Preparation and Properties of Lignin-Epoxy Resin Composite

Yin, Quanfu; Yang, Weijun; Sun, Chengjun; Di, Mingwei

doi:10.15376/biores.7.4.5737-5748

Cited by 80 publications

(54 citation statements)

References 16 publications

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“…Bahl et al [15] also exploited non-covalent interactions between lignin and carbon black to lower the viscoelastic dissipation in rubber compounds. Numerous scientific articles relating to preparations of lignin as curing agent in epoxy resin have been published [16,17]. Self-crosslinkable lignin/epoxidized natural rubber composites were prepared by the ring-opening reaction between lignin and epoxidized natural rubber in our research group [18].…”

Section: Introductionmentioning

confidence: 99%

Reinforcing styrene butadiene rubber with lignin-novolac epoxy resin networks

Yu¹,

He²,

Jiang³

et al. 2015

Express Polym. Lett.

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Abstract. In this study, lignin-novolac epoxy resin networks were fabricated in the styrene butadiene rubber (SBR) matrix by combination of latex compounding and melt mixing. Firstly, SBR/lignin compounds were co-coagulated by SBR latex and lignin aqueous solution. Then the novolac epoxy resin (F51) was added in the SBR/lignin compounds by melt compounding method. F51 was directly cured by lignin via the ring-opening reaction of epoxy groups of F51 and OH groups (or COOH groups) of lignin during the curing process of rubber compounds, as was particularly evident from Fourier transform infrared spectroscopy (FTIR) studies and maximum torque of the curing analysis. The existence of lignin-F51 networks were also detected by scanning electron microscope (SEM) and dynamic mechanical analysis (DMA). The structure of the SBR/lignin/F51 was also characterized by rubber process analyzer (RPA), thermogravimetric analysis (TGA) and determination of crosslinking density. Due to rigid lignin-F51 networks achieved in SBR/lignin/F51 composites, it was found that the hardness, modulus, tear strength, crosslinking density, the temperature of 5 and 10% weight-loss were significantly enhanced with the loading of F51.

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Section: Introductionmentioning

confidence: 99%

Reinforcing styrene butadiene rubber with lignin-novolac epoxy resin networks

Yu¹,

He²,

Jiang³

et al. 2015

Express Polym. Lett.

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show abstract

“…The mixed materials were removed and put into a home-made mold for hot pressing at a temperature of 130 °C and pressure of 12 MPa (Yin et al 2012). Cold pressing was carried out at room temperature after the hot pressing process was completed.…”

Section: Preparation Of the Compositementioning

confidence: 99%

“…In a previous study (Yin et al 2012), a lignin-epoxy resin composite was prepared by blending EHL (> 50 wt%) with an epoxy resin and polyamine. The obtained composite material showed good thermostability; however, its mechanical strength and other properties were still insufficient when compared with the high-performance native epoxy resins.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties of Wood Flour Reinforced Lignin-Epoxy Resin Composite

Liu

2016

BioResources

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A lignin-epoxy resin composite was prepared by blending lignin/wood flour with an epoxy resin and polyamine. The effects of the wood flour on the mechanical, thermal creep, and creep recovery properties, as well as the microstructure of the composite, were studied. Among the mechanical properties, the initial modulus increased with increasing content of wood flour. The glass transition temperature (Tg) decreased, and the thermal stability first decreased and then increased, as the wood flour content increased. As the wood flour's particle size was decreased, the initial modulus and other mechanical properties first increased and then decreased slightly. The Tg increased, and the thermal stability first decreased and then increased. The creep resistances of the composite were improved after the addition of the wood flour, and the 40 to 60 mesh wood flour exhibited better improvement than 60 to 120 mesh. The scanning electron microscopy (SEM) analysis revealed good interfacial bonding between the lignin, epoxy resin, and wood flour. Fiber breakage and fiber pullout were the main failure modes observed in this study.

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“…Lignin was blended together with epoxy resin and polyamine; the resulting composite showed good interfacial adhesion properties (Yin et al 2012). In addition, lignin was blended with polyvinyl chloride and resulted in renewable and biodegradable materials with increased surface reflectance characteristics as the amount of lignin increases (Mishra et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Physical and Mechanical Properties of Recycled Polypropylene Composites Reinforced with Rice Straw Lignin

Karina¹,

Syampurwadi²,

Satoto³

et al. 2017

BioResources

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Recycled polypropylene (RPP) and lignin represent by-products produced in enormous amounts worldwide that remain underutilized. This study used rice straw lignin as a filler at various concentrations (0% to 70% w/w) in RPP and virgin polypropylene (PP) composites by melt blending. Structural and morphological alterations of lignin were analyzed by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM), respectively. Mechanical properties were evaluated using a universal testing machine (UTM). Results revealed that the tensile strength of the composites decreased as the lignin content increased, presumably due to the low of compatibility degree of lignin and MAPP, as well as the crack formation due to the agglomeration of lignin. However, composites with lignin as a filler showed higher moduli and water absorption capacities, as well as thickness swelling; using lignin as a filler caused a drastic reduction of the elongation at break values. The results indicated that the physical and mechanical properties of RPP and its virgin PP composites had no substantial differences. This indicated that virgin PP could be substituted by recycled polypropylene (RPP) for composite applications with the addition of MAPP.

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Preparation and Properties of Lignin-Epoxy Resin Composite

Cited by 80 publications

References 16 publications

Reinforcing styrene butadiene rubber with lignin-novolac epoxy resin networks

Reinforcing styrene butadiene rubber with lignin-novolac epoxy resin networks

Preparation and Properties of Wood Flour Reinforced Lignin-Epoxy Resin Composite

Physical and Mechanical Properties of Recycled Polypropylene Composites Reinforced with Rice Straw Lignin

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