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US 6,602,933 B2Granted
In-situ co-polymerization process for preparing in-organic filler-reinforced polymer-matrix composites
AssigneeThe Hong Kong Polytechnic University
InventorsChak Yin Tang, Xiao-lin Xie
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Abstract
In-organic fillers are modified by in-situ co-polymerization of vinyl silane and another vinyl monomer. Vinyl silane couples with the filler by Si—O bonds. The remaining vinyl groups on the surface of the treated fillers then co-polymerize with the other vinyl monomer. The modified in-organic fillers treated by the in-situ co-polymerization are subsequently used to fill the polymer matrix. Tensile and impact strength of filler-reinforced polymer composites are improved remarkably.
Claims1
A method of forming a polymer-matrix composite comprising:
- modifying an in-organic filler by in-situ co-polymerization of first and second monomers;
- and
- filling a polymer matrix with the filler wherein
- the first monomer is an organic silane with a functional vinyl group selected from the group consisting of tri-ethyloxyl vinyl silane and tri-methyloxyl vinyl silane, and
- the second monomer has a functional vinyl group selected from the group consisting of methyl methacrylate, butyl methacrylate, styrene, and acrylamide.
2 more elements
Dependencies are inferred from the claim text.