scholarly journals Synthesis of Silica Particles from Sugarcane Bagasse Ash for Its Application in Hydrophobic Coatings

2020 ◽  
Vol 2 (1) ◽  
pp. 4
Author(s):  
Jesús A. Pérez-Casas ◽  
Antonio A. Zaldívar-Cadena ◽  
Anabel Álvarez-Mendez ◽  
Juan Jacobo Ruiz-Valdés ◽  
Salomé M. de la Parra-Arciniega ◽  
...  
Keyword(s):  
Sodium Silicate ◽  
Sugarcane Bagasse ◽  
Building Materials ◽  
Contact Angles ◽  
Silica Particles ◽  
Raw Material ◽  
Molar Ratio ◽  
Future Application ◽  
Water Contact ◽  
Sugarcane Bagasse Ash

: Wastes such as sugarcane bagasse ash (SCBA) can be used as raw material in ceramics by the elaboration of bricks and tiles and the glass industry, due the high amount of silica in its composition (>70%). Another application for SCBA is the synthesis of metallic silicates. In this work, we study the synthesis of sodium silicate with SCBA as the main raw material and the future application of sodium silicate for the preparation of silica particles in order to create hydrophobic surfaces for ceramic materials to prevent their erosion. The sodium silicate synthesis was carried out by the thermochemical method with batches of ash and sodium carbonate in a 1:1 sodium oxide–silicon oxide molar ratio. The thermal treatment was in an electric furnace at 800 °C for 8 h. Then, for the synthesis of the silica particles, the sodium silicate was dissolved in water, and then we added methanol in a 3:2 water methanol volume ratio. The solution was left to age for an hour to create the Si-OH bond. Finally, tetraethylorthosilicate (TEOS) was added and the solution was stirred for 2 h to create a hydrophobic and hydrolytically resistant siloxane by the displacement of H in the Si-OH bond. The application of the solution was by the spray-coating method over substrates of concrete and red clay with the application of 10, 15, and 20 layers. The hydrophobicity was evaluated with the water contact angle test, with the results of contact angles above the 110°, thus demonstrating the capacity of a waste for the generation of coatings to prolong the useful life of building materials.

scholarly journals Processing of porcelain stoneware tile using sugarcane bagasse ash waste

2015 ◽  
Vol 9 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Myrian Schettino ◽  
José Holanda
Keyword(s):  
Sugarcane Bagasse ◽  
Low Cost ◽  
Linear Shrinkage ◽  
Raw Material ◽  
Partial Replacement ◽  
Firing Cycle ◽  
Sintering Process ◽  
Natural Quartz ◽  
Sugarcane Bagasse Ash ◽  
Fast Firing

Large amounts of waste materials are discarded in the sugarcane industry. This work investigates the reuse of sugarcane bagasse ash waste as an alternative raw material for porcelain stoneware tile bodies, replacing natural quartz by up to 5 wt.%. The tile pieces were fired at 1230 ?C using a fast-firing cycle (< 60min). The technological properties of the fired tile pieces (e.g., linear shrinkage, water absorption, apparent density, and flexural strength) were determined. The sintering process was followed by SEM and XRD analyses. The results show that up to 2.5 wt.% sugarcane bagasse ash waste can be used as a partial replacement for quartz in porcelain stoneware tile (group BIa, ISO 13006 standard), providing excellent technical properties. Hence, its application in high-quality ceramic tile for use in civil construction as a low-cost, alternative raw material could be an ideal means of managing sugarcane bagasse ash waste.

scholarly journals Solid-State Compounding for Recycling of Sawdust Waste into Green Packaging Composites

Processes ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1386
Author(s):  
Rula M. Allaf ◽  
Mohammad Futian
Keyword(s):  
Solid State ◽  
Thermo Gravimetric Analysis ◽  
Contact Angles ◽  
Raw Material ◽  
Potential Candidate ◽  
Gravimetric Analysis ◽  
Water Contact ◽  
Elongation At Break ◽  
Green Packaging ◽  
Thermal Stability Of

The present study explores solid-state cryomilling for the compounding of green composites. Herein, wood plastic composites (WPCs) composed of sawdust (SD) and poly(ε-caprolactone) (PCL) with various compositions were prepared. Two compounding techniques, namely, extrusion and cryomilling, were utilized to prepare WPC raw material pellets and powders, respectively, for comparison purposes. Flat pressing was further utilized to prepare WPC films for testing. Morphological, structural, thermal, mechanical, and surface wettability properties were investigated. Results indicate the advantages of cryomilling in producing WPCs. Scanning electron microscopy (SEM) along with optical micrographs revealed well ground SD particles and uniform distribution in the PCL matrix. Tensile strength and elongation at break of the composites declined with increasing SD content, however, the modulus of elasticity significantly increased. Water contact angles averaged less than 90°, implying partial wetting. Visual observations and thermo-gravimetric analysis (TGA) indicated thermal stability of composites during processing. In conclusion, PCL/SD WPC is a potential candidate to replace conventional plastics for packaging applications. This would also provide a much better utilization of the currently undervalued wood waste resources.

