Application of bioethanol derived lignin for improving physico-mechanical properties of thermoset biocomposites

Bajwa, Dilpreet S.; Wang, Xinnan; Sitz, Evan D.; Loll, Tyler; Bhattacharjee, Sujal

doi:10.1016/j.ijbiomac.2016.04.077

Cited by 24 publications

(10 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This O/C relationship can be used as a parameter to evaluate the polarity of fibers in the production of biocomposites materials, being related to the content of hydroxyl groups. These groups are reactive centers of high polarity, which influence the formation of hydrogen bonds and the compatibility between fibers and a polymer [48]. For this reason, the O/C ratio allows to estimate the interaction degree between the lignocellulosic reinforcement and the polar polymeric matrix used [3], and its value is higher for CHF compared to CCF.…”

Section: Natural Fibers Characterizationmentioning

confidence: 99%

See 1 more Smart Citation

Recycled Polypropylene-Coffee Husk and Coir Coconut Biocomposites: Morphological, Mechanical, Thermal and Environmental Studies

Hidalgo-Salazar¹,

Correa-Aguirre²,

Montalvo-Navarrete³

et al. 2020

Thermosoftening Plastics

View full text Add to dashboard Cite

In this work, biocomposites based on recycled polypropylene (r-PP) and two different natural fibers (coffee husk-CHF and coconut coir-CCF fibers) were prepared using extrusion and injection molding processes. Also, the addition of maleated polypropylene (MAPP) as a coupling agent on the biocomposites was explored. Recycled polypropylene and its biocomposites were tested following ASTM standards in order to evaluate tensile and flexural mechanical properties. Also, thermal behavior and the morphology of these materials have been studied by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and scanning electronic microscopy (SEM). The experimental results showed that the addition of CHF and CCF to the r-PP resulted in an increase in the flexural modulus and thermal properties of the composites but resulted in poor impact properties. Thermal characterization showed that CHF possesses a better thermal stability compared to CCF. However, both fibers act as nucleating agents and generate an increase in the thermal stability of the r-PP phase. Finally, it was observed that addition of 4% of MAPP significantly improved the mechanical strength and impact behavior of the biocomposites. Regarding environmental issues, a cradle to gate life cycle assessment was made in order to define the carbon footprint of the materials.

show abstract

Section: Natural Fibers Characterizationmentioning

confidence: 99%

“…This type of compound is considered as an amorphous polymer with chemical heterogeneity and a low physical consistency. Bajwa et al [48] mentioned that increase in the lignin content decreases the mechanical resistance of thermoset biocomposites. Table 7.…”

Section: Natural Fibers Characterizationmentioning

confidence: 99%

Recycled Polypropylene-Coffee Husk and Coir Coconut Biocomposites: Morphological, Mechanical, Thermal and Environmental Studies

Hidalgo-Salazar¹,

Correa-Aguirre²,

Montalvo-Navarrete³

et al. 2020

Thermosoftening Plastics

View full text Add to dashboard Cite

show abstract

“…Ferdosian et al (2016) and Asada et al (2015) [41,42] synthesized bio-based epoxy resin to replace petroleum-based epoxy resins. Bajwa et al (2016) [43] studied the application of wheat straw and corn stover based lignin derived from ethanol production for thermosets bio-based composites manufacturing. According to their investigation, both lignins investigated improve some properties such as impact strength, and thermal stability maintaining the modulus and strength features, and it can be used as fillers to improve certain properties of epoxy matrix.…”

Section: Lignin In Thermosets Compositesmentioning

confidence: 99%

Recent approaches and future trends for lignin-based materials

Dias

Negrão

Gonçalves

et al. 2017

Molecular Crystals and Liquid Crystals

View full text Add to dashboard Cite

Known as the main source of aromatic compounds in nature, lignin possesses heterogeneous composition which has high potential to be used in many industrial purposes. Lignin has been used as retardants of fire, thermal stabilizer, hydrophobicity agent, carbon fiber, aerogels and antioxidants. This review summarizes several uses of lignin-based components and their potential applications. We focused on the industrial uses of lignin in order to diminish the dependence of petroleum-based materials.

show abstract

“…The hydrotreatment of pyrolysis liquids derived from BPS residues was also recently reported by Priharto et al [20] for the production of monomers, achieving total monomer yields of up to 50 wt%, primarily in the form of alkylphenols. Other advanced bioethanol stillage applications include the use of thermoset biocomposites [21] and the production of adhesives [22], among others.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal liquefaction versus catalytic hydrodeoxygenation of a bioethanol production stillage residue to platform chemicals: A comparative study

Hita

Ghoreishi

Santos

et al. 2021

Fuel Processing Technology

View full text Add to dashboard Cite

Biobased chemicals like phenols and aromatics are preferably produced from cheap biomass waste streams. In this work, we have explored the potential of a eucalyptus-derived second generation bioethanol production stillage (BPS) residue for this purpose. A comparative study between a hydrothermal liquefaction (HTL) and a catalytic hydrodeoxygenation (HDO) step, as well as a 2-step HTL-HDO approach is reported, targeting at valueadded low molecular weight platform chemicals (mainly alkylphenols and aromatics). HDO was observed to be a more suitable strategy than HTL for the production of organic oils enriched in valuable monomers. The direct HDO of the BPS using a commercial Ru/C catalyst at 450 • C and 100 bar H 2 pressure led to an organic product oil (30.7 wt%) with a total monomer yield of 25.2 wt% (13.2 wt% of alkylphenolic+aromatics), compared to a 53.2 wt% of a product oil with 10.0 wt% monomers for the HTL step (305 • C). A 2-step HTL-HDO strategy was compared with the direct HDO approach. Comparable alkylphenolic+aromatic yields were obtained through this approach based on initial BPS intake (13.2 wt% vs 12.3 wt% for the direct HDO and HTL-HDO approach, respectively). Lower HTL temperatures (305 • C) for the first step are preferred to prevent over hydrogenation in the subsequent HDO step. As such, HTL appears a suitable pre-treatment for BPS and can (i) solve the issues related to the feeding of solids in pressurized continuous reactors for HDO and (ii) prevent coke formation during the HDO step, thus improving catalyst stability and durability.

show abstract

Application of bioethanol derived lignin for improving physico-mechanical properties of thermoset biocomposites

Cited by 24 publications

References 21 publications

Recycled Polypropylene-Coffee Husk and Coir Coconut Biocomposites: Morphological, Mechanical, Thermal and Environmental Studies

Recycled Polypropylene-Coffee Husk and Coir Coconut Biocomposites: Morphological, Mechanical, Thermal and Environmental Studies

Recent approaches and future trends for lignin-based materials

Hydrothermal liquefaction versus catalytic hydrodeoxygenation of a bioethanol production stillage residue to platform chemicals: A comparative study

Contact Info

Product

Resources

About