PMID- 37765518 OWN - NLM STAT- Publisher LR - 20230930 IS - 2073-4360 (Electronic) IS - 2073-4360 (Linking) VI - 15 IP - 18 DP - 2023 Sep 6 TI - ZnO Treatment on Mechanical Behavior of Polyethylene/Yellow Birch Fiber Composites When Exposed to Fungal Wood Rot. LID - 10.3390/polym15183664 [doi] LID - 3664 AB - Wood plastic composite (WPC) usage and demand have increased because of its interesting chemical and mechanical properties compared to other plastic materials. However, there is a possibility of structural and mechanical changes to the material when exposed to the external environment; most research on wood plastic is performed on the material with elevated fiber content (40-70%). Therefore, more research needs to be performed regarding these issues, especially when the fiber content of the WPC is low. In this study, composite materials composed of high-density polyethylene (HDPE) reinforced with yellow birch fibers (20 and 30%) were made by injection molding. The fibers were treated with dissolved zinc oxide (ZnO) powder in sodium oxide (NaOH) solution, and the fabricated material was exposed to fungal rot. ZnO treatment in this case is different from most studies because ZnO nanoparticles are usually employed. The main reason was to obtain better fixation of ZnO on the fibers. The mechanical properties of the composites were assessed by the tensile and Izod impact tests. The impact energies of the samples fabricated with ZnO-treated fibers and exposed to Gloephyllum trabeum and Trametes versicolor decreased, when compared to samples fabricated with ZnO-nontreated fibers. The mechanical properties of the samples composed of ZnO-treated fibers and exposed to rot decreased, which were reported by a decreased Young's modulus and impact energies. The usage of ZnO treatment prevented mycelium proliferation, which was nonexistent on the samples. It has been noted that the decrease in mechanical properties of the treated samples was because of the action of NaOH used to dissolve the ZnO powder. FAU - Agbozouhoue, Kodjovi Kekeli AU - Agbozouhoue KK AD - Innovations Institute in Ecomaterials, Ecoproducts and Ecoenergy (I2E3), Universite du Quebec a Trois-Rivieres (UQTR), C.P. 500, Trois-Rivieres, QC G9A 5H7, Canada. FAU - Koffi, Demagna AU - Koffi D AD - Innovations Institute in Ecomaterials, Ecoproducts and Ecoenergy (I2E3), Universite du Quebec a Trois-Rivieres (UQTR), C.P. 500, Trois-Rivieres, QC G9A 5H7, Canada. FAU - Erchiqui, Fouad AU - Erchiqui F AUID- ORCID: 0000-0002-3208-6801 AD - Laboratory of Bioplastic and nanomaterials, School of Engineering, Universite du Quebec en Abitibi Temiscamingue (UQAT), 445 Bd de l'Universite, Rouyn-Noranda, QC J9X 5E4, Canada. FAU - Barnabe, Simon AU - Barnabe S AD - Innovations Institute in Ecomaterials, Ecoproducts and Ecoenergy (I2E3), Universite du Quebec a Trois-Rivieres (UQTR), C.P. 500, Trois-Rivieres, QC G9A 5H7, Canada. LA - eng PT - Journal Article DEP - 20230906 PL - Switzerland TA - Polymers (Basel) JT - Polymers JID - 101545357 PMC - PMC10536498 OTO - NOTNLM OT - Gloephyllum trabeum OT - Trametes versicolor OT - Young's modulus OT - composite OT - impact energy OT - mycelium OT - zinc oxide COIS- The authors declare no conflict of interest. EDAT- 2023/09/28 06:42 MHDA- 2023/09/28 06:42 PMCR- 2023/09/06 CRDT- 2023/09/28 01:40 PHST- 2023/07/31 00:00 [received] PHST- 2023/08/27 00:00 [revised] PHST- 2023/09/02 00:00 [accepted] PHST- 2023/09/28 06:42 [medline] PHST- 2023/09/28 06:42 [pubmed] PHST- 2023/09/28 01:40 [entrez] PHST- 2023/09/06 00:00 [pmc-release] AID - polym15183664 [pii] AID - polymers-15-03664 [pii] AID - 10.3390/polym15183664 [doi] PST - epublish SO - Polymers (Basel). 2023 Sep 6;15(18):3664. doi: 10.3390/polym15183664.