PMID- 31547380 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200930 IS - 2073-4360 (Electronic) IS - 2073-4360 (Linking) VI - 11 IP - 9 DP - 2019 Sep 12 TI - Photo-Oxidative and Soil Burial Degradation of Irrigation Tubes Based on Biodegradable Polymer Blends. LID - 10.3390/polym11091489 [doi] LID - 1489 AB - Irrigation tubes based on biodegradable polymers were prepared via an extrusion-drawing process by Irritec and compared to conventional pipes made of high-density polyethylene (HDPE). A commercial polylactide/poly (butyleneadipate-co-butyleneterephthalate) (PLA/PBAT) blend (Bio-Flex((R))) and Mater-Bi((R)) were used. The polymers were characterized from rheological and mechanical points of view. Irrigation pipes were subjected to photoaging with continued exposure to UV radiation up to 22 days. The degradability in the soil of irrigation tube samples was studied. The influence of temperature and UV irradiation on soil burial degradation was investigated. A soil burial degradation test was carried out at 30 degrees C and 50 degrees C for up to 70 days. The degree of degradation was evaluated from the weight loss percentage. The degradation rate of irrigation tube samples based on Mater-Bi((R)) was higher at 30 degrees C and was stimulated after 14 days of UV irradiation. Higher temperatures or UV aging encouraged the disintegration in soil of Bio-Flex((R))-based irrigation tubes. Furthermore, tube samples, before and after UV and soil burial degradation, were analyzed by Attenuated Total Reflection-Fourier Transform Infra-Red (ATR-FTIR) spectroscopy. FAU - Rapisarda, Marco AU - Rapisarda M AD - Istituto per i Polimeri, Compositi e Biomateriali, Consiglio Nazionale delle Ricerche, Via Paolo Gaifami 18, 95126 Catania, Italy. marcorapis7@gmail.com. FAU - La Mantia, Francesco Paolo AU - La Mantia FP AUID- ORCID: 0000-0002-0452-0519 AD - Department of Engineering, University of Palermo, Viale delle Scienze, Ed.6, 90128 Palermo, Italy. francescopaolo.lamantia@unipa.it. FAU - Ceraulo, Manuela AU - Ceraulo M AD - Department of Engineering, University of Palermo, Viale delle Scienze, Ed.6, 90128 Palermo, Italy. manuela.ceraulo@unipa.it. FAU - Mistretta, Maria Chiara AU - Mistretta MC AD - Department of Engineering, University of Palermo, Viale delle Scienze, Ed.6, 90128 Palermo, Italy. mc.mistretta@gmail.com. FAU - Giuffre, Carmelo AU - Giuffre C AD - IRRITEC, Cda Scarpitta, 98071 Capo d'Orlando, Italy. carmelo.giuffre@irritec.com. FAU - Pellegrino, Roberto AU - Pellegrino R AD - IRRITEC, Cda Scarpitta, 98071 Capo d'Orlando, Italy. roberto.pellegrino@anton-paar.com. AD - Anton Paar, Ankerstrasse 6, 8054 Graz, Austria. roberto.pellegrino@anton-paar.com. FAU - Valenti, Graziella AU - Valenti G AD - Istituto per i Polimeri, Compositi e Biomateriali, Consiglio Nazionale delle Ricerche, Via Paolo Gaifami 18, 95126 Catania, Italy. valentigraziella1985@gmail.com. FAU - Rizzarelli, Paola AU - Rizzarelli P AD - Istituto per i Polimeri, Compositi e Biomateriali, Consiglio Nazionale delle Ricerche, Via Paolo Gaifami 18, 95126 Catania, Italy. paola.rizzarelli@cnr.it. LA - eng PT - Journal Article DEP - 20190912 PL - Switzerland TA - Polymers (Basel) JT - Polymers JID - 101545357 PMC - PMC6780501 OTO - NOTNLM OT - Bio-Flex(R) OT - Mater-Bi(R) OT - biodegradable polymers OT - irrigation pipes OT - photo-oxidation OT - polyesters OT - polymer degradation OT - rheological properties OT - soil burial test COIS- The authors declare no conflicts of interest. EDAT- 2019/09/25 06:00 MHDA- 2019/09/25 06:01 PMCR- 2019/09/12 CRDT- 2019/09/25 06:00 PHST- 2019/08/06 00:00 [received] PHST- 2019/09/04 00:00 [revised] PHST- 2019/09/10 00:00 [accepted] PHST- 2019/09/25 06:00 [entrez] PHST- 2019/09/25 06:00 [pubmed] PHST- 2019/09/25 06:01 [medline] PHST- 2019/09/12 00:00 [pmc-release] AID - polym11091489 [pii] AID - polymers-11-01489 [pii] AID - 10.3390/polym11091489 [doi] PST - epublish SO - Polymers (Basel). 2019 Sep 12;11(9):1489. doi: 10.3390/polym11091489.