Use of Sugarcane Bagasse Ash as Raw Material in Production of Autoclaved Lightweight Concrete

2013 ◽  
Vol 652-654 ◽  
pp. 1242-1246
Author(s):  
Arkarin Apiwaranuwat ◽  
Preung Kitratporn ◽  
Kannaree Chuangcham ◽  
Thantip Punmatharith
Keyword(s):  
Compressive Strength ◽  
Sugarcane Bagasse ◽  
Lightweight Concrete ◽  
Raw Material ◽  
Curing Time ◽  
Optimal Production ◽  
Sugarcane Bagasse Ash ◽  
Total Composition ◽  
Maximum Compressive Strength ◽  
Production Conditions

Sugarcane bagasse ash (ScBA) obtained as a byproduct of sugar processing may be used as a raw material for producing autoclaved lightweight concrete (ALC). We examined the chemical composition and physical properties of ScBA and determined that the material is not hazardous as defined by the Thai Ministry of Industry. The optimal production conditions for ScBA-containing ALC were a cement/sand ratio of 65/36, a water/total composition ratio of 0.24, and a curing time of 16 h. Maximum compressive strength was obtained in samples containing 20 wt% ScBA.

scholarly journals CERAMIC BUILDING MATERIALS USING NON-TRADITIONAL RAW MATERIALS

2020 ◽  
Vol 3 (3) ◽  
pp. 40-46 ◽  
Author(s):  
V. Men'shikova ◽  
L. Demina
Keyword(s):  
Ceramic Material ◽  
Sodium Silicate ◽  
Silicate Glass ◽  
Firing Temperature ◽  
Building Materials ◽  
Raw Materials ◽  
State Diagram ◽  
Raw Material ◽  
X Ray ◽  
Sodium Silicate Glass

the paper raises questions about the search for the possibility of obtaining a construction ceramic material using a special type of raw material component. Diopside concentrate was chosen as the basis for the ceram-ic masses due to its positive parameters necessary to improve the strength properties of the material and to support local deposits of raw materials in the East Siberian region. To reduce the optimal firing temperature, an aqueous-alkaline solution of sodium silicate was used in small quantities. The chemical composition of the diopside rock showed mainly the presence of silicon oxides. X-ray diffraction analysis revealed the presence of diopside, quartz and calcite. Sodium-silicate glass is characterized by a full content of silica and a modulus of 3. Using the state diagram of three-component systems, the temperature limits necessary for sintering ceramic masses are established. The fusibility curves show that at a temperature of 1040oC, the values of the primary melt for various compositions are 4-14%, and the total melt content is observed at 1475oC. The parameters of physical and mechanical properties of the ceramic material were determined, where at the firing temperature of 1000-1100oC the value of fire shrinkage was no more than 1%, water ab-sorption up to 10%, and compressive strength up to 31 MPa. Moreover, with an increase in the amount of diopside to 90% by weight, the strength increases, and shrinkage decreases. X-ray phase analysis of the compositions determined mainly analytical lines of diopside, which begin to decrease by 1000oC, which de-termines the relationship with the liquid glass. The DTA and TG curves of the thermogram showed endo-thermic and exothermic effects due to the release of adsorbed water and crystallization of glass. The possi-bility of obtaining high-strength low-shrink ceramics using diopside raw materials as the basis of ceramic masses when adding sodium-silicate glass in the form of a melt is established.

