1
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Foli G, Capelli F, Grande M, Tagliabue S, Gherardi M, Minelli M. Optimization of Laminated Bio-Polymer Fabrication for Food Packaging Application: A Sustainable Plasma-Activated Approach. Polymers (Basel) 2024; 16:1851. [PMID: 39000706 PMCID: PMC11244328 DOI: 10.3390/polym16131851] [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: 05/14/2024] [Revised: 06/21/2024] [Accepted: 06/26/2024] [Indexed: 07/17/2024] Open
Abstract
The current level of packaging consumption imposes a need to fabricate single-use food packaging with renewable and compostable materials, such as bio-polyesters (e.g., polylactic acid, PLA and polybutylene succinate, PBS) or cellulose, but their use is still problematic. Fabrication of bio-compostable composites can specifically address impeding challenges, and adhesive lamination, achieved with compostable glue, is becoming more and more popular with respect to the less versatile hot lamination. In this context, plasma activation, a chemical-free oxidation technique of a material's surface, is used to increase the affinity of three different biomaterials (cellulose, PLA and PBS) toward a compostable polyurethane adhesive to decrease its amount by gluing bio-polyesters to cellulose. Optical Microscopy reveals activation conditions that do not affect the integrity of the materials, while Water Contact Analyses confirm the activation of the surfaces, with contact angles decreased to roughly 50 deg in all cases. Unexpectedly, ζ-potential analyses and subtractive infrared spectroscopy highlight how the activation performed superficially etches cellulose, while for both PLA and PBS, a general decrease in surface potential and an increase in superficial hydroxyl group populations confirm the achievement of the desired oxidation. Thus, we rationalize continuous activation conditions to treat PLA and PBS and to glue them to neat cellulose. While no beneficial effect is observed with activated PLA, bi-laminate composites fabricated with activated PBS fulfill the benchmark for adhesion strength using less than before, while oxygen permeation analyses exclude plasma-induced etching even at a nanoscale.
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Affiliation(s)
- Giacomo Foli
- Interdepartmental Centre for Industrial Research–Advanced Mechanics and Materials (CIRI–MAM), University of Bologna–Viale del Risorgimento, 2, 40136 Bologna, Italy; (F.C.); (M.G.); (M.M.)
- Department of Civil, Chemical, Environmental, and Materials Engineering (DICAM), University of Bologna, Via Umberto Terracini, 28, 40131 Bologna, Italy
| | - Filippo Capelli
- Interdepartmental Centre for Industrial Research–Advanced Mechanics and Materials (CIRI–MAM), University of Bologna–Viale del Risorgimento, 2, 40136 Bologna, Italy; (F.C.); (M.G.); (M.M.)
- Department of Industrial Engineering (DIN), University of Bologna, Via Umberto Terracini, 24, 40131 Bologna, Italy;
| | - Mariachiara Grande
- Department of Industrial Engineering (DIN), University of Bologna, Via Umberto Terracini, 24, 40131 Bologna, Italy;
| | | | - Matteo Gherardi
- Interdepartmental Centre for Industrial Research–Advanced Mechanics and Materials (CIRI–MAM), University of Bologna–Viale del Risorgimento, 2, 40136 Bologna, Italy; (F.C.); (M.G.); (M.M.)
- Department of Industrial Engineering (DIN), University of Bologna, Via Umberto Terracini, 24, 40131 Bologna, Italy;
| | - Matteo Minelli
- Interdepartmental Centre for Industrial Research–Advanced Mechanics and Materials (CIRI–MAM), University of Bologna–Viale del Risorgimento, 2, 40136 Bologna, Italy; (F.C.); (M.G.); (M.M.)
