scholarly journals Preparation of Degradable Superhydrophobic Mg/P/Z/F/H Composite Materials and Their Anticorrosion

2021 ◽  
Author(s):  
Zhongxian Xi ◽  
Chengqing Yuan ◽  
Xiuqin Bai ◽  
Chun Wang ◽  
Anne Neville
Keyword(s):  
Corrosion Resistance ◽  
Composite Materials ◽  
Magnesium Alloys ◽  
The Self ◽  
Heating Process ◽  
Good Adhesion ◽  
Step Method ◽  
One Step ◽  
Self Cleaning ◽  
Poly Caprolactone

In this study, the degradable superhydrophobic Mg/P/Z/F/H (magnesi-um/poly(-caprolactone)/zinc oxide/1H,1H,2H,2H-perfluorodecyltriethoxysilane (PFDTES)/ heating process) composite materials were prepared through one-step method for enhancing the corrosion resistance of AZ91D magnesium alloys. Electrochemical measurements showed that Mg/P/Z/F/H materials significantly improved the corrosion resistance of magnesium alloys in 3.5 wt.% NaCl. The self-cleaning, adhesion and stability tests suggested that Mg/P/Z/F/H composite materials had well self-cleaning properties, good adhesion strength and stability in wet atmosphere.

scholarly journals Preparation of Degradable Superhydrophobic Mg/P/Z/F/H Composite Materials and Their Anticorrosion

Coatings ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1239
Author(s):  
Zhongxian Xi ◽  
Chengqing Yuan ◽  
Xiuqin Bai ◽  
Chun Wang ◽  
Anne Neville
Keyword(s):  
Zinc Oxide ◽  
Corrosion Resistance ◽  
Composite Materials ◽  
Magnesium Alloys ◽  
Dip Coating ◽  
Heating Process ◽  
Good Adhesion ◽  
Coating Method ◽  
Dip Coating Method ◽  
Poly Caprolactone

In this study, the degradable superhydrophobic Mg/P/Z/F/H (magnesium/poly(-caprolactone)/zinc oxide/1H,1H,2H,2H-perfluorodecyltriethoxysilane (PFDTES)/heating process) composite materials were prepared through dip-coating method and heating process, for enhancing the corrosion resistance of the AZ91D magnesium alloys. The electrochemical measurements revealed that the Mg/P/Z/F/H materials significantly improved the corrosion resistance of the magnesium alloys in 3.5 wt.% NaCl. The Mg/P/Z/F/H composite materials exhibited efficient self-cleaning properties, good adhesion strength, and stability in wet atmosphere.

scholarly journals One-Step Preparation of Hyperbranched Polyether Functionalized Graphene Oxide for Improved Corrosion Resistance of Epoxy Coatings

Coatings ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 844 ◽  
Author(s):  
Xuepei Miao ◽  
An Xing ◽  
Lifan He ◽  
Yan Meng ◽  
Xiaoyu Li
Keyword(s):  
Corrosion Resistance ◽  
Graphene Oxide ◽  
Acid Resistance ◽  
Epoxy Coating ◽  
Functionalized Graphene ◽  
Step Method ◽  
Epoxy Coatings ◽  
Functionalized Graphene Oxide ◽  
One Step ◽  
Hyperbranched Polyether

In this paper, hyperbranched polyether functionalized graphene oxide (EHBPE-GO) was prepared by a facile one-step method. Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), thermogravimetric analyzer (TGA), and trans-mission electron microscopy (TEM) results confirmed the formation of EHBPE-GO. Then, EHBPE-GO was cured with phenolic amides at room temperature to prepare epoxy coatings. The corrosion resistance of epoxy coatings was investigated systematically by using electrochemical and traditional immersion methods. Results show that a small amount of EHBPE-GO (8 wt % of Diglycidyl ether of bisphenol A (DGEBA)) in epoxy coating achieves 50% higher improvement in acid-resistance than unmodified neat DGEBA resin. For the nanocomposite epoxy coating, the superior acid-resistance is attributed to the increased crosslink density and the impermeable 2D structure of EHBPE-GO. This work provides a facile strategy to develop the effective improved corrosion resistance nanofiller for epoxy coating.

