Unilateral NMR and thermal microscopy studies of vegetable tanned leather exposed to dehydrothermal treatment and light irradiation
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- 作者：Elena Badeaa ; b ; elena.badea@unito.it" class="auth_mail" title="E-mail the corresponding author ; Claudiu Şendreaa ; c ; Cristina Carşoted ; e ; Alina Adamsf ; Bernhard Blü ; michf ; Horia Iovuc
- 关键词：Collagen ; Vegetable tannin ; Leather ; Accelerated ageing ; Unilateral NMR ; imageMHT
- 刊名：Microchemical Journal
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：129
- 期：Complete
- 页码：158-165
- 全文大小：908 K
文摘
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Unilateral NMR and imaging thermal microscopy (imageMHT) were performed on new and artificially aged vegetable leathers.
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Proton relaxation times and shrinkage temperatures depend on both the collagen origin and tannin type.
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Both NMR relaxation times were sensitive to ageing and showed a sudden change when the tannin matrix was depleted.
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Cross-link formation was reflected by concomitant lowering of relaxation times and increase of shrinkage temperature.