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Li D, Tu Z, Wang B, Li M, Jia Z, Wei Z. Synthesis of renewable furan-based phosphate and the superior flame retardancy in biodegradable polylactide. Int J Biol Macromol 2024; 263:130435. [PMID: 38408585 DOI: 10.1016/j.ijbiomac.2024.130435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 02/28/2024]
Abstract
Currently, it has long been considered a challenge to provide sustainable additives for polylactide (PLA) in green way to endow it excellent comprehensive properties. Given the flammability and unsatisfactory crystallization performance of PLA, a furan-based phosphate furfurylamine trimethylphosphate (FATMP) was synthesized from 2-furfurylamine and amino trimethylphosphonic acid by a simple hydration reaction, and the PLA/FATMP composites were prepared by melting blending process. The tensile performance, crystallization behaviors, flame retardancy, and flame-retardant mechanism received special attention. Results showed that the incorporation of only 3 wt% FATMP could indeed increase the LOI value of PLA from 19.8 to 27.3 %, and simultaneously acquired V-0 rating in the vertical burning test owing to the favorable synergistic effect between the vapor phase and the condensed phase. Additionally, the half-crystallization time of PLA was decreased from 12.4 to 5.1 mins with the addition of FATMP, which acted as a nucleating agent. More appealingly, the tensile performance of PLA/FATMP composites was also well maintained. In general, the PLA/FATMP composites we proposed could be promising candidates in application fields where favorable flame retardancy and crystallization ability are required.
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Affiliation(s)
- Dongsheng Li
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory of Polymer Science and Engineering, Department of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zhu Tu
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory of Polymer Science and Engineering, Department of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Bo Wang
- School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - Minglong Li
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory of Polymer Science and Engineering, Department of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zihan Jia
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory of Polymer Science and Engineering, Department of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zhiyong Wei
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory of Polymer Science and Engineering, Department of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China.
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2
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Aloui H, Khwaldia K. Development and characterization of novel emulsified nanocomposite coatings incorporating different loadings of nanoclay and beeswax for paper packaging. RSC Adv 2023; 13:30358-30368. [PMID: 37849698 PMCID: PMC10578248 DOI: 10.1039/d3ra05211g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/05/2023] [Indexed: 10/19/2023] Open
Abstract
Paper coated with poly (vinyl alcohol) (PVA)-based films incorporating varying amounts of halloysite nanotubes (HNTs) and/or beeswax (BW) were developed. The applied PVA/HNTs nanocomposite films, PVA/BW emulsified films, and PVA/HNTs/BW emulsified nanocomposite films were characterized in terms of FTIR, TGA, DSC, and XRD analyses. The effects of HNTs and/or BW at different loadings on the functional properties of coated paper were investigated. HNTs and BW co-incorporation significantly improved the water vapor permeability of the resulting PVA/HNTs/BW coated paper samples, and reduced their Cobb60 values, respectively, by more than 50, 24, and 18% as compared to the uncoated paper, paper coated with pristine PVA and paper coated with PVA/HNTs nanocomposite-based coatings. While increasing their contact angle values in the range of 10-20%. Likewise, HNTs and BW co-incorporation increased the mechanical strength of PVA/HNTs/BW coated paper in the range of 20.54-29.80% as compared to the uncoated paper, while increasing their flexibility up to 32.50%. Such enhancement in the functional properties of PVA/HNTs/BW coated paper is most likely due to the establishment of interactions between PVA, BW, and HNTs. Our results demonstrate the ability of PVA/HNTs/BW emulsified nanocomposite coatings to improve paper barrier and mechanical properties owing to the prominent reinforcement effects of HNTs and the good moisture-barrier properties of BW.
