Dielectric and mechanical properties of poly(butylene succinate) thin film composites incorporated with barium strontium titanate powder

ABSTRACT

High dielectric constant barium strontium titanate (Ba_0.7Sr_0.3TiO₃ or BST) powder was prepared by sol-gel method for using as a filler in poly(butylene succinate) (PBS) composite with 0–3 connectivity system. Moreover, thermal and dielectric properties of poly(butylene succinate) integrated with BST powder were studied. The results showed the success of improving thermal stability and dielectric constant of poly(butylene-succinate) by increasing amount of BST powder. Therefore, the prepared PBS-BST composite thin films with good dielectric properties, flexibility, and processability could be applicable for the thin film capacitor for high-frequency electronic devices.

Keywords:

• Barium strontium titanate
• sol-gel reaction
• thin film composite
• poly(butylene succinate)

Funding

The author thank the partial scholarship and partial funding of the research work provided by the Petroleum and Petrochemical College, Chulalongkorn University, Department of Materials Engineering, Kasetsart University and Kasetsart University Research and Development Institute (KURDI).