Abstract:
Objective
To prepare a kind of denture base nanocomposite.
Methods
Organic montormollontrite （OMMT） was prepared using montormollontrite sodium and cetyltrimethylammonium bromide. OMMT powder was mixed with polymath methacrylate） （PMMA） powder to form PMMA／OMMT mixture powder. The dough of PMMA／OMMT mixture powder and Meth methacrylate liquid was processed by heating in water to form denture base nanocomposite. XRD and TEM were used to study the structure and dispersion of MMT in the PMMA matrix.
Results
The silicate layers of OMMT were exfoliated into nanometeric particles， which uniformly dispersed in the PMMA matrix. The nanocomposites of containing 1% and 3% OMMT were partially exfoliated and partially intercalated structure， while the nanocomposites of containing 5% and 10% OMMT were mainly intercalated structure.
Conclusions
Nano-montormollotrite can be observed in the denture base resin. The addtion of montormollotrite in polymeth methacrylate proves to be a good method torprepare an improved denture base materials.
Key words:
Nanomaterials,
Denture base resin,
Organic montormollontrite,
Transmission electron microscope
Zhi-an LI, Qun XIAO, Jun YANG, Hong-bo LI, Xuan-tong XIA. Preparation of a denture base namocomposite improved by organic montornollotrite[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2007, 01(01): 18-20.