Bogna Sztorch, Julia Głowacka, Dariusz Brząkalski, Eliza Romanczuk-Ruszuk, Bogdan Marciniec, Robert E. Przekop
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引用次数: 0
Abstract
In recent years, there has been a growing research interest focused on employing organosilicon compounds, including silsesquioxanes, as modifiers for different polymers. This work describes the methodology for obtaining a new nanocomposite using functionalized spherosilicates, which belong to the general group of silsesquioxane compounds. These modifiers are used as additives to polylactide to improve its properties in the context of the additive technology fused deposition modeling/fuse fabrication filament. The developed materials were characterized by better rheology compared to neat PLA. Differential scanning calorimetry analysis of the additives confirmed their reactive nature. Based on water contact angle tests, it was observed that up to 1.5% of the load, none of the additives influenced the wetting of the material surface. Microscopic images revealed visible agglomerations for the OSS-6MA-2TMOS system, while in samples with a lower share of methacrylic groups, very good dispersion of the additive in the matrix was observed. Also, the microscopic observations showed better melting of the composite layers containing additives in the 3D printing process, combined with the appropriate printing parameters, can ultimately produce more robust objects with fewer voids and discontinuities. The addition also resulted in an increase in mechanical parameters, mainly in terms of bending strength and impact strength.
期刊介绍:
Journal of Materials Research (JMR) publishes the latest advances about the creation of new materials and materials with novel functionalities, fundamental understanding of processes that control the response of materials, and development of materials with significant performance improvements relative to state of the art materials. JMR welcomes papers that highlight novel processing techniques, the application and development of new analytical tools, and interpretation of fundamental materials science to achieve enhanced materials properties and uses. Materials research papers in the following topical areas are welcome.
• Novel materials discovery
• Electronic, photonic and magnetic materials
• Energy Conversion and storage materials
• New thermal and structural materials
• Soft materials
• Biomaterials and related topics
• Nanoscale science and technology
• Advances in materials characterization methods and techniques
• Computational materials science, modeling and theory