Enhanced mechanical and biodegradable properties of PBAT/lignin composites via silane grafting and reactive extrusion

Published on Sep 1, 2021in Composites Part B-engineering7.635
· DOI :10.1016/J.COMPOSITESB.2021.108980
Yufei Liu3
Estimated H-index: 3
(Guida: Guizhou University),
Shan Liu8
Estimated H-index: 8
(Guida: Guizhou University)
+ 8 AuthorsJie Yu17
Estimated H-index: 17
(Guida: Guizhou University)
Abstract Biodegradable polymers, including polybutylene adipate-co-terephthalate (PBAT), can replace traditional plastics to effectively target microplastic pollution; however, their high cost limits their application. In this study, vinyltrimethoxysilane (VTMS)-grafted lignin (VL) was prepared and incorporated into PBAT to reduce its cost and improve its mechanical properties while maintaining its biodegradability. Results show that the tensile strength, Young's modulus, and biodegradation efficiency of a PBAT/VL-30% composite increased by 200%, 151%, and 96%, respectively, compared with neat PBAT. VTMS grafting onto lignin thus improves the dispersion of lignin in PBAT; a network structure of PBAT and VL is formed via reactive extrusion. This work provides a theoretical basis for the design and development of low-cost, highly biodegradable PBAT composites.
#1Yan Zhang (UNNC: The University of Nottingham Ningbo China)H-Index: 16
Last. Pingan Song (University of Southern Queensland)H-Index: 51
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Abstract Polylactic acid (PLA) represents one of most promising bioplastics in response to the increasing global microplastics pollution issue facing the entire ecosystem. Nevertheless, PLA is inherently flammable and also prone to UV-light attack, significantly restricting its wide applications in packaging, fibers and electronics industry. Despite high effectiveness in PLA, existing polyphosphate-based flame retardants are usually synthesized mainly from non-degradable petrochemical compounds ...
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#1Sanjita Wasti (AU: Auburn University)H-Index: 2
#2Eldon D. Triggs (AU: Auburn University)H-Index: 1
Last. Arthur J. Ragauskas (UT: University of Tennessee)H-Index: 102
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Abstract Polylactic acid (PLA) and organosolv lignin were mixed at different ratios and extruded to obtain PLA-lignin composite filaments. PLA was replaced with lignin up to 20 wt%. Two plasticizers (polyethylene glycol (PEG) 2000 and struktol TR451) were added in varying concentrations to enhance the properties of PLA_L20 (20% lignin in PLA) composite filaments. The effect of lignin in PLA, and PEG, and struktol in PLA_L20 composites was investigated via tensile test, differential scanning calo...
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#1Han-Min Wang (BFU: Beijing Forestry University)H-Index: 10
#2Bin Wang (BFU: Beijing Forestry University)H-Index: 3
Last. Run-Cang Sun (Dalian Polytechnic University)H-Index: 103
view all 8 authors...
Biodegradable materials are increasingly imperative in modern society owing to their eco-friendly character, but their high cost and limited properties restrict their applications. In this study, lignin-based (30–50 wt%) biodegradable composites with superior performances were successfully prepared by incorporating lignin into the poly(butylene adipate-co-terephthalate) (PBAT) matrix. In order to improve the compatibility, lignin was efficiently modified by a green esterification reaction under ...
1 CitationsSource
#1Shan LiuH-Index: 8
#2Shuhao Qin (Guida: Guizhou University)H-Index: 10
Last. Hao Wang (University of Southern Queensland)H-Index: 106
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Abstract Biodegradable poly(lactic acid) (PLA) presents suitable physicochemical properties and biocompatibility for biomedical engineering. However, PLA has some drawbacks, such as low cell adhesion, biological inertness, low degradation rate, and acid degradation by-products. In this review, recent progress on strategies to address these problems is summarized, including novel fabrication techniques, high-performance PLA composites, and their applications for tissue engineering and drug delive...
