Surface modification of waterborne polyurethane
Surface modification of waterborne polyurethane
复制标题
DOI：
10.1016/j.colsurfa.2006.05.036
复制
发表时间：
2006-11
期刊：
影响因子：
--
通讯作者：
H. Jeong;M. H. Lee;B. Kim
中科院分区：
文献类型：
--
作者：
H. Jeong;M. H. Lee;B. Kim
合成了具有与聚氨酯硬段相同重复单元的含氟聚氨酯低聚物（SMA），并将其与聚氨酯基体共混分散。XPS和静态接触角的测量结果表明，分散流延膜的表面显着富集与SMA，虽然SMA和基础PU是在本体相混溶，显示出一个单一的玻璃化转变温度。AFM表明，分散体流延膜的表面粗糙度增加了13倍以上的添加SMA（15%）提供了可能的机制，增加的水和油的阻力，以及低摩擦系数的膜。
Fluorinated urethane oligomers (SMAs) having repeat unit identical to the hard segment of base polyurethane (PU) have been synthesized and blended with base PU prior to dispersion. XPS and static contact angle measurements showed that surfaces of dispersion cast film are significantly enriched with SMA although SMA and base PU were miscible in bulk phase showing a single glass transition temperature. AFM showed that surface roughness of the dispersion cast film increased over 13 times with the addition of SMA (15%) providing possible mechanism of increased water and oil resistance as well as low friction coefficient of the film.