Mildew-proof antibacterial silicone sealant composition and preparation method thereof

The invention relates to the field of materials, in particular to a mildew-proof antibacterial silicone sealant composition and a preparation method thereof. 2-(3, 4-cyclohexene oxide) ethyltrimethoxysilane, 3-(2, 3-epoxypropoxy) propyltrimethoxysilane or isocyanate propyltriethoxysilane is selected as a modifier to chemically modify chitosan oligosaccharide with antibacterial activity, and siloxane groups are introduced into the chitosan oligosaccharide structure, so that the anti-mildew and antibacterial activity of the chitosan oligosaccharide is not influenced, and meanwhile, the mildew-proof and antibacterial silicone sealant has the basis of chemically modifying the silicone sealant, can greatly prolong the mildew-proof and antibacterial effective duration of the silicone sealant, and has no obvious negative influence on the physical properties such as adhesion, toughness, strength and the like of the silicone sealant. 本发明涉及材料领域，特别是涉及一种防霉抗菌硅酮密封胶组合物及其制备方法。本发明通过选用2-(3,4-环氧环己烷)乙基三甲氧基硅烷、3-(2,3-环氧丙氧)丙基三甲氧基硅烷