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Affiliation(s)
- Hajer Aloui
- Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique Biotechpole Sidi Thabet 2020 Tunisia
- Higher Institute of Biotechnology, Monastir (ISBM) Monastir Tunisia
| | - Khaoula Khwaldia
- Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique Biotechpole Sidi Thabet 2020 Tunisia
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3
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Milovanovic S, Lukic I, Horvat G, Novak Z, Frerich S, Petermann M, García-González CA. Green Processing of Neat Poly(lactic acid) Using Carbon Dioxide under Elevated Pressure for Preparation of Advanced Materials: A Review (2012-2022). Polymers (Basel) 2023; 15:polym15040860. [PMID: 36850144 PMCID: PMC9960451 DOI: 10.3390/polym15040860] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/03/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
This review provides a concise overview of up-to-date developments in the processing of neat poly(lactic acid) (PLA), improvement in its properties, and preparation of advanced materials using a green medium (CO2 under elevated pressure). Pressurized CO2 in the dense and supercritical state is a superior alternative medium to organic solvents, as it is easily available, fully recyclable, has easily tunable properties, and can be completely removed from the final material without post-processing steps. This review summarizes the state of the art on PLA drying, impregnation, foaming, and particle generation by the employment of dense and supercritical CO2 for the development of new materials. An analysis of the effect of processing methods on the final material properties was focused on neat PLA and PLA with an addition of natural bioactive components. It was demonstrated that CO2-assisted processes enable the control of PLA properties, reduce operating times, and require less energy compared to conventional ones. The described environmentally friendly processing techniques and the versatility of PLA were employed for the preparation of foams, aerogels, scaffolds, microparticles, and nanoparticles, as well as bioactive materials. These PLA-based materials can find application in tissue engineering, drug delivery, active food packaging, compostable packaging, wastewater treatment, or thermal insulation, among others.
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Affiliation(s)
- Stoja Milovanovic
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia
- Łukasiewicz Research Network—New Chemical Syntheses Institute, Al. Tysiąclecia Państwa Polskiego 13a, 24-110 Puławy, Poland
- Correspondence: (S.M.); (I.L.)
| | - Ivana Lukic
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia
- Correspondence: (S.M.); (I.L.)
| | - Gabrijela Horvat
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova 17, SI-2000 Maribor, Slovenia
| | - Zoran Novak
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova 17, SI-2000 Maribor, Slovenia
| | - Sulamith Frerich
- Faculty of Mechanical Engineering, Institute of Thermo and Fluid Dynamics, Ruhr-University Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Marcus Petermann
- Faculty of Mechanical Engineering, Institute of Thermo and Fluid Dynamics, Ruhr-University Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Carlos A. García-González
- I+D Farma Group (GI-1645), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, iMATUS and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
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4
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Yargici Kovanci C, Nofar M, Ghanbari A. Synergistic Enhancement of Flame Retardancy Behavior of Glass-Fiber Reinforced Polylactide Composites through Using Phosphorus-Based Flame Retardants and Chain Modifiers. Polymers (Basel) 2022; 14:polym14235324. [PMID: 36501718 PMCID: PMC9739078 DOI: 10.3390/polym14235324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/09/2022] [Accepted: 11/12/2022] [Indexed: 12/12/2022] Open
Abstract
Flame retardancy properties of neat PLA can be improved with different phosphorus-based flame retardants (FRs), however, developing flame retardant PLA-based engineering composites with maintained mechanical performance is still a challenge. This study proposes symbiosis approaches to enhance the flame retardancy behavior of polylactide (PLA) composites with 20 wt% short glass fibers (GF). This was first implemented by exploring the effects of various phosphorus-based FRs up to 5 wt% in neat PLA samples. Among the used phosphorus-based FRs, the use of only 3 wt% of diphosphoric acid-based FR (P/N), melamine coated ammonium polyphosphate (APPcoated), and APP with melamine synergist (APP/Mel) resulted in achieving the V0 value in a vertical burning test in the neat PLA samples. In addition to their superior efficiency in improving the flame retardancy of neat PLA, P/N had the least negative effect on the final mechanical performance of PLA samples. When incorporated in PLA composites with 20 wt% GF, however, even with the use of 30 wt% P/N, the V0 value could not be obtained due to the candlewick effect. To resolve this issue, the synergistic effect of P/N and aromatic polycarbodiimide (PCDI) cross-linker or Joncryl epoxy-based chain-extender (CE) on the flame retardancy characteristics of composites was examined. Due to the further chain modification, which also enhances the melt strength of PLA, the dripping of composites in the vertical burning test terminated and the V0 value could be reached when using only 1 wt% PCDI or CE. According to the scanning electron microscopic analysis, the use of noted chain modifiers further homogenized the distribution and refined the particle size of P/N within the PLA matrix. Hence this could synergistically contribute to the enhancements of the fire resistance performance of the PLA composites. Such incorporation of P/N and chain modifiers further leads to the enhancement of the mechanical performance of PLA composites and hence the resultant product can be proposed as a promising durable bioplastic engineering product where fire risk exists.
