Preparation and application of mildew-proof termite-proof ethyl lactate type silicone sealant

The invention relates to the technical field of sealants, in particular to preparation and an application of a mildew-proof and ant-proof ethyl lactate type silicone sealant. The preparation method ofthe sealant comprises the following steps: The preparation method comprises the following steps: (1) uniformly stirring and mixing an ionic liquid, a plant extract and an inorganic filler to obtain amixture A for later use; (2) blending the mixture A with alpha, omega-dihydroxy polysiloxane, dehydrating, blending and kneading, and cooling to obtain a base material; (3) adding a plasticizer intothe base material, and uniformly stirring and mixing to obtain a mixture B; and (4) sequentially adding the cross-linking agent, the coupling agent, the catalyst and the mildew preventive into the mixture B, and stirring and mixing to obtain the sealant. The sealant disclosed by the invention adopts the cross-linking agent to remove ethyl lactate, is harmless to the environment, can be used in damp and hot environments such