Wyniki wyszukiwania - BazTech

1

Optimum Drafting Conditions Of Polyester And Viscose Blend Yarns

Hatamvand M., Mirjalili S., Fattahi S., Bashir T., Skrifvars M.

Autex Research Journal

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2017

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Vol. 17, no. 3

213--218

EN

In this study, we used an experimental design to investigate the influence of the total draft, break draft, distance between the aprons (Clips) and production roller pressure on yarn quality in order to obtain optimum drafting conditions for polyester and viscose (PES/CV) blend yarns in ring spinning frame. We used PES fibers (1.4 dtex × 38 mm long) and CV fibers (1.6 dtex × 38 mm long) to spin a 20 Tex blend yarn of PES (70%)/CV (30%) blend ratio. When the break draft, adjustment of distance between of aprons and roller pressure is not reasonable, controlling and leading of the fibers is not sufficient for proper orientation of the fibers in the yarn structure to produce a high quality yarn. Experimental results and statistical analysis show that the best yarn quality will be obtained under drafting conditions total draft of 38, 1.2 break draft, 2.8 mm distance between of aprons and maximum pressure of the production top roller (18daN).

2

Products obtained from decomposition of glass fibre-reinforced composites using microwave pyrolysis

Åkesson D., Foltynowicz Z., Christéen J., Skrifvars M.

Polimery

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2013

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T. 58, nr 7-8

582--586

PL

Zbadano możliwości uzyskania użytecznych produktów z rozkładu odpadowych kompozytów wzmacnianych włóknem szklanym z wykorzystaniem pirolizy mikrofalowej. Pirolizie mikrofalowej poddano kawałki śmigieł elektrowni wiatrowej. Powstające podczas pirolizy gazowe i olejowe produkty scharakteryzowano za pomocą chromatografii gazowej sprzężonej ze spektrometrem masowym (GC-MS). Frakcja olejowa zawiera głównie różne związki aromatyczne i charakteryzuje się wartością opałową ok. 36 MJ/kg, co stwarza możliwość jej wykorzystania jako paliwa alternatywnego. Składnikiem tej frakcji jest również ftalan dimetylu o potencjalnej możliwości wykorzystania w syntezie poliestrów. Głównym składnikiem frakcji gazowej jest metan. Odzyskane podczas pirolizy włókno szklane stanowi 70 % początkowej masy kompozytu.

EN

The possibility to obtain useful products from used glass fiber-reinforced composites using microwave pyrolysis were examined. A scrap of blade from a wind turbine was fragmented and microwave-pyrolysed. The oil and gas formed during the pyrolysis were characterized by gas chromatography-mass spectrometry (GC-MS). The oil from pyrolysis consisted mainly of various aromatic compounds and had an energy content of about 36 MJ/kg. The main component of the gaseous products was methane. The glass fiber recovered after pyrolysis represented 70 % of the initial mass of glass fiber-reinforced plastic.

3

Fibre-based single-wire keyboard - the integration of a flexible tactile sensor into e-textiles

Guo L., Soroudi A., Berglin L., Mattila H., Skrifvars M., Torstensson H.

Autex Research Journal

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2011

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Vol. 11, no. 4

106--109

EN

A flexible textile keyboard, using carbon nanotube (CNT) filled polypropylene (PP) composite fibres, is introduced. The identification of input information is achieved by reading the effective resistance of the conductive composite fibre. By using a single wire, a complex matrix is avoided and the interface between textiles and processing electronics is reduced to a minimum. LabVIEW has been used as the output display of the keyboard indicator for testing. This keyboard is fully flexible and washable, which provides opportunities for its integration with e- textiles.