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林业科学 ›› 2004, Vol. 40 ›› Issue (6): 144-146.doi: 10.11707/j.1001-7488.20040625

• 论文及研究报告 • 上一篇    下一篇

API胶粘剂在落叶松、白桦和柞木木材弦径面渗透的显微研究

程瑞香 顾继友 崔永志   

  1. 东北林业大学材料科学与工程学院,哈尔滨150040
  • 收稿日期:2002-10-08 修回日期:1900-01-01 出版日期:2004-11-25 发布日期:2004-11-25

Study on Penetration of Aqueous Polymer Isocyanate Adhesive into Larch,Birch and Oak

Cheng Ruixiang,Gu Jiyou,Cui Yongzhi   

  1. Material Science and Engineering College, Northeast Forestry University Harbin150040
  • Received:2002-10-08 Revised:1900-01-01 Online:2004-11-25 Published:2004-11-25

摘要:

利用显微照片对水性高分子异氰酸酯(API)胶粘剂在落叶松、白桦和柞木木材中的渗透性进行研究。结果表明:API胶粘剂在3种木材弦径面的渗透未看出有很大差别,即使木射线发达的柞木,在弦切面的木射线中也几乎看不到有API胶粘剂的渗入,说明木材弦面上的木射线没有起到引导API胶粘剂渗入木材内部的作用,文中分析了原因。

关键词: 水性高分子异氰酸酯(API)胶粘剂, 径切面, 弦切面, 渗透, 显微照片

Abstract:

Penetration of aqueous polymer isocyanate (API) adhesive into Larch、 Birch and Oak with micrograph method was studied in this paper. The results showed that there was no difference in penetration between tangential direction and radial direction for each wood. In the tangential glued specimens, API adhesive penetrating into ray tissues was not observed even for Oak wood. That is to say, the ray tissues played no role in conducting liquid API adhesive into the three woods. Reasons for this phenomenon were analyzed also.

Key words: Aqueous polymer isocyanate(API) adhesives, Quarter-sawn board, Flat-sawn board, Penetration, Micrograph