scholarly journals Optimization and valorization of recycled fiber in non-woven fabric

2019 ◽  
Vol 69 (06) ◽  
pp. 440-445
Author(s):  
HALIMI MOHAMED TAHER ◽  
HASSEN MOHAMED BEN ◽  
WANNASSI BECHIR
Keyword(s):  
Mechanical Properties ◽  
Developing Countries ◽  
Physical And Mechanical Properties ◽  
Good Alternative ◽  
Added Value ◽  
Woven Fabric ◽  
The World ◽  
Recycled Fiber ◽  
Nonwoven Textiles ◽  
Recycled Fibers

The range and volume of textile products used every day is growing exponentiallythroughout the world, in both developed and developing countries. Therefore, the issues of waste Management and valorization become a challenge that requires depth economic and technical studies. In this setting, we aimed in this paper to give an added value of two kinds of textile wastes: yarns and textiles garments wastes collected from Blue denim manufacturer. A quality assessment of the reclaimed fibers shows satisfying physical and mechanical properties that allow them to be used to produce nonwoven textiles materials. A set of properties are investigated and results revealed that nonwoven structures can be considered as a good alternative for yarn and woven recycled fibers exploitation.

scholarly journals Comparative Study on Physical and Comfort Properties of Yarns and Hand-woven Fabrics Produced from Virgin and Recycled Fibers

2021 ◽  
Vol 8 (1) ◽  
pp. 52-66
Author(s):  
Dessalegn Awgichew ◽  
Santhanam Sakthivel ◽  
Mekdes Gedlu ◽  
Meseret Bogale
Keyword(s):  
Physical And Mechanical Properties ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Breaking Force ◽  
Textile Materials ◽  
Recycled Fiber ◽  
Cotton Yarns ◽  
Recycled Fibers ◽  
Home Furnishing ◽  
Human Kind

Products produced from textile industries cannot meet the needs for human kind since the population of the world grows exponentially; due to this the recycling of textile materials has gained massive importance in textile and clothing sector. In this study, it was aimed to analyse recycled fibers effect on the yarn and hand loom fabrics as their proportion increases. For this purpose, OE rotor yarns produced by varying the recycled fibers proportion at 25%, 50, and 75% and compared with 100% virgin cotton yarns. The physical and mechanical properties of the yarns such as unevenness, imperfections, hairiness, breaking force, elongation, were measured by Uster Tester 4 SX, Uster Zweigle Hairiness Tester 5, and Uster Tensorapid 3. Then after hand loom fabrics with plain and twill fabrics are produced from produced yarns of different recycled fiber proportions. The effects of recycled fiber proportion on produced hand-woven fabric properties such as pilling, abrasion resistance and air permeability were also evaluated. Results showed that yarns and fabrics produced from recycled fibers blended with virgin cotton are suitable for applications where the strength of yarns and fabric are less critical, but where unevenness, imperfections and handle properties required thus, hand loom fabrics Produced can suitably used for home furnishing applications like table cover, curtains, wall covers and pillow cases.

scholarly journals Experimental Study and Effect on Recycled Fibers Blended with Rotor/OE Yarns for the Production of Handloom Fabrics and Their Properties

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Dessalegn Awgichew ◽  
S. Sakthivel ◽  
Eshetu Solomon ◽  
Addisalem Bayu ◽  
Robel Legese ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Air Permeability ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Breaking Force ◽  
Spun Yarns ◽  
Recycled Fiber ◽  
Recycled Fibers ◽  
Textile Sector

The uses of recycled materials have gained massive importance in the textile sector and other application areas as the effects of reducing natural resources are felt worldwide. This study aimed to analyze the effects of recycled fiber usage on the properties of OE-rotor spun yarns and hand-woven fabrics produced from these yarns. For this purpose, OE-rotor yarns are produced at different proportion levels from virgin cotton and recycled fibers derived from knitted garment wastes at 25%, 50%, and 75%, respectively. For a better assessment, properties of OE-rotor yarns that contain recycled fibers and 100% virgin cotton OE-rotor yarns are compared. Physical, structural, and mechanical properties such as unevenness, imperfections, hairiness, breaking force, and elongation are analyzed by Uster Tester 5 SX, Uster Zweigle Hairiness Tester 5, and Uster Tensorapid 3. Plain and twill hand-woven fabrics are produced from OE-rotor spun yarns. Effects of recycled fiber proportion on hand-woven fabric properties such as pilling, abrasion resistance, and air permeability were also evaluated. Results showed that the use of up to 75% of recycled fiber cotton blended yarns shows no statistically significant differences in yarn and fabric properties.

