water-based silicone is silicon resin with water as dispersion medium silicon resin emulsion, the current widely used to focus on organic silicon modified coatings, such as silicone modified acrylic emulsion, silicon modified polyurethane emulsion, silicone modified polyester emulsion, etc., organic silicon, introduced in the traditional polymer emulsion, can enhance its resistance to ageing, waterproof, high and low temperature properties, such as, hard. Through in the process of emulsion polymerization, the introduction of organic silicon in the molecular structure of the polymer chain section, commonly used organic silicon precursor for silane coupling agent, silane coupling agent 171560570 and so on, for example, the silane coupling agent are three faculties alkoxy structure, in the water phase system alkoxy hydrolysis into hydroxyl, hydroxy further dehydration condensation, to form crosslinked structure, When connecting to spend will affect the stability of the emulsion, cause gelation, cannot use, so for the amount of silane coupling agent is a certain limitation, generally in 1 ~ 10%, the dosage is too small modification effect is not obvious, influence the stability of the emulsion dosage is too big, dosage of restriction determines the effect of the silicone modified is limited, even is not obvious.