- Department of Civil, Chemical, Environmental, and Materials Engineering (DICAM), University of Bologna, Via Umberto Terracini, 28, 40131 Bologna, Italy
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2
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Palmieri F, Tagoe JNA, Di Maio L. Development of PBS/Nano Composite PHB-Based Multilayer Blown Films with Enhanced Properties for Food Packaging Applications. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2894. [PMID: 38930263 PMCID: PMC11204785 DOI: 10.3390/ma17122894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 06/06/2024] [Accepted: 06/09/2024] [Indexed: 06/28/2024]
Abstract
Biobased and biodegradable plastics have emerged as promising alternatives to conventional plastics offering the potential to reduce environmental impacts while promoting sustainability. This study focuses on the production of multilayer blown films with enhanced functional properties suitable for food packaging applications. Films were developed through co-extrusion in a three-layer film configuration, with Polybutylene Succinate (PBS) and Polybutylene Succinate Adipate (PBSA) as the external and internal layers, respectively. The functional layer consisted of Polyhydroxybutyrate (PHB) enhanced with nanoclays Cloisite® 30B at varying weight ratios. Films were also processed by manipulating the extruder screw speed of the functional layer to investigate its impact on the functional properties. Rheology, mechanical strength, and barrier performance were characterised to establish correlations between processing conditions and functional layer blends (Cloisite® 30B/PHB) on the properties of the resultant films. Rheological test results indicated that the system with 5% Cloisite® had the best polymer/nanofiller matrix dispersion. Mechanical and permeability tests showed that by varying the process conditions (the alteration of the thickness of the functionalized layer) resulted in an improvement in mechanical and barrier properties. Furthermore, the addition of the nanofiller resulted in a stiffening of the film with a subsequent decrease in permeability to oxygen and water vapour.
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Affiliation(s)
- Francesco Palmieri
- Department of Industrial Engineering (DIIN), University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy;
| | - Joseph Nii Ayi Tagoe
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy;
| | - Luciano Di Maio
- Department of Industrial Engineering (DIIN), University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy;
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3
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Yu P, Li S, Wei Z, Peng C, Cao N, Wan C, Bi S, Chen X. In‐situ generation of biodegradable poly(lactic acid)/poly(butylene succinate) nanofibrillar composites via a facile and cost‐effective strategy of pressure‐induced flow processing. POLYM ADVAN TECHNOL 2023. [DOI: 10.1002/pat.6016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Affiliation(s)
- Peng Yu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base School of Materials and Chemical Engineering Hubei University of Technology Wuhan Hubei China
- Hubei Longzhong Laboratory Xiangyang Hubei China
| | - Shen Li
- Hubei Provincial Key Laboratory of Green Materials for Light Industry New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base School of Materials and Chemical Engineering Hubei University of Technology Wuhan Hubei China
| | - Zi Wei
- Hubei Provincial Key Laboratory of Green Materials for Light Industry New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base School of Materials and Chemical Engineering Hubei University of Technology Wuhan Hubei China
| | - Chang Peng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base School of Materials and Chemical Engineering Hubei University of Technology Wuhan Hubei China
| | - Nuo Cao
- China National Electric Apparatus Research Institute Co., Ltd. Guangzhou Guangdong China
| | - Chao Wan
- China National Electric Apparatus Research Institute Co., Ltd. Guangzhou Guangdong China
| | - Siwen Bi
- Hubei Provincial Key Laboratory of Green Materials for Light Industry New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base School of Materials and Chemical Engineering Hubei University of Technology Wuhan Hubei China
- Hubei Longzhong Laboratory Xiangyang Hubei China
| | - Xuhuang Chen
- Hubei Provincial Key Laboratory of Green Materials for Light Industry New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base School of Materials and Chemical Engineering Hubei University of Technology Wuhan Hubei China
- Hubei Longzhong Laboratory Xiangyang Hubei China
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4
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Righetti MC, Di Lorenzo ML, Cavallo D, Müller AJ, Gazzano M. Structural evolution of poly(butylene succinate) crystals on heating with the formation of a dual lamellar population, as monitored by temperature-dependent WAXS/SAXS analysis. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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5
