Polypropylene self-reinforced composite material and forming method for travelling case

Abstract

The invention discloses a polypropylene self-reinforced composite material. The polypropylene self-reinforced composite material is prepared from the following raw materials in parts by weight: 2-3 parts of diethylenetriamine, 180-200 parts of polypropylene, 10-14 parts of graphene oxide, 3.5-4 parts of carbon fibers, 10-15 parts of sodium acrylate, 0.3-0.4 part of initiator, 1-2 parts of stearate, 2-4 parts of trisnonyl phenyl phosphite, 3-5 parts of microcrystalline paraffin, 0.3-0.7 part of lauryl dimethyl amine oxide and 1-4 parts of glycidol. According to the polypropylene self-reinforced composite material, through introducing the modified graphene oxide, the mechanical strength and toughness of a polypropylene matrix are effectively improved; due to intercalated introduction of the carbon fibers and the like, the mechanical properties of a matrix material are further improved; and a travelling case is made from the material, so that the mechanical strength of the travelling case can be improved, and the breakage rate of the travelling case is lowered.

Description

technical field [0001] The invention belongs to the box body field, and in particular relates to a polypropylene self-reinforcing composite material and a molding method of a suitcase. Background technique [0002] Polypropylene (PP) is a thermoplastic resin and one of the five general-purpose resins. The appearance is white pellets, odorless and non-toxic. Due to the regular crystal structure, it has easy processing, impact strength, flex resistance and good electrical insulation. Advantages, it has a wide range of applications in the automotive industry, household appliances, electronics, packaging and building materials and furniture; [0003] Most of the suitcase materials currently used are ABS resin, which has a high shell strength and is not affected by water, inorganic salts, alkalis and various acids, and is not easily damaged. However, its surface hardness is high, toughness is poor, and the cost of ABS materials is high; [0004] Therefore, the object of the pres...

AI Technical Summary

Problems solved by technology

[0003] Most of the suitcase materials currently used are ABS resin, which has a high shell strength and is not affected by water, inorganic salts, alkalis and various acids, and is not easily damaged. However, its surface hardness is high, toughness is poor, and the cost of ABS materials is high;