Analysis on PLA Textile Fiber Production Technology and Properties

2011 ◽  
Vol 52-54 ◽  
pp. 2145-2150 ◽  
Author(s):  
Tao Chang
Keyword(s):  
Fiber Length ◽  
Raw Materials ◽  
Physical And Mechanical Properties ◽  
Economic Benefits ◽  
Low Energy ◽  
Social Benefits ◽  
Textile Fiber ◽  
Fiber Production ◽  
Low Energy Consumption ◽  
Combustion Property

PLA fiber is a green eco-fiber of excellent properties and sustainable development, with adequate sources of raw materials, low energy consumption, good biodegradability, and excellent physical and mechanical properties, thus the development of this product not only has considerable economic benefits, and also has excellent social benefits. In this paper, through comprehensively testing the properties of PLA fiber, it carries out the systematical analysis and research on the Tests of PLA fiber length, fineness, over length, double length, and defects, combustion property, heat resistance, and hydrolysis property, etc. several aspects.

Assessment of environmental and economic benefits of packaging waste system in Italy

2021 ◽  
pp. 37-58
Author(s):  
Francesco Colelli ◽  
Edoardo Croci
Keyword(s):  
Waste Management ◽  
Raw Materials ◽  
Economic Benefits ◽  
Social Costs ◽  
Social Benefits ◽  
Waste Generation ◽  
Macroeconomic Factors ◽  
Packaging Waste ◽  
Avoided Emissions ◽  
Social Costs And Benefits

The paper quantifies social costs and social benefits of packaging waste management system in Italy from 2015 to 2030. Future social costs and benefits are estimated based on the growth of waste generated and on the stringency of recycling and landfilling targets. Packaging waste generation is projected based on macroeconomic factors, consumer practices and technological eco-innovations. Social benefits are derived by the reduction of externalities' correspondent to the achievement of packaging waste management targets. We quantify two environmental ben-efits: avoided emissions and raw materials saved. We find that social costs may rise substan-tially in the future, as total system's operations costs in 2030 may increase by 48% with re-spect to 2015, due to the growth in the quantities of packaging waste generated. Meeting recy-cling and landfilling targets set by the new Circular Economy Package would imply a further 5% increase in total social costs in 2015. This latter increase is more than compensated by so-cial benefits related to the reduction in externalities due to more stringent targets.

scholarly journals Comparison of various methods of flines of flax raw materials used in Kazakhstan

2021 ◽  
pp. 21-26
Author(s):  
G. Ye. Kalzhan ◽  
M. B. Otynshiyev ◽  
B. Zh. Niyazbekov
Keyword(s):  
Mechanical Properties ◽  
Linear Density ◽  
Raw Materials ◽  
Physical And Mechanical Properties ◽  
Flax Fiber ◽  
Textile Fiber ◽  
Optimal Technology ◽  
Treated Fiber ◽  
Materials Used ◽  
Significant Attention

Significant attention in the article is devoted to the study of different technology of the lobe and the physical and mechanical properties of oil flax fiber and primary processing in relation to Kazakhstan.  When studying the technology of oil flax fiber soaking, the task was set of separate the fiber from the stems, removal of lignin and pectin-forming substances. The questions of various technologies of the flax stalks are considered. The most optimal technology for producing textile fiber was determined for the conditions of Kazakhstan. Comparative studies of linear density and length of fibers have been carried out. According to the results obtained, the linear density of the fiber in an aqueous medium is 6.7 T, the result of the treated fiber is 3.1 T. That is, the technology used is to remove lignin and pectin from the fiber.

scholarly journals PRODUCTION OF MAGNESIUM BINDER COMPOSITES USING LOCAL RAW MATERIALS AND TECHNOGENIC PRODUCTS

2021 ◽  
Vol 3 ◽  
pp. 236-241
Author(s):  
Elvija Namsone ◽  
Genadijs Sahmenko ◽  
Aleksandrs Korjakins
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Building Materials ◽  
Raw Materials ◽  
Environmentally Friendly ◽  
Low Energy ◽  
Mechanical And Thermal Properties ◽  
Low Carbon ◽  
Low Energy Consumption ◽  
Caustic Magnesia

Building sector is known as one of the biggest polluters, causing environmental pollution and carbon dioxide emissions, most of which are generated during the production process of building materials. Therefore, researchers and manufacturers have become increasingly interested in environmentally friendly materials with low energy consumption. Magnesium based cements are being studied as an alternative to a widespread material as Portland cement, thus reducing the temperature required for calcination. During this research, magnesium binder-based composites using two types of magnesium (local dolomite waste material and caustic magnesia) were produced. Within the framework of this study, several regimes of thermal treatment were used to produce low carbon dioxide and environmentally friendly magnesium binder composites. Physical, mechanical and thermal properties of obtained specimens were tested. 

