| 1. | Wilczewski S.♦, Skórczewska K.♦, Tomaszewska J.♦, Osial M., Dąbrowska A.♦, Nikiforow K.♦, Jenczyk P., Grzywacz H., Graphene Modification by Curcuminoids as an Effective Method to Improve the Dispersion and Stability of PVC/Graphene Nanocomposites, Molecules, ISSN: 1420-3049, DOI: 10.3390/molecules28083383, Vol.28, No.8, pp.1-25, 2023 Keywords:graphene, curcuminoids, poly(vinyl chloride), nanocomposites stability, polymer films Affiliations:| Wilczewski S. | - | other affiliation | | Skórczewska K. | - | other affiliation | | Tomaszewska J. | - | other affiliation | | Osial M. | - | IPPT PAN | | Dąbrowska A. | - | University of Warsaw (PL) | | Nikiforow K. | - | other affiliation | | Jenczyk P. | - | IPPT PAN | | Grzywacz H. | - | IPPT PAN |
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| 2. | Wilczewski S.♦, Skórczewska K.♦, Tomaszewska J.♦, Lewandowski K.♦, Studziński W.♦, Osial M., Jenczyk P., Grzywacz H., Domańska A.♦, Curcuma longa L. Rhizome Extract as a Poly(vinyl chloride)/Graphene Nanocomposite Green Modifier, Molecules, ISSN: 1420-3049, DOI: 10.3390/molecules27228081, Vol.27, No.8081, pp.1-18, 2022Abstract:In this work, a method to increase the dispersion of graphene (GN) in the matrix of rigid
poly(vinyl chloride) (PVC) by using a natural plant extract from Curcuma longa L. (CE) is proposed. Currently, despite the increasing number of reports on the improvement of GN dispersion in PVC blends, still there is a need to find environmentally friendly and economical dispersion stabilizers. We proposed a stabilizer that can be easily obtained from a plant offering thermal stability and high effectiveness. PVC/GN nanocomposites stabilized with the proposed extract were investigated by SEM, AFM (structure), TGA, and Congo red test (thermal properties). Additionally, static and dynamic mechanical properties and electrical resistivity were measured. The use of CE as a graphene dispersant improved its dispersion in the PVC matrix, influenced tensile properties, increased the storage modulus and glass transition temperature, and extended the thermal stability time of nanocomposites. In this work, a CE extract is proposed as an efficient eco-friendly additive for the production of nanocomposites with an improved homogeneity of a nanofiller in the matrix and promising characteristics.
Keywords:nanocomposites,graphene,poly(vinyl chloride),curcuma extract Affiliations:| Wilczewski S. | - | other affiliation | | Skórczewska K. | - | other affiliation | | Tomaszewska J. | - | other affiliation | | Lewandowski K. | - | other affiliation | | Studziński W. | - | other affiliation | | Osial M. | - | IPPT PAN | | Jenczyk P. | - | IPPT PAN | | Grzywacz H. | - | IPPT PAN | | Domańska A. | - | other affiliation |
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