哈尔滨商业大学学报(自然科学版)
哈爾濱商業大學學報(自然科學版)
합이빈상업대학학보(자연과학판)
Journal of Harbin University of Commerce (Natural Sciences Edition)
2015年
5期
620-624
,共5页
同娜%朱长军%张崇辉%张一心
同娜%硃長軍%張崇輝%張一心
동나%주장군%장숭휘%장일심
聚对苯二甲酸乙二酯%酸碱盐处理%拉曼光谱
聚對苯二甲痠乙二酯%痠堿鹽處理%拉曼光譜
취대분이갑산을이지%산감염처리%랍만광보
polyethylene terephthalate%acid,alkaline and salt treatment%Raman spectra
采用拉曼光谱法对聚对苯二甲酸乙二酯纤维的拉曼光谱特性进行研究,对聚对苯二甲酸乙二酯纤维分别进行酸、碱、盐处理,获得酸、碱、盐处理前后纤维的拉曼光谱,并对拉曼光谱的特性进行了分析与比较。结果表明,与未经处理的聚对苯二甲酸乙二酯相比,NaOH处理的PET在波数大于1750 cm-1时强度低于未经处理的PET,酸性染料对聚酯纤维的亲和力比较高,H2 SO4处理的PET拉曼光谱和不经任何处理的PET的拉曼光谱相比,发生明显变化,强度显著减弱。而CuSO4处理的PET拉曼光谱峰值强度明显高于未经处理PET纤维的拉曼光谱峰值强度。表明酸处理能够抑制聚对苯二甲酸乙二酯分子的振动模式,盐处理能够激发聚对苯二甲酸乙二酯分子的振动模式。
採用拉曼光譜法對聚對苯二甲痠乙二酯纖維的拉曼光譜特性進行研究,對聚對苯二甲痠乙二酯纖維分彆進行痠、堿、鹽處理,穫得痠、堿、鹽處理前後纖維的拉曼光譜,併對拉曼光譜的特性進行瞭分析與比較。結果錶明,與未經處理的聚對苯二甲痠乙二酯相比,NaOH處理的PET在波數大于1750 cm-1時彊度低于未經處理的PET,痠性染料對聚酯纖維的親和力比較高,H2 SO4處理的PET拉曼光譜和不經任何處理的PET的拉曼光譜相比,髮生明顯變化,彊度顯著減弱。而CuSO4處理的PET拉曼光譜峰值彊度明顯高于未經處理PET纖維的拉曼光譜峰值彊度。錶明痠處理能夠抑製聚對苯二甲痠乙二酯分子的振動模式,鹽處理能夠激髮聚對苯二甲痠乙二酯分子的振動模式。
채용랍만광보법대취대분이갑산을이지섬유적랍만광보특성진행연구,대취대분이갑산을이지섬유분별진행산、감、염처리,획득산、감、염처리전후섬유적랍만광보,병대랍만광보적특성진행료분석여비교。결과표명,여미경처리적취대분이갑산을이지상비,NaOH처리적PET재파수대우1750 cm-1시강도저우미경처리적PET,산성염료대취지섬유적친화력비교고,H2 SO4처리적PET랍만광보화불경임하처리적PET적랍만광보상비,발생명현변화,강도현저감약。이CuSO4처리적PET랍만광보봉치강도명현고우미경처리PET섬유적랍만광보봉치강도。표명산처리능구억제취대분이갑산을이지분자적진동모식,염처리능구격발취대분이갑산을이지분자적진동모식。
Raman spectrometry was employed to study the characteristics of Raman spectra of polyethylene terephthalate ( PET) , which were treated with sodium hydroxide , sulfuric acid and copper sulfate , respectively .Raman spectra under different conditions were obtained , and the characteristics of the Raman spectra were analyzed .The results show that the intensi-ty of PET treated with sodium hydroxide is lower than that untreated beyond 1 750 cm -1 and the fluorescence background of Raman spectra was decreased .The spectra intensity of PET treated with sulfuric acid was remarkably reduced than that untreated , and the intensity of PET treated with copper sulphate was much higher than that untreated .The molecular vibra-tional mode of PET can be inhibited by sulfuric acid , while the vibrational mode can be trig-gered by copper sulphate .