scholarly journals Utilisation of Bio-binder Made of Homogenised Peat in Crumb Rubber-containing Composites

2020 ◽  
Author(s):  
Kristine Irtiševa ◽  
Vjaceslavs Lapkovskis ◽  
Viktors Mironovs ◽  
Jurijs Ozolins ◽  
Maksim Plohuta ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Compression Strength ◽  
Value Added ◽  
Crumb Rubber ◽  
Binder Content ◽  
Block Form ◽  
Three Phase ◽  
Main Components ◽  
Main Component

The utilisation of the industrial residual products to create new value-added materials and to reduce footprint is a modern challenge of science and industry. Development of the new multifunctional and bio-based composites is an excellent opportunity for complex utilisation of industrial residual products. The study describes the preparation and characterisation of the three-phases bio-based composites. The main components are bio-based binder made of peat, devulcanised crumb rubber (DCR) from used tires and part of the fly ash the cenosphere (CS). Three-phase composite prepared in the form of a block for investigation of the mechanical properties and density and a form of granules for determination of the water and oil products sorption was investigated. This work investigated the dependence of the properties on the main component DCR and CS fraction. Is found, that maximum compression strength (in block form) observed for composition without CS and DCR addition - 79.3 MPa, the second highest value of compression strength is 11.2 MPa for composition with 27.3 wt% of CS. For compositions with bio binder content from 17.4 to 55.8 wt% and with DCR contents in range from 11.0 to 62.0 wt% compression strength is in range 1.1 to 2.0 MPa. Liquid sorption analysis (water and diesel) showed that the maximum saturation of liquids in both cases is set after 35 minutes and ranges from 1.05 to 1.4 g·g -1 for water and 0.77 to 1.25 g·g-1 for diesel. It was noted that 90% of the maximum saturation with diesel fuel comes after 10 minutes and for water after 35 minutes.

scholarly journals Towards Next Generation Sustainable Rubber Composites from Biobinder Made of Homogenised Peat

2020 ◽  
Author(s):  
Kristine Irtiseva ◽  
Vjaceslavs Lapkovskis ◽  
Viktors Mironovs ◽  
Jurijs Ozolins ◽  
Vijay Kumar Thakur ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Compression Strength ◽  
Value Added ◽  
Crumb Rubber ◽  
Binder Content ◽  
Rubber Composites ◽  
Block Form ◽  
Composites Materials ◽  
Three Phase

The utilisation of the industrial residual products to develop new value-added materials and to reduce footprint is one of the critical challenges of science and industry. Development of the new multifunctional and bio-based composites materials is an excellent opportunity for the effective utilisation of industrial residual products. Keeping the different issues in mind, in this work, we describe the manufacturing and characterisation of the three-phases bio-based composites. The key components are bio-based binder made of peat, devulcanised crumb rubber (DCR) from used tires and part of the fly ash, i.e. the cenosphere (CS). The three-phase composite prepared in the form of a block were investigated for their mechanical properties and density. The three-phase composite was prepared in the form a) of a block were investigated for their mechanical properties, and density and b) a form of granules for determination of the water and oil products sorption were investigated. We have also investigated the dependence of the properties on the DCR and CS fraction. It has been found, that maximum compression strength (in block form) observed for composition without CS and DCR addition was- 79.3 MPa, while the second-highest value of compression strength is 11.2 MPa for composition with 27.3 wt% of CS. For compositions with bio binder content from 17.4 to 55.8 wt% and with DCR contents in range from 11.0 to 62.0 wt%, the compression strength is in the range from 1.1 to 2.0 MPa. Liquid sorption analysis (water and diesel) showed that the maximum saturation of liquids in both cases is set after 35 minutes and ranges from 1.05 to 1.4 g·g -1 for water and 0.77 to 1.25 g·g-1 for diesel. It was noted that 90% of the maximum saturation with diesel fuel comes after 10 minutes and for water after 35 minutes.

scholarly journals Towards Next-Generation Sustainable Composites Made of Recycled Rubber, Cenospheres, and Biobinder

