Coating for textile fabric surface and preparation method thereof

The invention belongs to the technical field of textile material treatment, and particularly relates to a coating for the textile fabric surface and a preparation method thereof. The coating for the textile fabric surface is prepared from, by weight, one part of component A and one part of component B, the component A is prepared from, by weight, 450-850 parts of polyether polyol, 200-500 parts of diphenylmethane diisocyanate and 0.1-1 part of polymerization inhibitor, and the component B is prepared from, by weight, 50-450 parts of amine-terminated polyether, 20-150 parts of crosslinking agents, 250-500 parts of nano materials, 1-5 parts of antioxidants, 1-3 parts of water quality stabilizers, 2-20 parts of catalysts, 0.1-1 part of ultraviolet light absorbents and 50-250 parts of plasticizers. The coating for the textile fabric surface has better elasticity and strength and excellent abrasion resistance and low-temperature flexibility, the properties of heat resistance, low temperature resistance, solvent resistance, water resistance and oil resistance are achieved, and damage to human body and pollution to environment are small. The preparation method is simple, feasible and easy to achieve.