Mechanical and Barrier Properties of PVP-Carbon Dot Nanocomposite Films

Abstract

This research reported carbon dot were synthesized form citric acid and urea through a single step microwave process and Poly Vinyl Pirrolidone (PVP) films composited by carbon dot were prepared. The effects of different composition carbon dots on mechanical strength of films and water vapour barrier were evaluated. Highest mechanical yielded composite film were analyzed their thermal stability. Average of carbon dot diameter was found 90.61 nm and polydispersity indice 0.396. Different composition carbon dot exhibit significant improvement in tensile strength and modulus. Water permeablity of films varieate with content of carbon dot. The presence of carbon dot had a negligible effect on Tg of film and show melting process.

Sintesis Oksida Grafena dari Arang Tempurung Kelapa Untuk Aplikasi Antibakteri dan Antioksidan

“…Kelanjutan dari penelitian sebelumnya yang mempelajari sifat mekanik dan penghalang dari partikel karbon nano [5] adalah mengamati karakteristik dasar dari partikel nano yang meliputi distribusi ukuran partikel, gugus fungsi dan ciri sudut hamburan oksida grafena. Selanjutnya karbon nano dalam bentuk oksida grafena ini akan diuji terhadap aktivitas sebagai antioksidan dan antibakteri yang selama ini menggunakan grafena atau oksida grafena berbahan dasar grafit…”