| 共沸蒸馏法制备表面化学改性氢氧化镁纳米颗粒 |
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| 引用本文： | 李宾杰,徐翔民,张予东,丁涛. 共沸蒸馏法制备表面化学改性氢氧化镁纳米颗粒[J]. 应用化学, 2014, 31(8): 971-976. DOI: 10.3724/SP.J.1095.2014.300453 |
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| 作者姓名： | 李宾杰 徐翔民 张予东 丁涛 |
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| 作者单位： | (河南大学1.医学院;2.河南省高校阻燃材料工程技术研究中心 开封 475004) |
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| 基金项目： | 河南省教育厅重点攻关项目(082102270003);河南省产学研合作项目(高性能阻燃抗静电聚甲醛的研究开发,132107000006)~~ |
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| 摘 要： | 首次将表面改性剂如硬脂酸、硬脂酸锌或稀土偶联剂加入到传统的共沸蒸馏体系中，使Mg(OH)2纳米颗粒的表面改性和干燥过程同时完成。 通过 XRD、TEM、FT-IR、TG和CAM（接触角测试）等技术手段对样品的结构、形貌和性质进行了表征。 结果表明，表面改性剂不但能够和Mg(OH)2纳米颗粒的表面的OH-离子发生化学反应形成表面修饰层, 减少硬团聚现象，而且还使纳米颗粒表面由亲水性变为疏水性。 另外，对共沸蒸馏法制备表面改性纳米颗粒的机理进行了讨论，为纳米颗粒表面改性提供了一种新思路。
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| 关 键 词： | 共沸蒸馏 表面改性 氢氧化镁 制备 |
| 收稿时间： | 2013-09-06 |
| 修稿时间： | 2013-12-17 |
Preparation of Surface Chemical Modified Magnesium Hydroxide Nanoparticles via Azeotropic Distillation Method |
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| LI Binjie,XU Xiangmin,ZHANG Yudong,DING Tao. Preparation of Surface Chemical Modified Magnesium Hydroxide Nanoparticles via Azeotropic Distillation Method[J]. Chinese Journal of Applied Chemistry, 2014, 31(8): 971-976. DOI: 10.3724/SP.J.1095.2014.300453 |
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| Authors: | LI Binjie XU Xiangmin ZHANG Yudong DING Tao |
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| Affiliation: | (1.Medical College;2.Engineering Technology Research Center of ;Flame Retardant Materials,University of Henan,Kaifeng 475004,China) |
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| Abstract: | In conventional azeotropic distillation process, surface modifiers such as stearic acid(St), zinc stearate(ZnSt) and rare earth coupling agent(WOT) were firstly introduced to realize simultaneous drying and surface modification of Mg(OH)2 nanoparticles(NPs). The structure, morphologies and properties of surface modified Mg(OH)2 NPs were characterized by XRD, TEM, FT-IR, TG, CAM(contact angle measurement). The results indicate that surface modifiers not only react with the exterior hydroxyls of Mg(OH)2 NPs to form surface modified layer via chemical bond to weaken the possibility of hard agglomeration, but also change the surface character of Mg(OH)2 NPs from hydrophilicity to hydrophobicity. In addition, the surface modification mechanism in azeotropic distillation was also discussed. This study provides a novel surface modified route for other nanoparticles. |
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| Keywords: | azeotropic distillation surface modified magnesium hydroxide preparation |
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