Low-odor low-formaldehyde plastic and application thereof in automobiles

Abstract

The invention discloses a low-odor low-formaldehyde plastic and an application thereof in automobiles. The plastic is prepared from the following raw materials in parts by weight: 50-80 parts of polypropylene, 1-10 parts of polyethylene, 6-15 parts of POE plastic, 10-20 parts of inorganic filler, 0.5-2 parts of antioxidant, 0.1-1 parts of hard calcium, 0.5-2 parts of color master batch and 0.01-0.5 parts of CexMn1-xO2 solid solution. According to the method, a catalyst CexMn1-xO2 solid solution with a catalytic oxidation effect on formaldehyde is used; and the catalyst can still keep stable under high temperature and high pressure, the original catalytic action is exerted, and trace formaldehyde gas generated in the production process is oxidized into carbon dioxide and water to volatilize, so that the effect of reducing the plastic smell and the formaldehyde concentration is achieved.

Description

technical field [0001] The invention belongs to the field of modified plastics, in particular to a plastic with low odor and low formaldehyde and its application in automobiles. Background technique [0002] Generally, automotive interior parts and foaming materials will inevitably release harmful volatile organic compounds (VOCs) during use due to the limitations of raw materials and manufacturing processes. As a means of transportation, when driving daily, the car body is exposed to direct sunlight, and the amount of convective heat exchange with the outside world is large, making it easier for harmful substances to volatilize. At the same time, the space inside the car is narrow and airtight, and harmful gases are easy to accumulate and difficult to spread. [0003] The main VOCs in the car are formaldehyde, acetaldehyde, benzene, toluene, ethylbenzene, xylene, and acetone. Most of the automotive interior parts contain a certain amount of volatile organic compounds, whi...

AI Technical Summary

Problems solved by technology

However, this method still has some disadvantages

In the patented low-odor modified PP plastic synthesis, inert gas or nitrogen needs to be fed continuously, and a vacuum operation is required after the material is discharged, which invisibly increases the original cost of the plastic. In addition, the odor adsorption used in the patent The agent is a physical adsorbent mixture of molecular sieve and diatomaceous earth, which has the possibility of desorption at high temperature and has a certain impact on the smell