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Affiliation(s)
- Ceren Yargici Kovanci
- Polymer Science and Technology Program, Institute of Science and Technology, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
- Arcelik A.S. Central R&D Department, Polymer & Chemical, Tuzla, Istanbul 34950, Turkey
| | - Mohammadreza Nofar
- Polymer Science and Technology Program, Institute of Science and Technology, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
- Sustainable & Green Plastics Laboratory, Metallurgical & Materials Engineering Department, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
- Correspondence:
| | - Abbas Ghanbari
- National Research Council Canada, 2690 Red Fife Rd., Rosser, MB R0H 1E0, Canada
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5
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Liu L, Yan C, Zhang W, Xu Y, Xu M, Hong Y, Qiu Y, Li B. A monomolecular organophosphate for enhancing the flame retardancy, thermostability and crystallization properties of polylactic acid. J Appl Polym Sci 2022. [DOI: 10.1002/app.53347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Lubin Liu
- Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials, College of Science Northeast Forestry University Harbin People's Republic of China
| | - Chentao Yan
- Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials, College of Science Northeast Forestry University Harbin People's Republic of China
| | - Wenjia Zhang
- Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials, College of Science Northeast Forestry University Harbin People's Republic of China
| | - Yue Xu
- Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials, College of Science Northeast Forestry University Harbin People's Republic of China
- Key Lab of Bio‐based Material Science and Technology, Ministry of Education Northeast Forestry University Harbin People's Republic of China
| | - Miaojun Xu
- Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials, College of Science Northeast Forestry University Harbin People's Republic of China
- Key Lab of Bio‐based Material Science and Technology, Ministry of Education Northeast Forestry University Harbin People's Republic of China
| | - Yukai Hong
- Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials, College of Science Northeast Forestry University Harbin People's Republic of China
| | - Yong Qiu
- Petroleum and Chemical Industry Engineering Laboratory of Non‐Halogen Flame Retardants for Polymers, College of Chemistry and Materials Engineering Beijing Technology and Business University Beijing People's Republic of China
- China Light Industry Engineering Technology Research Center of Advanced Flame Retardants, College of Chemistry and Materials Engineering Beijing Technology and Business University Beijing People's Republic of China
| | - Bin Li
- Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials, College of Science Northeast Forestry University Harbin People's Republic of China
- Key Lab of Bio‐based Material Science and Technology, Ministry of Education Northeast Forestry University Harbin People's Republic of China
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6
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Wongwat S, Yoksan R, Hedenqvist MS. Bio-based thermoplastic natural rubber based on poly(lactic acid)/thermoplastic starch/calcium carbonate nanocomposites. Int J Biol Macromol 2022; 208:973-982. [PMID: 35364197 DOI: 10.1016/j.ijbiomac.2022.03.175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/16/2022] [Accepted: 03/25/2022] [Indexed: 11/17/2022]
Abstract
Bio-based thermoplastic natural rubber (TPNR) has recently received much attention due to its sustainability. TPNR based on natural rubber (NR), poly(lactic acid) (PLA), thermoplastic starch (TPS), and nano-precipitated calcium carbonate (NPCC) was fabricated using a twin-screw extruder with two different mixing sequences: MI (NPCC was first compounded with PLA) and MII (NPCC was initially compounded with TPS), and then converted to a sheet through cast sheet extrusion. A constant weight ratio of NR:PLA:TPS at 30:40:30 and varying concentrations of NPCC at 0.5, 1, 3, and 5 wt% were employed. The effects of NPCC and mixing sequence on the properties of NR/PLA/TPS/NPCC nanocomposites were investigated. The NR and TPS phases were dispersed in the PLA matrix. The nanocomposites loaded with a small amount of NPCC (0.5 and 1 wt%) showed increased tensile strength and Young's modulus. NPCC enhanced melt flowability, slightly improved the water vapor barrier property of the NR/PLA/TPS blend and caused decreased Tg, Tcc, and Tm of PLA in the nanocomposites. The PLA phase of the MI nanocomposites contained a higher amount of NPCC, consequently having greater PLA chain scission and poorer tensile properties than that of the MII nanocomposites.
