双短氟碳链非离子表面活性剂的合成及其应用

doi:10.19677/j.issn.1004-7964.2021.01.007

皮革科学与工程 ›› 2021, Vol. 31 ›› Issue (1): 34-39.doi: 10.19677/j.issn.1004-7964.2021.01.007

双短氟碳链非离子表面活性剂的合成及其应用

沈益超^1,2, 金勇^1,2,*, 周荣^1,2, 周毓棠^1,2

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

收稿日期:2020-06-17 上线日期:2021-03-02
通讯作者: *金勇(1968-),男,教授,jinyong@scu.edu.cn,主要从事高分子类皮革化工材料的合成及应用研究。
作者简介:沈益超(1994-),男,硕士研究生,951373771@qq.com。
基金资助:
四川省科技计划资助项目（2020YFG0069）

Synthesis of Double Short Fluorocarbon Nonionic Surfactant and its Application in Leather Fatliquoring

SHEN Yichao^1,2, JIN Yong^1,2,*, ZHOU Rong^1,2, ZHOU Yutang^1,2

1. Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065 China;
2. National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, China

Received:2020-06-17 Online:2021-03-02

摘要/Abstract

摘要： 以聚乙二醇-600、异佛尔酮二异氰酸酯以及1H,1H,2H,2H-全氟己-1-醇为原料,一锅法合成了一类双短氟碳链非离子表面活性剂（F4-PEG600-F4）,通过卡尔费休法,测得其含水量在0.1%以下（有效成分>99.9%）。采用FT-IR、1H-NMR对产物结构进行了表征,并研究了其在水溶液中的表面活性。表面张力测试表明,F4-PEG600-F4的临界胶束浓度为0.40 mmol/L,其临界表面张力可以降低至21.0 mN/m（25 ℃）,且加入1.0 % NaCl或调节pH至3.0~10.0时,其水溶液表面张力基本没有改变,仍维持在21.0 mN/m左右,具有较好的耐电解质和pH稳定性。将F4-PEG600-F4作为加脂助剂,应用于铬鞣山羊皮的加脂工艺中。结果表明,在加脂温度为40 ℃、表面活性剂用量为1 %的条件下,加脂后成革的综合性能最佳,其柔软度、力学性能显著提高,其抗拉强度、断裂伸长率和撕裂强度分别提高了19.0%、4.2%和18.5%,成革表面防水性也明显增强。

关键词: 非离子表面活性剂, 短氟碳链, 表面活性, 皮革加脂, 表面防水

Abstract: A class of nonionic surfactant (F4-PEG600-F4) containing double short fluorocarbon chains was one-pot synthesized using polyethylene glycol-600, isophorone diisocyanate and 1H,1H,2H,2H-perfluorohexan-1-ol as raw materials. By Karl Fischer method, the water content was measured to be below 0.1% (active ingredients > 99.9%). The structure of F4-PEG600-F4 was characterized by FT-IR and 1H-NMR, and its surface activity was studied in aqueous solution. The surface tension results show that the critical micelle concentration of F4-PEG600-F4 was 0.40 mmol/L, and the surface tension could be reduced to 21.0 mN/m (25 ℃). Moreover, when 1.0% NaCl was added or the pH was adjusted to be 3.0-10.0, the critical surface tension of F4-PEG600-F4 remained basically to be about 21.0 mN/m, showing its good electrolyte and pH resistance stability. Meanwhile, F4-PEG600-F4 was used as a fatliquoring agent in the fatliquoring process of chrome-tanned goatskin. The research results showed that under the conditions of 1% dosage and fatliquoring temperature of 40 ℃, the resulting leather exhibited the best overall performance, and its softness and mechanical properties were significantly improved. Its tensile strength, elongation at break and tear strength were increased by 19.0%, 4.2% and 18.5% respectively, and the waterproof performance of the leather surface was also significantly enhanced, too.

Key words: nonionic surfactant, short fluorocarbon chains, surface activity, leather fatliquoring, surface waterproofing

中图分类号:

TS529.1

沈益超, 金勇, 周荣, 周毓棠. 双短氟碳链非离子表面活性剂的合成及其应用[J]. 皮革科学与工程, 2021, 31(1): 34-39.

SHEN Yichao, JIN Yong, ZHOU Rong, ZHOU Yutang. Synthesis of Double Short Fluorocarbon Nonionic Surfactant and its Application in Leather Fatliquoring[J]. Leather Science and Engineering, 2021, 31(1): 34-39.

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双短氟碳链非离子表面活性剂的合成及其应用

Synthesis of Double Short Fluorocarbon Nonionic Surfactant and its Application in Leather Fatliquoring

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