{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,4]],"date-time":"2026-04-04T18:38:26Z","timestamp":1775327906377,"version":"3.50.1"},"reference-count":48,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2024,7,31]],"date-time":"2024-07-31T00:00:00Z","timestamp":1722384000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Romanian Ministry of Research, Innovation, and Digitalization","award":["PN23140201-42N\/2023"],"award-info":[{"award-number":["PN23140201-42N\/2023"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>This research investigates novel polymeric composite materials for automotive interior trim applications. The composites utilize recycled polypropylene (PPr) matrix and carboxymethylcellulose (CMC) as filler (PPr\/CMC: 100\/0, 95\/5, and 90\/10 wt.%). The materials were processed by extrusion and injection molding. Considering their intended application, the composites were evaluated for resistance to key climatic factors, i.e., temperature, humidity, and UV radiation. In addition, structural analyses and FTIR analyses were performed to assess potential heterogeneity and thermal stability. Following FTIR tests, the incorporation of carboxymethyl cellulose in polypropylene is confirmed by the detection of characteristic CMC bands for -OH, C=O, and C-O-C groups. The results indicate slight structural heterogeneity in the 5% and 10% CMC composites. However, no thermal distortions were observed in either the composites or the PPr matrix itself. The behavior of PPr\/CMC composites under the action of the mentioned climatic factors has been assessed from the variation of dielectric characteristics with frequency. The strong polarization of CMC leads to a sharp increase in composites electrical conductivity after submersion in water for 480 h, suggesting weakening of the composite structure. After exposure to UV radiation, a sharp increase in conductivity is observed even after the first cycle (72 h) of UV radiation. Following the experimental results obtained in our study, it is recommended to use the PPr +10% CMC composite for obtaining different interior ornaments (carpets, supports, etc.). At the same time, the use of these materials also has the advantage of lightening the mass of the vehicle due to their lower density than polymers.<\/jats:p>","DOI":"10.3390\/polym16152188","type":"journal-article","created":{"date-parts":[[2024,7,31]],"date-time":"2024-07-31T17:16:49Z","timestamp":1722446209000},"page":"2188","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Composites from Recycled Polypropylene and Carboxymethylcellulose with Potential Uses in the Interior Design of Vehicles"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7751-9324","authenticated-orcid":false,"given":"Alina Ruxandra","family":"Caramitu","sequence":"first","affiliation":[{"name":"National Institute for Research and Development in Electrical Engineering\u2014ICPE-CA, 030138 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Romeo Cristian","family":"Ciobanu","sequence":"additional","affiliation":[{"name":"Department of Electrical Measurements and Materials, Gheorghe Asachi Technical University, 700050 Iasi, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ioana","family":"Ion","sequence":"additional","affiliation":[{"name":"National Institute for Research and Development in Electrical Engineering\u2014ICPE-CA, 030138 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5437-6896","authenticated-orcid":false,"given":"Mihai","family":"Marin","sequence":"additional","affiliation":[{"name":"National Institute for Research and Development in Electrical Engineering\u2014ICPE-CA, 030138 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2485-716X","authenticated-orcid":false,"given":"Eduard-Marius","family":"Lungulescu","sequence":"additional","affiliation":[{"name":"National Institute for Research and Development in Electrical Engineering\u2014ICPE-CA, 030138 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Virgil","family":"Marinescu","sequence":"additional","affiliation":[{"name":"National Institute for Research and Development in Electrical Engineering\u2014ICPE-CA, 030138 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5919-221X","authenticated-orcid":false,"given":"Magdalena","family":"Aflori","sequence":"additional","affiliation":[{"name":"Petru Poni Institute of Macromolecular Chemistry, 41 A Gr. Ghica Voda Alley, 700487 Iasi, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4928-8159","authenticated-orcid":false,"given":"Adriana Mariana","family":"Bors","sequence":"additional","affiliation":[{"name":"National Research and Development Institute for Optoelectronics-INOE 2000-IHP, 040558 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,7,31]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Mihai, F.C., G\u00fcndo\u011fdu, S., Markley, L.A., Olivelli, A., Khan, F.R., Gwinnett, C., Gutberlet, J., Reyna-Bensusan, N., Llanquileo-Melgarejo, P., and Meidiana, C. (2022). Plastic Pollution, Waste Management Issues, and Circular Economy Opportunities in Rural Communities. 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