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Affiliation(s)
- Sukanya Wongwat
- Department of Packaging and Materials Technology, Faculty of Agro-Industry, Kasetsart University, Bangkok 10900, Thailand
| | - Rangrong Yoksan
- Department of Packaging and Materials Technology, Faculty of Agro-Industry, Kasetsart University, Bangkok 10900, Thailand; Center for Advanced Studies for Agriculture and Food (CASAF), Kasetsart University Institute for Advanced Studies, Kasetsart University (NRU-KU), Bangkok 10900, Thailand.
| | - Mikael S Hedenqvist
- Department of Fibre and Polymer Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm 10044, Sweden
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7
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Milovanovic S, Pajnik J, Lukic I. Tailoring of advanced poly(lactic acid)‐based materials: A review. J Appl Polym Sci 2022. [DOI: 10.1002/app.51839] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Stoja Milovanovic
- University of Belgrade Faculty of Technology and Metallurgy Belgrade Serbia
- New Chemical Syntheses Institute Łukasiewicz Research Network Puławy Poland
| | - Jelena Pajnik
- University of Belgrade Innovation Center of the Faculty of Technology and Metallurgy Belgrade Serbia
| | - Ivana Lukic
- University of Belgrade Faculty of Technology and Metallurgy Belgrade Serbia
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8
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Xu Y, Qiu Y, Yan C, Liu L, Xu M, Xu B, Li B. A novel and multifunctional flame retardant nucleating agent towards superior fire safety and crystallization properties for biodegradable poly (lactic acid). ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.09.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Venkatesh C, Chen Y, Cao Z, Brennan S, Major I, Lyons JG, Devine DM. Influence of extrusion screw speed on the properties of halloysite nanotube impregnated polylactic acid nanocomposites. JOURNAL OF POLYMER ENGINEERING 2021. [DOI: 10.1515/polyeng-2020-0228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Abstract
Poly (lactic acid)/halloysite nanotube (PLA/HNT) nanocomposites have been studied extensively over the past few years owing to the interesting properties of the polymer, PLA, and the nanoclay, HNT, individually and as composites. In this paper, the influence of the screw speed during extrusion was investigated and was found to have a significant impact on the mechanical and thermal performance of the extruded PLA/HNT nanocomposites. To determine the effect of screw speed on PLA/HNT nanocomposites, 5 and 10 wt% of HNTs were blended into the PLA matrix through compounding at screw speeds of 40, 80, and 140 rpm. Virgin PLA was compounded for comparison. The resultant polymer melt was quench cooled onto a calendar system to produce composite films which were assessed for mechanical, thermal, chemical, and surface properties. Results illustrate that in comparison to 40 and 80 rpm, the virgin PLA when compounded at 140 rpm, indicated a significant increase in the mechanical properties. The PLA/HNT 5 wt% nanocomposite compounded at 140 rpm showed significant improvement in the dispersion of HNTs in the PLA matrix which in turn enhanced the mechanical and thermal properties. This can be attributed to the increased melt shear at higher screw speeds.
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Affiliation(s)
- Chaitra Venkatesh
- Materials Research Institute, Athlone Institute of Technology , Dublin Road , Athlone , Co. Westmeath , Ireland
| | - Yuanyuan Chen
- Materials Research Institute, Athlone Institute of Technology , Dublin Road , Athlone , Co. Westmeath , Ireland
| | - Zhi Cao
- Materials Research Institute, Athlone Institute of Technology , Dublin Road , Athlone , Co. Westmeath , Ireland
| | - Shane Brennan
- Materials Research Institute, Athlone Institute of Technology , Dublin Road , Athlone , Co. Westmeath , Ireland
| | - Ian Major
- Materials Research Institute, Athlone Institute of Technology , Dublin Road , Athlone , Co. Westmeath , Ireland
| | - John G. Lyons
- Faculty of Engineering and Informatics , Athlone Institute of Technology , Dublin Road , Athlone , Co. Westmeath , Ireland
| | - Declan M. Devine
- Materials Research Institute, Athlone Institute of Technology , Dublin Road , Athlone , Co. Westmeath , Ireland
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10
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Okten Besli NS, Orakdogen N. One-Shot Preparation of Polybasic Ternary Hybrid Cryogels Consisting of Halloysite Nanotubes and Tertiary Amine Functional Groups: An Efficient and Convenient Way by Freezing-Induced Gelation. Gels 2021; 7:gels7010016. [PMID: 33562842 PMCID: PMC7931030 DOI: 10.3390/gels7010016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 01/30/2021] [Accepted: 02/01/2021] [Indexed: 01/21/2023] Open
Abstract
A convenient method for the preparation of polybasic ternary hybrid cryogels consisting of Halloysite nanotubes (HNTs) and tertiary amine functional groups by freezing-induced gelation is proposed. Ternary hybrid gels were produced via one-shot radical terpolymerization of 2-hydroxyethyl methacrylate (HEMA), 2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS), and DEAEMA in the presence of HNTs. The equilibrium swelling in various swelling media and the mechanical properties of the produced ternary hybrid gels were analyzed to investigate their network structure and determine their final performance. The swelling ratio of HNT-free gels was significantly higher than the ternary hybrid gels composed of high amount of HNTs. The addition of HNTs to terpolymer network did not suppress pH- and temperature-sensitive behavior. While DEAEMA groups were effective for pH-sensitive swelling, it was determined that both HEMA and DEAEMA groups were effective in temperature-sensitive swelling. Ternary hybrid gels simultaneously demonstrated both negative and positive temperature-responsive swelling behavior. The swelling ratio changed considerably according to swelling temperature. Both DEAEMA and HEMA monomers in terpolymer structure were dominant in temperature-sensitive swelling. Mechanical tests in compression of both as-prepared and swollen-state demonstrated that strength and modulus of hybrid cryogels significantly increased with addition of HNTs without significant loss of mechanical strength. Ultimately, the results of the current system can benefit characterization with analysis tools for the application of innovative materials.
