ポリマー系ナノ複合材料の誘電特性向上のためのカップリング剤の応用

Overview

This study presents a low-cost solution-casting process to enhance the compatibility between polymer matrices and surface modified BaTiO₃ fillers. The method effectively improves the energy density of polymer-based nanocomposites.

Key Study Components

Area of Science

• Polymer Science
• Nanocomposites
• Energy Storage Materials

Background

• Surface modification of ceramic fillers can enhance their compatibility with polymer matrices.
• Improved wettability at the ceramic-polymer interface is crucial for performance.
• High-performance film capacitors require flexible composite materials.
• Commercial coupling agents can be used to modify ceramic nanofillers.

Purpose of Study

• To develop a method for improving the energy storage performance of polymer-based nanocomposites.
• To investigate the effects of coupling agents on the properties of ceramic-polymer interfaces.
• To provide a cost-effective solution for producing flexible composites.

Methods Used

• Preparation of KH550 solution with ethanol-water solvent.
• Ultrasonication treatment of BaTiO₃ nanoparticles in KH550 solutions.
• Coating of BT nanoparticles with varying amounts of coupling agent.
• Evaporation of solvent at controlled temperatures in a vacuum oven.

Main Results

• Good wettability was achieved at the ceramic-polymer interface.
• Enhanced energy storage performances were observed with optimal coupling agent amounts.
• The method is suitable for the preparation of flexible composites.
• Results indicate potential applications in high-performance film capacitors.

Conclusions

• The developed solution-casting process is effective and low-cost.
• Surface modification significantly improves composite performance.
• This approach can facilitate advancements in energy storage technologies.

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