Enhanced adhesion and anticorrosion of silk fibroin coated biodegradable Mg-Zn-Ca alloy via a two-step plasma activation

被引：40

作者：

Fang, Hui ^{[1
]}

Wang, Chenxi ^{[1
]}

Zhou, Shicheng ^{[1
]}

Zheng, Zhen ^{[1
]}

Lu, Tian ^{[1
]}

Li, Ge ^{[1
]}

Tian, Yanhong ^{[1
]}

Suga, Tadatomo ^{[2
,3
]}

机构：

[1] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

[2] Meisei Univ, Collaborat Res Ctr, Hino, Tokyo 1918506, Japan

[3] Univ Tokyo, Sch Engn, Dept Precis Engn, Bunkyo Ku, Tokyo 1138656, Japan

来源：

CORROSION SCIENCE | 2020年 / 168卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Mg-Zn-Ca alloy; Silk fibroin; Plasma activation; Adhesion force; Corrosion resistance; CORROSION-RESISTANCE; MAGNESIUM ALLOYS; IN-VITRO; DEGRADATION BEHAVIOR; COVALENT IMMOBILIZATION; PHYTIC ACID; COATINGS; SURFACE; FABRICATION; CYTOCOMPATIBILITY;

D O I：

10.1016/j.corsci.2020.108466

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on a two-step plasma surface activation process (O-2 followed by N-2 plasma), silk fibroin coating was prepared on Mg-Zn-Ca alloy without conversion layer to retard the corrosion. This method achieved homogenized surfaces with better hydrophilicity and increased functional groups, significantly improving the adhesion force. The corrosion resistance of coated magnesium alloy was significantly enhanced compared to that of bare samples. Nanoscratch combined with corrosion behavior indicated that the remarkably improvement of anticorrosion ability attributed to the protective layer and the increased adhesion force. Our findings provided more possibilities for corrosion protection of degradable metals.

引用

页数：16

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