{"title":"TiO2和ZnO对不同介质中聚乳酸降解的影响","authors":"A. Marra, S. Cimmino, C. Silvestre","doi":"10.15761/AMS.1000122","DOIUrl":null,"url":null,"abstract":"This work shows the effect of 2 and 5 wt% TiO2 nanoparticles (modified by fluorocarbons and not) and of 1, 3 and 5 wt% ZnO particles on PLA degradation evaluated under UV irradiation, hydrolytical 1N NaOH solution, enzymatical proteinase K solution, and isothermal condition. The presence of TiO2 nanoparticles and ZnO particles decreases the degradation processes of PLA under UV light exposure and increases the PLA hydrolytic degradation. The enzymatic degradation is faster with TiO2 nanoparticles than with ZnO particles, respect neat PLA; whereas the opposite effect is identified in the PLA enzymatic degradation. Correspondence to: CAntonella Marra, Istituto per i Polimeri Compositi e Biomateriali (IPCB), Consiglio Nazionale delle Ricerche (CNR), Via Campi Flegrei 34, Comprensorio Olivetti, 80078 Pozzuoli (NA), Italy, E-mail: marranto.nella@libero.it","PeriodicalId":408511,"journal":{"name":"Advances in Materials Sciences","volume":"41 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"18","resultStr":"{\"title\":\"Effect of TiO2 and ZnO on PLA degradation in various media\",\"authors\":\"A. Marra, S. Cimmino, C. Silvestre\",\"doi\":\"10.15761/AMS.1000122\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This work shows the effect of 2 and 5 wt% TiO2 nanoparticles (modified by fluorocarbons and not) and of 1, 3 and 5 wt% ZnO particles on PLA degradation evaluated under UV irradiation, hydrolytical 1N NaOH solution, enzymatical proteinase K solution, and isothermal condition. The presence of TiO2 nanoparticles and ZnO particles decreases the degradation processes of PLA under UV light exposure and increases the PLA hydrolytic degradation. The enzymatic degradation is faster with TiO2 nanoparticles than with ZnO particles, respect neat PLA; whereas the opposite effect is identified in the PLA enzymatic degradation. Correspondence to: CAntonella Marra, Istituto per i Polimeri Compositi e Biomateriali (IPCB), Consiglio Nazionale delle Ricerche (CNR), Via Campi Flegrei 34, Comprensorio Olivetti, 80078 Pozzuoli (NA), Italy, E-mail: marranto.nella@libero.it\",\"PeriodicalId\":408511,\"journal\":{\"name\":\"Advances in Materials Sciences\",\"volume\":\"41 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"18\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advances in Materials Sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.15761/AMS.1000122\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Materials Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15761/AMS.1000122","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 18
摘要
本研究展示了2 wt%和5 wt% TiO2纳米颗粒(由碳氟化合物和非碳氟化合物修饰)和1 wt%、3 wt%和5 wt% ZnO颗粒在紫外照射、水解1N NaOH溶液、酶解蛋白酶K溶液和等温条件下对PLA降解的影响。TiO2纳米粒子和ZnO粒子的存在降低了紫外光下PLA的降解过程，增加了PLA的水解降解。相对于纯聚乳酸，TiO2纳米粒子的酶解速度比ZnO粒子快;而在聚乳酸酶降解中发现了相反的效果。通讯:CAntonella Marra, Polimeri Compositi e biomateri研究所(IPCB)， Consiglio Nazionale delle Ricerche (CNR)， Via Campi Flegrei 34, Comprensorio Olivetti, 80078 Pozzuoli (NA)，意大利，e -mail: marranto.nella@libero.it
Effect of TiO2 and ZnO on PLA degradation in various media
This work shows the effect of 2 and 5 wt% TiO2 nanoparticles (modified by fluorocarbons and not) and of 1, 3 and 5 wt% ZnO particles on PLA degradation evaluated under UV irradiation, hydrolytical 1N NaOH solution, enzymatical proteinase K solution, and isothermal condition. The presence of TiO2 nanoparticles and ZnO particles decreases the degradation processes of PLA under UV light exposure and increases the PLA hydrolytic degradation. The enzymatic degradation is faster with TiO2 nanoparticles than with ZnO particles, respect neat PLA; whereas the opposite effect is identified in the PLA enzymatic degradation. Correspondence to: CAntonella Marra, Istituto per i Polimeri Compositi e Biomateriali (IPCB), Consiglio Nazionale delle Ricerche (CNR), Via Campi Flegrei 34, Comprensorio Olivetti, 80078 Pozzuoli (NA), Italy, E-mail: marranto.nella@libero.it
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