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Affiliation(s)
- Nur Sena Okten Besli
- Department of Civil Engineering, Istanbul Kultur University, Bakırkoy, 34158 Istanbul, Turkey;
- Department of Chemistry, Soft Materials Research Laboratory, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey
| | - Nermin Orakdogen
- Department of Chemistry, Soft Materials Research Laboratory, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey
- Correspondence: ; Tel.: +90-212-285-3305
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11
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Banerjee R, Ray SS. An overview of the recent advances in polylactide‐based sustainable nanocomposites. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25623] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ritima Banerjee
- Department of Chemical Engineering Calcutta Institute of Technology Howrah India
| | - Suprakas Sinha Ray
- Centre for Nanostructures and Advanced Materials, DSI‐CSIR Nanotechnology Innovation Centre Council for Scientific and Industrial Research Pretoria South Africa
- Department of Chemical Sciences University of Johannesburg Johannesburg South Africa
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12
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13
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Jin X, Xiang E, Zhang R, Qin D, Jiang M, Jiang Z. Halloysite nanotubes immobilized by chitosan/tannic acid complex as a green flame retardant for bamboo fiber/poly(lactic acid) composites. J Appl Polym Sci 2020. [DOI: 10.1002/app.49621] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaobei Jin
- Key Laboratory of National Forestry and Grassland Administration for Bamboo and Rattan Science & Technology International Centre for Bamboo and Rattan Beijing China
| | - Elin Xiang
- Research Institute of Wood Industry, Chinese Academy of Forestry Beijing China
| | - Rong Zhang
- Key Laboratory of National Forestry and Grassland Administration for Bamboo and Rattan Science & Technology International Centre for Bamboo and Rattan Beijing China
| | - Daochun Qin
- Key Laboratory of National Forestry and Grassland Administration for Bamboo and Rattan Science & Technology International Centre for Bamboo and Rattan Beijing China
| | - Mingliang Jiang
- Research Institute of Wood Industry, Chinese Academy of Forestry Beijing China
| | - Zehui Jiang
- Key Laboratory of National Forestry and Grassland Administration for Bamboo and Rattan Science & Technology International Centre for Bamboo and Rattan Beijing China
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14
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Tailoring the Properties of Thermo-Compressed Polylactide Films for Food Packaging Applications by Individual and Combined Additions of Lactic Acid Oligomer and Halloysite Nanotubes. Molecules 2020; 25:molecules25081976. [PMID: 32340300 PMCID: PMC7221984 DOI: 10.3390/molecules25081976] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 12/18/2022] Open
Abstract
In this work, films of polylactide (PLA) prepared by extrusion and thermo-compression were plasticized with oligomer of lactic acid (OLA) at contents of 5, 10, and 20 wt%. The PLA sample containing 20 wt% of OLA was also reinforced with 3, 6, and 9 parts per hundred resin (phr) of halloysite nanotubes (HNTs) to increase the mechanical strength and thermal stability of the films. Prior to melt mixing, ultrasound-assisted dispersion of the nanoclays in OLA was carried out at 100 °C to promote the HNTs dispersion in PLA and the resultant films were characterized with the aim to ascertain their potential in food packaging. It was observed that either the individual addition of OLA or combined with 3 phr of HNTs did not significantly affect the optical properties of the PLA films, whereas higher nanoclay contents reduced lightness and induced certain green and blue tonalities. The addition of 20 wt% of OLA increased ductility of the PLA film by nearly 75% and also decreased the glass transition temperature (Tg) by over 18 °C. The incorporation of 3 phr of HNTs into the OLA-containing PLA films delayed thermal degradation by 7 °C and additionally reduced the permeabilities to water and limonene vapors by approximately 8% and 47%, respectively. Interestingly, the highest barrier performance was attained for the unfilled PLA film plasticized with 10 wt% of OLA, which was attributed to a crystallinity increase and an effect of “antiplasticization”. However, loadings of 6 and 9 phr of HNTs resulted in the formation of small aggregates that impaired the performance of the blend films. The here-attained results demonstrates that the properties of ternary systems of PLA/OLA/HNTs can be tuned when the plasticizer and nanofiller contents are carefully chosen and the resultant nanocomposite films can be proposed as a bio-sourced alternative for compostable packaging applications.
