Materials produced from end of life tyres - Steel wire - Determination of the non-metallic content

2019 ◽  
Keyword(s):  
End Of Life ◽  
Steel Wire

Functionalized carbon nanotube/ionic liquid-coated wire as a new fiber assembly for determination of methamphetamine and ephedrine by gas chromatography-mass spectrometry

2014 ◽  
Vol 6 (21) ◽  
pp. 8645-8653 ◽  
Author(s):  
Omid Narimani ◽  
Naser Dalali ◽  
Kobra Rostamizadeh
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Ionic Liquid ◽  
Carbon Nanotube ◽  
Steel Wire ◽  
Gas Chromatography Mass Spectrometry ◽  
Fiber Assembly ◽  
Coated Wire ◽  
Headspace Spme

Carbon nanotube–ionic liquid gel immobilized on a stainless steel wire as a novel fiber was successfully applied for headspace SPME of methamphetamine and ephedrine.

Characterisation of the Filter Elements of End-of-Life Biological and Chemical Protection Masks Used by the Army

2008 ◽  
Vol 587-588 ◽  
pp. 778-782
Author(s):  
Marta Cabral ◽  
João C. Bordado ◽  
António Correia Diogo ◽  
Fernanda Margarido
Keyword(s):  
End Of Life ◽  
Nitrogen Adsorption ◽  
Added Value ◽  
Carbon Cloth ◽  
Activated Carbon Cloth ◽  
Chemical Protection ◽  
Physico Chemical ◽  
Nitrogen Adsorption Isotherms ◽  
Dissolved Components

The main purpose of the present study is to assess the usefulness of filter cartridges from end-of-life biological and chemical protection masks, for other applications (with increased added value) instead of landfill deposition. Filters with different ages up to fifty years, were dismantled and divided in their components. Physico-chemical characterisation of each filter cartridge component was performed using different techniques such as: optical microscopy, Fourier transform infrared spectroscopy, pyrolysis, particle size distribution by laser diffraction, surface area determination from the nitrogen adsorption isotherms at 77K, determination of open porosity by helium pycnometry, and dynamic mechanical thermal analysis in the temperature range from -100°C to 200°C. It is shown that the loss of resilience of the rubber sealant is the main factor that controls the shelf life of filter cartridges. On the other hand, most of the charcoal in the activated carbon cloth remains active and can be useful for other less severe applications such as the removal of dissolved components from freshwater and/or marine systems.

Determination of some Mechanical Characteristics by Vibration Testing of Welded Structures with Tubular Wire

2013 ◽  
Vol 814 ◽  
pp. 127-134 ◽  
Author(s):  
Liviu Bereteu ◽  
Raul Moisa ◽  
Mihaela Popescu ◽  
Gheorghe Drăgănescu ◽  
Radu Alexandru Rosu ◽  
...  
Keyword(s):  
Steel Wire ◽  
Welding Process ◽  
Tensile Tests ◽  
Operating Conditions ◽  
Steel Plates ◽  
Vibration Testing ◽  
Welded Structures ◽  
Appropriate Behavior ◽  
Welded Structure

Applicability of the welded structures in different operating conditions requires experimental research developed in conditions previously imposed for each punctual application. There are analyzed in this case, in terms of vibration testing, some welded joints made with usual tubular steel wire. This is the case of the type carbon steel plates S235 JR according to EN 10025, with a thickness of 3 mm welded with MIG/MAG welding process with R713 tubular wire with a diameter of 1.2 mm, using SelcoNeoMig 3500 equipment. By processing the received signal based on the vibrations response to determine the elastic modulus of the welded structure, which will then be compared both with the modulus value obtained by tensile tests, and with the theoretical value obtained. The results thus obtained will be the basis of design, in optimal conditions of the welded structures regarding the appropriate behavior to the demands imposed.

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