Surface and interface analysis of poly-hydroxyethylmethacrylate-coated anodic aluminium oxide membranes

Ali, Nurshahidah; Duan, Xiaofei; Jiang, Zhong Tao; Goh, Bee Min; Lamb, Robert N.; Tadich, Anton; Poinern, Gérrard Eddy Jai; Fawcett, Derek; Chapman, Peter; Singh, Pritam

doi:10.1016/j.apsusc.2013.11.042

Cited by 18 publications

(13 citation statements)

References 8 publications

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“…Ali et al 23 studied the joining surface of anodizing alumina film and polyacrylate poly-hydroxyethyl methacrylate (PHEMA), they discovered that the ester groups of PHEMA reacted with aluminum atoms. In the study of alumina films deposited on the surface of corona treated PET, Sandrin et al 24 found that the aluminum atoms reacted with PET and generated new Al-O-C and Al-C chemical bonds.…”

Section: X-ray Photoelectron Spectroscopy (Xps)mentioning

confidence: 99%

Performance and mechanism of laser transmission joining between glass fiber‐reinforced PA66 and PC

Liu

Chen

Jiang

et al. 2015

J of Applied Polymer Sci

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On account of the large compatibility difference between glass fiber-reinforced Polyamide 66 (GFR-PA66) and Polycarbonate (PC), it is difficult to weld them directly by laser. A new technology is introduced in this article by which the transparent PC is successfully welded with GFR-PA66 using cold spraying in order to spray a 20 lm-thick aluminum film on GFR-PA66 as the absorbed layer. Tensile shear tests show the tensile strength of welded joints is highly enhanced. The influences of bubbles, glass fiber, and aluminum atoms on the performance of the joins are investigated via the optical microscope. X-ray Photoelectron Spectrometer (XPS) is used to detect the chemical information of fracture sections on PC. In terms of the generation of bubbles, the influence of glass fiber, the distribution of aluminum atoms, and the formation of new chemical bonds, this article analyses the mechanism why the two different materials can be welded successfully. The micro-anchor influence of glass giber in fiber-reinforced polymers is important. The generation of new chemical bonding (Al-O-C) between aluminum and upper PC is the main reason why the joining strength is enhanced greatly.

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Section: X-ray Photoelectron Spectroscopy (Xps)mentioning

confidence: 99%

Performance and mechanism of laser transmission joining between glass fiber‐reinforced PA66 and PC

Liu

Chen

Jiang

et al. 2015

J of Applied Polymer Sci

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“…The good mechanical properties are achieved by means of a complex microstructure, resulting from the addition of several alloying elements, such as Mg, Mn, and Cu, and thermomechanical treatments performed during the production stage . However, the microstructural complexity of this alloy, with the presence of intermetallics, dispersoids, and strengthening particles, considerably reduces its resistance to localized corrosion . Thus, for use in aircraft, AA2024‐T3 requires an efficient protection system.…”

Section: Introductionmentioning

confidence: 99%

“…In the aerospace industry, for more than 60 years, anodizing has been performed in acidic baths containing chromate ions, mainly for structural components . In a bid to increase the corrosion resistance, the anodized alloy is then subjected to the commercial alodine treatment (which also contains chromates) and by the application of a primer (generally containing chromate‐base inhibitors) and a topcoat . To ensure good adhesion of the primer, the porous layer cannot be sealed.…”

Section: Introductionmentioning

confidence: 99%

EIS investigation of a Ce‐based posttreatment step on the corrosion behaviour of Alclad AA2024 anodized in TSA

