نوع مقاله : سایر
نویسندگان
1 پژوهشگاه پلیمر و پتروشیمی ایران، صندوق پستی 115 - 149
2 پژوهشگاه پلیمر و پتروشیمی ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In recent years, one of the advances made in the plastics and composites industry is the development and commercialization of polymer-based nanocomposites. Polymer nanocomposites based on polyolefin thermoplastics and elastomers, and mineral and non-mineral fillers have attracted attention in engineering applications, including the automotive, aerospace, construction, and medical equipment industries. PP/EPDM-based nanocomposites are of great importance as widely used blends in various manufacturing industries. Polypropylene is one of the most widely used thermoplastics due to its low density, high thermal stability, high efficiency, and processability. Low impact strength at low temperatures and high strain rate have limited the use of polypropylene. In this article, research on improving the properties of PP/EPDM blends with various nanoparticles is discussed. Although blending polypropylene with rubber improves the impact strength of the material, it reduces some mechanical properties such as modulus and hardness. Adding a very small percentage of reinforcements such as clay nanoparticles can significantly improve the mechanical and thermal properties. Nanoparticles used in the production process of nanocomposites often include clay, silica compounds, and carbon and graphite compounds in order to produce nanocomposites with special applications. The most important parameters affecting the production process of PP/EPDM nanocomposites are the uniformity of dispersion, the presence of functional groups on the surface of the nanoparticles, and the production method. Research also shows that the properties of nanocomposites are improved compared to the pure blend due to changes in the interface properties and restrictions on the movement and displacement of polymer chains.
کلیدواژهها [English]
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