离子液体改性白炭黑及性能表征
发布时间：2018-08-07 11:16
【摘要】：采用离子液体1-烯丙基-3-甲基氯化咪唑(AMI)改性白炭黑(SiO_2)。通过傅里叶红外光谱(FT-IR),X射线衍射(XRD),X射线光电子能谱(XPS),热失重分析仪(TGA),扫描电镜(SEM),接触角仪,BET比表面积和孔径分析仪,对改性前后白炭黑的微观结构以及性能进行表征。结果表明,经AMI改性后,白炭黑粒子间的相互作用明显减小,团聚倾向减弱,在橡胶复合材料基体中的分散性提高。AMI改性白炭黑疏水性增强,接触角由12.7°增加到80.5°,比表面积由67.84 cm2/g增加到124.28 cm2/g。改性前后,白炭黑晶型结构变化不大,仍为无定形态。
[Abstract]:Silica (SiO_2) was modified by ionic liquid 1-allyl-3-methyl imidazole chloride (AMI). The microstructure and properties of silica before and after modification were characterized by Fourier transform infrared (FT-IR) X-ray diffraction (FT-IR) (XRD) X-ray photoelectron spectroscopy (XPS),) thermogravimetric analysis (TGA),) scanning electron microscope (SEM) (SEM), contact angle analyzer (SEM),) surface area and pore size analyzer. The results showed that the interaction between silica particles was obviously decreased and the agglomeration tendency was weakened after modified with AMI. The dispersion of silica modified by AMI was improved and the hydrophobicity of modified silica was enhanced. The contact angle increased from 12.7 掳to 80.5 掳, and the specific surface area increased from 67.84 cm2/g to 124.28 cm ~ 2 / g. Before and after modification, the crystal structure of silica changed little and remained amorphous.
【作者单位】： 贵州大学材料与冶金学院;贵州大学贵州省橡胶复合材料工程实验室;
【基金】：国家自然科学基金(51663003) 贵州大学研究生教育创新基地(CXJD[2014]008)
【分类号】：TQ127.2
本文编号：2169851
[Abstract]:Silica (SiO_2) was modified by ionic liquid 1-allyl-3-methyl imidazole chloride (AMI). The microstructure and properties of silica before and after modification were characterized by Fourier transform infrared (FT-IR) X-ray diffraction (FT-IR) (XRD) X-ray photoelectron spectroscopy (XPS),) thermogravimetric analysis (TGA),) scanning electron microscope (SEM) (SEM), contact angle analyzer (SEM),) surface area and pore size analyzer. The results showed that the interaction between silica particles was obviously decreased and the agglomeration tendency was weakened after modified with AMI. The dispersion of silica modified by AMI was improved and the hydrophobicity of modified silica was enhanced. The contact angle increased from 12.7 掳to 80.5 掳, and the specific surface area increased from 67.84 cm2/g to 124.28 cm ~ 2 / g. Before and after modification, the crystal structure of silica changed little and remained amorphous.
【作者单位】： 贵州大学材料与冶金学院;贵州大学贵州省橡胶复合材料工程实验室;
【基金】：国家自然科学基金(51663003) 贵州大学研究生教育创新基地(CXJD[2014]008)
【分类号】：TQ127.2
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