PMID- 35012177 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220113 IS - 2073-4360 (Electronic) IS - 2073-4360 (Linking) VI - 14 IP - 1 DP - 2021 Dec 31 TI - PLA Biocomposites: Evaluation of Resistance to Mold. LID - 10.3390/polym14010157 [doi] LID - 157 AB - Due to the content of lignocellulosic particles, wood plastic composites (WPC) composites can be attacked by both domestic and mold fungi. Household fungi reduce the mechanical properties of composites, while mold fungi reduce the aesthetics of products by changing their color and surface decomposition of the wood substance. As part of this study, the impact of lignocellulosic fillers in the form of sawdust and bark in poly (lactic acid) (PLA)-based biocomposites on their susceptibility to mold growth was determined. The evaluation of the samples fouled with mold fungi was performed by computer analysis of the image. For comparison, tests were carried out on analogous high-density polyethylene (HDPE) composites. Three levels of composites' filling were used with two degrees of comminution of lignocellulosic fillers and the addition of bonding aids to selected variants. The composites were produced in two stages employing extrusion and flat pressing. The research revealed that PLA composites were characterized by a higher fouling rate by Aspergillus niger Tiegh fungi compared to HDPE composites. In the case of HDPE composites. The type of filler (bark, sawdust) affected this process much more in the case of HDPE composites than for PLA composites. In addition, the use of filler with smaller particles enhanced the fouling process. FAU - Borysiuk, Piotr AU - Borysiuk P AUID- ORCID: 0000-0002-7508-9359 AD - Institute of Wood Sciences and Furniture, Warsaw University of Life Sciences-SGGW, ul. Nowoursynowska 159, 02-776 Warsaw, Poland. FAU - Krajewski, Krzysztof AU - Krajewski K AD - Institute of Wood Sciences and Furniture, Warsaw University of Life Sciences-SGGW, ul. Nowoursynowska 159, 02-776 Warsaw, Poland. FAU - Auriga, Alicja AU - Auriga A AUID- ORCID: 0000-0001-7968-940X AD - Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology Szczecin, Janickiego 33, 71-270 Szczecin, Poland. FAU - Auriga, Radoslaw AU - Auriga R AUID- ORCID: 0000-0001-5627-2425 AD - Institute of Wood Sciences and Furniture, Warsaw University of Life Sciences-SGGW, ul. Nowoursynowska 159, 02-776 Warsaw, Poland. FAU - Betlej, Izabela AU - Betlej I AD - Institute of Wood Sciences and Furniture, Warsaw University of Life Sciences-SGGW, ul. Nowoursynowska 159, 02-776 Warsaw, Poland. FAU - Rybak, Katarzyna AU - Rybak K AUID- ORCID: 0000-0003-3595-0818 AD - Department of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences-SGGW, 159C Nowoursynowska St., 02-776 Warsaw, Poland. FAU - Nowacka, Malgorzata AU - Nowacka M AUID- ORCID: 0000-0003-4689-6909 AD - Department of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences-SGGW, 159C Nowoursynowska St., 02-776 Warsaw, Poland. FAU - Boruszewski, Piotr AU - Boruszewski P AUID- ORCID: 0000-0002-6500-0680 AD - Institute of Wood Sciences and Furniture, Warsaw University of Life Sciences-SGGW, ul. Nowoursynowska 159, 02-776 Warsaw, Poland. LA - eng GR - BIOSTRATEG3/344303/14/NCBR/2018/National Centre for Research and Development/ PT - Journal Article DEP - 20211231 PL - Switzerland TA - Polymers (Basel) JT - Polymers JID - 101545357 PMC - PMC8747751 OTO - NOTNLM OT - HDPE OT - PLA OT - bark OT - biocomposites OT - mold COIS- The authors declare no conflict of interest. EDAT- 2022/01/12 06:00 MHDA- 2022/01/12 06:01 PMCR- 2021/12/31 CRDT- 2022/01/11 01:17 PHST- 2021/10/28 00:00 [received] PHST- 2021/12/22 00:00 [revised] PHST- 2021/12/28 00:00 [accepted] PHST- 2022/01/11 01:17 [entrez] PHST- 2022/01/12 06:00 [pubmed] PHST- 2022/01/12 06:01 [medline] PHST- 2021/12/31 00:00 [pmc-release] AID - polym14010157 [pii] AID - polymers-14-00157 [pii] AID - 10.3390/polym14010157 [doi] PST - epublish SO - Polymers (Basel). 2021 Dec 31;14(1):157. doi: 10.3390/polym14010157.