智能缓蚀剂的制备及其性能研究.docx
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- 智能 缓蚀剂 制备 及其 性能 研究
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1、智能缓蚀剂的制备及其性能研究摘 要具有中空空腔和介孔壳分级结构的二氧化硅在吸附、防腐等领域应用广泛,可实现对缓蚀剂的负载和响应释放。本文首先通过选择性刻蚀法合成中空结构介孔有机(苯)硅纳米球(Ph-HPMO)并制备智能缓蚀剂(Ph-HPMO-MBT);然后采用X射线衍射(XRD)、红外光谱(FT-IR)、热重分析(TGA)等对所制备的纳米材料进行结构、形貌和成分表征;最后进行智能缓蚀剂响应释放实验并采用电化学方法研究其缓蚀性能。结果表明,Ph-HPMO具有嵌入苯环的介孔壳和中空腔组成的分级结构,粒径约350 nm,壳厚约50 nm,孔径约3.3 nm;中性环境下缓蚀剂基本不被释放,酸性环境下被
2、快速释放;溶液中加入该智能缓蚀剂能使铜片阻抗显著增大。本研究对如何高效利用缓蚀剂具有重要指导意义。关键词:中空介孔有机硅;硬模板;选择性刻蚀法;缓蚀剂负载与释放;防腐蚀性能Research of Preparation、Performance for Intelligent InhibitorAbstractsilica has a hierarchical mesoporous structure composed of a hollow cavity and mesoporous shell which is widely used in adsorption, anticorrosion
3、 and other fields, and it can achieve the load and response release of corrosion inhibitor. In this paper, firstly, hollow-structure mesoporous organic (benzene) silicon nanospheres (Ph-HPMO) were synthesized by selective etching method and a smart corrosion inhibitor (Ph-HPMO-MBT) was prepared. The
4、n the structure, morphology and composition of the prepared nanomaterials were characterized by X-ray diffraction (XRD), infrared spectroscopy (FT-IR) and thermogravimetric analysis (TGA). Finally, an intelligent corrosion inhibitor response release experiment was conducted and the corrosion inhibit
5、ion performance was studied using electrochemical methods. The results showed that Ph-HPMO has a hierarchical structure composed of a mesoporous shell embedded in a benzene ring and a hollow cavity, the particle size is about 350 nm, the shell thickness is about 50 nm, and the pore diameter is about
6、 3.3 nm. The corrosion inhibitor is not released in the neutral environment, but released rapidly in the acidic environment. Adding the intelligent corrosion inhibitor to the solution can significantly increase the impedance of the copper sheet. This study has important guiding significance for how
7、to effectively use corrosion inhibitors.Keywords:hollow mesoporous organosilica; Hard template; selective etching method; Corrosion inhibitor loading and release; Anti-corrosion performance目 录第1章 绪论11.1 多孔二氧化硅简介11.1.1 多孔材料11.1.2 介孔二氧化硅21.1.3 介孔有机硅31.2 多孔二氧化硅的制备41.2.1 介孔二氧化硅的制备41.2.2 介孔有机硅的制备61.3 多孔二
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