Ramirez

Queiroz

Terada

et al. 2019

Surface & Interface Analysis

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In the aircraft industry, anodizing and posttreatment steps use Cr (VI) compounds, which, despite offering good corrosion resistance and self‐healing properties, are highly toxic and carcinogenic. Ce compounds are recognized as efficient corrosion inhibitors for Al alloys, and several works report self‐healing ability for these chemicals. In this investigation, the corrosion resistance of Alclad AA2024‐T3 alloy anodized in tartaric‐sulphuric acid (TSA) bath and posttreated in a solution comprising cerium nitrate without and with hydrogen peroxide was evaluated. The purpose is to investigate the potentiality of using hydrothermal treatment in Ce nitrate solution as candidate to replace Cr (VI) posttreatment. The aim is to provide a posttreatment step which, while improving the corrosion resistance, does not plug the mouths of the pores maintaining the adhesion properties of the porous anodic layer. Microstructural characterization was carried out by SEM‐EDS whereas corrosion resistance was evaluated by EIS. The surface analysis showed that the posttreatments, all performed at 50°C, kept the open structure of the pores. EIS analysis showed that the posttreatments performed in the H2O2 solution for short immersion times were the most effective in improving the corrosion resistance of the samples, whereas electrical equivalent circuit (EEC) fitting of the data indicated sealing of the porous layer during the immersion of the different samples in the test solution. SEM‐EDS analysis of the samples posttreated in the H2O2 containing solution, prior and after the corrosion test, showed the presence of Ce oxy‐hydroxide randomly deposited on the sample surface, indicating that Ce could be incorporated/stored in the anodic layer.

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“…Hydrophilic and superhydrophilic surfaces are widely used application due to the characteristic of self-cleaning, antifogging (Chen et al 2013), antireflective properties (Geng, He, and Xu 2012), biomedical devices application (Tarmizi et al 2018), pharmacological study (Sharif et al 2018) , bioactive and for water treatment application (Ursino et al 2019). Many efforts have been done to prepare suitable material and fabrication method such as sol gel method (Senem, Kaya, and Cengiz 2019), layer by layer coating (Geng, He, and Xu 2012), polymerization and anodic treatments (Ali et al 2014) and various material such as silica nanoparticles, aluminium oxide (Zhang et al 2018), titania (Saleh, Abdullah, and Yunus 2018), zeolite, have been study to achieve the requirement for hydrophilic or superhydrophilic.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Hydrophilic Silica Coating Varnish on Pineapple Peel Fiber Based Biocomposite

Tarmizi¹,

Maski²,

Ali³

et al. 2019

IJIE

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In the last several years, the interest on hydrophobic and hydrophilic solid subtract was increased due to many applications in daily life, agriculture and industry. The continuous effort has been made to fabricate suitable material with more efficient fabrication method. In this research, physical blending method have been used by mixing four components of modifying agent with organic beeswax varnish at different weight percentage. Those modifying agents consists of decamethylcyclopentasiloxane (D5), Silica nanoparticles (R812S), Polydimethylsiloxane (BP-9400) and non-ionic surfactant (Triton X-100) were mixed in the mass ratio of 52:3:34:1. The modified varnish produced was coated on Pineapple peel fiber (PAPF) biocomposite and were characterized using Water Contact Angle (WCA) instrument, Fourier Transform Infrared (FTIR) and Scanning Electron Microscope (SEM). Based on the wettability index analysis; the value of water contact angle was reduced when increasing weight percent of modifying agents from 101.87 to 22.98°. The morphology of the surface was observed to have more silica nanoparticles, along with the increasing concentration of modifying agent. It also supported by FTIR which shows the presence of Si-O peak at 1030.88 cm-1. These results proved that the modifying agent and organic beeswax varnish had successfully produced hydrophilic coated on the PAPF surface.

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Surface and interface analysis of poly-hydroxyethylmethacrylate-coated anodic aluminium oxide membranes

Cited by 18 publications

References 8 publications

Performance and mechanism of laser transmission joining between glass fiber‐reinforced PA66 and PC

Performance and mechanism of laser transmission joining between glass fiber‐reinforced PA66 and PC

EIS investigation of a Ce‐based posttreatment step on the corrosion behaviour of Alclad AA2024 anodized in TSA

Fabrication of Hydrophilic Silica Coating Varnish on Pineapple Peel Fiber Based Biocomposite

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