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 574
Author(s):  
Kristine Irtiseva ◽  
Vjaceslavs Lapkovskis ◽  
Viktors Mironovs ◽  
Jurijs Ozolins ◽  
Vijay Kumar Thakur ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Compression Strength ◽  
Value Added ◽  
Crumb Rubber ◽  
Binder Content ◽  
Environmental Footprint ◽  
Block Form ◽  
Three Phase ◽  
Recycled Rubber

The utilisation of industrial residual products to develop new value-added materials and reduce their environmental footprint is one of the critical challenges of science and industry. Development of new multifunctional and bio-based composite materials is an excellent opportunity for the effective utilisation of residual industrial products and a right step in the Green Deal’s direction as approved by the European Commission. Keeping the various issues in mind, we describe the manufacturing and characterisation of the three-component bio-based composites in this work. The key components are a bio-based binder made of peat, devulcanised crumb rubber (DCR) from used tyres, and part of the fly ash, i.e., the cenosphere (CS). The three-phase composites were prepared in the form of a block to investigate their mechanical properties and density, and in the form of granules for the determination of the sorption of water and oil products. We also investigated the properties’ dependence on the DCR and CS fraction. It was found that the maximum compression strength (in block form) observed for the composition without CS and DCR addition was 79.3 MPa, while the second-highest value of compression strength was 11.2 MPa for the composition with 27.3 wt.% of CS. For compositions with a bio-binder content from 17.4 to 55.8 wt.%, and with DCR contents ranging from 11.0 to 62.0 wt.%, the compressive strength was in the range from 1.1 to 2.0 MPa. Liquid-sorption analysis (water and diesel) showed that the maximum saturation of liquids, in both cases, was set after 35 min and ranged from 1.05 to 1.4 g·g −1 for water, and 0.77 to 1.25 g·g−1 for diesel. It was observed that 90% of the maximum saturation with diesel fuel came after 10 min and for water after 35 min.

Determination of Bioactive Components of Waste Leaves from Chinese Hackberry by GC/MS

2011 ◽  
Vol 230-232 ◽  
pp. 930-934
Author(s):  
Gong Xiu He ◽  
Dang Quan Zhang ◽  
Qi Mei Liu ◽  
Kuan Peng
Keyword(s):  
Water Stress ◽  
Value Added ◽  
Chemical Components ◽  
Bioactive Components ◽  
Freeze Dried ◽  
History Of ◽  
Celtis Sinensis ◽  
Analytical Result ◽  
Main Components

Chinese Hackberry (Celtis sinensis) tree has high adaptability to environment and tolerance to water stress, and a long history of utilization and plantation in many countries. However, researches on Chinese Hackberry were mostly focused on the biomass analyses and utilizations of its wood, and lacked those to analyze the chemical components of extractives of Chinese Hackberry leaves, which was very important to recover and utilize the polluting waste Chinese Hackberry leaves. Therefore, the chemical components of benzene/ethanol extractives of Chinese Hackberry leaves were analyzed by method of GC/MS in order to identify top value-added bioactive components from waste leaves of Chinese Hackberry tree. The analytical result showed that the main components of benzene/ethanol extractives of freeze-dried Chinese Hackberry leaves by GC/MS analysis were identified 10 components (106 peaks) as: Sesquirosefuran (48.57%), Thiophene, 2-ethyltetrahydro- (20.01 %), Hexatriacontane (8.67%), Octadecane (8.60%), 1-Eicosanol Pregn-4-en-3-one, 20-hydroxy-, (20R)- (4.52%), 1-Amino-2-(hydroxymethyl)anthraquinone (3.63%), 1,3-Diphenyl-(4H)1,2,4-triazoline- (1.92%), Tricyclo[4.3.1.13,8]undecane-1-carboxylic acid (1.69%), Eucalyptol (1.60%), etc. As the first report here, our result by GC/MS showed that the benzene-methanol extractive of freeze-dried Chinese Hackberry leaves can be developed into top value-added materials of spicery, biomedicines, and biofuel.

