Polypropylene composite material with low density, high performance and flocking-like effect, and preparation method thereof

Abstract

The invention discloses a polypropylene composite material with low density, high performance and a flocking-like effect, and a preparation method thereof. The polypropylene composite material consists of the following raw materials in parts by weight: 67-82 parts of polypropylene, 5-20 parts of talcum powder, 10-20 parts of elastomer, 0.1-2 parts of fiber spot, 0.1-2 parts of antioxygen and 0-2 parts of other auxiliary agent. On the basis of the basic formula of the polypropylene composite material, polypropylene base material formula design is optimized, the contents of talcum powder fillingcomponents are reduced, the polypropylene base material and the talcum powder perform a synergistic effect to prepare the polypropylene composite material with low density and high performance. In addition, a fiber spot substance is introduced into the polypropylene composite material system, and has the characteristics of small dosage, easiness in adding and the like, the mechanical performanceof the material is not affected, and the addition of the fiber spot can be used for lowering the surface plastic feeling and glossiness of the polypropylene composite material so as to present a certain matte and flocking-like effect.

Description

technical field [0001] The invention belongs to the technical field of polymer modification and processing, and relates to a polypropylene composite material with low density, high performance and imitation flocking effect and a preparation method thereof. Background technique [0002] With the rapid development of the automobile industry and the increasingly serious environmental and energy problems, how to reduce the weight of the whole body and reduce energy consumption to further alleviate the pressure on the environment has become an important issue for the sustainable development of the entire automobile industry. [0003] As the most used material for auto parts, polypropylene composite materials have been widely used in automobile parts such as instrument panels, door panels, pillars, bumpers, etc. Obviously, the lightweight research of polypropylene composite materials has obviously become the focus of the entire automotive composite materials industry. research foc...

AI Technical Summary

Problems solved by technology

At present, the research focus of the lightweight technology of polypropylene composites is mainly focused on filling some ultra-fine nano-scale fillers, carbon fiber reinforcement, and micro-foaming. However, these methods have more or less limitations. , either from the cost pressure of materials, or the pressure from the supporting equipment required by materials, which obviously cannot meet the mass production requirements without increasing costs that OEMs and parts factories hope

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