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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50487

Title: ZINC-RICH LITHIUM SILICATE COATINGS FOR CORROSION PREVENTION IN STEELS
Authors: Jiang-Jhy Chang
Wei-Chung Yeih
Kuo-Lien Chen
Maochieh Chi
Contributors: 國立臺灣海洋大學:河海工程學系
Keywords: zinc
lithium silicate
coating
corrosion prevention
Date: 2017-03
Issue Date: 2018-10-12T03:56:14Z
Publisher: Journal of Marine Sience and Technology (Taiwan)
Abstract: Abstract: In this study, we investigated the properties of zinc-rich
lithium silicate coatings using various moduli of lithium silicate
and zinc powder ratios, which are defined as the mass ratios of
zinc powder over lithium silicate. Coating properties examined
included film-forming ability, workability, mechanical behavior,
resistance to highly alkali or acid solutions, and weather resistance
(ultraviolet exposure test). The results showed that the
zinc powder ratio significantly influenced workability and filmforming
ability. When the zinc powder ratio of the coating
was low, the coating delaminated and cracked. When the zinc
powder ratio was high, the workability of the coating was found
to be poor; the coating was observed to be sticky and hard to
mix; thus, applying a uniform layer of coating on the steel substrate
was difficult. Additionally, the modulus of lithium silicate
affected the mechanical performance of the coating as well
as cathodic protection capability. A coating using a lower modulus
yielded a coating of more desirable thickness, hardness,
viscosity, and adhesive property. In addition, the cathodic protection
lasted longer.
Relation: 25(3) pp.259-267
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50487
Appears in Collections:[河海工程學系] 期刊論文

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