scholarly journals Determination of Mechanical Properties of Rubberized Concrete in Marine Environment

2019 ◽  
Vol 8 (2) ◽  
pp. 5761-5765
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Marine Environment ◽  
Concrete Specimen ◽  
Crumb Rubber ◽  
Fine Aggregate ◽  
Test Results ◽  
Rubberized Concrete ◽  
Split Tensile Strength

With an objective of saving the environment by providing crumb rubber as an alternative to natural fine aggregate this paper presents a study carried out to find the mechanical properties of rubberized concrete. Rubberized concrete is made up of waste rubber from vehicle tyres and other rubber waste which otherwise is left out polluting the environment. In this paper, 7.5% of crumb rubber (obtained by shredding the vehicle tyres) as an alternative to fine aggregate and 7.5% of fly-ash as an alternative to cement is added with other ingredients of concrete to produce an eco-friendly concrete which can be used economically and effectively for construction along the coastal areas. Various properties like workability, compressive strength, split tensile strength, and flexural strength was carried out on concrete specimens exposed to the natural marine environment along the coast of Visakhapatnam, Andhra Pradesh. The total exposure of concrete specimen was about 150 days, and various specimens were tested at 7, 28, 90, 120 and 150 days, respectively. The test results showed that with a slight compromise in strength, the workability of concrete and resistance to the effect of seawater on the strength of concrete significantly improved with the addition of crumb rubber and fly-ash.

Characterization and Bioactivity of Hydroxyapatite-ZrO2 Composites with Commercial Inert Glass (CIG) Addition

2014 ◽  
Vol 631 ◽  
pp. 166-172
Author(s):  
B. Bulut ◽  
N. Demirkol ◽  
Ziya Engin Erkmen ◽  
E.S. Kayali
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Calcium Phosphate ◽  
Dental Implant ◽  
Compression Strength ◽  
Vickers Microhardness ◽  
Physical And Mechanical Properties ◽  
Apatite Formation ◽  
Main Component

Hydroxyapatite is a kind of calcium phosphate that has generated great interest as an advanced orthopedic and dental implant candidate. Although HA has excellent biocompatibility, it’s poor mechanical properties limit its use as an implant material. Therefore HA is preferred as a main component in composite materials. The aim of this study is to determine the characterization and bioactivity of HA-ZrO2composites with the addition of 5 and 10 wt% commercial inert glass (CIG). The highest density and Vickers microhardness were obtained in HA-ZrO2-5 wt% CIG composite sintered at 1300 °C. The highest compression strength was measured in HA-ZrO2-5 wt% CIG composite sintered at 1200 °C. Thein vitrobioactivity tests were performed on the composites having the highest physical and mechanical properties. The apatite formation was observed on all samples subjected to bioactivity tests. As a result, the optimum mechanical properties and bioactivity were obtained on HA-ZrO2- 5 wt% CIG composite sintered at 1200 °C.

Determination of Bioactive Components of 600 °C Pyrolyzate from Acetone/Ethanol Extractives of Moso Bamboo Root by Pyrolysis-GC/MS

2011 ◽  
Vol 480-481 ◽  
pp. 484-489
Author(s):  
Qing Li ◽  
Kuan Peng ◽  
Dang Quan Zhang
Keyword(s):  
Phosphonic Acid ◽  
Food Industry ◽  
Value Added ◽  
Moso Bamboo ◽  
High Grade ◽  
Bioactive Components ◽  
Tetradecanoic Acid ◽  
Propenoic Acid ◽  
Main Components

