Method for manufacturing sound insulation material, sound insulation material manufactured using the method and carpet for vehicle using the same

A sound insulation material further comprising:

• 30 parts by weight to 70 parts by weight of aluminum oxide;
• 10 parts by weight to 20 parts by weight of nanoclay;
• 0.2 parts by weight to 0.8 parts by weight of an antioxidant;
• and
• 0.1 parts by weight to 0.5 parts by weight of a lubricant, with respect to 100 parts by weight of a base resin including PE.

A carpet for a vehicle comprising:

• a base flooring material;
• a sound insulation material laminated on the base flooring material, and
• a carpet fabric material laminated on the sound insulation material,
• wherein the sound insulation material further includes 30 parts by weight to 70 parts by weight of aluminum oxide, 10 parts by weight to 20 parts by weight of nanoclay, 0.2 parts by weight to 0.8 parts by weight of an antioxidant, and 0.1 parts by weight to 0.5 parts by weight of a lubricant, with respect to 100 parts by weight of a base resin including PE.