Nitrocotton liquid as well as preparation method and application thereof

The invention discloses nitrocotton liquid as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The nitrocotton liquid provided by the invention is prepared from the following raw materials in parts by mass: 20-40 parts of nitrocotton, 5-15 parts of polyaldehyde resin, 0.5-5 parts of an antioxidant and 40-70 parts of an organic solvent. The nitrocotton liquid disclosed by the invention is matched with the aldehyde resin and the antioxidant for use, so that the nitrocotton liquid has good storage stability and excellent yellowing resistance, can well inhibit yellowing of the nitrocotton liquid and corrosion of a paint tank, can enhance oxidation resistance and flexibility of a coating film, prevents the cracking phenomenon of the coating film due to long-term outdoor exposure, prolongs the life of the coating film, and has a good application prospect. And the product quality is improved. The nitrocotton liquid disclosed by the invention is widel