| 丁文丽,曹翠玲,丁兆娟,吴爱芹,刘爱芹.衰减全反射-傅里叶红外光谱法测试丁腈橡胶的丙烯腈含量[J].橡胶科技,2017,15(4):44-46. |
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| 衰减全反射-傅里叶红外光谱法测试丁腈橡胶的丙烯腈含量 |
| Determination of Bound Acrylonitrile Content of Nitrile Rubber by ATR-FTIR |
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| DOI： |
| 中文关键词: 衰减全反射法 傅里叶变换红外光谱 丁腈橡胶 结合丙烯腈含量 |
| 英文关键词: attenuation total reflection method Fourier transform infrared spectroscopy nitrile rubber bound acrylonitrile content |
| 基金项目: |
| 中图分类号:O657.61；TQ333.7 |
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| 中文摘要: |
| 采用衰减全反射（ATR）-傅里叶变换红外光谱（FTIR）法测试丁腈橡胶（NBR）的结合丙烯腈含量，并以燃烧法测得的结合丙烯腈含量为标准值，绘制FTIR谱特征峰吸光度比值与NBR中结合丙烯腈含量的标准工作曲线。结果表明，FTIR谱中波数为2 240和1 440 cm-1处的特征峰的吸光度比值（A2240/A1440）与NBR中结合丙烯腈含量具有很好的线性关系，根据FTIR谱的A2240/A1440可以计算得到NBR中结合丙烯腈含量。ATR-FTIR法操作简单快捷，测试结果与燃烧法测试结果的误差不大于1.3%，准确度高。 |
| 英文摘要: |
| In this study，the method to determine bound acrylonitrile content of nitrile rubber（NBR） by Fourier transform infrared spectroscopy（FTIR） with attenuation total reflection（ATR） technic was developed.In order to establish the standard working curve，bound acrylonitrile contents were firstly tested by combustion method，and FTIR spectrums of corresponding NBR materials were also obtained.The results showed that the absorbance ratio（A2240/A1440） of characteristic FTIR peak value at 2 240 and 1 440 cm-1 had a good linear relationship with bound acrylonitrile content determined by combustion method.Thus，for an unknown NBR sample，the bound acrylonitrile content could be obtained by using the ratio of A2240/A1440 and a standard working curve.ATR-FTIR method was simple and fast，and the test results were accurate which showed no more than 1.3% deviation from the testing results of combustion method. |
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