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

Author: Li, Xianjun; Cai, Zhiyong; Winandy, Jerrold E.; Basta, Altaf H.; 

Date: 2011

Source: Industrial crops and products. Vol. 33, no. 3 (May 2011): p. 665-669.

Publication Series: Scientific Journal (JRNL)

Description: 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.

Keywords: Particle board, testing, rice residues, mechanical properties, biomass utilization, fiber utilization, crop residues, natural resources, fibrous composites, plant fibers, oxalic acid, carbohydrates, temperature, sugars, feasibility studies, urea-formaldehyde resins, extraction, agricultural wastes, rice straw, physical properties, biocomposites, renewable natural resources, pretreatment, steam pressure, dimensional stability, particleboards, primary performance

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Li, Xianjun; Cai, Zhiyong; Winandy, Jerrold E.; Basta, Altaf H. 2011. Effect of oxalic acid and steam pretreatment on the primary properties of UF-bonded rice straw particleboards. Industrial Crops and Products. 33(3): 665-669.

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