EFFECT OF THE SIZE OF SPINNERET ON THE THERMAL STABILITY OF CHEMICALLY LIQUEFIED WOOD

被引：0
|
作者：
Lin, Jian [1 ]
Shang, Jun-Bo [1 ]
Zhao, Guang-Jie [1 ]
机构：
[1] Beijing Forestry Univ, Coll Mat Sci & Technol, Lab Wood Sci, Beijing 100083, Peoples R China
来源：
WOOD RESEARCH | 2014年 / 59卷 / 05期
关键词：
Wood liquefaction; chemically cured fibers; length/diameter ratio; thermal stability; TGA/TMA; LIGNIN MODEL-COMPOUND; CARBON-FIBERS; LIQUEFACTION MECHANISM; ACID CATALYSIS; MERCURY POROSIMETRY; SOFTWOOD LIGNIN; PHENOL;
D O I：
暂无
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
Chemically cured fibers were prepared from liquefied wood in phenol by melt-spinning with different spinnerets of length/diameter ratio (L/D) (0, 2, and 4) and then chemical curing, to investigate the effect of the size of spinneret on the thermal stability of chemically cured fibers. High thermal transition temperatures and small weight loss percentages of resultant chemically cured fibers representing good thermal stability were obtained with the increase in L/D of spinneret. Besides, it was found that few defective structures with the total surface area of 5.3 m(2).g(-1) and total pore volume of 0.0013 mL.g(-1) occurred on cross section and surface of chemically cured fibers, which was prepared with spinneret of L/D = 4. These improvements were mainly attributed to the larger amounts of three-dimensional network structures formed during chemical curing process.
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收藏
页码：731 / 738
页数：8
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