Low-voc and low-odor masterbatch for polypropylene and its preparation method and application

Abstract

The invention belongs to the field of plastics and provides a low-VOC and low-odor masterbatch for polypropylene, a preparation method and application thereof. The low-VOC and low-odor masterbatch for polypropylene contains the following components blended: polypropylene resin, octaphenylsilsesquioxane and antioxidant; wherein, the polypropylene resin is 50-90 parts by weight, eight The phenylsilsesquioxane is 10-50 parts by weight; the octaphenylsilsesquioxane is octaphenylsilsesquioxane treated with water extraction. Using the low-VOC and low-odor masterbatch prepared by the present invention can effectively suppress the generation of VOC and odor in polypropylene materials, and applying it to polypropylene materials can make the total volatile organic compounds (TVOC) and odor in polypropylene materials significant Reduced, well solved the deficiencies of the prior art. Moreover, the operation process is simple and reliable, and the input cost is low, so it can be widely used in fields such as high-end automotive interior parts, medical and food packaging materials with high environmental protection requirements.

Description

technical field [0001] The present invention relates to the field of plastics, in particular to a low-VOC and low-odor masterbatch for polypropylene, a method for preparing the low-VOC and low-odor masterbatch for polypropylene, and the application of the low-VOC and low-odor masterbatch for polypropylene . Background technique [0002] Polypropylene (PP) has been widely used in various fields of people's life because of its excellent comprehensive properties, wide range of sources, high quality and low price. However, the existing polypropylene materials and products all have the problems of releasing volatile organic compounds (VOC) and odors to pollute the environment and endanger people's health in varying degrees, which largely limits the use of polypropylene materials in high-end products with high environmental protection requirements. Applications in automotive interior parts, medical and food packaging materials, etc. Therefore, the research and development of env...

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Problems solved by technology

For example, CN101570612A reduces VOC content by adding an inorganic photocatalyst to decompose small organic molecules, but the components are complex and the effect is limited

CN101255252A reduces the VOC of material by adding organic matter repellant (such as isopropanol / water), but there are compatibility and persistence problems in this way

Although the aforementioned method of using adsorbent can play a certain role in reducing the VOC of polypropylene, there is still a problem of adsorption balance. At higher temperatures, the balance moves to the direction of desorption, resulting in the possibility of re-release of VOC in polypropylene material later. Hidden danger

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