A modified inorganic fiber material, preparation method thereof, automotive headliner composite material, sound-absorbing composite material, and vehicle

3-5. (canceled)

The modified inorganic fiber material according to claim 4, wherein the zeolite molecular sieve has a particle size of 0.5 μm to 10 μm.

The modified inorganic fiber material according to claim 4, wherein the zeolite molecular sieve comprises micropores with a pore size of 0.3 nm to 0.7 nm and mesopores with a pore size of 10 nm to 30 nm.

The modified inorganic fiber material according to claim 4, wherein the zeolite molecular sieve comprises a ZSM-5 molecular sieve.

A vehicle headliner composite material, comprising a polyurethane layer, inorganic fiber material layers disposed respectively on two sides of the polyurethane layer, and a decorative layer, wherein the inorganic fiber material layer is made of the modified inorganic fiber material comprising:

• a porous inorganic fiber material and a porous powder material, the porous powder material being distributed, through the bonding of an adhesive, on a surface of the porous inorganic fiber material and within a three-dimensional network structure of an internal space of the porous inorganic fiber material;
• wherein a content of the porous powder material and the adhesive is 10 g/m2 to 200 g/m2, and the content=(C−B)/A, where A and B represent a surface area and a mass of the porous inorganic fiber material, respectively, with units of m2 and g respectively, and C represents a total mass of the modified inorganic fiber material, with a unit of g.

(canceled)

(canceled)