Viability of Sugarcane Bagasse Ash as Precursor Material to Solar Absorbers Films

2016 ◽  
Vol 881 ◽  
pp. 427-432 ◽  
Author(s):  
Ithyara Dheylle Machado de Medeiros ◽  
Kelly Cristiane Gomes ◽  
José Felix da Silva Neto
Keyword(s):  
Particle Size ◽  
Sugarcane Bagasse ◽  
Metallic Copper ◽  
Copper Substrate ◽  
Visible Region ◽  
Physicochemical Characterization ◽  
Mineralogical Composition ◽  
Raw Material ◽  
Precursor Material ◽  
Sugarcane Bagasse Ash

The availability of fossil resources decreases over the years, constituting a problem that needs to be properly treated. In this context, it is necessary the exploration of alternative and renewable sources of energy, particularly the use of solar energy incident on the planet. The aim of this work is to examine the feasibility of the application of sugarcane bagasse ash as a precursor material for obtaining an inorganic polymer that will form the absorber film for use in solar collectors for medium and high temperature. Through mechanical particle size separation of ash and its physicochemical characterization, it was possible to prove that the chemical and mineralogical composition of the raw material is favorable for use in alkaline synthesis Furthermore, the ash particle size large achieved the best results of properties optical and microstructural, favoring its application to obtain films to be applied to selective surface. It was also observed that the metallic copper substrate had the best interaction with the film providing the best results in absorption of ultraviolet visible region.

scholarly journals A Short Review on the Valorisation of Sugarcane Bagasse Ash in the Manufacture of Stabilized/Sintered Earth Blocks and Tiles

2017 ◽  
Vol 2017 ◽  
pp. 1-15 ◽  
Author(s):  
Jijo James ◽  
P. Kasinatha Pandian
Keyword(s):  
Waste Management ◽  
Sugarcane Bagasse ◽  
Building Materials ◽  
Cost Effective ◽  
Short Review ◽  
Sugarcane Bagasse Ash ◽  
Earth Blocks ◽  
Improved Performance ◽  
Rich Material ◽  
The Cost

Valorisation of solid wastes in the manufacture of soil based building materials is one of the several technically feasible and cost-effective solutions for waste management. Sugarcane bagasse ash is one such solid waste generated in huge quantities in India, a leading sugar producer. This paper aims at reviewing the valorisation of sugarcane bagasse ash in the manufacture of stabilized as well as sintered earth blocks. Sugarcane bagasse ash is a silica rich material that can play the role of an effective pozzolan leading to enhanced pozzolanic reactions resulting in better performing building materials. The reviewed literature reveals that it has been utilized in the manufacture of blocks as well as tiles in the form of an auxiliary additive as well as a primary stabilizer. However, its utilization in stabilized blocks has been more common compared to sintered blocks due to higher energy consumption in the latter. To summarize, sugarcane bagasse ash not only has improved performance in most of the cases but also has reduced the cost of the material, leading to the conclusion that its valorisation in manufacture of blocks and tiles is a genuine and highly productive solution for waste management as well as cost economy.

scholarly journals Preparation of an Asymmetric Membrane from Sugarcane Bagasse Using DMSO as Green Solvent

2019 ◽  
Vol 9 (16) ◽  
pp. 3347 ◽  
Author(s):  
Nu ◽  
Hung ◽  
Hoang ◽  
Van der Bruggen
Keyword(s):  
Cellulose Acetate ◽  
Sugarcane Bagasse ◽  
Raw Material ◽  
Cellulose Derivatives ◽  
Asymmetric Membrane ◽  
Scanning Calorimetry ◽  
Water Contact ◽  
Force Microscopy ◽  
Cellulose Acetate Membranes ◽  
High Degree

Asymmetric cellulose acetate membranes have been successfully fabricated by phase inversion, using sugarcane bagasse (SB) as the starting material. SB is a raw material with high potential to produce cellulose derivatives due to its structure and morphology. Cellulose was extracted from SB by pretreatment with solutions of 5 wt% NaOH, 0.5 wt% EDTA; then bleached with 2 wt% H2O2. Cellulose acetate (CA) was prepared by the reaction between extracted cellulose with acetic anhydride, and H2SO4 as a catalyst. The obtained CA exhibited a high degree of substitution (2.81), determined with 1H-NMR spectroscopy and titration. The functional groups and thermal analysis of the extracted cellulose and the synthesized CA have been investigated by Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). The change in the crystallinity of the extracted cellulose and CA was evaluated by X-ray diffraction (XRD) spectroscopy. Asymmetric membranes were fabricated using dimethyl sulfoxide (DMSO) as the solvent, with a casting thickness of 250 µm. The obtained membranes were studied by scanning electron microscopy (SEM), DSC and atomic force microscopy (AFM). The hydrophilicity of the membranes was evaluated, as demonstrated by the measurement of water contact angle (WCA) and water content. Furthermore, the antifouling properties of membranes were also investigated.

