聚四氟乙烯
光與物質相互作用%準分子激光%錶麵改性%高分子聚閤物%聚四氟乙烯
광여물질상호작용%준분자격광%표면개성%고분자취합물%취사불을희
interaction between light and matter%excimer laser%surface modification%high polymers%gl'FE
分别在大气和氮气背景下将波长248nm的KrF准分子激光垂直辐照到聚四氟乙烯（册）材料的表面，并利用扫描电子显微镜、X射线光电子能谱仪和拉曼光谱仪对辐照前后样品表面形貌及化学结构的变化进行比较分析。SEM测试结果表明激光照射后FIFE的表面出现孔状结构使得粗糙度明显增加，表面形貌的改变与激光照射到样品上的能量密度有较大关系。通过对照射前后的XPS谱进行比较，发现激光辐照使样品表面引入了极性的含氧基团并且照射后氟的含量明显减少。此外，通过Roman谱分析发现准分子激光照射后样品表面出现了C=C结构。
分彆在大氣和氮氣揹景下將波長248nm的KrF準分子激光垂直輻照到聚四氟乙烯（冊）材料的錶麵，併利用掃描電子顯微鏡、X射線光電子能譜儀和拉曼光譜儀對輻照前後樣品錶麵形貌及化學結構的變化進行比較分析。SEM測試結果錶明激光照射後FIFE的錶麵齣現孔狀結構使得粗糙度明顯增加，錶麵形貌的改變與激光照射到樣品上的能量密度有較大關繫。通過對照射前後的XPS譜進行比較，髮現激光輻照使樣品錶麵引入瞭極性的含氧基糰併且照射後氟的含量明顯減少。此外，通過Roman譜分析髮現準分子激光照射後樣品錶麵齣現瞭C=C結構。
분별재대기화담기배경하장파장248nm적KrF준분자격광수직복조도취사불을희（책）재료적표면，병이용소묘전자현미경、X사선광전자능보의화랍만광보의대복조전후양품표면형모급화학결구적변화진행비교분석。SEM측시결과표명격광조사후FIFE적표면출현공상결구사득조조도명현증가，표면형모적개변여격광조사도양품상적능량밀도유교대관계。통과대조사전후적XPS보진행비교，발현격광복조사양품표면인입료겁성적함양기단병차조사후불적함량명현감소。차외，통과Roman보분석발현준분자격광조사후양품표면출현료C=C결구。
The surface of PTFE is vertically irradiated by KrF excimer laser with the wavelength of 248nm, and the experiment is completed in atmosphere and nitrogen background. The treated PTFE is analyzed by virtual of SEM （ scanning electron microscope ）, XPS （ X - ray photoelectron spectroscopy ） and Ranmn spectrum. The results of SEM indicate that the surface roughness of PTFE increases after irradiation which is related to laser energy. Through the contrast of XPS before and after irradiation,one can fred the polarity oxygen groups are introduced and the proportion of Fdecreases obviously. In addition to these, the result of Raman spectrum shows the C = C appears after the laser irradiation.
