| abstract |
The invention relates to a preparation method of polysiloxane emulsion, which comprises the step of carrying out shuttle crosslinking on polymer emulsion formed by hydroxyl-containing polysiloxane, a crosslinking agent, a catalyst and an emulsifier and polymer emulsion formed by vinyl polysiloxane, hydrogen-containing polysiloxane, the emulsifier and the catalyst under the action of a third catalyst to obtain stable polymer emulsion, wherein the polymer emulsion can form an elastic organic silicon film under the room temperature condition when exposed in the air, and can be used as a waterproof agent and a mold release agent in buildings, concrete, ceramics and paper. |