| abstract |
The present application relates to the field of leather materials, and specifically discloses an anti-fouling and water-repellent composite leather and a preparation method thereof. An antifouling and water-repellent composite leather, comprising a dermis layer and a protective layer, the protective layer comprising a polyurethane layer and a handle layer sequentially coated on the dermis layer from the inside to the outside, and the handle layer is composed of an organosilicon finishing agent The silicone finishing agent includes the following parts by weight: 20-30 parts of polysiloxane, 0.2-2 parts of emulsifier, 1-5 parts of alcohol solution, 1-3 parts of collagen and 200-300 parts of water , the polysiloxane is a graphene-modified polysiloxane, and the graphene is a graphene oxide functionally modified by a silane coupling agent; its preparation method is: S1, prepared with an organosilicon finishing agent; S2, composite leather preparation. The composite leather of the present application can be used in the fields of luggage, clothing and the like, and has the advantages of water repellency, antifouling and smooth hand feeling. |