DIMENSIONAL STABILIZATION OF WOOD BY CHEMICAL MODIFICATION USING ISOPROPENYL ACETATE

被引：22
|
作者：
Giridhar, B. N. [1 ]
Pandey, K. K. [1 ]
Prasad, B. E. [1 ]
Bisht, S. S. [1 ]
Vagdevi, H. M. [2 ]
机构：
[1] Inst Wood Sci & Technol, 18th Cross Malleswaram, Bengaluru, India
[2] Kuvempu Univ, Dept Chem, Sahyadri Sci Coll, Shimoga, India
来源：
MADERAS-CIENCIA Y TECNOLOGIA | 2017年 / 19卷 / 01期
关键词：
Chemical modification; dimensional stability; iodine; isopropenyl acetate; rubberwood;
D O I：
10.4067/S0718-221X2017005000002
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：
Chemical modification of wood with isopropenyl acetate (IPA) using iodine (I-2) as catalyst has been carried out. Rubber wood (Hevea brasiliensis) specimens were reacted with IPA using iodine (I-2) catalyst at 95 degrees C up to 10 h under solvent free conditions. The effect of catalyst concentration and reaction time was studied. The extent of acetylation was measured by determining weight percent gain and the modified wood was characterized by FTIR-ATR and C-13 NMR spectroscopy. It was found that IPA in the presence of iodine is an excellent acylating reagent for wood. Modified wood exhibited high dimensional stability.
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页码：15 / 20
页数：6
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