Yun, Tae Ho, et al. Journal of Industrial and Engineering Chemistry 126 (2023): 408-417.
Polyvinyl butyral (PVB) is employed as a binder in the photocatalytic TiO2-PVB film for photocathodic protection (PCP) of metals, offering a promising solution to reduce corrosion in carbon steel (CS) and stainless steel (STS). In this study, PVB was incorporated into TiO2 nanoparticle coatings via electrophoretic deposition (EPD), aiming to enhance the cathodic protection efficiency of these metals.
The addition of PVB influenced the deposition yield of TiO2 nanoparticles, with a higher PVB content resulting in a lower deposition mass. This effect was observed when experiments were conducted at various applied potentials and deposition times. While PVB hindered the deposition efficiency of TiO2, it played a crucial role in improving the stability and adhesion of the photocatalytic films.
The TiO2-PVB EPD film demonstrated enhanced protection of stainless steel, extending the cathodic protection time compared to coatings without PVB. This research underscores PVB's valuable role in improving the performance of photocatalytic materials for corrosion prevention. PVB's incorporation into TiO2 films holds significant potential for developing cost-effective, eco-friendly coatings for metal protection in industrial applications, reducing reliance on more expensive and environmentally hazardous materials.
Zhu, Ruifeng, et al. Industrial Crops and Products 203 (2023): 117084.
Polyvinyl butyral (PVB) plays a crucial role in the development of environmentally friendly, water- and oil-proof paper-based packaging materials. In this study, PVB was used in combination with sodium alginate (SA), cellulose nanofibers (CNF), and ethyl cellulose (EC) to create coatings that provide enhanced resistance to water and oil, making them ideal for sustainable food packaging applications.
The preparation process involves the creation of a homogeneous EC/PVB solution by dissolving PVB and EC in anhydrous ethanol, followed by sonication to ensure uniformity. This solution is then applied to a base paper that has been pre-treated with a calcium chloride (CaCl2) solution. The resulting composite paper demonstrates superior barrier properties, with the PVB coating providing significant resistance to oil and water penetration.
The application of PVB in this context is crucial for improving the performance of eco-friendly packaging materials, which are increasingly sought after due to growing environmental concerns. By incorporating PVB, the paper-based packaging achieves a high level of durability and moisture resistance, without relying on fluorine-based chemicals. This study showcases PVB's utility in the synthesis of high-performance, recyclable packaging materials, contributing to the development of sustainable alternatives to traditional food packaging.
Zhu, Ziwei, et al. Progress in Organic Coatings 180 (2023): 107559.
Polyvinyl butyral (PVB) has been successfully utilized as a matrix for the preparation of advanced anticorrosive composite coatings. In this study, PVB was dissolved in ethanol, and various mass fractions of polyaniline-carbonized polyaniline (PANI-CPANI) composites were dispersed ultrasonically in absolute ethanol. The resulting dispersion was then mixed with the PVB solution and stirred for 4 hours to ensure uniform distribution.
The composite coating was fabricated through a spin-coating method and subsequently cured under vacuum at 100 °C for 6 hours. A cross-sectional SEM analysis revealed that the final coating had a thickness of approximately 20 μm. The integration of PANI-CPANI with PVB significantly enhanced the corrosion resistance of the coating, as evidenced by electrochemical tests showing a reduction in the corrosion rate.
This method demonstrates that PVB, when combined with conductive polyaniline derivatives, is an effective binder for creating durable, corrosion-resistant coatings. These findings highlight PVB's potential in producing high-performance materials for industrial applications, where corrosion protection is critical.
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