Chinese Journal of Applied Chemistry ›› 2016, Vol. 33 ›› Issue (4): 430-435.DOI: 10.11944/j.issn.1000-0518.2016.04.150278

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Effect of Pretreatment Methods of Rice Straw on Straw Board Properties

JIN Xuanab,LI Yingab,LI Xina,YU Zhikea,ZHANG Tianyua,DING Zhongyangb,SHI Ganga*()   

  1. aSchool of Chemical and Material Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China
    bNational Engineering Laboratory for Cereal Fermentation Technology,Jiangnan University,Wuxi,Jiangsu 214122,China
  • Received:2015-08-06 Accepted:2015-12-09 Online:2016-04-01 Published:2016-04-01
  • Contact: SHI Gang
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21401079), Jiangsu Province Science Foundation for Youths(No.BK20140158), Research Fund for the Doctoral Program of Higher Education(No.20130093120003)

Abstract:

The renewable lignocellulosic sources for biocomposites have received much attention in recent years because of the shortage of forest resources. The surface of rice straw was pretreated through humid-heat and chemical modification by coupling reagent which could improve the adhesion capacity between urea formaldehyde resin and rice straw. Meanwhile, the process of fabricating straw board was explored in this paper. The experimental data shows that the straw boards with perfect properties are prepared under the temperature of 150 ℃, the pressure of 15 MPa, the hot pressing time of 8 min, the mass ratio of resin powder to water of 1:1, and the urea formaldehyde resin adhesive content of 15%(mass fraction). The straw boards prepared by 3-glycidyloxypropyltrimethoxysilane(KH560) as surface modification reagent show better properties than those by KH550 and untreated rice straw.

Key words: straw, surface modification, urea formaldehyde resin, coupling agent