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Heat treatment of Hexa-Methylene Diamine Tetra-Methylene Phosphonic Acid (HMDTMPA) coating on biodegradable Mg to improve corrosion resistance and bioactivity
Surface Engineering ( IF 2.8 ) Pub Date : 2021-04-02 , DOI: 10.1080/02670844.2021.1906000
Hanaa Soliman 1, 2 , Abdel Salam Makhlouf 1, 3 , Guojiang Wan 2
Affiliation  

ABSTRACT

Since the bioactive surface needs hydrophilic coating; and the high corrosion resistance needs a hydrophobic one, it is a challenge to design a bioactive film that exhibits corrosion protection. In this article, Hexa-Methylene Diamine Tetra-Methylene Phosphonic Acid (HMDTMPA) film was deposited on Mg substrate at different heat treatment conditions. The heat-treated films at 150°C showed remarkable anticorrosion performance about five times the non-heated film. In addition, bioactivity character such as live cells attraction was noticed due to the increase of P–O groups that compensated the decrease of O–H groups in the film structure. Through the post-heat treatment, we were able to provide a new insight towards understanding how particular functional groups (OH) can modify the organic coating quality. The master key here is the formation of a stable film of chloroapatite that plays dual functions to inhibit the corrosive ions penetration and improve the bioactivity to attract the living-cell.



中文翻译:

在可生物降解的镁上热处理六亚甲基二胺四亚甲基膦酸 (HMDTMPA) 涂层以提高耐腐蚀性和生物活性

摘要

由于生物活性表面需要亲水涂层;并且高耐腐蚀性需要疏水性的,设计具有腐蚀保护的生物活性膜是一项挑战。在本文中,六亚甲基二胺四亚甲基膦酸 (HMDTMPA) 薄膜在不同的热处理条件下沉积在镁基板上。在 150°C 下热处理的薄膜表现出显着的防腐性能,约为未加热薄膜的 5 倍。此外,由于 P-O 基团的增加补偿了膜结构中 O-H 基团的减少,因此注意到了诸如活细胞吸引力等生物活性特征。通过后热处理,我们能够为理解特定官能团 (OH) 如何改变有机涂层质量提供新的见解。

更新日期:2021-04-02
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