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Comparative studies of structural, thermal, mechanical, rheological and dynamic mechanical response of melt mixed PHB/bio-PBS and PHBV/bio-PBS blends. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03323-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Lv X, Luo F, Zheng L, Niu R, Liu Y, Xie Q, Song D, Zhang Y, Zhou T, Zhu S. Biodegradable poly(butylene succinate‐co‐butylene furandicarboxylate): Effect of butylene furandicarboxylate unit on thermal, mechanical, and ultraviolet shielding properties, and biodegradability. J Appl Polym Sci 2022. [DOI: 10.1002/app.53122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xuedong Lv
- School of Textile Science and Engineering Tiangong University Tianjin China
| | - Faliang Luo
- High‐Efficiency Coal Utilization and Green Chemical Engineering Ningxia University Yinchuan China
| | - Liuchun Zheng
- School of Textile Science and Engineering Tiangong University Tianjin China
| | - Ruixue Niu
- School of Textile Science and Engineering Tiangong University Tianjin China
| | - Yi Liu
- School of Textile Science and Engineering Tiangong University Tianjin China
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials Hubei University of Science and Technology Xianning China
| | - Qiqi Xie
- School of Textile Science and Engineering Tiangong University Tianjin China
| | - DanQing Song
- School of Textile Science and Engineering Tiangong University Tianjin China
| | - YunChuan Zhang
- School of Textile Science and Engineering Tiangong University Tianjin China
| | - Tianbo Zhou
- School of Textile Science and Engineering Tiangong University Tianjin China
| | - Shifan Zhu
- School of Textile Science and Engineering Tiangong University Tianjin China
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7
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Improvement of Interfacial Adhesion and Thermomechanical Properties of PLA Based Composites with Wheat/Rice Bran. Polymers (Basel) 2022; 14:polym14163389. [PMID: 36015647 PMCID: PMC9413742 DOI: 10.3390/polym14163389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 07/29/2022] [Accepted: 08/16/2022] [Indexed: 11/22/2022] Open
Abstract
The present work aims to enhance the use of agricultural byproducts for the production of bio-composites by melt extrusion. It is well known that in the production of such bio-composites, the weak point is the filler-matrix interface, for this reason the adhesion between a polylactic acid (PLA)/poly(butylene succinate)(PBSA) blend and rice and wheat bran platelets was enhanced by a treatment method applied on the fillers using a suitable beeswax. Moreover, the coupling action of beeswax and inorganic fillers (such as talc and calcium carbonate) were investigated to improve the thermo-mechanical properties of the final composites. Through rheological (MFI), morphological (SEM), thermal (TGA, DSC), mechanical (Tensile, Impact), thermomechanical (HDT) characterizations and the application of analytical models, the optimum among the tested formulations was then selected.
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8
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Modifying Anti-Compression Property and Water-Soluble Ability of Polyglycolic Acid via Melt Blending with Polyvinyl Alcohol. Polymers (Basel) 2022; 14:polym14163375. [PMID: 36015633 PMCID: PMC9415373 DOI: 10.3390/polym14163375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/04/2022] [Accepted: 08/16/2022] [Indexed: 11/17/2022] Open
Abstract
Biodegradable polymeric materials have become the most attractive research interest in recent years and are gradually widely used in various fields in the case of environmental pollution. In this paper, binary blends, mainly including varying contents of polyglycolic acid (PGA) and poly(vinyl alcohol) (PVA), were prepared via a melt compounding strategy. The ethylene-methyl acrylate-glycidyl methacrylate (EMA-GMA) was employed as the compatibilizer to improve the compatibility between the PGA and PVA and the polyolefin elastomer (POE) was used as toughening agent. The anti-compression property and water-soluble ability of the blends were particularly studied to explore their potential application in an oil/gas exploitation field. Special attentions were paid to the evolution of the water-soluble ability of PGAX with the PVA concentration. Furthermore, isothermal shear measurement and thermogravimetric analysis were performed to evaluate the thermal stability of PGA and PGA blends (PGAX) during melt processing. The results showed that the incompatibility between PGA and PVA largely deteriorated the mechanical property, i.e., anti-compression strength, leading to fragile characteristics under a lower compressive load for the PGAX samples with varied contents of PVA. The presence of PVA and EMA-GMA greatly enhanced the viscoelasticity of the PGA melt, showing an increased storage modulus and viscosity at a low shear frequency; however, the thermal instability of PGAX was intensified owing to the greater ease of thermal degradation of PVA than that of PGA. Meanwhile, the water-soluble ability of PGAX was improved due to the high water dissolution of PVA, which played the role as a sacrificial material. The purpose of this work is to pursue an effective modification for PGA processing and application via melt blending.
