Utilization of coconut shell biomass residue to develop sustainable biocomposites and characterize the physical, mechanical, thermal, and water absorption properties

Kumar, Santosh; Saha, Abir

doi:10.1007/s13399-022-03293-4

Cited by 24 publications

(9 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From obtained results, it was observed that the mass loss of the neat PEF and PEF/PGA blends has occurred in three different stages. In the first stage, the weight percentage reduction (5%) is recorded in between 310°C and 390°C, which might be due to the evaporation of moister, extractive and other impurities 33 . After that, the drastic fall of around 50% weight occurs in the second stage when the temperature remains between 380°C and 430°C due to the degradation of PEF/PGA blends.…”

Section: Resultsmentioning

confidence: 99%

“…This will lead to the formation of more amorphous regions in the blend, and the amorphous region structure is looser than the crystal region, thus increasing the water absorption of the blend. The other is that the agglomeration and inefficient bonding between PEF matrix and PGA reinforcement, which formed micro‐level gap that acts as capillary action and caused higher water absorption 33,35,40 . However, the calculation of the theoretical water absorption is only determined by the composition of the two homopolymers, ignoring the change of the condensed state structure of the blended material.…”

Section: Resultsmentioning

confidence: 99%

“…In the first stage, the weight percentage reduction (5%) is recorded in between 310 C and 390 C, which might be due to the evaporation of moister, extractive and other impurities. 33 After that, the drastic fall of around 50% weight occurs in the second stage when the temperature remains between 380 C and 430 C due to the degradation of PEF/PGA blends. Final stage, the leftover substances showed the weight to fall nearby 10%-14% up to the finishing temperature of 550 C due to the carbonization and phase transformation of the materials.…”

Section: Thermal Stabilitymentioning

confidence: 99%

“…The other is that the agglomeration and inefficient bonding between PEF matrix and PGA reinforcement, which formed micro-level gap that acts as capillary action and caused higher water absorption. 33,35,40 However, the calculation of the theoretical water absorption is only determined by the composition of the two homopolymers, ignoring the change of the condensed state structure of the blended material. Therefore, the experimental water absorption of the PEF/PGA blend is higher than the theoretical water absorption.…”

Section: Water Absorption Of Pef/pga Blendsmentioning

confidence: 99%

See 3 more Smart Citations

Degradation of biobased poly(ethylene 2,5‐furandicarboxylate) and polyglycolide acid blends under lipase conditions

Han

Liao

2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

Bio-based polymer materials are considered to have function of protecting the environment, and improving the degradation performance of bio-based polymer materials is of great significance to realize the green cycle of production-use-degradation of plastic products. This present work is focused on the investigation of the degradation behavior of bio-based polymer blend poly(ethylene 2,5-furandicarboxylate) /polyglycolide acid (PEF/PGA) with different composition ratios in phosphate-buffered saline (PBS solution, pH = 7.4) with 0.5 mg/mL of lipase from porcine pancreas. The results observed that the thermal decomposition temperatures at 5% weight loss of both the PEF/PGA blends are higher than 310 C, which reflected that the PEF/PGA blends possessed excellent thermal stability. The water absorption of the PEF/PGA blends continued to increase with increasing the PGA content. This trend is consistent with the mass loss of blends in the degradation process. The systematic degradation study revealed that the neat PEF showed no mass loss in both PBS solution with and without lipase, while the PEF/PGA blends possessed a faster rate under enzymatic degradation circumstance in the first 4 weeks, and the weight loss in the same degradation period increase with increasing the PGA content due to the erosion of lipase on the polymer chain. In particular, the weight loss of PEFGA40 blend was more than 18.33% after 8 weeks of degradation in enzyme solution. 1 H NMR results showed that in addition to PGA component as a major component of degradation, a small amount of PEF component was also involved in the mass loss of the blend during degradation. At the same time, the short-chain segment produced during the degradation had a clear plasticizing effect on the PEFGA blends, which is reflected in that the T g of PEFGA40 blend decreased first and then increased with the increase of degradation time.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Thermal Stabilitymentioning

confidence: 99%

Section: Water Absorption Of Pef/pga Blendsmentioning

confidence: 99%

See 2 more Smart Citations

Degradation of biobased poly(ethylene 2,5‐furandicarboxylate) and polyglycolide acid blends under lipase conditions

