阳离子两亲性共聚物在有机鞣革复鞣中的应用

doi:10.19677/j.issn.1004-7964.2024.03.001

皮革科学与工程 ›› 2024, Vol. 34 ›› Issue (3): 1-8.doi: 10.19677/j.issn.1004-7964.2024.03.001

• 试验研究 • 下一篇

阳离子两亲性共聚物在有机鞣革复鞣中的应用

易玉丹¹, 李奇军¹, 王亚楠^1,2,*

1.四川大学制革清洁技术国家工程实验室,四川成都 610065;
2.四川大学皮革化学与工程教育部重点实验室,四川成都 610065

收稿日期:2023-10-25 修回日期:2023-11-13 接受日期:2023-11-15 出版日期:2024-06-01 上线日期:2024-04-25
通讯作者: *王亚楠（1986-）,男,博士,教授,主要从事制革化学、制革清洁技术研究。E-mail:wangyanan@scu.edu.cn。
作者简介:易玉丹（1994-）,女,博士研究生,研究方向:生态皮革鞣制染整材料。E-mail:yiyudan80003@163.com。
基金资助:
国家重点研发计划项目（2022YFF0904100）; 中央高校基本科研业务费专项资金

Application of Cationic Amphiphilic Acrylic Copolymer in Retanning of Organic Tanned Leather

YI Yudan¹, LI Qijun¹, WANG Yanan^1,2,*

1. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China;
2. Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China

Received:2023-10-25 Revised:2023-11-13 Accepted:2023-11-15 Published:2024-06-01 Online:2024-04-25

摘要/Abstract

摘要： 通过自由基聚合反应制备了阳离子两亲性共聚物（PSD）,并将其用于TWS有机鞣革的复鞣。动态光散射和扩散波谱结果表明,PSD在水中的聚集程度随着pH提高、温度降低及浓度提高而增大。故选择pH 4、温度40 ℃的工艺条件用PSD对有机鞣革复鞣。PSD可渗透至有机鞣革的原纤维层级并形成疏水薄膜,从而显著提高坯革整体的疏水性,动态防水透水时间从0.14 min提高至10~20 min。此外,PSD促进了有机鞣革对阴离子加脂剂的吸收,吸收率从88.5%提高至93.7%。PSD用量越大,坯革的疏水性和增厚率提高而柔软度下降。综上,将阳离子两亲性共聚物应用于有机鞣革的复鞣能够提高成革的综合性能,这有助于发展完善无铬有机鞣制体系,制造高性能无金属生态皮革。

关键词: 阳离子聚合物, 两亲性, 聚集行为, 复鞣, 有机鞣革, 疏水性

Abstract: Cationic amphiphilic copolymer (PSD) was synthesized by free radical polymerization reaction and then was applied in the retanning of TWS organic tanned leather. Dynamic light scattering and diffusing wave spectroscopy showed that the aggregation degree of PSD in water increased with the increased pH, the decreased temperature and the increased concentration. Therefore, the retanning of organic tanned leather with PSD was carried out at pH 4 and 40 ℃. PSD could penetrate into the hierarchy of collagen fibrils of the organic tanned leather and form a hydrophobic film, which remarkably improved the hydrophobicity of the crust leather. The penetration time of water increased from 0.14 min to 10-20 min in dynamic waterproofness determination. In addition, PSD promoted the absorption of anionic fatliquor by the organic tanned leather, with the absorption rate increasing from 88.5% to 93.7%. The hydrophobicity and the thickening rate of the crust leather were enhanced, while the softness decreased as the dosage of PSD increased. In summary, the application of cationic amphiphilic copolymers in retanning of organic tanned leather can improve the comprehensive performance of the finished leather, which contributes to developing the chrome-free organic tanning system and producing high-performance metal-free eco-leather.

Key words: cationic polymer, amphiphilicity, aggregation behavior, retanning, organic tanned leather, hydrophobicity

中图分类号:

TS543

易玉丹, 李奇军, 王亚楠. 阳离子两亲性共聚物在有机鞣革复鞣中的应用[J]. 皮革科学与工程, 2024, 34(3): 1-8.

YI Yudan, LI Qijun, WANG Yanan. Application of Cationic Amphiphilic Acrylic Copolymer in Retanning of Organic Tanned Leather[J]. Leather Science and Engineering, 2024, 34(3): 1-8.

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阳离子两亲性共聚物在有机鞣革复鞣中的应用

Application of Cationic Amphiphilic Acrylic Copolymer in Retanning of Organic Tanned Leather

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