Low-emission PP material and preparation method thereof

Abstract

The invention provides a low-emission PP material and a preparation method thereof. The low-emission PP material is prepared from the following components in parts by weight: 50-60 parts of PP, 30-40parts of glass fiber, 2-5 parts of a compatilizer, 3 parts of black masterbatch, 1-5 parts of antibacterial agent and 0.2 part of an antioxidant through a double-screw extruder; the TVOC content of the low-emission PP material is less than 50 [mu] gC / g, and the odor is less than grade 4. According to the low-emission PP material and the preparation method thereof, the synergistic effect of all thecomponents in the formula achieves the low-emission effect, the added antibacterial agent nano magnesium oxide and nano zinc oxide mixture plays an unexpected role in effectively reducing the odor and TVOC of the PP material, the preparation method of the low-emission PP material is simple, the used equipment is a common water brace double-screw extruder, and large-scale production is easily realized.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a low emission PP material and a preparation method thereof. Background technique [0002] With the rapid development of the automobile industry, the improvement of people's living standards and the pursuit of a better life, health and environmental protection have become the primary selection criteria for daily necessities. The number of passenger cars continues to increase. As the main means of transportation for residents, volatile harmful substances in cars have attracted people's attention. Volatile substances produced by automotive interior materials are an important reason for affecting the air quality in the car. Therefore, the automotive industry is paying more and more attention to the issue of emission of automotive interior materials. [0003] Polypropylene (PP) resin is the material with the lowest density among general-purpose plastics, and it...

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Problems solved by technology

At the same time, there are also some disadvantages: insufficient adhesion to the paint is caused by its low surface tension; poor dimensional accuracy of injection molded parts, and after-shrinkage is caused by its large shrinkage rate and large linear expansion coefficient; poor light aging and thermal aging properties are due to Caused by tertiary carbon and hydrogen in the molecule; it is brittle at low temperature and the surface is not wear-resistant, etc.

Polypropylene may be coated with a large amount of volatile organic compounds during the modification process. If it is used in automotive interiors, it will not only cause unpleasant odors in the car, but also cause adverse effects on human health

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