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9
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Eugenol embedded zein and poly(lactic acid) film as active food packaging: Formation, characterization, and antimicrobial effects. Food Chem 2022; 384:132482. [DOI: 10.1016/j.foodchem.2022.132482] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 01/18/2022] [Accepted: 02/14/2022] [Indexed: 11/21/2022]
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10
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Ponjavic M, Jevtic S, Nikolic MS. Multiblock copolymers containing poly(butylene succinate) and poly(ε-caprolactone) blocks: Effect of block ratio and length on physical properties and biodegradability. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03144-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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11
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Jiang YY, Ren L, Wu GH, Guo W, Guan XF, Zhang MY, Zhang HX. An environmentally sustainable isosorbide-based plasticizer for biodegradable poly(butylene succinate). JOURNAL OF POLYMER ENGINEERING 2022. [DOI: 10.1515/polyeng-2021-0232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this article, isosorbide divalerate (SDV), an alternative renewable resource plasticizer for degradable poly(butylene succinate) (PBS) was successfully synthesized with isosorbide and valeric acid, and was characterized by Fourier transform infrared (FTIR). The mechanical properties, glass transition temperature (T
g
), crystallization properties, rheological behavior of PBS/SDV blends was studied in detail. The results showed that incorporation of SDV had successfully reduced T
g
of the PBS composites, particularly at 20 wt% SDV, where the value of T
g
exhibited a reduction of 12 °C or 39% compared to pure PBS, demonstrating SDV possessed plasticizing efficacy. The crystallinity of PBS was declined by presence of SDV in the blends, and the incorporation of 20 wt% SDV into PBS matrix promoted an impressive decrease of exceeding 22%. Significant enhancement of the toughness and flexibility of PBS was achieved by the addition of SDV. The rheological test revealed that the decrease of modulus and viscosity improved the processing properties of the materials, which broadened the PBS applications. Altogether the SEM showed the fracture surface of the composites undergoes a brittle-tough transition with increasing SDV content below 12% content, meanwhile, significant phase separation was observed in the composites with high content of SDV.
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Affiliation(s)
- Ying Yong Jiang
- National Engineering Laboratory for Polymer Materials Synthesis and Application Technology, Changchun University of Technology , Changchun 130012 , China
- School of Chemical Engineering, Changchun University of Technology , Changchun 130012 , China
| | - Liang Ren
- National Engineering Laboratory for Polymer Materials Synthesis and Application Technology, Changchun University of Technology , Changchun 130012 , China
- School of Chemical Engineering, Changchun University of Technology , Changchun 130012 , China
| | - Gui Hui Wu
- National Engineering Laboratory for Polymer Materials Synthesis and Application Technology, Changchun University of Technology , Changchun 130012 , China
- School of Chemical Engineering, Changchun University of Technology , Changchun 130012 , China
| | - Wei Guo
- National Engineering Laboratory for Polymer Materials Synthesis and Application Technology, Changchun University of Technology , Changchun 130012 , China
- School of Chemical Engineering, Changchun University of Technology , Changchun 130012 , China
| | - Xian Feng Guan
- National Engineering Laboratory for Polymer Materials Synthesis and Application Technology, Changchun University of Technology , Changchun 130012 , China
- School of Chemical Engineering, Changchun University of Technology , Changchun 130012 , China
| | - Ming Yao Zhang
- National Engineering Laboratory for Polymer Materials Synthesis and Application Technology, Changchun University of Technology , Changchun 130012 , China
- School of Chemical Engineering, Changchun University of Technology , Changchun 130012 , China
| | - Hui Xuan Zhang
- National Engineering Laboratory for Polymer Materials Synthesis and Application Technology, Changchun University of Technology , Changchun 130012 , China
- School of Chemical Engineering, Changchun University of Technology , Changchun 130012 , China
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12
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Chen C, Zhang X, Liu C, Wu Y, Zheng G, Chen Y. Advances in downstream processes and applications of biological carboxylic acids derived from organic wastes. BIORESOURCE TECHNOLOGY 2022; 346:126609. [PMID: 34954356 DOI: 10.1016/j.biortech.2021.126609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
Recovering carboxylic acids derived from organic wastes from fermentation broth is challenging. To provide a reference for future study and industrial application, this review summarized recent advances in recovery technologies of carboxylic acids including precipitation, extraction, adsorption, membrane-based processes, etc. Meanwhile, applications of recovered carboxylic acids are summarized as well to help choose suitable downstream processes according to purity requirement. Integrated processes are required to remove the impurities from the complicated fermentation broth, at the cost of loss and expense. Compared with chemical processes, biological synthesis is better options due to low requirements for the substrates. Generally, the use of toxic agents, consumption of acid/alkaline and membrane fouling hamper the sustainability and scale-up of the downstream processes. Future research on novel solvents and materials will facilitate the sustainable recovery and reduce the cost of the downstream processes.
