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Tannage of I-Oxazolidine
Author(s): Li Shuqing, Gu Qingyuan, Chen Zhijun, Shan Zhihua
Pages: 7-
10
Year: 2008
Issue:
19
Journal: CHINA LEATHER
Keyword: 噁唑烷; 预鞣剂; 助鞣; 结合鞣;
Abstract: 对Ⅰ型噁唑烷(I-Oz)的单独鞣革、无盐浸酸前预处理、铬鞣后期助鞣与植物鞣剂结合鞣4种情况下的鞣法工艺进行研究.结果表明:I-Oz单独鞣革在2个pH值范围内有较好的鞣性,鞣革的收缩温度可达到87℃;作为无盐浸酸预鞣剂.当用量达到2%时,可以完全抑制后续浸酸工序中的膨胀;用于助鞣当I-Oz用量在1%~4%,成革Cr2O3增量在11%~36%;结合鞣时,在栲胶和I-Oz用量分别为10%和4%时,得到的鞣革的收缩温度最高达94.8℃.
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