A simple route towards polycarbonate-silica nanocomposite

作者：Chau Joseph Lik Hang^*; Hsu Steve Lien Chung; Chen Yi Ming; Yang Chih Chao; Hsu Peter C F

来源：Advanced Powder Technology, 2010, 21(3): 341-343.

DOI：10.1016/j.apt.2010.02.005

• Nanocomposite
• Nanopowder
• Silica
• Polycarbonate
• Hardness

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 SiO(2) 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.

• 出版日期2010-5