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化学学报
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化学学报 ›› 1989, Vol. 47 ›› Issue (9): 907-910. 上一篇    下一篇

研究论文

固体表面能色散成分的测定

潘慧铭;黄绍钧;刘杰;黄素娟   

  1. 华南理工大学材料科学研究所
  • 发布日期:1989-09-15

The determination of dispersion component of surface energy of solids

PAN HUIMING;HUANG SHAOJUN;LIU JIE;HUANG SUJUAN   

  • Published:1989-09-15

PDF

428

被引次数

10

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份的均方关系, 计算了高表面能固体的表面能色散成份(γs^d)及非色散成份(γs^p), 对此计算方法, Fowkes曾给予批评, 提出界面能的非色散成份主要来源于酸碱配位作用, 基于非色散成份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γs^d值的方法。

关键词: 计算方法, 表面能, 表面张力, 色散, 界面态, 接触角

A modified method for the determination of dispersion component of surface energy of solids (gad) is presented, in which the determination is based on measurement of the contact angle of interfacial (system) consisting of alkanes (H), water (W), and solids (S) including H-W-S and S-H-W systems. The results show the gsd determine from the glass-H-W system is larger than that from the H-W-glass system. The value for steel (104.7 mJ/m2) is close to the reported value determine by the gas adsorption method. After treatment with alcohol 0.5% NaOH solution, the gsd values of both steel and stainless steel increase remarkably.

Key words: COMPUTATIONAL METHOD, SURFACE ENERGY, SURFACE TENSION, DISPERSION, INTERFACE STATE, CONTACT ANGLE

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