Frost Heaving Soil Road Use Synthetic Adhesive Reinforcement Method

2013 ◽  
Vol 740 ◽  
pp. 759-762
Author(s):  
Hao Zeng Bao
Keyword(s):  
Mechanical Properties ◽  
Industrial Waste ◽  
Construction Materials ◽  
Reference Value ◽  
Physical And Mechanical Properties ◽  
Road Construction ◽  
Experimental Methods ◽  
Frost Heaving ◽  
The World ◽  
Rock And Soil

In many areas, there are still a development road construction materials, traditionally, often use reinforced concrete, asphalt and other adhesive method to strengthen the low strength of rock and soil anti-freeze expansion coefficient; And now all countries in the world are studying how to use industrial production waste development of new composite materials. One of the most development potential, the production of industrial waste - slime. This paper USES the Russian kazan national construction university experimental methods, in the experiment to improve frost heaving soil physical and mechanical properties of the method for the synthesis of adhesive, based on the feasibility and applicability, environmental assessment of research and analysis, for the use of adhesive put forward a lot of reference value.

Development of Fly Ash-Based Geopolymer Lightweight Bricks Using Foaming Agent - A Review

2015 ◽  
Vol 660 ◽  
pp. 9-16 ◽  
Author(s):  
Wan Mastura Wan Ibrahim ◽  
Kamarudin Hussin ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Aeslina Abdul Kadir ◽  
Mohammed Binhussain
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Building Material ◽  
Raw Materials ◽  
Construction Materials ◽  
Physical And Mechanical Properties ◽  
Foaming Agent ◽  
Positive Effects ◽  
The World ◽  
Great Development

Bricks are widely used as a construction and building material due to its properties. Recent years have seen a great development in new types of inorganic cementitious binders called ‘‘geopolymeric cement’’ around the world. This prompted its use in bricks, which improves the greenness of ordinary bricks. The development of fly ash-based geopolymer lightweight bricks is relatively new in the field of construction materials. This paper reviews the uses of fly ash as a raw materials and addition of foaming agent to the geopolymeric mixture to produce lightweight bricks. The effects on their physical and mechanical properties have been discussed. Most manufactured bricks with incorporation of foaming agent have shown positive effects by producing lightweight bricks, increased porosity and improved the thermal conductivities of fly ash-based geopolymer bricks. However, less of performances in number of cases in terms of mechanical properties were also demonstrated.

Selected Physical and Mechanical Properties of Bamboo and Poplar Composite OSB with Different Hybrid Ratios

2012 ◽  
Vol 517 ◽  
pp. 87-95 ◽  
Author(s):  
Cheng Yong ◽  
Ming Jie Guan ◽  
Qi Sheng Zhang
Keyword(s):  
Mechanical Properties ◽  
Oriented Strand Board ◽  
Physical And Mechanical Properties ◽  
High Strength ◽  
Raw Material ◽  
Mixed Structure ◽  
The World ◽  
Utilization Ratio ◽  
Application Fields ◽  
Good Substitute

Bamboo has been known as a good substitute of engineered wood raw material in the world for its naturally oriented high strength. In this paper, we made the bamboo and poplar composite OSB (oriented strand board) with different hybrid ratios in order to understand the technical feasibility of this composite OSB and to expand the engineered utilization of bamboo. The physical and mechanical properties are tested and the effect of different hybrid ratios on physical and mechanical properties of the board was analyzed. Using this bamboo and wood mixed structure, not only are we to improve the properties of the board, but also to expand the application fields, moreover to enhance the utilization ratio of resources.