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15
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Characterization of polylactic acid/halloysite nanotubes bionanocomposite films for food packaging. Food Packag Shelf Life 2020. [DOI: 10.1016/j.fpsl.2019.100450] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Lei G, Zhen W. Poly(lactic acid)/opal-methacryloylpropyltrimethoxysilane-polystyrene graft polymer composites: preparation, characterization, and performance. IRANIAN POLYMER JOURNAL 2019. [DOI: 10.1007/s13726-019-00777-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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17
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Modulating the properties of polylactic acid for packaging applications using biobased plasticizers and naturally obtained fillers. Int J Biol Macromol 2019; 153:1165-1175. [PMID: 31756463 DOI: 10.1016/j.ijbiomac.2019.10.246] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/23/2019] [Accepted: 10/26/2019] [Indexed: 11/24/2022]
Abstract
The properties of PLA films intended for packaging applications have been modulated by using bio-based platicizers and naturally obtained fillers. Triethyl citrate (TEC) and glycerol triacetate (GTA) have been used as platicizers and halloysite nanotubes (HNT) and chitosan have been used as fillers. The addition of 10 wt% TEC, 10 wt% GTA and 3 wt% HNT improves the ductility of PLA films, however, reduces the tensile modulus and tensile strength. Addition of chitosan (1 wt%), on the other hand, acts as a good reinforcing filler and improves the tensile strength and tensile modulus. PLA-HNT-chitosan film show comparable tensile strength, tensile modulus and ~12 times higher elongation at break compared to pure PLA. Besides, PLA-HNT-chitosan film demonstrates very good barrier properties against moisture and ultraviolet (UV) rays. Additionally, its antibacterial efficacy against E. coli and S. aureus are found to be around 80% and 70%, respectively. The study demonstrates the complementary effects of HNT and chitosan to modulate the properties of PLA film and indicates that the PLA-HNT-chitosan film can emerge as a very potent material for packaging applications.
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18
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Huang YX, Huang HX. Rheological behavior of well-dispersed polypropylene/halloysite nanotube composites prepared by water-assisted mixing extrusion. IRANIAN POLYMER JOURNAL 2019. [DOI: 10.1007/s13726-019-00742-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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19
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Wu M, Huang H. Structural interpretations on tensile fracture mechanism and elongational rheology of poly(vinylidene fluoride)/halloysite nanotubes nanocomposites. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Min Wu
- Laboratory for Micro Molding and Polymer Rheology, The Key Laboratory of Polymer Processing Engineering of the Ministry of EducationSouth China University of Technology Guangzhou 510640 China
| | - Han‐Xiong Huang
- Laboratory for Micro Molding and Polymer Rheology, The Key Laboratory of Polymer Processing Engineering of the Ministry of EducationSouth China University of Technology Guangzhou 510640 China
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20
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Sahnoune M, Taguet A, Otazaghine B, Kaci M, Lopez-Cuesta JM. Fire retardancy effect of phosphorus-modified halloysite on polyamide-11 nanocomposites. POLYM ENG SCI 2018. [DOI: 10.1002/pen.24961] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Mohamed Sahnoune
- Laboratoire des Matériaux Polymères Avancés (LMPA); Université de Bejaia; 06000, Algeria
