▎ 摘　　要

NOVELTY - Leather coating agent comprises 30-40 pts. wt. polyurethane, 10-20 pts. wt. amino silicone oil emulsion, 5-10 pts. wt. carbon nano-tube synergistic graphene modifier, 3-7 pts. wt. wetting agent, 1-4 pts. wt. coupling agent, 2-6 pts. wt. modified alumina, and 40-45 pts. wt. acetone. USE - The leather coating agent is useful in leather coating technology field for spraying the leather product on the surface of the upper light, waterproof, anti-pollution effect. ADVANTAGE - The leather coating agent has improved long-acting luster performance of the product, and enhances the interface compatibility between the raw materials, enhances the coating efficiency, and improves the durability and durability of the coating agent. The modified alumina is provided with reinforcing effect, reinforcing gloss and durability, and can improve the alkali resistance of product. The carbon nano-tube synergistic graphene modifier is not added in the carbon nano tube, and is graphene by bentonite, so that the persistence degree variation effect is obvious, the glossiness is reduced obviously, the durability is deteriorated, and the durability of product is deteriorated at the same time. The method is simple and economical, and does not use other raw materials to replace, product improving effect are not as improved effect is obvious. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing leather coating agent comprising (i) adding polyurethane, amino silicone oil emulsion to acetone, stirring and mixing, (ii) then adding the carbon nano-tube synergistic graphene modifier, modified alumina to the product, continuously stirring and mixing fully, and (iii) finally adding wetting agent, coupling agent, allowing to stand for 1-2 hours at the temperature of 55-65℃ to obtain the leather coating agent.