Corrosion-resistant Mg(OH)2/Mg-Fe layered double hydroxide (LDH) composite films on magnesium alloy WE43

2021 ◽  
pp. 104169
Author(s):  
Jesslyn K.E. Tan ◽  
P. Balan ◽  
N. Birbilis ◽  
G. Manivasagam
Keyword(s):  
Magnesium Alloy ◽  
Layered Double Hydroxide ◽  
Composite Films ◽  
Corrosion Resistant ◽  
Alloy We43 ◽  
Double Hydroxide

scholarly journals Biodegradation of Poly (Butylene Succinate) (PBS)/Stearate Modified Magnesium-Aluminium Layered Double Hydroxide Composites under Marine Conditions Prepared via Melt Compounding

Molecules ◽  
2020 ◽  
Vol 25 (23) ◽  
pp. 5766
Author(s):  
Parameswaran Shaiju ◽  
Benamor-Bois Dorian ◽  
Ramsankar Senthamaraikannan ◽  
Ramesh Babu Padamati
Keyword(s):  
Layered Double Hydroxide ◽  
Composite Films ◽  
Thermal Characteristics ◽  
Melt Processing ◽  
Degradation Behaviour ◽  
Butylene Succinate ◽  
Melt Compounding ◽  
Polybutylene Succinate ◽  
Double Hydroxide ◽  
Characterisation Techniques

In the present work, polybutylene succinate (PBS)/stearate modified magnesium-aluminium layered double hydroxide (St-Mg-Al LDH) composites were prepared via melt processing and the effect of different loadings of St-Mg-Al LDH on the degradation behaviour of PBS under marine conditions was investigated. The morphological, mechanical and thermal characteristics of the composites were studied using different characterisation techniques. Optical imaging and scanning electron microscopy revealed that the incorporation of St-Mg-Al LDH accelerates the degradation of PBS along with the activity of microorganisms adhered to the composite films. PBS/St-Mg-Al LDH composites are found to have lower thermal degradation temperatures than those of pure PBS. The decrease in thermal stability is correlated with the degradation of PBS due to the catalytic action Mg and Al present in LDH. Tensile and DMA analysis revealed that the addition of St-Mg-Al LDH did not have a significant impact on the mechanical properties of PBS.

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