Development of cardanol based antibacterial and anticorrosive bio-polyurea-epoxy composite coating for mild steel surface

被引：6

作者：

Jahan, Afroz ^{[1
]}

Masood, Shumaila ^{[1
,2
]}

Zafar, Fahmina ^{[1
]}

Shaily ^{[1
]}

Rizvi, Syed Ahmed ^{[3
]}

Alam, Manawwer ^{[4
]}

Ghosal, Anujit ^{[5
]}

Haq, Qazi Mohd Rizwanul ^{[3
]}

Nishat, Nahid ^{[1
]}

机构：

[1] Jamia Millia Islamia, Dept Chem, Inorgan Mat Res Lab, New Delhi 110025, India

[2] Indian Inst Packaging, Mumbai 400093, Maharshtra, India

[3] Jamia Millia Islamia, Dept Biosci, Microbiol Res Lab, New Delhi 110025, India

[4] King Saud Univ, Coll Sci, Dept Chem, POB 2455, Riyadh 11451, Saudi Arabia

[5] Red River Coll Polytech, Dept Lifesci, Winnipeg, MB R2H 0J8, Canada

来源：

PROGRESS IN ORGANIC COATINGS | 2024年 / 189卷

关键词：

Cardanol; DGEBA; Anti; -bacterial; -corrosive; Bio-polyurea; ANHYDRIDE CURING AGENT; RESINS;

D O I：

10.1016/j.porgcoat.2024.108273

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Corrosion and bacterial resistance in the field of high-performance epoxy composite coatings are tough to accomplish simultaneously. The present work seeks to investigate the viability of utilizing a bio-polyurea epoxy (BPUE) resin derived from renewable resources i.e., cardanol with good physico-mechanical, anticorrosive, and antibacterial properties. Initially, bio-polyurea (BP) was developed using cardanol followed by its chemical tethering {(20 %, 30 %, 40 %, and 50 %) with commercially available epoxy (Diglycidyl ether of bisphenol-A (DGEBA)}. After the synthesis of BPUE thermosets, an analysis of their chemical structure was conducted by Fourier transform infrared (FTIR) and Nuclear magnetic resonance (NMR) spectroscopy. The evaluation of the BPUE composite coatings encompassed a comprehensive characterization through employing established ASTM standards. It revealed that out of all the synthesized compositions BPUE3 exhibited excellent thermal stability (5-10 % wt. loss at 327 degrees C to 357 degrees C), mechanically resistant (Impact resistance: 150 lb./in., Pencil hardness: 5H, Scratch hardness: 2.5 kg, Crosshatch: 100 %, bending: 1/8 in., Wear resistance: 4.6 mg wt. loss per 1800 cycles, and Gloss value: 108 G.U.) and hydrophobic properties (water contact angle over 100(o)). Overall, the BPUE thermoset composite coatings from agro-by-product materials have excellent potential for combatting corrosion and bacterial activities.

引用

页数：15