- Centre des Matériaux des Mines d'Alès (C2MA); IMT Mines d'Alès, 6 avenue de Clavières, 30319 Alès cedex France
| | - Aurélie Taguet
- Centre des Matériaux des Mines d'Alès (C2MA); IMT Mines d'Alès, 6 avenue de Clavières, 30319 Alès cedex France
| | - Belkacem Otazaghine
- Centre des Matériaux des Mines d'Alès (C2MA); IMT Mines d'Alès, 6 avenue de Clavières, 30319 Alès cedex France
| | - Mustapha Kaci
- Laboratoire des Matériaux Polymères Avancés (LMPA); Université de Bejaia; 06000, Algeria
| | - José-Marie Lopez-Cuesta
- Centre des Matériaux des Mines d'Alès (C2MA); IMT Mines d'Alès, 6 avenue de Clavières, 30319 Alès cedex France
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Sun CB, Mao HD, Chen F, Fu Q. Preparation of Polylactide Composite with Excellent Flame Retardance and Improved Mechanical Properties. CHINESE JOURNAL OF POLYMER SCIENCE 2018. [DOI: 10.1007/s10118-018-2150-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Herrera N, Singh AA, Salaberria AM, Labidi J, Mathew AP, Oksman K. Triethyl Citrate (TEC) as a Dispersing Aid in Polylactic Acid/Chitin Nanocomposites Prepared via Liquid-Assisted Extrusion. Polymers (Basel) 2017; 9:E406. [PMID: 30965710 PMCID: PMC6418827 DOI: 10.3390/polym9090406] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 08/27/2017] [Accepted: 08/28/2017] [Indexed: 11/17/2022] Open
Abstract
The production of fully bio-based and biodegradable nanocomposites has gained attention during recent years due to environmental reasons; however, the production of these nanocomposites on the large-scale is challenging. Polylactic acid/chitin nanocrystal (PLA/ChNC) nanocomposites with triethyl citrate (TEC) at varied concentrations (2.5, 5.0, and 7.5 wt %) were prepared using liquid-assisted extrusion. The goal was to find the minimum amount of the TEC plasticizer needed to enhance the ChNC dispersion. The microscopy study showed that the dispersion and distribution of the ChNC into PLA improved with the increasing TEC content. Hence, the nanocomposite with the highest plasticizer content (7.5 wt %) showed the highest optical transparency and improved thermal and mechanical properties compared with its counterpart without the ChNC. Gel permeation chromatography confirmed that the water and ethanol used during the extrusion did not degrade PLA. Further, Fourier transform infrared spectroscopy showed improved interaction between PLA and ChNC through hydrogen bonding when TEC was added. All results confirmed that the plasticizer plays an important role as a dispersing aid in the processing of PLA/ChNC nanocomposites.
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Affiliation(s)
- Natalia Herrera
- Division of Materials Science, Composite Center Sweden, Luleå University of Technology, Luleå SE-97187, Sweden.
| | - Anshu Anjali Singh
- Division of Materials Science, Composite Center Sweden, Luleå University of Technology, Luleå SE-97187, Sweden.
| | - Asier M Salaberria
- Biorefinery Processes Research Group, Department of Chemical and Environmental Engineering, Faculty of Engineering, Guipúzcoa, University of the Basque Country, Plaza Europa 1, Donostia-San Sebastian 20018, Spain.
| | - Jalel Labidi
- Biorefinery Processes Research Group, Department of Chemical and Environmental Engineering, Faculty of Engineering, Guipúzcoa, University of the Basque Country, Plaza Europa 1, Donostia-San Sebastian 20018, Spain.
| | - Aji P Mathew
- Division of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-10691, Sweden.
| | - Kristiina Oksman
- Division of Materials Science, Composite Center Sweden, Luleå University of Technology, Luleå SE-97187, Sweden.
- Fibre and Particle Engineering, University of Oulu, Oulu FIN-90014, Finland.