scholarly journals A Model for In-Plane Capacity of Multi-Leaf Stone Masonry Walls

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Jagat Kumar Shrestha ◽  
Sujit Bhandari
Keyword(s):  
Mechanical Properties ◽  
Mathematical Model ◽  
Physical And Mechanical Properties ◽  
Masonry Wall ◽  
Stone Masonry ◽  
Masonry Walls ◽  
Mechanical Parameters ◽  
The World ◽  
Pushover Curve ◽  
New Construction

Masonry walls with distinct layers, known as multi-leaf masonry walls, are prevalent in many regions of the world including ancient architecture in Europe and new construction in the Himalayan region of South Asia. This paper presents a model for determining the capacity of multi-leaf stone masonry wall from its physical and mechanical parameters. For the study, a “Standard Wall” with typical properties of a multi-leaf stone masonry wall is defined and the capacity of the stone masonry wall is studied varying different physical and mechanical parameters of the wall to explore an analytical model that can represent the capacity of multi-leaf stone masonry. 300 models of multi-leaf stone masonry panels are analysed in ANSYS, and the capacity and displacement parameters are extracted by bilinearization of the pushover curve. As a result, a mathematical model between the capacity of a multi-leaf stone masonry wall and physical and mechanical properties is established.

Production of Cement Blocks and New Ceramic Materials with High Content of Glass Waste

2015 ◽  
Vol 663 ◽  
pp. 34-41 ◽  
Author(s):  
Fernanda Andreola ◽  
Isabella Lancellotti ◽  
Rosa Taurino ◽  
Cristina Leonelli ◽  
Luisa Barbieri
Keyword(s):  
Mechanical Properties ◽  
Environmental Impact ◽  
Economic Burden ◽  
Raw Materials ◽  
Glass Melting ◽  
Physical And Mechanical Properties ◽  
Ceramic Materials ◽  
Raw Material ◽  
Added Value ◽  
Glass Waste

Virgin raw materials can be partially replaced by glass waste in order to reduce the environmental impact being its recycling a significant problem for municipalities worldwide. In Italy in 2013, approximately 1,600,000 tons of container glass have been collected but it was not possible to recycle all of them in the glass melting process.This work is focused on the valorization of glass waste as raw material in new cement and ceramic products, to convert it from an environmental and economic burden to a profitable, added-value resource in the formulation of new mixes. Several parameters, such as grinding, forming, firing, etc. have been studied.It has been optimized the grinding and the reclaiming step of waste to obtain an alternative raw material for hot and cold consolidation processes. Chemical, physical and mechanical properties of products were carried out. The results show new real possibilities to use high amounts of glass waste as an alternative raw material in products consolidated either by hot or cold techniques, reducing the management problems of the glass waste.

Design and Performance Evaluation of an Economical Vertical Axis Wind Turbine

2016 ◽  
Author(s):  
Abdelghani Himri ◽  
Emil Göttlich
Keyword(s):  
Developing Countries ◽  
Wind Turbine ◽  
Global Financial Crisis ◽  
Synchronous Generator ◽  
Vertical Axis ◽  
Good Alternative ◽  
Energy Prices ◽  
Energy Access ◽  
Vertical Axis Wind Turbine ◽  
The World

