摘要
制备氧化环糊精并对其进行结构分析,确定其分子式为C42H85O41。使用该氧化环糊精与FeSO4和THPS结合使用鞣制浸酸绵羊皮,测定鞣后坯革的收缩温度和干热变性温度来预测氧化环糊精的鞣性,推测原位结合鞣的机理。试验发现:氧化环糊精单独鞣制效果不好,但是与FeSO4、THPS结合使用时坯革收缩温度可达90℃以上,且先FeSO4鞣后THPS、氧化环糊精处理对胶原的稳定性提高最明显。
The oxidized cyclodextrin was prepared and its molecular formula was conformed by FT - IR, ^13CNMR, Elementary analysis, which is C42H85O41. Then the C42H85O41 combined with FeSO4 and THPS was used to tan pickled sheep skin. By testing the shrinkage temperature and dry thermal denaturation temperature of leather tanned with the three materials, the tanning properties of oxidized cyclodextrin can be determined and the mechanism of combination tannage can be proposed. The results show that the tanning power of oxidized cyclodextrin is week, but the leather tanned with FeSO4, THPS and oxidized cyclodextrin has an excellent hydrothermal stability, whose Ts can reach 90℃. The best tanning effect of this in - situ polymerization is FeSO4 tanning first and then with THPS and oxidized cyclodextrin tanning, the Ts of leather is 94.8℃.
出处
《中国皮革》
CAS
北大核心
2009年第13期16-20,共5页
China Leather
基金
高等学校博士学科专项科研基金资助课题(200806101129)
973前期项目(2007CB616909)
关键词
氧化环糊精
鞣制
收缩温度
原位结合鞣
oxidized cyclodextrin
tanning
shrinkage temperature
in- situ combination tannage
