TPN-十二烷基磺酸钠-层状双金属氢氧化物纳米杂化物的制备及防霉性能研究

doi:10.3724/SP.J.1077.2014.13438

无机材料学报 ›› 2014, Vol. 29 ›› Issue (5): 515-522.DOI: 10.3724/SP.J.1077.2014.13438

TPN-十二烷基磺酸钠-层状双金属氢氧化物纳米杂化物的制备及防霉性能研究

李彦云, 李松梅, 刘建华, 于美

(空天先进材料与服役教育部重点实验室, 北京航空航天大学材料科学与工程学院, 北京 100191)

收稿日期:2013-08-28 修回日期:2013-10-08 出版日期:2014-05-20 网络出版日期:2014-04-24
作者简介:李彦云(1988-), 女, 硕士研究生. E-mail: liyanyun902@163.com
基金资助:
国家航空科学基金(20110251003)

Preparation and Anti-mildew Properties of TPN-SDS-layered Double Hydroxide Nanohybrids

LI Yan-Yun, LI Song-Mei, LIU Jian-Hua, YU Mei

(Key Laboratory of Aerospace advanced Materials and Performance, Ministry of Education, School of Materials Science and Engineering, Beihang University, Beijing 100191, China)

Received:2013-08-28 Revised:2013-10-08 Published:2014-05-20 Online:2014-04-24
About author:LI Yan-Yun. E-mail: liyanyun902@163.com
Supported by:
National Aviation Science Foundation(20110251003)

摘要/Abstract

摘要： 实验制备了MgAl-TPN-十二烷基磺酸钠-层状双金属氢氧化物(MgAl-TPN-SDS-LDHs, 以下简称TPN-SDS-LDHs)纳米杂化物, 在醇酸树脂涂层中实现了缓慢且持续释放, 提高了TPN的防霉持久性。采用十二烷基磺酸钠(SDS)将非离子型、难溶性有机防霉剂2,4,5,6-四氯-1,3-苯二甲腈(TPN)包裹成阴离子表面活性剂胶束, 然后利用共沉淀法插层到MgAl-LDHs主体层间。利用X射线衍射、傅里叶红外光谱、扫描电子显微镜、透射电子显微镜和紫外?可见吸收光谱进行表征。结果表明: TPN插层成功, 在杂化物中的载药量为34.49%, 杂化物呈典型层状形貌。在乙酸丁酯中该纳米杂化物缓慢释放, 符合准二级动力学方程。将TPN-SDS-LDHs纳米杂化物应用于醇酸树脂涂层中并进行霉菌试验, 结果表明添加TPN-SDS-LDHs纳米杂化物涂层的防霉持久性能优于添加TPN涂层。

关键词: 层状双金属氢氧化物, 十二烷基磺酸钠, 百菌清, 缓释, 防霉

Abstract: MgAl-TPN-SDS-LDHs nanohybrids were synthesized by coprecipitation process. The anti-mildew durability of TPN were improved when nanohybrids was introduced in alkyd resin coating due to inhibition release rate of TPN. The non-ionic, poorly water-soluble chlorothalonil (TPN) was firstly incorporated into micelles derived from negatively charged surfactants-sodium dodecyl sulfate (SDS). The negatively charged micelles were then encapsulated in nanoparticles of MgAl-layered double hydroxides. The as-prepared nanohybrids were characterized by X-ray diffraction, Fourier transform infrared spectroscope, scanning electron microscope, transmission electron microscope and UV-VIS absorption spectrum. The results showed that MgAl-TPN-SDS-LDHs nanohybrids were successfully prepared, with TPN loading rate at 34.49wt%. The release kinetic of TPN from TPN-SDS-LDHs nanohybrids was investigated in butyl acetate and the release process fitted the pseudo-second-order kinetic equation. The alkyd resin coating containing TPN-SDS-LDHs nanohybrids showed better anti-mildew durability than coating containing TPN in fungus test.

Key words: layered double hydroxides, sodium dodecyl sulfate, chlorothalonil, sustained-release, anti-mildew

中图分类号:

TB34
TG172

李彦云, 李松梅, 刘建华, 于美. TPN-十二烷基磺酸钠-层状双金属氢氧化物纳米杂化物的制备及防霉性能研究[J]. 无机材料学报, 2014, 29(5): 515-522.

LI Yan-Yun, LI Song-Mei, LIU Jian-Hua, YU Mei. Preparation and Anti-mildew Properties of TPN-SDS-layered Double Hydroxide Nanohybrids[J]. Journal of Inorganic Materials, 2014, 29(5): 515-522.

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TPN-十二烷基磺酸钠-层状双金属氢氧化物纳米杂化物的制备及防霉性能研究

Preparation and Anti-mildew Properties of TPN-SDS-layered Double Hydroxide Nanohybrids

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