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;C 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T;(失重5%温度)、T;(失重80%温度)和790℃时的残留率均提高。
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;C 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.
作者
高于洋
刘绍英
王庆印
王公应
Yuyang Gao;Shaoying Liu;Qingyin Wang;Gongying Wang(Science and Technology on Reactor Fuel and Materials Laboratory,Nuclear Power Institute of China,Chengdu,Sichuan 610213,China;Chengdu Institute of Organic Chemistry,Chinese Academy of Sciences,Chengdu,Sichuan 610041,China;National Engineering Laboratory for VOCs Pollution Control Material&Technology,University of Chinese Academy of Sciences,Beijing 101408,China)
出处
《日用化学工业》
CAS
北大核心
2022年第5期499-505,共7页
China Surfactant Detergent & Cosmetics
基金
四川省重点研发项目(2020YFG0159)。
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
melamine-formaldehyde
graft
1H
1H
2H
2H-Perfluoro-1-octanol
hydrophobicity
surface enrichment
