In the ever-evolving world of sustainable materials, a groundbreaking study led by Rattanawadee Hedthong has emerged, promising to revolutionize the construction and furniture industries. The research, published in the journal eXPRESS Polymer Letters, focuses on enhancing the thermal and mechanical properties of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) biocomposites, a material derived from renewable resources.
The study introduces a novel approach to improving the interfacial adhesion between PHBV and hemp microcrystalline cellulose (MCC) by using a compatibilizer made from epoxidized natural rubber (ENR) grafted with microfibrillated cellulose (MFC) modified by vinyltrimethoxysilane (ENR-vinyl silanized MFC). This innovative method not only boosts the flexural modulus by approximately 65% with the addition of 5 wt% MCC but also significantly enhances the compatibility between the PHBV and MCC phases, as evidenced by scanning electron microscope (SEM) images.
The implications of this research are vast, particularly for the energy sector, where sustainable and durable materials are in high demand. “The use of ENR-vinyl silanized MFC as a compatibilizer demonstrated improved compatibility, as observed in scanning electron microscope (SEM) images,” Hedthong explains. This enhanced compatibility is crucial for creating materials that can withstand the rigors of outdoor environments, making them ideal for construction and furniture applications.
One of the most compelling findings of the study is the performance of the biocomposite after 30 days of accelerated weathering (QUV) exposure. The flexural strength of the PHBV-based biocomposite with ENR-vinyl silanized MFC and MCC (vinyl silanized MFC biocomposite) was superior to that of other samples. The remaining flexural strength can be sequentially categorized as follows: vinyl silanized MFC > MFC > non-MFC > PHBV. This durability is a game-changer for the construction industry, where materials must endure harsh weather conditions and maintain their structural integrity over time.
The research also highlights the increased crystallinity and hydrophobicity of the vinyl silanized MFC biocomposite, making it an excellent candidate for both exterior and interior decoration. “The crystallinity of the vinyl silanized MFC biocomposite was the highest among all materials and demonstrated higher hydrophobicity,” Hedthong notes. This property is particularly valuable in the energy sector, where materials must often resist moisture and other environmental factors that can degrade performance.
The study’s findings suggest that this biocomposite could be a sustainable alternative to traditional materials, reducing the environmental impact of construction and furniture production. As the demand for eco-friendly and durable materials continues to grow, this research paves the way for future developments in the field. The potential for this biocomposite to be used in various applications, from construction to furniture, is immense, and its commercial impact could be significant.
The research, published in the journal eXPRESS Polymer Letters, underscores the importance of innovation in sustainable materials. As the world seeks to reduce its carbon footprint, materials like the vinyl silanized MFC biocomposite offer a promising solution. The study’s findings could shape future developments in the field, driving the adoption of more sustainable and durable materials in various industries.