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#1Manish Kumar (PolyU: Hong Kong Polytechnic University)H-Index: 14
#2Xinni Xiong (PolyU: Hong Kong Polytechnic University)H-Index: 13
Last. Nanthi Bolan (University of Newcastle)H-Index: 90
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Abstract Microplastics (MPs) as emerging persistent pollutants have been a growing global concern. Although MPs are extensively studied in aquatic systems, their presence and fate in agricultural systems are not fully understood. In the agricultural soils, major causes of MPs pollution include application of biosolids and compost, wastewater irrigation, mulching film, polymer-based fertilizers and pesticides, and atmospheric deposition. The fate and dispersion of MPs in the soil environment are ...
27 CitationsSource
#1Akhilesh Kumar Pal (U of G: University of Guelph)H-Index: 8
#2Feng Wu (U of G: University of Guelph)H-Index: 7
Last. Amar K. Mohanty (U of G: University of Guelph)H-Index: 159
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Abstract The mechanical, thermal and barrier properties of sustainable PHBV/PBAT blend were investigated under the influence of organically modified nanoclay (0.6, 1.2 and 1.8 wt%) after processing by two different techniques i.e. compression moulding and cast film extrusion. Firstly, pelletized nanoclay masterbatch was fabricated by blending PBAT with 20% nanoclay using melt extrusion. The masterbatch was used as reinforcement phase for PHBV/PBAT blend matrix to fabricate nanocomposite pellets ...
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#1Yufei Liu (Guida: Guizhou University)H-Index: 3
#2Siyuan JiangH-Index: 2
Last. Jie Yu (Guida: Guizhou University)H-Index: 17
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Abstract In order to expand its application range in electronics and membrane industries, this paper aimed to develop polyamide 6 (PA6)/P (N-(4-carboxyphenyl) maleimide-alt-triallyl isocyanurate) (PCT) composites with heat-resisting, thermally conductive and anti-moisture, by employing PCT as a reactive reinforcement material and applying irradiation for solid-state interfacial reaction (SSIR) between PCT and PA6. According to the results, the SSIR occurred between PA6 and PCT. Compared with non...
#1Hanieh Kargarzadeh (PAN: Polish Academy of Sciences)H-Index: 3
#2Andrzej Galeski (PAN: Polish Academy of Sciences)H-Index: 57
Last. Andrzej Pawlak (PAN: Polish Academy of Sciences)H-Index: 20
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Abstract Kraft lignin particles (KLPs) were introduced into a commercial biodegradable poly(butylene adipate-coco-terephthalate) (PBAT) matrix to produce composite material in a mini-extruder. The effect of KLPs content on the morphology, thermal, crystalline, and micro and macro mechanical properties of the PBAT/KLPs was investigated. Results showed that the tensile properties of PBAT improved with the addition of lignin. Dynamic Mechanical Analysis (DMA) showed that the storage modulus of comp...
4 CitationsSource
#1Xiaodong Xu (Zhejiang A & F University)H-Index: 8
#2Jinfeng Dai (Zhejiang A & F University)H-Index: 4
Last. Pingan Song (University of Southern Queensland)H-Index: 51
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Abstract The creation of high-performance polylactic acid (PLA) materials combining excellent mechanical robustness and flame-retardant performances are essential to meet demanding performances requirements for their practical applications in industry. Despite encouraging advances, current strategies by introducing toughening agents and flame retardants usually show compromised mechanical strength/ductility because of the irrational interphase reaction design of multi-component polymer blends. T...
16 CitationsSource
#1Xiaosong Zhai (SDAU: Shandong Agricultural University)H-Index: 2
#2Wentao Wang (SDAU: Shandong Agricultural University)H-Index: 7
Last. Hanxue Hou (SDAU: Shandong Agricultural University)H-Index: 12
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Abstract Starch/PBAT composite films with high starch content were prepared using one-step compounding and subsequent extrusion blowing. The effects of the starch/PBAT weight proportions on the physicochemical properties of the films were investigated. The X-ray diffraction results demonstrated that the extent of intercalation of the starch/PBAT nanocomposite films increased with the increasing PBAT content. The dynamic mechanical analysis revealed that the compatibility of starch and PBAT impro...
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