A simple route towards polycarbonate–silica nanocomposite

Autor: Peter C.F. Hsu, Steve Lien-Chung Hsu, Yi Ming Chen, Chih-Chao Yang, Joseph Lik Hang Chau
Rok vydání: 2010
Předmět:
Zdroj: Advanced Powder Technology. 21:341-343
ISSN: 0921-8831
DOI: 10.1016/j.apt.2010.02.005
Popis: This work reports the preparation of polycarbonate–silica nanocomposite by simple one-step injection moulding process. Silica nanopowder was first functionalized with a silane coupling agent, (3-methacryloxypropyl)trimethoxysilane (MPS). Polycarbonate pellets mixed with 5 wt% functionalized-silica nanopowders were then compounded by using a Brabender counter-rotating twin screw compounder followed by subsequent injection molding process. The distribution of silica was examined using transmission electron microscopy (TEM). The FT-IR spectra were used to investigate the MPS-modified SiO2 nanopowders. The thermal properties of the nanocomposite were studied by differential scanning calorimeter (DSC). Pencil hardness is increased from B to HB with the incorporation of 5 wt% silica nanopowder.
Databáze: OpenAIRE