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Affiliation(s)
- Chuang Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Xuemeng Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Chao Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yang Wu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Guanghong Zheng
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
| | - Yinguang Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
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13
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Zhang Z, He F, Wang B, Zhao Y, Wei Z, Zhang H, Sang L. Biodegradable PGA/PBAT Blends for 3D Printing: Material Performance and Periodic Minimal Surface Structures. Polymers (Basel) 2021; 13:polym13213757. [PMID: 34771313 PMCID: PMC8587109 DOI: 10.3390/polym13213757] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 12/23/2022] Open
Abstract
Biodegradable polymers have been rapidly developed for alleviating excessive consumption of non-degradable plastics. Additive manufacturing is also a green energy-efficiency and environment-protection technique to fabricate complicated structures. Herein, biodegradable polyesters, polyglycolic acid (PGA) and poly (butyleneadipate-co-terephthalate) (PBAT) were blended and developed into feedstock for 3D printing. Under a set of formulations, PGA/PBAT blends exhibited a tailored stiffness-toughness mechanical performance. Then, PGA/PBAT (85/15 in weight ratio) with good thermal stability and mechanical property were extruded into filaments with a uniform wire diameter. Mechanical testing clearly indicated that FDM 3D-printed exhibited comparable tensile, flexural and impact properties with injection-molded samples of PGA/PBAT (85/15). Furthermore, uniform and graded Diamond-Triply Periodic Minimal Surfaces (D-TPMS) structures were designed and successfully manufactured via the fused deposition modeling (FDM) technique. Computer tomography (CT) was employed to confirm the internal three-dimensional structures. The compressive test results showed that PGA/PBAT (85/15) D-surface structures bear better load-carrying capacity than that of neat PGA, giving an advantage of energy absorption. Additionally, typical industrial parts were manufactured with excellent dimension-stability, no-wrapping and fine quality. Collectively, biodegradable PGA/PBAT material with good printability has great potentials in application requiring stiffer structures.
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Affiliation(s)
- Zihui Zhang
- School of Automotive Engineering, Dalian University of Technology, Dalian 116024, China;
| | - Fengtai He
- Department of Radiology, Second Affiliated Hospital of Dalian Medical University, Dalian 116027, China; (F.H.); (Y.Z.)
| | - Bo Wang
- School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China;
| | - Yiping Zhao
- Department of Radiology, Second Affiliated Hospital of Dalian Medical University, Dalian 116027, China; (F.H.); (Y.Z.)
| | - Zhiyong Wei
- Department of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China;
| | - Hao Zhang
- Department of Orthopedics, Affiliated Dalian Municipal Central Hospital, Dalian Medical University, Dalian 116027, China
- Correspondence: (H.Z.); (L.S.)
| | - Lin Sang
- School of Automotive Engineering, Dalian University of Technology, Dalian 116024, China;
- Correspondence: (H.Z.); (L.S.)
