【摘要】 <正> 长期以来,纤维材料需要切成细微粉末才能测得红外光谱。1981年Teramae和Tana-ka采用傅里叶变换红外光声光谱(FTIR-PAS)获得棉花及尼龙纤维的红外光声光谱图,它与常规KBr制样得到的红外光谱图一致。该法不需要复杂制样,具有快速简便、无损样品的优点,所得的光谱图便于计算。其后,有人用此法研究了各种人造纤维和天然纤维性能更多还原

【Abstract】 Forrier transform infrared photoacoustic spectroscopy for untreated and alkali treateddegummed ramie fiber were recorded. It indicated that when the alkali concentrationincreased, the intensity of band near 1430cm^-1assigned to crystalline region of the fibergraually declined, but that for the band near 898cm^-1 assigned to uncrystalline regiongradually inclined. When the alkali concentration was more than 9.0% （w/w）, the area of898cm^-1 band assigned to CH stretching vibration was near constant. Meanwhile, the alkalitreating temperature （20-80℃） and time （30-120min） appeared almost no influence.更多还原