Cellulose Nanofibers Reinforced Carboxylated Nitrile Butadiene Rubber Coatings for Improved Corrosion Protection of Mild Steel

Panpan Yue, Yiqianru Zhang,Zain Ullah,Min Zhang,Ting Zhao,Peng Liu,Feng Peng, Liuqing Yang

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES（2025）

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Abstract

The development of an efficient coating with comprehensive antimicrobial and anticorrosion properties for metals is crucial. The present study used a one-pot strategy to fabricate a high-performance nanocomposite coating of carboxylated nitrile butadiene rubber/cellulose nanofibers/zinc oxide (XNBR/CNF-ZnO), demonstrating excellent potential for application in the protection against metal corrosion. Eco-friendly CNF-ZnO nanomaterials, prepared using the in-situ generation method, were used as reinforcing fillers, while XNBR was used as the matrix material. The incorporation of CNF-ZnO nanofillers notably increased the crosslink density of the composites, and thus significantly improved the interfacial compatibility between the XNBR matrix and the nanofillers. Also, the XNBR/CNF-ZnO composites exhibited significant improvements in solvent resistance, abrasion resistance, antimicrobial properties, and metal anticorrosion properties. We further elucidated the mechanism of interaction between the matrix and the nanofillers as well as the corresponding performance enhancement mechanism. This study presents a novel approach for developing multifunctional anticorrosive coatings, which holds significant potential for advancing research in metal corrosion protection.

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Key words

Cellulose nanofibers,Carboxylated nitrile butadiene rubber,Anticorrosion coating

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【要点】：本研究采用一锅策略制备了具有优异抗菌和防腐性能的羧化丁腈橡胶/纤维素纳米纤维/氧化锌纳米复合涂层，为金属防腐提供了高效保护。

【方法】：通过原位生成法制备环保型纤维素纳米纤维-氧化锌纳米材料，并将其作为增强填料，以羧化丁腈橡胶为基体材料，制备了高性能的纳米复合涂层。

【实验】：研究采用盐雾测试和极化曲线测试评估了涂层的防腐性能，使用了XNBR/CNF-ZnO纳米复合材料，实验结果表明，该涂层在溶剂抵抗性、耐磨性、抗菌性能和金属防腐性能方面均有显著提升。