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14
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Reactive TiO2 Nanoparticles Compatibilized PLLA/PBSU Blends: Fully Biodegradable Polymer Composites with Improved Physical, Antibacterial and Degradable Properties. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2632-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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15
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Coiai S, Di Lorenzo ML, Cinelli P, Righetti MC, Passaglia E. Binary Green Blends of Poly(lactic acid) with Poly(butylene adipate- co-butylene terephthalate) and Poly(butylene succinate- co-butylene adipate) and Their Nanocomposites. Polymers (Basel) 2021; 13:2489. [PMID: 34372090 PMCID: PMC8348712 DOI: 10.3390/polym13152489] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/22/2021] [Accepted: 07/22/2021] [Indexed: 12/31/2022] Open
Abstract
Poly(lactic acid) (PLA) is the most widely produced biobased, biodegradable and biocompatible polyester. Despite many of its properties are similar to those of common petroleum-based polymers, some drawbacks limit its utilization, especially high brittleness and low toughness. To overcome these problems and improve the ductility and the impact resistance, PLA is often blended with other biobased and biodegradable polymers. For this purpose, poly(butylene adipate-co-butylene terephthalate) (PBAT) and poly(butylene succinate-co-butylene adipate) (PBSA) are very advantageous copolymers, because their toughness and elongation at break are complementary to those of PLA. Similar to PLA, both these copolymers are biodegradable and can be produced from annual renewable resources. This literature review aims to collect results on the mechanical, thermal and morphological properties of PLA/PBAT and PLA/PBSA blends, as binary blends with and without addition of coupling agents. The effect of different compatibilizers on the PLA/PBAT and PLA/PBSA blends properties is here elucidated, to highlight how the PLA toughness and ductility can be improved and tuned by using appropriate additives. In addition, the incorporation of solid nanoparticles to the PLA/PBAT and PLA/PBSA blends is discussed in detail, to demonstrate how the nanofillers can act as morphology stabilizers, and so improve the properties of these PLA-based formulations, especially mechanical performance, thermal stability and gas/vapor barrier properties. Key points about the biodegradation of the blends and the nanocomposites are presented, together with current applications of these novel green materials.
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Affiliation(s)
- Serena Coiai
- CNR-ICCOM, National Research Council—Institute of Chemistry of OrganoMetallic Compounds, 56124 Pisa, Italy;
| | - Maria Laura Di Lorenzo
- CNR-IPCB, National Research Council—Institute of Polymers, Composites and Biomaterials, 80078 Pozzuoli, Italy;
| | - Patrizia Cinelli
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy;
| | - Maria Cristina Righetti
- CNR-IPCF, National Research Council—Institute for Chemical and Physical Processes, 56124 Pisa, Italy
| | - Elisa Passaglia
- CNR-ICCOM, National Research Council—Institute of Chemistry of OrganoMetallic Compounds, 56124 Pisa, Italy;
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16
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Righetti MC, Di Lorenzo ML, Cinelli P, Gazzano M. Temperature dependence of the rigid amorphous fraction of poly(butylene succinate). RSC Adv 2021; 11:25731-25737. [PMID: 35478875 PMCID: PMC9036998 DOI: 10.1039/d1ra03775g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 06/16/2021] [Indexed: 11/21/2022] Open
Abstract
In this contribution the temperature evolution of the constrained or rigid amorphous fraction (RAF) of biodegradable and biocompatible poly(butylene succinate) (PBS) was quantified, after detailed thermodynamic characterization by differential scanning calorimetry and X-ray diffraction analysis. At the glass transition temperature, around -40 °C, the rigid amorphous fraction in PBS is about 0.25. It decreases with increasing temperature and becomes zero in proximity of 25 °C. Thus, at room temperature and at the human body temperature, all the amorphous fraction is mobile. This information is important for the development of PBS products for various applications, including biomedical applications, since physical properties of the rigid amorphous fraction, for example mechanical and permeability properties, are different from those of the mobile amorphous fraction.
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Affiliation(s)
- Maria Cristina Righetti
- CNR-IPCF, National Research Council - Institute for Chemical and Physical Processes Via Moruzzi 1 56124 Pisa Italy
| | - Maria Laura Di Lorenzo
- CNR-IPCB, National Research Council - Institute of Polymers, Composites and Biomaterials Via Campi Flegrei 24 80078 Pozzuoli Italy
| | - Patrizia Cinelli
- University of Pisa, Department of Civil and Industrial Engineering Largo Lazzarino 2 56122 Pisa Italy
| | - Massimo Gazzano
- CNR-ISOF, National Research Council - Institute of Organic Synthesis and Photoreactivity Via Gobetti 101 40129 Bologna Italy
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