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用傅立叶变换红外光谱仪研究复合树脂的双键转化度
引用本文:王军 成德基. 用傅立叶变换红外光谱仪研究复合树脂的双键转化度[J]. 中华口腔医学杂志, 1997, 32(5): 294-296
作者姓名:王军 成德基
作者单位:解放军第359医院口腔科(王军),通化人民医院口腔科(成德基),第四军医大学口腔医学院(施长溪)
摘    要:
为了研究牙科复合树脂的聚合,采用傅立叶变换红外(Fouriertransforminfrared,FTIR)光谱仪测定8种牙科复合树脂的双键转化度并比较了压片制样法和薄膜制样法对转化度的影响。结果发现,树脂的双键转化度在45%~74%之间;可见光固化树脂的转化度高于化学固化树脂者。在光固化树脂中,混合填料树脂的转化度高于超微填料树脂者,粘接辅助剂的转化度最高。对光固化树脂而言,压片制样法所测得的转化度值高于用薄膜制样法;而在化学固化树脂,用二种制样方法所测得的转化度值相同。本研究结果可供临床应用复合树脂参考。

关 键 词:牙科复合树脂  牙科材料  红外光谱

Study on conversion degree of double bonds of dental composites by Fourier transform infrared spectroscope
Wang Jun,Cheng Deji,Shi Changxi. Stomatological. Study on conversion degree of double bonds of dental composites by Fourier transform infrared spectroscope[J]. Chinese journal of stomatology, 1997, 32(5): 294-296
Authors:Wang Jun  Cheng Deji  Shi Changxi. Stomatological
Affiliation:Stomatological Department of No. 359 Hospital of PLA, Zhenjiang 212001.
Abstract:
Conversion degrees (CDs) of double bonds of 8 dental composites were measured by Fourier transform infrared spectroscope. Also, effects of disc sampling method and film sampling method on CD were compared. The results showed that CDs of 8 composites ranged from 45% to 75%. CDs of visible light cured (VLC) composites were higher than those of chemically cured (CC) ones. In VLC composites, those with hybrid fillers had higher CDs than those with superfine fillers. In VLC composites, CDs obtained by disc sampoling method were higher than by film sampling method; in CC composites, there were no differences between CDs obtained by both sampling methods.
Keywords:Dental composites Dental material Infrared spectroscopy  
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