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Capuano R, Avolio R, Castaldo R, Cocca M, Dal Poggetto G, Gentile G, Errico ME. Poly(lactic acid)/Plasticizer/Nano-Silica Ternary Systems: Properties Evolution and Effects on Degradation Rate. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1284. [PMID: 37049377 PMCID: PMC10097254 DOI: 10.3390/nano13071284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/24/2023] [Accepted: 04/01/2023] [Indexed: 06/19/2023]
Abstract
Plasticized nanocomposites based on poly(lactic acid) have been prepared by melt mixing following a two-step approach, adding two different oligomeric esters of lactic acid (OLAs) as plasticizers and fumed silica nanoparticles. The nanocomposites maintained a remarkable elongation at break in the presence of the nanoparticles, with no strong effects on modulus and strength. Measuring thermo-mechanical properties as a function of aging time revealed a progressive deterioration of properties, with the buildup of phase separation, related to the nature of the plasticizer. Materials containing hydroxyl-terminated OLA showed a higher stability of properties upon aging. On the contrary, a synergistic effect of the acid-terminated plasticizer and silica nanoparticles was pointed out, inducing an accelerated hydrolytic degradation of PLA: materials at high silica content exhibited a marked brittleness and a dramatic decrease of molecular weight after 16 weeks of aging.
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Affiliation(s)
- Roberta Capuano
- Institute for Polymers, Composites and Biomaterials—IPCB, National Research Council of Italy (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Italy; (R.C.); (R.C.); (M.C.); (G.D.P.); (G.G.)
- Department of Mechanical and Industrial Engineering—DIMI, University of Brescia, Via Branze 38, 25121 Brescia, Italy
| | - Roberto Avolio
- Institute for Polymers, Composites and Biomaterials—IPCB, National Research Council of Italy (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Italy; (R.C.); (R.C.); (M.C.); (G.D.P.); (G.G.)
| | - Rachele Castaldo
- Institute for Polymers, Composites and Biomaterials—IPCB, National Research Council of Italy (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Italy; (R.C.); (R.C.); (M.C.); (G.D.P.); (G.G.)
| | - Mariacristina Cocca
- Institute for Polymers, Composites and Biomaterials—IPCB, National Research Council of Italy (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Italy; (R.C.); (R.C.); (M.C.); (G.D.P.); (G.G.)
| | - Giovanni Dal Poggetto
- Institute for Polymers, Composites and Biomaterials—IPCB, National Research Council of Italy (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Italy; (R.C.); (R.C.); (M.C.); (G.D.P.); (G.G.)
| | - Gennaro Gentile
- Institute for Polymers, Composites and Biomaterials—IPCB, National Research Council of Italy (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Italy; (R.C.); (R.C.); (M.C.); (G.D.P.); (G.G.)
| | - Maria Emanuela Errico
- Institute for Polymers, Composites and Biomaterials—IPCB, National Research Council of Italy (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Italy; (R.C.); (R.C.); (M.C.); (G.D.P.); (G.G.)
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Yan K, Chen D, Wang L, Yang W. A Facile Method for Delaying the Migration of Antifogging Agents in Polyethylene Films. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ke Yan
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dong Chen
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Li Wang
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wantai Yang
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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Wang J, Yang L, Xie J, Wang Y, Wang TJ. Surface Amination of Silica Nanoparticles Using Tris(hydroxymethyl)aminomethane. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04346] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jingyuan Wang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Ling Yang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Jiuren Xie
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yichong Wang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Ting-Jie Wang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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Lai SM, Hsieh YT. Preparation and Properties of Polylactic Acid (PLA)/Silica Nanocomposites. J MACROMOL SCI B 2016. [DOI: 10.1080/00222348.2016.1138179] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Wang Z, Xia S, Chen H, Wang S, Nie K, Li Z. Effects of poly(ethylene glycol) grafted silica nanoparticles on crystallization behavior of poly(d
-lactide). POLYM INT 2015. [DOI: 10.1002/pi.4914] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zuoning Wang
- Anhui Province Key Laboratory of Environment-friendly Polymer Materials, College of Chemistry and Chemical Engineering; Anhui University; Hefei Anhui 230601 China
| | - Shuang Xia
- Laboratory of Polymer Physics and Chemistry, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Hong Chen
- Anhui Province Key Laboratory of Environment-friendly Polymer Materials, College of Chemistry and Chemical Engineering; Anhui University; Hefei Anhui 230601 China
| | - Song Wang
- Anhui Province Key Laboratory of Environment-friendly Polymer Materials, College of Chemistry and Chemical Engineering; Anhui University; Hefei Anhui 230601 China
| | - Kangming Nie
- Anhui Province Key Laboratory of Environment-friendly Polymer Materials, College of Chemistry and Chemical Engineering; Anhui University; Hefei Anhui 230601 China
| | - Zhibo Li
- Laboratory of Polymer Physics and Chemistry, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
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