| Titre : |
The aggregation behaviour of leather collagen Fibres during drying |
| Type de document : |
texte imprimé |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 254-257 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Collagène
Cuir -- Séchage
Précipitation (chimie)
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The rule for the changes and mechanism influencing the structure of leather during drying were studied from the point of view of fibre movement, based on the stress state and combination mode of collagen fibres. The effect of capillary pressure difference force (CPDF) and hydrogen bonds on the aggregation behaviour of leather's collagen fibres during drying was investigated. The results showed that, during hang drying, under the action of CPDF, collagen fibres will move towards each other and bond by hydrogen bonds thus making the structure of dried leather stable. During freeze drying, the collagen fibres are not affected by CPDF and the fibres tend to maintain the original dispersed state. During hang drying, when the hydrogen bond force between collagen fibres is weakened by fatliquoring, the aggregate structure of collagen fibres is unstable, and collagen fibres can be easily re-dispersed by milling. The results of this research confirmed that, during drying, the change in the collagen fibres' aggregate structure is due to the process inwhich collagen fibres move and combine under the action of 'force'. The final dried leather structure is determined by the stress state and b combining ways of collagen fibres during drying. |
| Note de contenu : |
- Analysis of influence factors of the change of collagen fibres aggregated structure during drying
- Effect of CPDF on the aggregate behaviour of collagen fibres during drying
- Effect of hydrogen bond combination on the aggregation behaviour of collagen fibres during drying
- Table 1 : Fatliquoring processes
- Fig. 1 : Stress state of capillary wall
- Fig. 2 : SEM images of freeze drying and hang drying collagen fibres
- Fig. 3 : Aggregate process of collagen fibres during hang drying and freeze drying
- Fig. 4 : SEM images of no fatliquoring and fatliquoring collagen fibres
- Fig. 5 : The change sketch map of aggregate structure of fatliquoring collagen fibres during hang drying and milling sequentially |
| En ligne : |
https://drive.google.com/file/d/1No4yph7NY9u2mLUVuOYaM-3C9ebE9ttf/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31111 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 102, N° 5 (09-10/2018) . - p. 254-257
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The aggregation behaviour of leather collagen Fibres during drying in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 102, N° 5 (09-10/2018)
