Nucleating agent NA-11 is a second-generation aryl phosphate ester salt-based rigidity-enhancing and anti-permeability nucleating agent suitable for crystalline polymers. It is characterized by high melting point, outstanding thermal stability, strong nucleating ability, and the effect of improving product transparency, rigidity, tensile strength, creep resistance, etc. is very significant, and it is suitable for various polypropylene modified products. Compared with DBS second-generation nucleating transparent agents, it has the characteristics of no aldehyde odor, no precipitation, and no discoloration, but the anti-reflection effect is slightly worse than that of DBS-based nucleating transparent agents. The improvement in rigidity is very large.