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001-es BibID:	BIBFORM018664
035-os BibID:	(WoS)000242060800038 (Scopus)33751509348
Első szerző:	Borda Jenő (vegyész)
Cím:	Novel polyurethane elastomer continuous carbon fiber composites : Preparation and characterization / Jenő Borda, Sándor Kéki, Istvánné Ráthy, Ildikó Bodnár, Miklós Zsuga
Dátum:	2007
ISSN:	0021-8995
Megjegyzések:	Preparation and characterization of novel polyurethane (PUR)-carbon fiber (CF) composites are reported. The reinforcement of PUR elastomers was achieved using unidirectional continuous CFs with different coatings (uncoated and epoxy and polyester resin coatings) by applying molding for the preparation of PUR-CF composites. Considerable reinforcement of PUR was attained even at relatively low CF content, e.g., maximum stress and Young's modulus of PUR-CF composite at CF content 3% (m/m) were found to be 3-5 and 4-10 times higher than those of the PUR-matrix, respectively. In addition, a linear relationship between the Young's modulus and the CF content was found as well as linear variation of maximum stress with the CF content was also observed. The adhesion of CF to the PUR-matrix was strong in each case as concluded from the strain-stress and the scanning electron microscopy (SEM) investigations. However, the extent of reinforcement of PUR at a given CF content was found to depend greatly on the coatings of CF, and increased in the following order: epoxy resin < polyester resin < uncoated. The effect of the coating of CF on the reinforcement of FUR is also discussed.
Tárgyszavak:	Természettudományok Kémiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk polyurethane reinforcement composite coatings
Megjelenés:	Journal of applied polymer science. - 103 : 1 (2007), p. 287-292. -
További szerzők:	Kéki Sándor (1964-) (polimer kémikus) Ráthy Istvánné (1958-) (gépészmérnök) Bodnár Ildikó (1975-) (vegyész) Zsuga Miklós (1944-) (polimer kémikus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM043407
035-os BibID:	(WoS)000298637300022 (Scopus)84855325819
Első szerző:	Ráthy Istvánné (gépészmérnök)
Cím:	Preparation and characterization of poly(vinyl chloride)-continuous carbon fiber composites / Istvánné Ráthy, Ákos Kuki, Jenö Borda, György Deák, Miklós Zsuga, Kálmán Marossy, Sándor Kéki
Dátum:	2012
ISSN:	0021-8995
Megjegyzések:	In this article, we report on the preparation and characterization of novel poly(vinyl chloride) (PVC)carbon fiber (CF) composites. We achieved the reinforcement of PVC matrices with different plasticizer contents using unidirectional continuous CFs by applying a warm press and a cylinder press for the preparation of the PVCCF composites. We achieved considerable reinforcement of PVC even at a relatively low CF content; for example, the maximum stress (sigma(max)) of the PVCCF composite at a 3% CF content was found to be 1.52 times higher than that of the PVC matrix. There were great differences among the Young's modulus values of the pure PVC and PVCCF composites matrices. The absolute Young's modulus values were in the range 11001300 MPa at a 3% CF content; these values were almost independent of the plasticizer content. In addition, we found a linear relationship between sigma(max) and the CF content and also recognized a linear variation of the Young's modulus with the CF content. The adhesion of CF to the PVC matrix was strong in each case, as concluded from the strainstress curves and the light microscopy and scanning electron microscopy investigations. The mechanical properties of the PVCCF composites with randomly oriented short (10 mm) fibers were also investigated. At low deformations, the stiffness of the composites improved with increasing CF content. Dynamic mechanical analysis (DMA) was used to determine the glass-transition temperature (T-g) of the PVCCF composites. The high increase in the Young's modulus entailed only a mild T-g increase.
Tárgyszavak:	Műszaki tudományok Anyagtudományok és technológiák idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk composites pony(vinyl chloride) reinforcement
Megjelenés:	Journal of Applied Polymer Science. - 124 : 1 (2012), p. 190-194. -
További szerzők:	Kuki Ákos (1966-) (villamosmérnök) Borda Jenő (1946-) (vegyész) Deák György (1954-) (polimer kémikus) Zsuga Miklós (1944-) (polimer kémikus) Marossy Kálmán Kéki Sándor (1964-) (polimer kémikus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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