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动态法测定杨木木素的玻璃化转变(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1988年02期
Page:
81-85
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
WITH THE DYNAMIC METHOD TO EXAMINE THE GLASS’ S TRANSITION OF POPULUS LIGNIN
Article ID:
1000-2006(1988)02-0081-05
Author(s):
Wang Yage & Cheng Peng
Faculty of Basic Courses
Keywords:
The method of torsison pendulum Poplar Lignin Glass’s transitionHeat softness
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1988.02.011
Document Code:
A
Abstract:
By using the method of torsion pendulum, this paper has examined the Q-1~T curve of Populus deltoides Bartr. cv. "Lux" (ex, 1-69/55) from the rang of 100~300℃, and observed the internal friction peak of glass’s transition of natural lignin. Also this paper has measured the transition temperature (near 0.5 Hz) Ts (or Tg) 215℃. In addition, a method testing the molecular weight of lignin in nature has been presented.

References

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Last Update: 1900-01-01