Properties of Conversion Coating of Magnesium Alloys by a Phosphate-Permanganate Solution

2005 ◽  
Vol 488-489 ◽  
pp. 665-668 ◽  
Author(s):  
Shu Sen Wu ◽  
Ming Zhao ◽  
Ji Rong Luo ◽  
You Wu Mao
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloys ◽  
Adhesion Force ◽  
Conversion Coating ◽  
Resistance Test ◽  
Az91d Alloy ◽  
Conversion Coatings ◽  
Good Adhesion ◽  
Better Than

A chromium-free conversion coating for AZ91D magnesium alloys has been obtained by using a phosphate-permanganate solution. Examinations have been carried out on the conversion coating for morphology, composition, adhesion force and corrosion resistance. Results show that the conversion coatings are relatively uniform and continuous, with thickness from 7µm to 10µm. They exhibit good adhesion to matrix and have some non-penetrate tiny holes on the surface. The main elements of the conversion coating of AZ91D alloy are Mg、O、P、K、Al、Mn. Results of corrosion resistance test indicate that the corrosion resistance of the conversion coating by phosphate-permanganate solution is in match to that of the conversion coating formed in a chromate solution, but for the corrosion resistance after painting, the former is better than the later.

scholarly journals Rapid Fabrication of a Crystalline Myristic Acid-Based Superhydrophobic Film with Corrosion Resistance on Magnesium Alloys by the Facile One-Step Immersion Process

ACS Omega ◽  
2017 ◽  
Vol 2 (11) ◽  
pp. 7904-7915 ◽  
Author(s):  
Takahiro Ishizaki ◽  
Yuta Shimada ◽  
Mika Tsunakawa ◽  
Hoonseung Lee ◽  
Tetsuya Yokomizo ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloys ◽  
Myristic Acid ◽  
Rapid Fabrication ◽  
One Step

One-step method for the self-assembly of metal nanoparticles onto facetted hollow silica tubes

2006 ◽  
Vol 16 (36) ◽  
pp. 3619 ◽  
Author(s):  
Yatendra S. Chaudhary ◽  
J. Ghatak ◽  
Umananda M. Bhatta ◽  
Deepa Khushalani
Keyword(s):  
Metal Nanoparticles ◽  
Self Assembly ◽  
The Self ◽  
Step Method ◽  
Hollow Silica ◽  
One Step

scholarly journals One-step electrodeposition of a self-cleaning and corrosion resistant Ni/WS2superhydrophobic surface

RSC Advances ◽  
2016 ◽  
Vol 6 (64) ◽  
pp. 59104-59112 ◽  
Author(s):  
Guochen Zhao ◽  
Yanpeng Xue ◽  
Yuanfeng Huang ◽  
Ying Ye ◽  
Frank C. Walsh ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Composite Coating ◽  
Superhydrophobic Coating ◽  
Corrosion Resistant ◽  
Electrodeposition Process ◽  
One Step ◽  
Self Cleaning

A robust superhydrophobic coating based on Ni/WS2was fabricated successfully through a simple one-step electrodeposition process. This metal-caramic composite coating showed excellent self-cleaning and corrosion resistance properties.

scholarly journals Synthesis and thermal properties of new copolyesters based on polycaprolactone

e-Polymers ◽  
2012 ◽  
Vol 12 (1) ◽  
Author(s):  
El Miloud Maafi ◽  
Fouad Malek ◽  
Lan Tighzert ◽  
Fouad Laoutid ◽  
Philippe Dubois
Keyword(s):  
Thermal Properties ◽  
Ftir Spectroscopy ◽  
Polymer Chain ◽  
Synthesis Method ◽  
Aromatic Rings ◽  
Step Method ◽  
One Step ◽  
Random Distributions ◽  
Poly Caprolactone ◽  
C Nmr

AbstractSeveral copolyesters were synthesized from carboxytelechelic poly( - caprolactone) and bis(2-hydroxyethyl)terephthalate (BHET), using a two-step method and a one-step method providing regular and random distributions of starting comonomers in the copolyester chains, respectively. Even with an identical molar comonomer composition, the properties of obtained copolyesters depended on the synthesis method, therefore the comonomer distribution along the polymer chain. The copolyester structure was characterized by 1H and 13C NMR and FTIR spectroscopy. The thermal properties of synthesized copolyesters were also studied by DSC and TGA demonstrating the influence of aromatic rings spread along the macromolecular polyester chain.

Fabrication of durable anticorrosion superhydrophobic surfaces on aluminum substrates via a facile one-step electrodeposition approach

RSC Advances ◽  
2016 ◽  
Vol 6 (42) ◽  
pp. 35455-35465 ◽  
Author(s):  
Binbin Zhang ◽  
Xia Zhao ◽  
Yantao Li ◽  
Baorong Hou
Keyword(s):  
Corrosion Resistance ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
Superhydrophobic Surfaces ◽  
Electrodeposition Method ◽  
One Step ◽  
Corrosion Inhibition Efficiency ◽  
Self Cleaning ◽  
Aluminum Substrates

A facile one-step electrodeposition method was used to fabricate a hierarchical papillae-covered SHPS on an Al substrate with enhanced corrosion resistance (corrosion inhibition efficiency ~99.96%) and lotus-like self-cleaning effect.

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