caa a22 4500 47576367X CHVBK 20180406123558.0 cr unu---uuuuu 170329e20000901xx s 000 0 eng 10.1007/s003960000332 doi (NATIONALLICENCE)springer-10.1007/s003960000332 A study on the surface free energy of modified silica fillers and poly(ethylene terephthalate) fibers by inverse gas chromatography [Elektronische Daten] [M. Kimura, S. Kataoka, K. Tsutsumi] The surface free energy of modified silica fillers and poly(ethylene terephthalate) (PET) fibers was analyzed by inverse gas chromatography in order to investigate the relationship between their surface characteristics and the performance of the composite formed from these materials. The adsorption isotherms of n-heptane and 1-propanol were determined by the elution-peak-maximum method. The dispersive and polar components of the surface free energy were determined by use of the Young-Dupré equation and the Fowkes equation on the basis of the saturated spreading pressure derived from the Gibbs adsorption equation. The acidity and the basicity of the surface were estimated by the specific retention volume of each probe molecule with different donor number and acceptor number. It was found that the dispersive component of the surface free energy for modified silica fillers was mostly lower than that for original silica filler. The polar component of the surface free energy for ethylene glycol modified silica filler became large, while that for n-butanol modified silica filler decreased remarkably. It was also found that original silica filler exhibited high acidity, while modified silica fillers exhibited low acidity. Although these methods have been applied to PET fibers, the surface free energy could not be determined quantitatively because of the surface change during the pretreatment of PET fibers. It was observed that the polar component of the surface free energy decreased when the pretreatment was made at a temperature higher than the glass-transition temperature of PET. It became clear that the interaction between modified silica fillers and PET fibers correlated well with the basicity of the fillers, but not with their acidity. Springer-Verlag Berlin Heidelberg, 2000 Key words Surface free energy nationallicence Silica nationallicence Modification nationallicence Poly(ethylene terephthalate) nationallicence Interaction of composite interface nationallicence Kimura M. Toray Industries Inc., Sonoyama 1-1-1 Otsu, Shiga 520-8558, Japan, JP aut Kataoka S. Toyohashi University of Technology Tempaku-cho, Toyohashi 441-8580, Japan e-mail: tsutsumi@tutms.tut.ac.jp Tel.:+81-532-470111 Fax: +81-532-475460, JP aut Tsutsumi K. Toyohashi University of Technology Tempaku-cho, Toyohashi 441-8580, Japan e-mail: tsutsumi@tutms.tut.ac.jp Tel.:+81-532-470111 Fax: +81-532-475460, JP aut https://doi.org/10.1007/s003960000332 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s003960000332 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kimura M. Toray Industries Inc., Sonoyama 1-1-1 Otsu, Shiga 520-8558, Japan, JP aut NATIONALLICENCE 700 1- Kataoka S. Toyohashi University of Technology Tempaku-cho, Toyohashi 441-8580, Japan e-mail: tsutsumi@tutms.tut.ac.jp Tel.:+81-532-470111 Fax: +81-532-475460, JP aut NATIONALLICENCE 700 1- Tsutsumi K. Toyohashi University of Technology Tempaku-cho, Toyohashi 441-8580, Japan e-mail: tsutsumi@tutms.tut.ac.jp Tel.:+81-532-470111 Fax: +81-532-475460, JP aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer