[article]
| Titre : |
The inducement and modulation of collagen fiber on crystal morphology of calcium carbonate |
| Type de document : |
texte imprimé |
| Auteurs : |
Lihong Fu, Auteur ; Shuling Chai, Auteur ; Cheng Jingqiu, Auteur |
| Année de publication : |
2009 |
| Article en page(s) : |
p. 204-209 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Based on the fundamental principles of biomineralization, a CaCO3/proteins composite can be synthesized by biomimetic synthesis under dynamic conditions, using collagen fiber as the matrix. The inducement and modulation of collagen fibril on the crystal morphology of calcium carbonate was studied. The crystalline structure and polymorph of calcium carbonate at different mass ratio of [Collagen fiber]/[Ca2+] was characterized using X-ray diffraction(XRD) and refined with Rietveld method. The microstructure parameters, such as the lattice strain, bond length, crystallite size (A, B and C), density of calcium carbonate cell, were calculated to characterize the crystalline structure of calcium carbonate at atom level. The polymorph of calcium carbonates can be changed by the [collagen fiber]/[Ca2+] ratio. The degree of super-saturation and number of nucleation have greater influence on the lattice strain, the lattice strain positively correlates to crystallite size nonlinearly. The crystals face, being a more perfect face and with minor defects, had greater stability. By increasing [collagen fiber]/[Ca2+] ratio and crystallite size rise, the vitality of calcium carbonate enhanced. |
| En ligne : |
https://drive.google.com/file/d/1rIyeEav9A1xofHo3-QDCaUdoKOTnNf35/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5986 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CIV, N° 6 (06/2009) . - p. 204-209
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