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23
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Bugatti V, Sorrentino A, Gorrasi G. Encapsulation of Lysozyme into halloysite nanotubes and dispersion in PLA: Structural and physical properties and controlled release analysis. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.06.024] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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24
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Li S, Deng L, Xu C, Wu Q, Wang Z. Making a Supertough Flame-Retardant Polylactide Composite through Reactive Blending with Ethylene-Acrylic Ester-Glycidyl Methacrylate Terpolymer and Addition of Aluminum Hypophosphite. ACS OMEGA 2017; 2:1886-1895. [PMID: 31457549 PMCID: PMC6641001 DOI: 10.1021/acsomega.7b00162] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Accepted: 04/25/2017] [Indexed: 06/02/2023]
Abstract
Biocompatible and biodegradable polylactide (PLA) composites with supertough mechanical property and sufficient flame retardancy were fabricated by employing a facile approach involving reactive blending of PLA and ethylene-acrylic ester-glycidyl methacrylate terpolymer (EGMA), with the addition of aluminum hypophosphite (AHP) as an effective flame retardant. In consideration of the balance between mechanical property and flame retardancy, the optimal formula was taking a PLA/EGMA 80/20 blend (supertough STPLA) as the matrix and adding 20 wt % of AHP (relative to the mass of STPLA) as the flame retardant, coded as STPLA/20AHP. The mechanical property test showed that for STPLA/20AHP the elongation at break was increased by about 22 times and the notched Izod impact strength was enhanced by approximately 11 times as compared to those for neat PLA. The flame-retardant property test showed that for STPLA/20AHP the limiting oxygen index value reached 26.6% and the UL-94 V0 rating test was passed. Thermogravimetric analysis, microscale combustion calorimetry, and cone calorimeter were further applied to reveal the thermal stability and combustion behaviors of STPLA/xAHP, respectively, where x indicated the mass content of AHP in percentage. The phase separation morphology, dispersion of AHP particles in STPLA matrix, and fracture surfaces and char residues after flame burning were examined by phase contrast optical microscopy and scanning electron microscopy, respectively, which helped comprehend the results obtained from the mechanical property and flame retardancy tests. The supertough STPLA/xAHP, with sufficient flame retardancy as prepared in this work, could have a potential for engineering applications.
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Affiliation(s)
| | | | - Cui Xu
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Polymer Science and Engineering, Hefei
National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Qianghua Wu
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Polymer Science and Engineering, Hefei
National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhigang Wang
- CAS Key Laboratory of Soft
Matter Chemistry, Department of Polymer Science and Engineering, Hefei
National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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Kim YH, Kwon SH, Choi HJ, Choi K, Kao N, Bhattacharya SN, Gupta RK. Thermal, Mechanical, and Rheological Characterization of Polylactic Acid/Halloysite Nanotube Nanocomposites. J MACROMOL SCI B 2016. [DOI: 10.1080/00222348.2016.1187054] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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26
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Effect of N,N′-diallyl-phenylphosphoricdiamide on ease of ignition, thermal decomposition behavior and mechanical properties of poly (lactic acid). Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2016.01.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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27
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Ouchiar S, Stoclet G, Cabaret C, Gloaguen V. Influence of the Filler Nature on the Crystalline Structure of Polylactide-Based Nanocomposites: New Insights into the Nucleating Effect. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02746] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Saadia Ouchiar
- Unité Matériaux et Transformations,
UMR CNRS 8207, Université Lille1, Bat. C6, 59655 Villeneuve d’Ascq, France
- ECOMERIS, Novapole, ZAC de la NAU, 19240 Saint Viance, France
| | - Grégory Stoclet
- Unité Matériaux et Transformations,
UMR CNRS 8207, Université Lille1, Bat. C6, 59655 Villeneuve d’Ascq, France
| | - Cyrille Cabaret
- ECOMERIS, Novapole, ZAC de la NAU, 19240 Saint Viance, France
| | - Vincent Gloaguen
- Laboratoire
de Chimie des Substances Naturelles, Université de Limoges, 87060 Limoges, France
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28
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Du F, Yousfi M, Lipnik P, Sclavons M, Soulestin J. Using water to modify the localization of clay in immiscible polymer blends. RSC Adv 2015. [DOI: 10.1039/c5ra12594d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The injection of water during melt blending modified the localization of clay in immiscible polymer blends from one phase to the other and improved their dispersion state.
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Affiliation(s)
- Fang Du
- Department of Polymer and Composite Technology & Mechanical Engineering
- Mines Douai
- F-59508 Douai Cedex
- France
| | - Mohamed Yousfi
- Department of Polymer and Composite Technology & Mechanical Engineering
- Mines Douai
- F-59508 Douai Cedex
- France
| | - Pascale Lipnik
- Bio- and Soft Matter, Institute of Condensed Matter and Nanosciences
- Université Catholique de Louvain
- B-1348 Louvain-la-Neuve
- Belgium
| | - Michel Sclavons
- Bio- and Soft Matter, Institute of Condensed Matter and Nanosciences
- Université Catholique de Louvain
- B-1348 Louvain-la-Neuve
- Belgium
| | - Jérémie Soulestin
- Department of Polymer and Composite Technology & Mechanical Engineering
- Mines Douai
- F-59508 Douai Cedex
- France
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