Authors:
Ya-juan Wang Sichuan University National Engineering Laboratory for Clean Technology Leather Manufacture 610065 Chengdu China

Search for other papers by Ya-juan Wang in
Current site
Google Scholar
PubMed
Close
,
Jun Guo Sichuan University Department of Biomass and Leather Engineering 610064 Chengdu China

Search for other papers by Jun Guo in
Current site
Google Scholar
PubMed
Close
,
Hui Chen Sichuan University National Engineering Laboratory for Clean Technology Leather Manufacture 610065 Chengdu China

Search for other papers by Hui Chen in
Current site
Google Scholar
PubMed
Close
, and
Zhi-hua Shan

Search for other papers by Zhi-hua Shan in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract  

The thermal stability of sheepskin collagen cross-linked with chrome sulfate and mimosa (MI)–oxazolidine (OZ), respectively, had been researched in this experiment. All samples’ shrinkage temperatures (Ts) are determined by a special Ts-testing-apparatus and denaturation temperatures (Td) are determined by the differential scanning calorimetry. The relations between the modified collagens containing moisture and their hydrothermal stability, Ts or Td, were studied. The results show that the cross linking agents can enhance the thermal stability of modified collagen whose Ts are 109.8 and 110.6 °C for collagen treated with chrome and MI–OZ, respectively. When the samples contain 25–71.9% moisture for chrome leather and 20–71.1% for leather treated with MI–OZ, the hydrothermal stability will decrease with the increase of moisture. It was found that the difference between Ts and Td of collagen modified by chrome is more obvious than that of collagen modified with MI–OZ. And when the moisture of chrome leather exceeds 55%, Td cannot express thermal stability of modified collagen as a substitute for Ts, and the moisture is 40% for leather tanned with MI–OZ.

  • Collapse
  • Expand

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

For subscription options, please visit the website of Springer Nature.

Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
May 2024 4 0 0
Jun 2024 3 2 1
Jul 2024 8 0 0
Aug 2024 9 0 0
Sep 2024 26 0 0
Oct 2024 20 0 0
Nov 2024 2 0 0