Nowadays, ensuring access to energy is one of the serious challenges the world confronts. For those who live in poverty, a shortage of access to energy services desperately influences and undermines health, affects education and development. The problem of energy access for the poor countries has become even more intense because of the impacts of climate change, the global financial crisis and volatile energy prices. Then a use of another sources of energy such as wind power could be a good alternative in these countries. This paper represents a design of a vertical axis wind turbine that will produce an output power of 883 W for 9 m/s wind speed from a synchronous generator. The project involves the design and the sizing of all the components of this wind turbine. Oil barrels will be used as blades, Filippini was one of the first ones who developed a wind turbine architecture with half cylinders. Later, some modifications were introduced which leads to Thiès rotor and C-rotor. A simple design was established to facilitate its implementation and reduce its cost. This wind turbine was designed to be used in developing countries. These facts had led to think about an uncomplicated conception and use accessible and cheap equipment which could be available all over the world. Afterwards, a scaled prototype was realized to make some tests in order to examine its efficiency, some modifications were done to observe the feedback. The procedure of the design of the wind turbine was accomplished from the beginning to the end, no step has been skipped. Later, an estimation of cost was completed. The initial cost remains lower than the cost of a wind turbine in the market. Finally, this wind turbine could be constructed easily with accessible materials. An implementation of this machine in developing countries could help people in their lives. An economical model applied to an African country shows that using one turbine could save about 1400 € per year.

scholarly journals RESHORING: ITS INFLUENCE ON THE TERRITORIAL AND PRODUCTION STRUCTURE OF THE US MANUFACTURING

2020 ◽  
pp. 46-54
Author(s):  
Tatiana I. Gorkina ◽  
Keyword(s):  
Developing Countries ◽  
The United States ◽  
Global Market ◽  
Added Value ◽  
Production Structure ◽  
Labor Costs ◽  
Industrial Facilities ◽  
Structure Degradation ◽  
The Us ◽  
The World

The decline in the share of manufacturing in the US GDP in recent decades due to the rapid growth of the tertiary sector, a sharp increase in imports, outsourcing and offshoring of the industry have led to a change in its territorial-production structure, degradation of a number of industrial complexes, and a partial loss of competitive advantages on the global market. The relocation of industrial facilities outside the country took place for such reasons as the low cost of resources and labor in developing countries. In the course of outsourcing and offshoring, American multinational companies have created a complex network of industrial facilities in many countries of the world, mainly in developing and emerging countries. Deindustrialization led to a decrease in the technological level and industrial infrastructure in the US manufacturing industry, which contributed to the deterioration of the country's trade balance, an increase in the budget deficit, and growing dependence upon the world market conditions. The decline in production occurred primarily in labor-intensive and resource-intensive industries, but it practically did not affect production with high added value. Resource price volatility and rising labor costs in developing countries have contributed to the ‗return‘ of enterprises to the United States. The revival of American industry is in line with industry 4.0, based on the accelerated introduction of breakthrough digital technologies. The new industrialization should provide large-scale structural changes not only in industry, but also in the economy as a whole. Reshoring has an impact on the territorial structure of the economy because the most attractive for new industrial facilities are centers with less than 1 million residents, and not the US largest cities that have a complex territorial-production structure burdened with social and environmental problems.

scholarly journals Influence of the absorbed dose of radiation radiation on the destruction of polypropylene, depending on the location of the sample to the electron radiator

2020 ◽  
Vol 64 (11) ◽  
pp. 135-142
Author(s):  
Elvina R. Rakhmatullina ◽  
◽  
Rezeda Yu. Galimzyanova ◽  
Maria S. Lisanevich ◽  
◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ionizing Radiation ◽  
High Temperatures ◽  
Medical Devices ◽  
Absorbed Dose ◽  
Physical And Mechanical Properties ◽  
Special Place ◽  
The World ◽  
Object Of Study ◽  
Surgical Gowns

Currently, polypropylene is one of the most common polymers in the world. Due to its resistance to high temperatures, strength and density, it has found very wide application in the field of medicine. Polypropylene produces medical devices, pharmaceutical packaging, containers, suture threads. But a special place is occupied by non-woven materials based on polypropylene: surgical underwear, surgical gowns. As you know, to sterilize these products using ionizing radiation, which is the most effective of all methods. However, it leads to the destruction of polypropylene, as a result of which its physical and mechanical properties deteriorate. It is also known that the dose of radiation can vary depending on the location of the product in the box. Thus, materials can be degraded to varying degrees depending on the location in the box from the electronic emitter. As the object of study was selected: PP 1562R polypropylene produced by OAO Nizhnekamskneftekhim. It has been established that the location of polypropylene samples upon irradiation has little effect on the degree of their destruction.

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