Faculty of Mechanical Engineering, Lj. (FSLJ)
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Postopki za izdelavo kompozitov iz neskončnih vlakenKovač, Miran, 1954-Med postopki za izdelavo kompozitov iz neskončnih vlaken se za izdelavo profilov s konstantnim prerezom največ uporablja pultruzija. Opisan je kontinuirni postopek izdelave kompozitnega materiala s ... pomočjo vlečenja skozi oblikovalno matrico in ogrevano orodje, s katerim lahko izdelujemo tudi votle profile. Med pultruzijo moramo zagotoviti iztisnjenje zraka izmed vlaken in njegovo nadomestitev s smolo, pri tem pa želimo ohraniti velik volumski delež vlaken v kompozitu. Večina smol je nagnjena k penjenju, kar pomeni, da med procesom v smoli radi nastajajo mehurčki. Njihovo nastajanje preprečujemo s protipenilnimi dodatki, ki pa slabšajo adhezijo med smolo in vlakni. Slaba adhezija med vlakni in smolo ter ujeti zračni mehurčki vodijo do zgodnje delaminacije med upogibno obremenitvijo profilov med uporabo. V praksi moramo vedno poiskati optimalno kompromisno rešitev.Source: PlastForma. - ISSN 1408-1903 (Let. 4, št. 1, feb. 1999, str. 16)Type of material - article, component partPublish date - 1999Language - slovenianCOBISS.SI-ID - 3158299
Author
Kovač, Miran, 1954-
Topics
kompoziti |
izdelave kompozitov |
postopki izdelave |
pultruzija |
kompoziti |
matrice |
mehurčki |
pultruzija |
vlakna |
smole |
composites |
dies |
bubbles |
pultrusion |
resins |
fiber
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Kovač, Miran, 1954- | 08136 |
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