Impact of PAU Tree Growers Association of Punjab in Terms of Economic, Personal, Technical and Social Benefits

2020 ◽  
pp. 560-564
Keyword(s):  
Sample Size ◽  
Economic Benefits ◽  
Social Benefits ◽  
Interview Schedule

The present study was undertaken to determine the benefits derived by the respondents being a member of the PAU Tree Growers Association with a sample size of a total of 80 members of the association. The data were collected using an interview schedule pertaining to the benefits derived by the members. The results of the study revealed that the majority of the respondents had derived high technical benefits (96.25 percent), high personal benefits (86.25 percent), high social benefits (70 percent), and medium economic benefits (51.25 percent). Between the various benefits derived by them, technical benefits emerged as the major benefits (mean score =142.4) followed by social benefits (mean score=140.45), personal benefits (mean score=133), and economic benefits (mean score=98.44). Overall the members obtained high benefits from the association (56.25 percent).

A Study on the Use of Bipolar-Particles-Electrodes in Decolorization of Dyeing Effluents and Its Principle

1987 ◽  
Vol 19 (3-4) ◽  
pp. 391-400 ◽  
Author(s):  
Zhou Ding ◽  
Cai Wei Min ◽  
Wang Qun Hui
Keyword(s):  
Energy Consumption ◽  
High Efficiency ◽  
Low Energy ◽  
Acid Dyes ◽  
Underlying Principle ◽  
Low Energy Consumption ◽  
Transparent Liquid

This paper studies the use of bipolar-particles-electrodes in the decolorization of dyeing effluents. Treatment of highly colored solutions of various soluble dyes (such as direct, reactive, cationic or acid dyes) and also samples of dyeing effluents gave rise to an almost colorless transparent liquid, with removal of CODcr and BOD5 being as high as over 80%. The method is characterized by its high efficiency, low energy consumption and long performance life. A discussion of the underlying principle is given.

Bubble Electrospinning and Bubble-Spun Nanofibers

2020 ◽  
Vol 14 (1) ◽  
pp. 10-13 ◽  
Author(s):  
Lynn Y. Wan
Keyword(s):  
Surface Tension ◽  
Low Energy ◽  
Efficient Technology ◽  
High Productivity ◽  
Needleless Electrospinning ◽  
Polymeric Nanofibers ◽  
Low Energy Consumption ◽  
Potential Applications ◽  
Surface Morphologies ◽  
Unique Surface

Electrospinning is a highly efficient technology for fabrication of a wide variety of polymeric nanofibers. However, the development of traditional needle-based electrospinning has been hampered by its low productivity and need of tedious work dealing with needles cleaning, installation and uninstallation. As one of the most promising needleless electrospinning means, bubble electrospinning is known for its advantages of high productivity and relatively low energy consumption due to the introduction of a third force, air flow, as a major force overcoming the surface tension. In this paper, the restrictions of conventional electrospinning and the advantages of needleless electrospinning, especially the bubble electrospinning were elaborated. Reports and patents on bubble-spun nanofibers with unique surface morphologies were also reviewed in respect of their potential applications.

Top-down Fabricated Gold Nanostrip on Silicon-on-insulator Wafer: A Promising Building Block towards Ultra-compact Optical Device

Nanoscale ◽  
2020 ◽  
Author(s):  
Fuping Zhang ◽  
Weikang Liu ◽  
Li Chen ◽  
Zhiqiang Guan ◽  
Hongxing Xu
Keyword(s):  
Optical Communication ◽  
Data Transmission ◽  
Building Block ◽  
High Speed ◽  
Large Data ◽  
Low Energy ◽  
Silicon On Insulator ◽  
Fundamental Building Block ◽  
Low Energy Consumption ◽  
Controllable Fabrication

he plasmonic waveguide is the fundamental building block for high speed, large data transmission capacity, low energy consumption optical communication and sensing. Controllable fabrication and simultaneously optimization of the propagation...

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