Metal Surface Adhesion Promotion for Corrosion Control with Organic/Inorganic Composites
| Autor: | Yu-Hsiang Li, 李宇翔 |
|---|---|
| Rok vydání: | 2013 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 101 An aqueous tannic acid solution is used as steel surface coating primer; This characteristic can form black stablely complex with steel metal. In this experiment, we modify different ratio of UV-Epoxy, TMPTA and Zinc powder as base coat, then we use spin-coating method to spread them on steel metals’ surface. After that we add appropriate amount of Photo-initiator(e.g. 1173) to UV-curing. Exposing in UV light produce free radicals which lead compositions to crosslinking. Then a top coat resins consists of hydrophobicity of UV-reactive UV-PU and a tri-acrylate UV-reactive diluent (TMPTA) as a reactive diluent are applied on metal surface as a top coat. A photo-initiator are added and cured respectively with UV-radiation. The treated steel metal surface coating properties has been evaluated by salt spray to exhibit its anti-corrosion. The best results in our experiments are that the top coat containing PDMS-function which could put in salt-spray test without corrosion more than 750 hours. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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