Method for surface modification of dental inorganic filler
The invention relates to a method for surface modification of dental inorganic filler. The method comprises the steps of introducing amino to the surface of nanometer inorganic filler, and obtaining amino nanometer inorganic filler; introducing an initiator through amino, and obtaining nanometer ino...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention relates to a method for surface modification of dental inorganic filler. The method comprises the steps of introducing amino to the surface of nanometer inorganic filler, and obtaining amino nanometer inorganic filler; introducing an initiator through amino, and obtaining nanometer inorganic filler with the surface provided with the initiator; scattering monomers and the nanometer inorganic filler with the surface provided with the initiator into an organic solvent, triggering a polymerization reaction, and obtaining nanometer inorganic filler with the surface provided with grafted polymer; and obtaining nanometer inorganic filler with the surface containing double bonds finally through acylation reaction. The surface modification method is mild in reaction condition, the grafting rate is controllable, and the method is favorable for improving dispersing performance of the inorganic filler in a dental composite material and can improve organic-inorganic phase interface bonding strength.
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