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林产化学与工业

林产化学与工业 ›› 2004, Vol. 24 ›› Issue (S1): 77-79.

• 研究报告 • 上一篇    下一篇

挪威云杉树脂的临界表面张力和临界Hamaker常数

沈青   

  1. 东华大学 材料科学与工程学院中心实验室;纤维材料国家重点实验室, 上海 200051
  • 收稿日期:2003-07-09 修回日期:1900-01-01 出版日期:2004-10-20 发布日期:2004-10-20

SURFACE PROPERTIES OF NORWAY SPRUCE RESIN

SHEN Qing   

  1. The Central Laboratory of Material Science & Engineering College, Donghua University; State Key Laboratory of Chemical Fiber and Polymer, Shanghai 200051, China
  • Received:2003-07-09 Revised:1900-01-01 Online:2004-10-20 Published:2004-10-20

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摘要： 应用一系列烷烃类液体和接触角技术,对挪威云杉(Picea abies L.Karst.)树脂的一些表面特征作了研究。发现该树脂的临界表面张力约为18.48mN/m,根据Zisman的临界表面张力外推方法将液体的Hamaker常数与cosθ作图,发现该树脂有一个唯一的临界Hamaker常数约4.18×10-20J。

关键词: 挪威云杉树脂, 临界表面张力, 临界Hamaker常数

Abstract: Using the contact angle technique and a series of alkanes as probe liquids to wet the surface of Norway spruce resin (Picea abies L. Karst.), the critical surface tension of this resin was measured to be about 18.48 mN/m. Using Hamaker’s extrapolation method for critical surface tension, a good linear relationship was found by plotting Hamaker constant of the liquid with cos θ. This method was thus developed to obtain the unique critical Hamaker constant for this resin to be about 4.18×10-20 J.

Key words: Picea abies L. karst. resin, critical surface tension, critical Hamaker constant

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