The bioactive components of acetone/ethanol extractives of Moso bamboo root was identified by 600°C-based Pyrolysis-GC/MS. 45 compounds representing 96.31 % of the total areas were identified from these 47 peaks. The main components in the 600°C pyrolyzate of benzene/methanol extractives of Moso bamboo root by Pyrolysis- GC/MS analysis are as: Phenol, 2,6-Dimethoxy- (12.58%), 4-Hydroxy-2-Methylacetophenone (9.53%), 3',5'-Dimethoxy- acetophenone (8.15%), Mequinol (7.84%), 2-Propenoic Acid, 3-(2-Hydroxyphenyl)-,(E)- (7.49%), .Gamma.-Sitosterol (3.62%), 1,3-Benzodioxole, 5-(1-Propenyl)- (3.61%), Thiophene, 2-Isobutyl-5-Isopentyl- (3.28%), Phenol, 2-Methoxy-4-(1-Propenyl)- (3.03%), Tetradecanoic Acid (2.96%), Phenol, 2,6-Dimethoxy-4-(2-Propenyl)- (2.74%), Phosphonic Acid, (P-Hydroxyphenyl)- (2.21%), Furan, 2-Methoxy- (1.97%), Squalene (1.83%), Z,Z-6,28-Heptatriactontadien-2-One (1.72%), Bis(2-Methoxyethyl) Phthalate (1.55%), etc. The result showed that the 600°C pyrolyzate of acetone/ethanol extractives of Moso bamboo root is rich in biomedical components, and also contains some bioactive components which can be used as top value-added materials of high-grade spice, cosmetic and food industry.

scholarly journals The Effect of Crumb Rubber Particle Size to the Optimum Binder Content for Open Graded Friction Course

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Mohd Rasdan Ibrahim ◽  
Herda Yati Katman ◽  
Mohamed Rehan Karim ◽  
Suhana Koting ◽  
Nuha S. Mashaan
Keyword(s):  
Particle Size ◽  
Rubber Particle ◽  
Mesh Size ◽  
Crumb Rubber ◽  
Binder Content ◽  
Air Voids ◽  
Porous Asphalt ◽  
The Road ◽  
Open Graded Friction Course

The main objective of this paper is to investigate the relations of rubber size, rubber content, and binder content in determination of optimum binder content for open graded friction course (OGFC). Mix gradation type B as specified in Specification for Porous Asphalt produced by the Road Engineering Association of Malaysia (REAM) was used in this study. Marshall specimens were prepared with four different sizes of rubber, namely, 20 mesh size [0.841 mm], 40 mesh [0.42 mm], 80 mesh [0.177 mm], and 100 mesh [0.149 mm] with different concentrations of rubberised bitumen (4%, 8%, and 12%) and different percentages of binder content (4%–7%). The appropriate optimum binder content is then selected according to the results of the air voids, binder draindown, and abrasion loss test. Test results found that crumb rubber particle size can affect the optimum binder content for OGFC.

GC/MS Determination of Bioactive Components of Waste Leaves from Platanus × acerifolia (Ait.) Willd

2011 ◽  
Vol 480-481 ◽  
pp. 502-506 ◽  
Author(s):  
Dang Quan Zhang ◽  
Kuan Peng ◽  
Lin Lin Guo ◽  
Huai Yun Zhang
Keyword(s):  
Value Added ◽  
Chemical Components ◽  
Bioactive Components ◽  
Platanus Acerifolia ◽  
Freeze Dried ◽  
History Of ◽  
Analytical Result ◽  
Main Components ◽  
Environment Stress

