| Titre : |
Suitability of pore measurement methods for characterizing the hierarchical pore structure of leather |
| Type de document : |
texte imprimé |
| Auteurs : |
Xiu He, Auteur ; Wang Ya-nan, Auteur ; Jianfei Zhou, Auteur ; Haobo Wang, Auteur ; Wei Ding, Auteur ; Bi Shi, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 41-47 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Caractérisation
Cuirs et peaux -- Analyse
Mesure
Pore (anatomie)Ouverture imperceptible dans la peau de l’homme ou de l’animal, par où se fait la transpiration. (wiktionnaire)
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Pore structure of leather plays an important role in leather-making process as well as in characterization of comprehensive properties of leather. In this study, scanning electron microscopy, mercury intrusion porosimetry (MIP), capillary flow porometry and nitrogen adsorption techniques were used for characterization of the hierarchical pore structure of leather. From the comparison, MIP was found to be more suitable for pore measurement of leather in consideration of its extensive measuring range (from 5.48 nm to 120 μm), high accuracy (measuring both through pores and blind pores in leather) and satisfactory repeatability (with RSD of 3.25% and 1.73% for average pore diameter and porosity, respectively). Then the MIP test conditions were optimized. The appropriate conditions were found to be that a leather sample (approx. 3 cm × 2 cm and 0.6 g) is used for determination with a stem volume around 50%. Blank correction is conducted in the measurement with the maximum pressure of 33000 psia and the equilibration time of 10 s. In general, the characterization of the hierarchical pore structure of leather by MIP is a meaningful aid to explore the relationship between structure and property of leather. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Preparation of leather samples - SEM analysis - MIP analysis - CFP analysis - Nitrogen adsorption analysis - Optimization of MIP test conditions for leather
- RESULTS AND DISCUSSION : SEM analysis - Comparison of three pore measurement methods - Optimization of MIP test conditions for leather |
| En ligne : |
https://drive.google.com/file/d/1G-t15UG4r2QbLT4DR05dBkonoAUN-kea/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31716 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXIV, N° 2 (02/2019) . - p. 41-47
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