The invention relates to a tool box and a preparation method thereof, in particular to a hollow blow molding micro-foaming tool box and a preparation method thereof. The material involved in the invention comprises the following components in parts by weight: 60–90 parts of copolymer polypropylene, 5–30 parts of melt-blown polypropylene, 0–20 parts of filler, 1–20 parts of regulator, 0.5–12 parts of foaming agent, 1–10 parts of foaming auxiliary, 0.5–2 parts of lubricant, 0.2–1 part of antioxidant and 0.2–1 part of light stabilizer, and the preparation method thereof is disclosed. The invention obtains a tool box with a fine micro-pore structure. It effectively improves the anti-sag performance and transverse tensile performance of polypropylene melt during blow molding micro-foaming, meets the requirement of free adjustment of product wall thickness distribution, ensures the smooth progress of polypropylene hollow blow molding micro-foaming, and the product has remarkable lightweight characteristics; the invention also has excellent dimensional stability, drop resistance and seismic performance. The preparation method provided by the invention has shorter molding cycle, low production cost, high product qualification rate and is easy to realize industrialization.
Country Code: CN
Application Number: CN201810251897.3
