Low TVOC polypropylene composite for motor vehicles and preparation method thereof

Abstract

The invention discloses a low TVOC polypropylene composite for motor vehicles and a preparation method thereof. A hydrogen type high silica alumina ratio porous molecular sieve is added to the TVOC polypropylene composite for the motor vehicles. The high silica alumina ratio means that the mole ratio of silicon dioxide to aluminium oxide is more than 30.In the invention one or more hydrogen type high silica alumina ratio porous molecular sieve materials which can effectively adsorb volatile and nonpolar organic compound in the polypropylene modified material are adopted, the prepared composite material has the characteristic of low TVOC. The porous molecular sieve materials are free from lyophobic modification and have simple production technology and wide source. The low TVOC polypropylene composite for the motor vehicles has simple preparation technology and low cost.

Description

technical field [0001] The invention relates to a polypropylene composition, in particular to a low TVOC polypropylene composition and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, people have higher and higher requirements for the air quality in the car compartment, and green life has become a theme of concern for the environment and human health. The main source of air pollution in the car compartment is the volatilization of textiles, leather products or plastic products, such as leather seat covers or cloth seat covers, carpets of various materials, adhesive glue for peach wood boards, paints and paints. Various volatile organic compounds such as free formaldehyde, alkanes, benzene, toluene, xylene and aldehydes. VOC refers to easily volatile organic substances at room temperature. The more common ones are: trichloroethylene, tetrachloroethylene, formaldehyde, toluene, benzene, xylene, etc., in addition to...

AI Technical Summary

Problems solved by technology

[0004] (1) The space inside the car is narrow and the pollution is high

[0005] (2) The airtightness of the car is very strong. In most cases, the doors and windows are closed, which is not conducive to the diffusion of harmful gases

[0006] (3) The car is a mobile vehicle with a large amount of convective heat exchange with the outside world, and the external climate conditions change greatly, making it more difficult to control the temperature and other conditions

[0007] (4) The glass doors and windows of automobiles occupy a large area, exposed to sunlight for a long time, and the temperature inside the car changes greatly

[0008] (5) The population density in the car is high, which aggravates the pollution

However, in these patents, porous molecular sieves are mainly used to adsorb polar low-molecular volatiles in coatings and plastics, or to modify molecular sieves by hydrophobicity and then absorb odors and volatiles in materials, and there is no detailed introduction to porous molecular sieves. selection requirements

The production process of the hydrophobic molecular sieve used in the patent CN 1727391A is complicated, and the selection of the molecular sieve cannot meet the standard test of the current automobile OEM

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