Bahloul Chaymae, Eddiai Adil, Cherkaoui Omar, Mazraoui M 'hammed, Semlali Fatima-Zahra, El Achaby Mounir
Materials Science, Energy and Nanoenineering Department (MSN), Mohammed VI Polytechnic University (UM6P) Lot 660 - Hay Moulay Rachid 43150 Ben Guerir Morocco
Condensed Matter Physics Laboratory, Ben M'sick Faculty of Sciences, Hassan II University of Casablanca Morocco.
RSC Adv. 2025 May 9;15(19):15218-15239. doi: 10.1039/d5ra01605c. eCollection 2025 May 6.
This study demonstrates a systematic approach to developing high-performance poly(vinylidene fluoride) (PVDF) nanocomposites through the strategic incorporation of metal phosphate nanostructures synthesized distinct methodologies. Ni-P particles were synthesized using hydrothermal processing and Ag-P a precipitation technique, while Co-P and Co-Pn were prepared through co-precipitation and solvothermal routes, respectively. These diverse synthetic approaches yielded particles with controlled crystallinity, morphology, and surface properties, as verified through comprehensive XRD, FTIR spectroscopy, Raman and SEM. The integration of these nanostructures into the PVDF matrix significantly promoted electroactive β-phase formation, with improvements ranging from 68% to 96%, with optimal transformation typically achieved at 3 wt% loading. Mechanical characterization revealed remarkable property enhancements, with PVDF/3Co-Pn exhibiting an unprecedented 181.83% increase in tensile strength and a 184.76% improvement in Young's modulus. Thermogravimetric analysis demonstrated substantial thermal stability enhancement, with PVDF/7Ni-P showing a 24.92 °C increase in onset degradation temperature. Ferroelectric measurements indicated that PVDF/7Co-P composites achieved superior remnant polarization with a 200% increase, while PVDF/3Co-P demonstrated optimal maximum polarization with a 75% improvement. Importantly, this research establishes clear correlations between synthesis methodology, resultant nanoparticle characteristics, and composite performance, providing critical insights into structure-property relationships in metal phosphate-PVDF systems. These findings advance the fundamental understanding of interface engineering in polymer nanocomposites and establish design principles for developing advanced materials for flexible electronics, energy storage devices, and sensing technologies.
本研究展示了一种系统方法，通过战略性地引入采用不同合成方法制备的金属磷酸盐纳米结构，来开发高性能聚偏氟乙烯（PVDF）纳米复合材料。采用水热法合成了Ni-P颗粒，采用沉淀技术合成了Ag-P颗粒，而Co-P和Co-Pn分别通过共沉淀法和溶剂热法制备。通过综合XRD、FTIR光谱、拉曼光谱和SEM验证，这些不同的合成方法得到了具有可控结晶度、形态和表面性质的颗粒。将这些纳米结构整合到PVDF基体中显著促进了电活性β相的形成，改善幅度在68%至96%之间，通常在3 wt%的负载量下可实现最佳转变。力学性能表征显示性能有显著提高，PVDF/3Co-Pn的拉伸强度提高了前所未有的181.83%，杨氏模量提高了184.76%。热重分析表明热稳定性显著提高，PVDF/7Ni-P的起始降解温度提高了24.92℃。铁电测量表明，PVDF/7Co-P复合材料的剩余极化强度提高了200%，具有优异的性能，而PVDF/3Co-P的最大极化强度提高了75%，表现出最佳性能。重要的是，本研究明确了合成方法、所得纳米颗粒特性与复合材料性能之间的相关性，为金属磷酸盐-PVDF体系中的结构-性能关系提供了关键见解。这些发现推进了对聚合物纳米复合材料界面工程的基本理解，并为开发用于柔性电子、储能器件和传感技术的先进材料确立了设计原则。