Han

Liao

2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…There are numerous studies on the properties of plant residues: coconut shell (Alavez-Ramírez et al 2012;Kumar and Saha 2022), paper manufacturing waste with corn peel (Lertsutthiwong et al 2008), kenaf fibers (Naik and Kumar 2021;Prabhu et al 2022), cotton stem fibers (Zhou et al 2010;Zhou et al 2020), coconut shell and bagasse (Panyakaew and Fotios 2011), hemp fibers (Chikhi et al 2013;Jiant et al 2019), flax (Jiant et al 2019Ramesh 2019), giant reed (Ferrández-García et al 2012Suárez et al 2022), canary palm (Ferrández-García et al 2017), andWashingtonia palm (Ferrández-García et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the use of vineyard pruning biomass (bobal variety) in constructive bioproducts

Ferrández-Villena

Ferrández-García

García-Ortuño

et al. 2022

BioRes

View full text Add to dashboard Cite

The use of by-products from agricultural and forestry activity, apart from many other environmental benefits, constitutes an alternative source of income, cost reduction, and support for the principles of the circular economy. The bobal grape is a variety of red grape that is cultivated on 65 thousand hectares only in Spain. Periodic maintenance of the crop must be carried out through winter pruning from December to March. The pruning biomass is burned or crushed and incorporated into the soil, producing environmental contamination and disease transmission. The objective of this work was to use the biomass from vineyard residues in the production of binderless particleboards without using any adhesives, thereby obtaining an ecological product that would benefit the environment. In the manufacturing process, the press temperature (130 °C) and pressure (2.6 MPa) were fixed, varying the particle size (<0.25, 0.25 to 1.00, and 1.00 to 2.00), and the pressing time (15, 30, and 45 min). The results showed that by using particles smaller than 0.25 mm and applying 45 min in the hot press, panels were manufactured that are suitable for general use in a dry environment and for the manufacture of furniture according to European standards.

show abstract

Investigation on promotion effect of oxidative stabilization for pitch‐based fiber by co‐carbonization of coal tar pitch and atmospheric residual

Niu,

Miao,

Shen

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

As a pivotal step in the preparation of carbon fiber, oxidative stabilization not only plays a crucial role in maintaining fibrous morphology but also contributes significantly to enhance mechanical properties of resultant carbon fiber. Due to high activation energy of pitch molecules reaction with oxygen and the sluggish diffusion of oxygen within the fiber, the improvement of oxidative stabilization efficiency faces significant challenges. Atmospheric residual (AR) has a high and easily oxidized aliphatic structure. Spinnable pitch is synthesized by co‐carbonization of coal tar pitch (CTP) and AR at a ratio of 3:1 in this work. Its methylene bridge bond ratio is 4.45% and have an appropriate amount aliphatic structure, which makes pitch molecular more linear and naphthenic. Excessive addition of AR is detrimental to spinning performance. The most optimal oxidative stabilization temperature of as‐spun fiber was 280°C, which is lower than that of fiber produced by CTP alone (300°C), displaying a higher oxidative stabilization efficiency. The obtained pitch‐based carbon fiber shows excellent mechanical properties with tensile strength of 999.0 ± 80.1 MPa and Young's modulus of 57.7 ± 3.5 GPa. The co‐carbonization by two different substances has been applied in manufacturing carbon fiber, providing a facile approach to accelerate the oxidative stabilization of pitch fiber.

show abstract

Utilization of coconut shell biomass residue to develop sustainable biocomposites and characterize the physical, mechanical, thermal, and water absorption properties

Cited by 24 publications

References 60 publications

Degradation of biobased poly(ethylene 2,5‐furandicarboxylate) and polyglycolide acid blends under lipase conditions

Degradation of biobased poly(ethylene 2,5‐furandicarboxylate) and polyglycolide acid blends under lipase conditions

Evaluation of the use of vineyard pruning biomass (bobal variety) in constructive bioproducts

Investigation on promotion effect of oxidative stabilization for pitch‐based fiber by co‐carbonization of coal tar pitch and atmospheric residual

Contact Info

Product

Resources

About