Effect of oxalic acid and steam pretreatment on the primary properties of UF-bonded rice straw particleboards

被引：69

作者：

Li, Xianjun ^{[1
,2
]}

Cai, Zhiyong ^{[1
]}

Winandy, Jerrold E. ^{[3
]}

Basta, Altaf H. ^{[4
]}

机构：

[1] USDA Forest Serv, Forest Prod Lab, Madison, WI 53726 USA

[2] Cent S Univ Forestry & Technol, Mat Sci & Engn Sch, Changsha 410004, Hunan, Peoples R China

[3] Univ Minnesota, St Paul, MN 55108 USA

[4] Natl Res Ctr, Cellulose & Paper Dept, Cairo 12622, Egypt

来源：

INDUSTRIAL CROPS AND PRODUCTS | 2011年 / 33卷 / 03期

关键词：

Rice straw; Pretreatment; Particleboards; Primary performance; Carbohydrates; WHEAT-STRAW; DENSITY; WOOD; PERFORMANCE; CONSTRUCTION; COMPOSITE; REED; PULP;

D O I：

10.1016/j.indcrop.2011.01.004

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The objective is to evaluate the effect of oxalic acid (OA) and steam-pretreatment on the primary performance of rice straw particleboards. In addition, the effect of various treatment conditions on carbohydrates released from rice straw particles was investigated. The results show that steam- and short durations of OA-treatment significantly improved the mechanical properties and dimensional stability of rice straw particleboards. However, steam-treated rice straw (without OA-treatment) panels exhibited even better performance when compared with OA-treated panels. OA-pretreatment time has a negative effect on performance of panels, whereas the effect of temperature on the performance of OA-treated panels was not significant, except for the linear expansion. OA-treatment accelerated carbohydrates extraction. The sugars released from the OA-treated rice straw particles increase with increasing treatment temperature and time. Carbohydrates extracted from rice straw particles could be a potential sustainable resource for biofuel or bio-based chemicals. (C) 2011 Published by Elsevier B.V.

引用

页码：665 / 669

页数：5

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