皮革科学与工程 ›› 2024, Vol. 34 ›› Issue (2): 14-21.doi: 10.19677/j.issn.1004-7964.2024.02.003

• 试验研究 • 上一篇    下一篇

微乳液皮革脱脂剂的制备及性能研究

吕斌1,2,3, 张翎钰1,2,3, 石传晋4, 高党鸽1,2,3,*, 马建中1,2,3   

  1. 1.陕西科技大学 轻工科学与工程学院,陕西 西安 710021;
    2.西安市绿色化学品与功能材料重点实验室,陕西 西安 710021;
    3.陕西科技大学 轻化工程国家级实验教学示范中心,陕西 西安 710021;
    4.中国皮革和制鞋工业研究院(晋江)有限公司,福建 晋江 3622001
  • 收稿日期:2023-08-31 修回日期:2023-11-05 接受日期:2023-11-13 出版日期:2024-04-01 上线日期:2024-03-07
  • 通讯作者: *高党鸽(1982-),女,博士,教授,主要研究方向:改性胶原纤维用纳米复合材料、功能型高分子的研究。E-mail:dangge2000@126.com。
  • 作者简介:吕斌(1980-),男,博士,教授,主要研究方向:皮革化学品、油田化学品的研究。E-mail:xianyanglvbin@163.com。
  • 基金资助:
    陕西省创新能力支撑计划(2021TD-16)

Study on the Preparation and Performance of Microemulsion Leather Degreasing Agent

LV Bin1,2,3, ZHANG Lingyu1,2,3, SHI Chuanjin4, GAO Dangge1,2,3,*, MA Jianzhong1,2,3   

  1. 1. School of Light Industry Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China;
    2. Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China;
    3. National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an 710021, China;
    4. China Leather and Shoe Industry Research Institute (Jinjiang) Co., LTD., Jinjiang 362200, China
  • Received:2023-08-31 Revised:2023-11-05 Accepted:2023-11-13 Published:2024-04-01 Online:2024-03-07

摘要: 研究了微乳液主表面活性剂种类及配比、助表面活性剂种类、主表面活性剂与助表面活性剂比值及主表面活性剂与D-柠檬烯的比值对伪三相图面积的影响,通过盐度扫描优化了水相中NaCl的用量,获得了微乳液最优制备工艺;通过动态光散射、电导率等对微乳液结构性能进行了表征。结果表明:当脂肪醇聚氧乙烯醚、十二烷基硫酸钠、异构醇醚为主表面活性剂且三者质量比为1∶1∶1,正丁醇为助表面活性剂,主表面活性剂与助表面活性剂的比值为2∶1,主表面活性剂与D-柠檬烯的质量比为2∶1,NaCl用量为4.8%水溶液为水相时,得到的双连续微乳液微乳区面积最大;微乳液的粒径为51.8 nm,多分散指数为0.274,具有较小的粒径及较好的分散性,表面张力为27.3 mN/m,界面张力为0.09 mN/m,乳化、润湿和稳定性能优异;微乳液皮革脱脂剂对多脂绵羊酸皮的脱脂率高于市售皮革脱脂剂。

关键词: 微乳液, 皮革, 脱脂剂, 表面活性剂

Abstract: The effects of microemulsion’s main surfactant type and ratio, co-surfactant type, the ratio of main surfactant to co-surfactant, and the ratio of main surfactant to D-limonene on the area of pseudo-three-phase diagrams were investigated. The optimal preparation process of microemulsion was obtained by optimizing the amount of NaCl in the aqueous phase by salinity scanning. The structural properties of microemulsion were characterized by dynamic light scattering and electrical conductivity. Results showed that the bicontinuous microemulsion with the largest microemulsion area was obtained when the conditions were as follow: fatty alcohol polyoxyethylene ether, sodium dodecyl sulfate and isomeric alcohol ether were used as the main surfactants and their mass ratio was 1∶1∶1; n-butanol was the co-surfactant and the ratio of the main surfactants to the co-surfactant was 2∶1; the mass ratio of the main surfactants to D-limonene was 2∶1, and the aqueous solution with the dosage of NaCl of 4.8% served as the aqueous phase. The microemulsion’s particle size was 51.8 nm and its polydispersity index was 0.274, indicating the smaller particle size and better dispersion. The microemulsion’s surface tension was 27.3 mN/m and its interfacial tension was 0.09 mN/m, and its emulsification, wettability and stability performance were excellent. For the fatty pickled sheep skin, the degreasing rate of the microemulsion leather degreasing agent was higher than that of the commercially available leather degreasing agent.

Key words: microemulsion, leather, degreasing agent, surfactant

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