The invention relates to an automobile air duct and a preparation method thereof, in particular to a hollow blow molding micro-foaming automobile air duct material and a preparation method thereof. The material of the invention comprises the following components in parts by weight: 50–80 parts of polyethylene, 0–15 parts of mineral powder, 1–30 parts of polyester, 0.2–1 part of tackifier, 0.5–10 parts of foaming agent, 5–15 parts of foaming auxiliary, 0.2–0.5 part of lubricant and 0.2–0.5 part of antioxidant, and the preparation method thereof is disclosed. The hollow blow molding micro-foaming automobile air duct has the characteristics of high cell density and good apparent quality, and the automobile engine hood product prepared therefrom has the characteristics of light weight, good heat insulation effect, good dimensional stability and high qualification rate; under the condition that the overall weight of the product is reduced by more than 40%, the normal assembly and use of parts are not affected, and the purpose of lightweight is achieved.
Country Code: CN
Application Number: CN201810251896.9
