摘要
Tamai,Hamilton,Carre等曾通过测量烷烃-水双液参照体系在固体表面的接触角,采用基于界面非色散成分的均方关系计算了高表面能固体的表面能色散成分(γ_s^d)及非色散成分(γ_s^p)。对此计算方法,Fowkes曾给予批评,提出界面能的非色散成分主要来源于酸碱配位作用。基于非色散成分均方关系的计算不能正确反映实际情况,本研究改进了由双液法接触角值计算γ_s^d值的方法。
A modined method for the determination of dispersion component of surface enorgy
of solids (γ_s^d) is presented, in which the determination is based on measuring the contact
angle of the interface system consisting of the alkane series (H), water (W) and solids
(S) including H-W-S and S-H-W systems. The results show the γ_s^d value
determined from the glass-H-W system is larger than that from the H-W-glass system.
By use of this method, the value of steel(104.7mJ/m^2) is found to be close to the reported
value determined by gas adsorption method. Having been treated with alcoholic 0.5%
NaOH solution, the γ_s^d values of both steel and stainless steel increase remarkably.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1989年第9期907-910,共4页
Acta Chimica Sinica
基金
中国科学院基金资助的课题
