Natural Rubber Biocomposites Filled with Phyto-Ashes Rich in Biogenic Silica Obtained from Wheat Straw and Field Horsetail

Masłowski, Marcin; Miedzianowska, Justyna; Delekta, Maciej; Czylkowska, Agnieszka; Strzelec, Krzysztof

doi:10.3390/polym13071177

Cited by 8 publications

(1 citation statement)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The short cure time of ENR-Biochar and ENR-CB compounds could be due to the extended time on the rolling mill, as more time is needed to homogenize the compound. ENR-CB compounds demonstrated a shorter cure time than ENR-Biochar, which could be due to the smaller particle size of CB that shortens the cure time of rubber compounds [28]. Figures 4 and 5 show the tensile strength curves and elongation at the break of EBR-Biochar and ENR-CB under various loading conditions.…”

Section: Cure Characteristics and Tensile Propertiesmentioning

confidence: 99%

Preparation and Characterization of Eco-Friendly Spent Coffee/ENR50 Biocomposite in Comparison to Carbon Black

et al. 2021

View full text Add to dashboard Cite

This study investigates the impact of spent coffee biochar (Biochar) compared to carbon black (CB) as a partial replacement for carbon black in epoxidized natural rubber (ENR). Particle size and elemental analysis were used to characterize the biochar and CB. Cure characteristics, tensile, thermal, and morphological properties on the effect of biochar and CB as filler were studied. It was found that incorporating 10 phr of spent coffee biochar could improve the composites’ tensile properties and thermal performance compared to carbon black. However, the addition of biochar significantly affects the maximum torque compared to CB and delays the vulcanization time. SEM study shows that biochar has a strong effect on the morphology of composite films. The FTIR graph reveals no substantial difference between compounds with biochar and CB. According to the thermal calorimetric study, the thermal stability of ENR-Biochar is higher than that of ENR-CB. Additionally, these findings suggest that the utilization of spent coffee as a sustainable biochar could be further explored, but little has been done in epoxidized natural rubber (ENR).

show abstract

Section: Cure Characteristics and Tensile Propertiesmentioning

confidence: 99%

Preparation and Characterization of Eco-Friendly Spent Coffee/ENR50 Biocomposite in Comparison to Carbon Black

et al. 2021

View full text Add to dashboard Cite

show abstract

Biogenic Silica as Filler Material for Elastomers

Biswal

2024

Biogenic Silica

View full text Add to dashboard Cite

Biogenic amorphous silica (BAS) is a substitute of natural origin, especially from living organisms such as plants and unicellular organisms. In some plant species, a fraction of the BAS is present externally in a specific point shape or in the shape of reswelling fibers. It is produced by in vivo biomineralization and is cost-effective, which avoids the unnecessary use of toxic materials or chemical substances. The diatomic biogenic silica possesses many interesting properties, such as a huge surface area, excellent chemical inertness, 3D patterns of micropatterning to nanopatterning of pores, good biocompatibility, distinctive optical properties, adequate mechanical properties, etc. The biogenic silica short fibers, or modified fiber (MF), on modification with vinyltrimethoxysilane can be made into composites with polyisoprene rubber and chlorosulphonated polyethylene rubber, showing the properties of high tensile strength, hardness, resistance to swelling, and thermal stability. Hence, the biogenic silica can be effectively applied as an excellent filler material for many elastomers, and the composite obtained can be used successfully in many important applications such as biomedicine, photonics, energy storage, separation technology, sensing, and energy conversion. However, more research must be done for the commercialization and industrialization of this amazing fiber material.

show abstract

Estimation of Aboveground Biomass for Winter Wheat at the Later Growth Stage by Combining Digital Texture and Spectral Analysis

et al. 2023

View full text Add to dashboard Cite

Aboveground biomass (AGB) is an important indicator used to predict crop yield. Traditional spectral features or image textures have been proposed to estimate the AGB of crops, but they perform poorly at high biomass levels. This study thus evaluated the ability of spectral features, image textures, and their combinations to estimate winter wheat AGB. Spectral features were obtained from the wheat canopy reflectance spectra at 400–1000 nm, including original wavelengths and seven vegetation indices. Effective wavelengths (EWs) were screened through use of the successive projection algorithm, and the optimal vegetation index was selected by correlation analysis. Image texture features, including texture features and the normalized difference texture index, were extracted using gray level co-occurrence matrices. Effective variables, including the optimal texture subset (OTEXS) and optimal normalized difference texture index subset (ONDTIS), were selected by the ranking of feature importance using the random forest (RF) algorithm. Linear regression (LR), partial least squares regression (PLS), and RF were established to evaluate the relationship between each calculated feature and AGB. Results demonstrate that the ONDTIS with PLS based on the validation datasets exhibited better performance in estimating AGB for the post-seedling stage (R2 = 0.75, RMSE = 0.04). Moreover, the combinations of the OTEXS and EWs exhibited the highest prediction accuracy for the seeding stage when based on the PLS model (R2 = 0.94, RMSE = 0.01), the post-seedling stage when based on the LR model (R2 = 0.78, RMSE = 0.05), and for all stages when based on the RF model (R2 = 0.87, RMSE = 0.05). Hence, the combined use of spectral and image textures can effectively improve the accuracy of AGB estimation, especially at the post-seedling stage.

show abstract

Natural Rubber Biocomposites Filled with Phyto-Ashes Rich in Biogenic Silica Obtained from Wheat Straw and Field Horsetail

Cited by 8 publications

References 61 publications

Preparation and Characterization of Eco-Friendly Spent Coffee/ENR50 Biocomposite in Comparison to Carbon Black

Preparation and Characterization of Eco-Friendly Spent Coffee/ENR50 Biocomposite in Comparison to Carbon Black

Biogenic Silica as Filler Material for Elastomers

Estimation of Aboveground Biomass for Winter Wheat at the Later Growth Stage by Combining Digital Texture and Spectral Analysis

Contact Info

Product

Resources

About