Antibiocorrosive epoxy-based coatings with low friction and high scratch resistance

被引：17

作者：

Barbakadze, Khatuna ^{[1
,2
,3
]}

Brostow, Witold ^{[3
]}

Datashvili, Tea ^{[3
]}

Hnatchuk, Nathalie ^{[3
]}

Lekishvili, Nodar ^{[1
]}

机构：

[1] Ivane Javakhishvili Univ, Fac Exact & Nat Sci, Inst Inorgan Organ Hybrid Cpds & Nontradit Mat, Dept Chem, 3 Ilia Chavchavadze Ave, Tbilisi 0179, Georgia

[2] Tbilisi Med Univ, Fac Pharm, Dept Med Chem, 33 Vazha Pshavela Ave, Tbilisi 0186, Georgia

[3] Univ North Texas, Dept Mat Sci & Engn, LAPOM, 3940 North Elm St, Denton, TX 76207 USA

来源：

WEAR | 2018年 / 394卷

基金：

美国国家科学基金会;

关键词：

Polymer scratch resistance; Polymer friction; Polymer aging; Water absorption; BEHAVIOR; WEAR;

D O I：

10.1016/j.wear.2017.08.006

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

We have created inorganic-organic hybrid composites and antibiocorrosive coatings based on an epoxy modified with silicon-containing polyepoxies and bioactive coordination compounds. The scratch resistance was determined using a conical diamond indenter with linearly increased load. Repetitive scratching along the same groove (sliding wear determination) was also performed. Whether in single or in repetitive scratching, for most hybrids the residual depth is shallower than for the pure epoxy. Dynamic friction was determined on a pin-on-disk tribometer using steel pins. Lower friction is accompanied by higher scratch resistance. Surface morphology seen in scanning electron microscopy (SEM) shows that increasing modifier content causes more ductile behavior with less crack nucleation; no debris formation is observed. The composites were also characterized by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Isothermal aging and water absorption ability (W-H2O) of the hybrids were determined. The hybrids are optically transparent, visually homogeneous, with smooth surfaces.

引用

页码：228 / 235

页数：8

共 34 条

[11] Biofilms: Microbial life on surfaces [J].

Donlan, RM .

EMERGING INFECTIOUS DISEASES, 2002, 8 (09) :881-890

[12] A metal ion release study of CoCrMo exposed to corrosion and tribocorrosion conditions in simulated body fluids [J].

Espallargas, N. ;

Torres, C. ;

Munoz, A. I. .

WEAR, 2015, 332 :669-678

[13]

European Commission, 2009, PRES OUR HER IMPR OU, P248

[14]

Gomez-Romero P., 2004, Functional hybrid materials, P1

[15] Microbiological deterioration and degradation of synthetic polymeric materials: recent research advances [J].

Gu, JD .

INTERNATIONAL BIODETERIORATION & BIODEGRADATION, 2003, 52 (02) :69-91

[16] Leonardo da Vinci's studies of friction [J].

Hutchings, Ian M. .

WEAR, 2016, 360 :51-66

[17] Effects of ball burnishing on surface properties of low density polyethylene [J].

Janczewski, Lukasz ;

Tobola, Daniel ;

Brostow, Witold ;

Czechowski, Kazimierz ;

Lobland, Haley E. Hagg ;

Kot, Marcin ;

Zagorski, Krzysztof .

TRIBOLOGY INTERNATIONAL, 2016, 93 :36-42

[18]

Kalogeras IM, 2012, J MATER EDUC, V34, P69

[19] Sliding wear behavior of PTFE composites [J].

Khedkar, J ;

Negulescu, I ;

Meletis, EI .

WEAR, 2002, 252 (5-6) :361-369

[20]

Konczol L., 1995, J APPL POLYM SCI, V26, P371

← 1 2 3 4 →