| 二甲基硅油结构及热稳定性 |
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| 引用本文： | 于宏伟,翟桂君,张雨萱,栗亚钊,刘昊雨,刘逸波.二甲基硅油结构及热稳定性[J].上海计量测试,2020,47(1):28-32. |
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| 作者姓名： | 于宏伟 翟桂君 张雨萱 栗亚钊 刘昊雨 刘逸波 |
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| 作者单位： | 石家庄学院化工学院;石家庄学院化工学院;石家庄学院化工学院;石家庄学院化工学院;石家庄学院化工学院;石家庄学院化工学院 |
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| 摘 要： | 采用红外(IR)光谱开展了二甲基硅油的结构研究。实验发现:二甲基硅油主要存在着νasCH3-二甲基硅油、νsCH3-二甲基硅油、δCH3-二甲基硅油、νSi-O-二甲基硅油、ρCH3-二甲基硅油和νSi-C-二甲基硅油等六种红外吸收模式。采用变温红外(TD-IR)光谱进一步开展了二甲基硅油的热稳定性研究。实验发现:在303~523 K温度范围内,随着测定温度的升高,二甲基硅油主要官能团对应的吸收频率及强度均有明显的改变,并进一步研究了其热变机理。
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| 关 键 词： | 二甲基硅油 红外光谱 变温红外光谱 结构 热稳定性 |
Structure and thermal stability study of dimethicone |
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| Yu Hongwei,Zhai Guijun,Zhang Yuxuan,Li Yazhao,Liu Haoyu,Liu Yibo.Structure and thermal stability study of dimethicone[J].Shanghai Meassurement and Testing,2020,47(1):28-32. |
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| Authors: | Yu Hongwei Zhai Guijun Zhang Yuxuan Li Yazhao Liu Haoyu Liu Yibo |
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| Affiliation: | (School of Chemical Engineering,Shijiazhuang University) |
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| Abstract: | The dimethicone molecular structure had been studied by infrared(IR) spectroscopy. The νasCH3-dimethicone, νsCH3-dimethicone, δCH3-dimethicone, νSi-O-dimethicone, ρCH3-dimethicone and νSi-C-dimethicone infrared absorption mode were found also. The dimethicone thermal stability was researched by temperature-dependent infrared(TD-IR) spectroscopy. With the increase of the temperature, the infrared absorption intensity and frequency of dimethicone had changed obviously and the mechanism was discovered also. |
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| Keywords: | dimethicone infrared spectroscopy temperature-dependent infrared spectroscopy structure thermal stability |
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