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Nanocrystalline Cellulose as an Eco-Friendly Reinforcing Additive to Polyurethane Coating for Augmented Anticorrosive Behavior

Nanocrystalline Cellulose as an Eco-Friendly Reinforcing Additive to Polyurethane Coating for Augmented Anticorrosive Behavior

M Abd El-Fattah, Abdulraheim M A Hasan, Mohamed Keshawy, Ashraf M El Saeed, Ossama M Aboelenien

Carbohydr Polym. 2018 Mar 1;183:311-318.

PMID: 29352890

Abstract:

Nanocrystalline cellulose (NCC) and micro-powdered cellulose (MPC) were extracted from rice straw by mechanical and alkali treatment methods, then characterized via infrared spectroscopy and dynamic light scattering. A series of polyurethane nanocrystalline cellulose composite (PNCCC) and polyurethane micro-powdered cellulose composite (PMPCC) coatings were prepared with various loading levels of NCC and MPC from 0.5 to 2.0 wt.%, and the coatings were applied onto the pretreated mild steel substrate at room temperature. The results showed that the NCC and MPC influenced positively the studied properties of the polyurethane coating; furthermore the most pronounced anticorrosive properties were obtained at 1 wt.% NCC and MPC, as confirmed by open circuit potential (OCP) study, electrochemical impedance spectroscopy (EIS) study and salt spray test. However, the optimum enhancement of mechanical properties was found at 1.5 wt.% loading level, after which further loading of NCC and MPC led to the reduction in the mechanical properties.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP9004346-B	Powdered Cellulose		9004-34-6	Price

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