Platanus × acerifolia (Ait.) Willd has high tolerance to environment stress, and a long history of utilization and plantation in China. It is important to recover and utilize the polluting waste leaves from Platanus × acerifolia (Ait.) Willd in order to separate top value-added bioactive components, hence the chemical components of benzene/ethanol extractive of waste leaves from Platanus × acerifolia (Ait.) Willd by means of GC/MS. Relative content of each component was determined by area normalization, and 19 compounds representing 92.35 % of the extractives were identified. The most abundant constituents were as: The analytical result showed that the main components of benzene-methanol extractive of freeze-dried waste leaves from Platanus × acerifolia (Ait.) Willd by GC/MS analysis were 1,3-Dioxane (24.95%), Ethylbenzene (19.03%), p-Xylene (16.02%), Benzene, 1,2-dimethyl- (6.64%), Indane (4.00%), Heptanal (3.89%), 1-Methyl-2-(4-nitrophenyl)benzimid (3.39%), (11H)Pyrido[3',2':4,5]imidazo[2,1- (3.25%), 10-Methylnonadecane (3.00%), Benzene, 1-ethyl-3-methyl- (2.91%), Benzene, 1-ethyl-3-methyl- (2.65%), Benzene, 1-ethyl-2-methyl- (2.46%), 2,5-Cyclohexadien-1-one, 2,5-dimethyl- (1.74%), Docosane, 7-butyl- (1.52%), 1-Amino-2-(hydroxymethyl)anthraqui (1.47%), Acetaldehyde - (0.89%), etc. Our result by GC/MS firstly showed that the benzene-methanol extractives of freeze-dried waste leaves from Platanus × acerifolia (Ait.) Willd can be used as top value-added materials of medicines, cosmetics and industrial solvents.

EXPRESS: Sonoluminescence Spectroscopy Application to Analysis of Industrially Used Highly Concentrated Aqueous Solutions of Alkali Metal Chlorides

2021 ◽  
pp. 000370282110520
Author(s):  
Oleg Yurchenko ◽  
Tetyana Chernozhyk ◽  
Alexandr Baklanov ◽  
Larisa Baklanova ◽  
Alexander Rebrov ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Cesium Chloride ◽  
Accurate Analysis ◽  
Metal Chlorides ◽  
Main Substance ◽  
Ultrasound Frequency ◽  
Main Components ◽  
Main Component ◽  
Saline Solutions

The use of the sonoluminescence spectroscopy for the determination of main components in concentrated aqueous solution of alkali metal halides is examined. In concentrated RCl-solutions (R=Li, Na, K; C=100–600 g•dm–3) the sonoluminescence intensity is inversely proportional to ultrasound frequency in the range from 2 МHz up to 5 МHz. In the CsCl case the inverse proportionality is disturbed at ultrasound frequencies higher than 3 MHz. This is the limiting value for the accurate analysis of the concentrated solutions of cesium chloride. The increase of initiating ultrasound frequency leads to the decreasing of sensibility of the main component determination in highly concentrated (more than 300 g∙dm–3) natural and technological solutions. Nevertheless, the metrological characteristics of the results of the main substance determination in these solutions improve. The routines of express determination of the main substance in concentrated saline solutions were developed.

ANALYSIS OF COMMERCIAL CAJUPUT OILS EXTRACTED FROM MELALEUCA CAJUPUTI POWELL BY GAS CHROMATOGRAPHY

2019 ◽  
pp. 7-10
Author(s):  
Thi Hoai Nguyen ◽  
Xuan Huyen Trang Hoang
Keyword(s):  
Gas Chromatography ◽  
Economic Development ◽  
Chemical Composition ◽  
Key Words ◽  
Melaleuca Cajuputi ◽  
Main Components ◽  
Main Component ◽  
Production Facilities

Background: Cajuput oil is a traditional and famous product of Thua Thien Hue, it is considered as a potential product, contributing to the economic development of Thua Thien Hue. Currently, there are many different products of cajuput oil in the market. However, the quality of cajuput oils in the production facilities has not been considered. The aim of the present study was to apply GC to the determination of the main components of commercial cajuput oils from M. cajuputi species in the Thua Thien Hue province. Materials and method: The chemical composition of 10 commercial cajuput oils extracted from leaves of Melaleuca cajuputi Powell collected in the Thua Thien Hue province was determined by gas chromatography. Results and conclusion: The major componentsofthe oils wereα-pinene, β-pinene, limonene, 1,8-cineoleand terpineol. The result obtained demonstrate that 1,8-cineole is the main component,present in 10 samples with values ranging from 15 to 59%. Key words: Cajuput oil, Melaleuca cajuputi, 1,8-cineole, α-pinene, β-pinene, limonene, terpineol

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