Synthesis and structural analysis of hydrotalcite bearing benzothiazolylthiosuccinic acid modified by silane; study on corrosion inhibiting ability for steel of hydrotalcite bearing benzothiazolylthiosuccinic acid modified by silane. | VIETNAM ACADEMY OF SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY NGUYEN TUAN ANH Project name SYNTHESIS OF HYDROTALCITES BEARING CORROSION INHIBITORS AND FABRICATION OF NANOCPMPOSITE COATINGS FOR CORROSION PROTECTION OF CARBON STEEL Major Organic chemistry Code SUMMARY OF CHEMICAL DOCTORAL THESIS Hanoi 2018 The thesis was completed at Graduate University of Science and Technology - Vietnam Academy of Science and Technology. Scientific Supervisors 1. Assoc. Prof. Dr. To Thi Xuan Hang Institute for Tropical Technology - Vietnam Academy of Science and Technology. 2. Assoc. Prof. Dr. Trinh Anh Truc Institute for Tropical Technology - Vietnam Academy of Science and Technology. A. INTRODUCTION 1. The urgency of thesis Corrosion of metal causes great damage to the economy of countries in the world as well as in Vietnam so the corrosion protection of metals is very necessary. Organic coatings are widely used for corrosion protection of metal structures. Pigment inhibits corrosion in paint film plays an important role in ensuring the anti-corrosion protection of coatings. Chromates are the best inhibitive pigments but due to their high toxicity and unfriendly to the environment it is increasingly limited in their use. There have been many research to study the replacement of chromates in organic coatings by non- toxic pigments and additives. One of atractive researchs is the fabrication of inhibitive pigments based on hydrotalcite. The application of hydrotalcites is based on their ability to absorb and exchange anion and flexibility of anions between the layers. The coatings containing hydrotalcites bearing organic anions such as benzotriazolate and oxalate have also been studied. In addition hydrotalcites containing decavanadate vanadate have been studied and applied in the anti-corrosion protection coating for aluminum and magnesium alloys. However these coatings are not as protective as the coatings containing chromates. The protective
