Polypropylene composite material and preparation method thereof

Abstract

The invention belongs to the technical field of high polymer material mixing modification, in particular to a polypropylene composite material and a preparation method thereof. The material is prepared from the following raw materials in parts by weight: 80-120 parts of polypropylene resins, 5-15 parts of reinforcing agents, 5-15 parts of toughening agents, 1-3 parts of coupling agents, 5-20 partsof flame retardants, 1-4 parts of dispersing agents, 1-5 parts of heat stabilizers, 7-25 parts of fillers, 1-3 parts of nucleating agents, 0.5-2 parts of gloss modifiers and 2-6 parts of weathering agents. The material has high appearance glossiness, good rigidity and strength performance, long service life, light weight and simple and easy preparation.

Description

technical field

[0001] The invention belongs to the technical field of polymer material blending modification, and in particular relates to a polypropylene composite material and a preparation method thereof. Background technique

[0002] High-gloss seamless injection molding uses steam, hot oil, electric heating, etc. to rapidly heat up the mold surface, so that the surface temperature of the molding cavity reaches above the glass transition temperature of the resin plastic, and then starts injection molding. When the cavity filling process is completed Immediately after using cooling media such as water, oil, and cold air, the temperature on the surface of the mold cavity is rapidly dropped below the glass transition temperature of the resin plastic, thereby changing the surface characteristics of plastic products. An advanced injection molding processing method.

[0003] Large-scale appearance parts such as automotive bright ventilation grilles, car bumpers, and flat-pane...