CORROSION BEHAVIOR OF ALUMINUM/SILICA/POLYSTYRENE NANOSTRUCTURED HYBRID FLAKES

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AMIRSHAQAQI NAGHMEH; SALAMI KALAJAHI MEHDI; MAHDAVIAN MOHAMMAD

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Journal: Iranian Polymer Journal Year:2014 | Volume:23 | Issue:9 Page(s): 699-706

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Title

CORROSION BEHAVIOR OF ALUMINUM/SILICA/POLYSTYRENE NANOSTRUCTURED HYBRID FLAKES

Author(s)

AMIRSHAQAQI NAGHMEH | SALAMI KALAJAHI MEHDI | MAHDAVIAN MOHAMMAD | Issue Writer Certificate

Keywords

ALUMINUM FLAKES

CORROSION PROTECTION

POLYSTYRENE

SILICA

IN SITU POLYMERIZATION

ENCAPSULATION

Abstract

The CORROSION PROTECTION of aluminum flake pigments has been extended by means of an encapsulating inorganic/organic SILICA/polystyrene hybrid nanolayer. A SILICA nanolayer encapsulated the surface of ALUMINUM FLAKES (Al) by hydrolysis and polycondensation of tetraethylorthosilicate via sol–gel process to yield Al/Si flakes. Then, 3-methacryloxypropyltrimethoxysilane (MPS) was used as surface modifier which has polymerizable groups to participate in polymerization reaction (Al/Si/MPS). A POLYSTYRENE (PS) coating layer was applied on Al/Si/MPS flakes by free radical polymerization of styrene initiating with Azobisisobutyronitrile at 60 °C and subsequent washing of free chains with solvent yielded Al/Si/PS flakes. Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy and scanning electron microscopy showed that SILICA and PS nanolayers were formed on the ALUMINUM FLAKES. The attached PS chains on the surface were detached by hydrofluoric acid aqueous solution and analyzed by gel permeation chromatography (GPC). Also, a transmission electron microscopy image showed clearly that the encapsulating layers are in the scale of nano. Good results were obtained in terms of CORROSION PROTECTION in acidic and alkaline solutions, indicating that the SILICA/polymer hybrid nanolayer coating acts as an efficient protective film. After encapsulating the flakes, the evolved hydrogen volume was dropped and hybrid nanolayer resulted in no evolved hydrogen volume.

Cites

SYNTHESIS AND CHARACTERIZATION OF SUNFLOWER OIL-BASED POLYSULFIDE POLYMER/CLOISITE 30B NANOCOMPOSITES

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APA: Copy

AMIRSHAQAQI, NAGHMEH, SALAMI KALAJAHI, MEHDI, & MAHDAVIAN, MOHAMMAD. (2014). CORROSION BEHAVIOR OF ALUMINUM/SILICA/POLYSTYRENE NANOSTRUCTURED HYBRID FLAKES. IRANIAN POLYMER JOURNAL (ENGLISH), 23(9), 699-706. SID. https://sid.ir/paper/633944/en

Vancouver: Copy

AMIRSHAQAQI NAGHMEH, SALAMI KALAJAHI MEHDI, MAHDAVIAN MOHAMMAD. CORROSION BEHAVIOR OF ALUMINUM/SILICA/POLYSTYRENE NANOSTRUCTURED HYBRID FLAKES. IRANIAN POLYMER JOURNAL (ENGLISH)[Internet]. 2014;23(9):699-706. Available from: https://sid.ir/paper/633944/en

IEEE: Copy

NAGHMEH AMIRSHAQAQI, MEHDI SALAMI KALAJAHI, and MOHAMMAD MAHDAVIAN, “CORROSION BEHAVIOR OF ALUMINUM/SILICA/POLYSTYRENE NANOSTRUCTURED HYBRID FLAKES,” IRANIAN POLYMER JOURNAL (ENGLISH), vol. 23, no. 9, pp. 699–706, 2014, [Online]. Available: https://sid.ir/paper/633944/en

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