A kind of low VOC natural fiber composite material, preparation method and application thereof

Abstract

The invention discloses a low-VOC natural fiber composite material, a preparation method and an application thereof. In the method, a VOC capture agent is sprayed into a mixed fiber of natural fiber and polypropylene after opening; the sprayed natural fiber The mixed fiber of fiber and polypropylene is processed into a fiber mat through a carding and needle-punching process; and the fiber mat is subjected to a heat-pressing process to prepare the low-VOC natural fiber composite material. The invention reduces the release amount of VOC of the natural fiber composite material by adding a VOC capture agent in the preparation process of the natural fiber composite material, and at the same time greatly improves the mechanical properties of the natural fiber composite material.

Description

technical field [0001] The invention relates to a fiber composite material, in particular to a low-VOC natural fiber composite material, a preparation method and an application thereof. Background technique [0002] Natural fiber composites are more and more used in the field of automotive interiors because of their wide range of sources, low cost, and environmental friendliness. In recent years, due to the rapid development of polypropylene material engineering modification technology, the application of polypropylene materials in household and automobile fields has become more and more extensive. Composite materials made of these two raw materials are also increasingly used in the automotive field. However, the main problem with the composite materials made of these two raw materials is: in the process of use, the natural fiber polypropylene composite material reaches the After a certain temperature, natural fibers and polypropylene will release volatile organic compounds...

AI Technical Summary

Problems solved by technology

Composite materials made of these two raw materials are also increasingly used in the automotive field. However, the main problem with the composite materials made of these two raw materials is: in the process of use, the natural fiber polypropylene composite material reaches the After a certain temperature, natural fibers and polypropylene will release volatile organic compounds (volatile organic compounds, VOC), among which the more harmful ones are benzene, acetone, toluene, ethylbenzene, xylene, etc., which will seriously endanger the occupants of the car health

However, the existing preparation schemes have the following defects: scheme 1, there is a possibility of secondary release after the adsorbent reaches the adsorption saturation state, and the adsorption capacity of the adsorbent after reaching the saturation state is also weakened; scheme 2, after forming Adding additives such as fillers, tougheners, odor absorbers, antioxidants, lubricants and light stabilizers in the process increases the production cost of the product

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