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日用化学工业 ›› 2022, Vol. 52 ›› Issue (5): 499-505.doi: 10.3969/j.issn.1001-1803.2022.05.006

• 开发与应用 • 上一篇    下一篇

十三氟辛醇接枝改性三聚氰胺树脂的合成及其疏水性能

高于洋1,刘绍英2,王庆印2,王公应2,3,*()   

  1. 1.中国核动力研究设计院 反应堆燃料及材料重点实验室,四川 成都 610213
    2.中国科学院成都有机化学研究所,四川 成都 610041
    3.中国科学院大学 挥发性有机物污染控制材料与技术国家工程实验室,北京 101408
  • 收稿日期:2022-01-07 修回日期:2022-04-26 出版日期:2022-05-22 发布日期:2022-05-24
  • 通讯作者: 王公应
  • 基金资助:
    四川省重点研发项目(2020YFG0159)

Preparation and hydrophobic properties of melamine-formaldehyde resin grafted by 1H,1H,2H,2H-Perfluoro-1-octanol

Gao Yuyang1,Liu Shaoying2,Wang Qingyin2,Wang Gongying2,3,*()   

  1. 1. Science and Technology on Reactor Fuel and Materials Laboratory, Nuclear Power Institute of China, Chengdu, Sichuan 610213, China
    2. Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China
    3. National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing 101408, China
  • Received:2022-01-07 Revised:2022-04-26 Online:2022-05-22 Published:2022-05-24
  • Contact: Gongying Wang

摘要:

以1H,1H,2H,2H-十三氟-1-辛醇(PF-OH)为改性剂,三聚氰胺和多聚甲醛为原料,二甲基乙酰胺为反应介质,合成了一系列PF-OH接枝改性三聚氰胺树脂(MF-F)。FT-IR和固体13C NMR结果表明PF-OH与三聚氰胺树脂(MF树脂)成功接枝。采用XPS、接触角测定仪和TG对材料进行测定,结果表明:PF-OH的接枝提升MF-F材料的疏水性能,氟元素向材料的表面迁移并发生富集;当PF-OH的摩尔分数为3.0%(以三聚氰胺物质的量计),其水接触角由67.83°增至103.50°,表面自由能由44.5 mN/m降至21.1 mN/m。PF-OH的引入提高MF-F材料的热稳定性,其Td, 5%(失重5%温度)、Td, 80%(失重80%温度)和790 ℃时的残留率均提高。

关键词: 三聚氰胺甲醛树脂, 接枝, 十三氟辛醇, 疏水性能, 表面富集

Abstract:

An anhydrous method was developed for the polymerization of 1H,1H,2H,2H-Perfluoro-1-octanol (PF-OH) grafted melamine-formaldehyde (MF-F) resin aiming at improving the hydrophobic performance of MF material and widening its downstream application. The MF-F resins were characterized by FT-IR and solid state 13C NMR, and it is found that PF-OH is grafted in MF resin matrix. From the results of XPS, the migration and enrichment of the fluorine moieties toward the surface of the MF-F film are verified. The hydrophobicity and thermal stability of MF-F materials were investigated by contact angle and TG analysis. Due to the grafting of PF-OH, the water contact angles of MF-F films increase from 67.83° to 103.50° and the surface free energy reduce from 44.5 to 21.1 mN/m. Furthermore, the TG results show that MF-F materials still exhibit excellent thermal stabilities.

Key words: melamine-formaldehyde, graft, 1H,1H,2H,2H-Perfluoro-1-octanol, hydrophobicity, surface enrichment

中图分类号: 

  • TQ322.4