| 麦饭石负载PVAm复合物的制备及其对梨汁的澄清作用 |
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| 引用本文： | 王毓,夏卉芳,李自丽,陈生科,刘九辉.麦饭石负载PVAm复合物的制备及其对梨汁的澄清作用[J].材料导报,2015,29(14):31-35. |
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| 作者姓名： | 王毓 夏卉芳 李自丽 陈生科 刘九辉 |
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| 作者单位： | 贵州师范学院化学与生命科学学院,贵阳,550018 |
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| 基金项目： | 国家自然科学基金(21464005)；贵州省教厅招标项目(黔教合KY字[2013]166)；贵州省自然科学基金项目(黔科合J字[2013]2245号)；贵州省应用化学特色重点学科(黔教科研发[2012]442号) |
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| 摘 要： | 为了改善麦饭石的吸附性能和使用性能,以N-乙烯基甲酰胺(NVF)为单体,进行自由基聚合制备聚N-乙烯基甲酰胺(PNVF),将PNVF在碱性条件下水解,得到胺化度为98.5%的聚乙烯胺(PVAm),再将PVAm与麦饭石复合,制备出高胺化度麦饭石负载PVAm复合物。通过红外光谱(FTIR)、X射线衍射(XRD)和热重(TG)表征复合物的结构,用分光光度法分析麦饭石负载PVAm复合物对梨汁的澄清效果。结果表明:PVAm成功插入麦饭石层间,扩大了麦饭石的层间距从而提高了吸附性能;麦饭石负载PVAm复合物对梨汁有较好的澄清效果,且明显优于单一麦饭石,最优澄清条件,即麦饭石负载PVAm复合物的用量0.80g/L、澄清时间30min、澄清温度22℃,pH5.2下的透光率为98.7%。
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| 关 键 词： | 麦饭石 PVAm 梨汁 澄清 |
Preparation of PVAm-loaded Medicinal Stone Maifanshi Composite and Its Clarification for Pear Juice |
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| WANG Yu,XIA Huifang,LI Zili,CHEN Shengke and LIU Jiuhui.Preparation of PVAm-loaded Medicinal Stone Maifanshi Composite and Its Clarification for Pear Juice[J].Materials Review,2015,29(14):31-35. |
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| Authors: | WANG Yu XIA Huifang LI Zili CHEN Shengke and LIU Jiuhui |
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| Affiliation: | School of Chemistry and Life Science, Guizhou Normal College, Guiyang 550018,School of Chemistry and Life Science, Guizhou Normal College, Guiyang 550018,School of Chemistry and Life Science, Guizhou Normal College, Guiyang 550018,School of Chemistry and Life Science, Guizhou Normal College, Guiyang 550018 and School of Chemistry and Life Science, Guizhou Normal College, Guiyang 550018 |
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| Abstract: | |
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| Keywords: | Manfanshi PVAm pear juice clarification |
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