| Polyurethane silicone montmorillonite nanocomposites |
A water-based polyurethane/montmorillonite composites silicone preparation method is to pre-polymer, by adding pre-intercalation of montmorillonite, the catalyst in the presence of the prepolymer, and, the second expansion of emulsion and water chain obtained, as described in the pre-intercalated organic montmorillonite is the quality of silicone 1 and 2 MMT to 100 copies of the polymer polyol A at 80 ~ 130 ℃ under stirring dispersion 3 ~ 8h, and then high-speed shearing machine shearing 0.5 ~ 2h obtained, as described in the following way silicone montmorillonite obtained: the clay dissolved in distilled water, add the type (I) and 50 as shown in silicone quaternary ammonium salt % ethanol mixed solution prepared at 20 ~ 90 ℃ under stirring 1 ~ 100h, after the organic silicon montmorillonite after treatment. The present invention low cost, simple process, easy operation and environmental protection. Obtained by the stability of composite materials, has broad application prospects.
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| Added：2011-01-05 11:38:43 Clicks：2420 Source： |
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