scholarly journals ZnO-assisted coating of tetracalcium phosphate/ gelatin on the polyethylene terephthalate woven nets by atomic layer deposition

e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 85-91
Author(s):  
Xinyi Zhang ◽  
Juan Zhou ◽  
Jiejun Cheng ◽  
Jun Zhu ◽  
Dannong He
Keyword(s):  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Contact Angles ◽  
Confocal Imaging ◽  
Future Application ◽  
Water Contact ◽  
Nih3t3 Cells ◽  
Tetracalcium Phosphate ◽  
Layer Deposition ◽  
Good Biocompatibility

AbstractA new kind of coating consisting of zinc oxide (ZnO)/tetracalcium phosphate (TTCP)/gelatin (Gel) on the PET woven nets is prepared chemically by the method of atomic layer deposition (ALD) and hydrothermal method. The prepared materials are confirmed by XRD and SEM. XRD results show that ZnO and TTCP are well coated on the surface of PET woven nets and ALD-assisted ZnO leads to a surprising coating adhesion of about 8 MPa. Furthermore, SEM results indicate the diameter and morphology of ZnO, TTCP and Gel of PET woven nets. And the water contact angles of PET’s surface are decreased with ZnO, TTCP and Gel of PET woven nets. Moreover, the confocal imaging of NIH3T3 cells shows that the obtained product could promote the cells proliferation, which indicates that the good biocompatibility of the prepared PET/ZnO/TTCP/ Gel woven builds a foundation for their future application. The results aim to obtain an efficient method to modify PET for fabricating an ideal artificial implant meeting the clinical needs, and imply a positive effect in promoting the compatibility of PET for enhancing graft-bone healing after implantation.

scholarly journals The effect of bagasse fibers material with pumice as a partial substitution of coarse aggregate to increase compressive strength and tensile strength on lightweight concrete

2021 ◽  
Vol 878 (1) ◽  
pp. 012046
Author(s):  
F Samosir ◽  
L E Hutabarat ◽  
C C Purnomo ◽  
S P Tampubolon
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Sugarcane Bagasse ◽  
Sugar Cane ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Fiber Material ◽  
Raw Material ◽  
Partial Substitution ◽  
Sugarcane Bagasse Ash

Abstract Based on data from the Indonesian Sugar Plantation Research Center (P3GI) bagasse produced 32% of the weight of ground sugar cane. Data obtained from the Indonesian Sugar Expert Association (IKAGI) shows the number of sugar cane milled by 57 sugar mills in Indonesia reaches around 30 million tons, so the bagasse produced is estimated to reach 9,640,000 tons. However, as much as 60% of the sugarcane bagasse ash is used by sugar factories as fuel, raw material for paper and others. Therefore, it is estimated that 40% of the sugarcane bagasse ash has not been utilized. In this research sugarcane bagasse used as fiber material with using pumice partial substitutions for coarse aggregate to increase compressive strength and tensile strength of lightweight concrete. The test is conducted on specimens with a diameter of 15 cm and a height of 30 cm at the age of 28 days. Result of test shows lightweight concrete with 0.25% sugarcane bagasse reach optimum compressive strength at 13.74 MPa, compare to 12.83 MPa without sugarcane bagasse; 13.40 MPa with 0.5% sugarcane bagasse, and 11.61 MPa with 1% sugarcane bagasse. Furthermore, the results of the tensile strength test show a significant increase up to 0.25% bagasse fibers reach 1.81 MPa, compare to 1.51 MPa without sugarcane bagasse; 1.72 MPa with 0.5%; and 1.56 MPa with 1% sugarcane bagasse.

scholarly journals A review on strength characteristics of concrete incorporating sugarcane bagasse ash.

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
S Sangeetha ◽  
Fathima Shahin
Keyword(s):  
Sugarcane Bagasse ◽  
Building Materials ◽  
High Specific Surface Area ◽  
The Other ◽  
Low Density ◽  
Light Weight ◽  
Concrete Mix ◽  
Sugarcane Bagasse Ash ◽  
Hardened Properties

Sugarcane bagasse ash is an offshoot of sugar factories found after burning of sugarcane bagasse which itself is found after the extraction of sugar from sugarcane. The disposal of this material causes environmental problems surrounding sugar factories. Sugarcane bagasse ash is rich in silica that can play the role of an effective pozzolana which leads to improve pozzolanic reactions resulting in better performing building materials. Light weight concrete can be prepared from low density bagasse ash. Surface reactions are improved due to its high specific surface area. Some percentage of cement is replaced with bagasse ash to determine the fresh and hardened properties of the concrete mix. Compressive strength of the concrete can be improved tremendously on later stages of addition of bagasse ash. Incorporating sugarcane bagasse ash in concrete can further alter the other various performance of concrete. Keywords—sugarcane bagasse ash, pozzolana, fresh and hardened properties.

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