Syntheses and properties of fluorinated phosphate acrylates used for UV-curing coatings The acrylated perfluoroalkyl phosphates (PFPA I and PFPA II) used as an oligomer and monomer, respectively, for UV-curing systems were synthesized... Syntheses and properties of fluorinated phosphate acrylates used for
UV-curing coatings
The acrylated perfluoroalkyl phosphates (PFPA I and PFPA II) used as an oligomer and monomer, respectively,
for UV-curing systems were synthesized and characterized with 1H NMR and FTIR spectra. The
photopolymerization behavior was investigated by using photo-DSC analysis, showing that both acrylates
were photopolymerized quickly to a moderate final unsaturation conversion at the presence of a
photoinitiator. The limiting oxygen indices of the UV-cured pure filmswere determined to be over 35. The
surface properties of UV-cured polyurethane films added PFPAs, respectively, as additives were investigated
by measuring the contact angles. The results showed that the addition of a small amount of PFPA I or
PFPA II efficiently led to the increases in the contact angles, and the decreases in the surface tension. The
X-ray photoelectron spectroscopy analysis confirmed that the film surface was enriched with fluorinated
species.
合成氟磷酸盐和丙烯酸酯用于物业
紫外光固化涂料
在全氟丙烯酸酯(PFPA I和PFPA二)作为一个低聚物和单体,分别用磷酸盐,
紫外固化系统的合成与1H NMR和红外光谱表征。那个
光聚合行为进行了研究利用照片DSC分析,表明这两个丙烯酸酯
被photopolymerized温和迅速转化为Z终的不饱和度的一种存在
光引发剂。紫外线的极限氧指数烤烟纯filmswere确定为35岁以上。那个
表面性能的紫外光固化聚氨酯薄膜补充PFPAs,分别作为添加剂进行了研究
通过测量接触角。结果表明,一个PFPA本人或少量增加
PFPA二效率导致接触角的增加,在表面张力的下降。那个
X射线光电子能谱分析证实,薄膜表面富含氟化
物种。