Abstract: With wheat straw, wood and environmentally friendly and flame retardant inorganic adhesive as major raw mate-rials, inorganic particleboard with a uniform mixture of wheat straw and wood was manufactured by hot-pressing technology.The effect of wheat straw-wood ratio, adhesive consumption, hot-pressing time and hot-pressing temperature on physical and mechanical properties of the board was studied, and influencing mechanism of them on the board′s properties was analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Results showed that modulus of rupture (MOR), modulus of elasticity (MOE) and internal bond strength (IB) of the board gradually increased while thickness swelling (TS) of that gradually decreased with declining wheat straw-wood ratio; optimal ratio was 4∶6. With increase of adhesive consumption, MOR and MOE firstly increased and then decreased, meanwhile, IB increased gradually and TS decreased gradually; MOR and MOE reached the maximum as 15.5 MPa and 3 110 MPa respectively when adhesive consumption was 63%, IB and TS was 0.47 MPa and 5.5% at this point. MOR, MOE and IB gradually increased while TS gradually decreased with increase of hot-pressing temperature and hot-pressing time; MOR, MOE and IB reached the maximum as 16.8 MPa, 3 350 MPa and 0.56 MPa, while the TS reached the minimum as 3.5% with hot-pressing temperature of 100 ℃ and hot-pressing time of 30 min. Optimal process was as follows: wheat straw-wood ratio of 4∶6, adhesive consumption of 63%, hot-pressing time of 30 min and hot-pressing temperature of 100 ℃.
1 Feng Wei, Zhang Liqun, Pang Zhongwei, et al. The economic and environmental analysis of crop residues burningand reutilization in China[J]. Chin Agricultural Sci Bull,2011,27(6):350(in Chinese). 冯伟,张利群,庞中伟,等.中国秸秆废弃焚烧与资源化利用的经济与环境分析[J].中国农学通报,2011,27(6):350. 2 Yu Wenji. Future development of bio-based composites from agricultural fibers in China[J].China Wood Ind,2006,20(2):41(in Chinese). 于文吉. 生物质资源农作物秸秆应用于人造板工业的可行性分析[J]. 木材工业,2006,20(2):41. 3 Müller C, Schwarz U, Thole V. On the utilization of agricultural residues in the wood-based panel industry [J]. Eur J Wood Wood Products,2012,70(5):587. 4 Nazerian M, Sadeghiipanah V. Cement-bonded particleboard with a mixture of wheat straw and poplar wood[J]. J Forestry Res,2013,24(2):381. 5 Yang Jianming. Study on processing technology of retardant straw plywood[D]. Changsha: Central South University of Forestry and Technology,2014(in Chinese). 杨建铭.阻燃秸秆人造板制造工艺研究[D].长沙:中南林业科技大学,2014. 6 Wu Yiqiang,Li Xingong,Zuo Yingfeng, et al. Research status on the utilization of forest and agricultural biomass in inorganic wood-based panel[J].J Forestry Eng,2016,1(1):8(in Chinese). 吴义强,李新功,左迎峰,等.农林剩余物无机人造板研究进展[J].林业工程学报,2016,1(1):8. 7 Xu Changwei, Wang Jianheng, Tian Yingliang, et al. Application of agricultural residues in inorganic building materials[J]. Agricultural Eng,2015,5(6):40(in Chinese). 徐长伟,王建恒,田英良,等. 农业剩余物在无机建筑材料中的应用[J]. 农业工程,2015,5(6):40. 8 Wang Xin, Zhou Dingguo. Influence of the chemical composition of agricultural straw on production process of straw-based panel[J]. China Forest Products Ind,2009,36(5):26(in Chinese). 王欣,周定国.农作物秸秆化学成分对人造板生产工艺的影响[J].林产工业,2009,36(5):26. 9 Zhang Xiyan. Straw characteristics and its influence on the perfor-mance of OSSB[D]. Xi’an: Northwest Agriculture Forestry University,2013(in Chinese). 张喜燕.麦秸原料的特性及其对定向结构麦秸板性能的影响[D].西安:西北农林科技大学,2013. 10 Cheng W L, Han G P, Fang D. Oriented structural boards from split wheat straw: Effects of straw length, panel density, and resin content[J]. BioResources,2013,8(3):4497. 11 Han Jingquan. Study on cement-bonded wheat straw composites[D]. Harbin:Northeast Forestry University,2009(in Chinese). 韩景泉.水泥基麦秸碎料复合材的研究[D].哈尔滨:东北林业大学,2009. 12 Yao Fei. Research on manufactory technique of rice-straw/wood-fiber composites[D]. Nanjing: Nanjing Forestry University,2004(in Chinese). 姚飞.稻草-木纤维复合材料制造工艺研究[D].南京:南京林业大学,2004. 13 Chen Mao, Li Xingong, Pan Yage, et al. Preparation and properties of inorganic poplar particleboard [J]. Acta Mater Compos Sin,2016,33(4):939(in Chinese). 陈茂,李新功,潘亚鸽,等.无机杨木刨花板制备及性能[J].复合材料学报,2016,33(4):939. 14 Li Ying, Yu hongfa, Dong Jinmei, et al. Reseach development on hydration product, phase transformation and water resistance eva-luation method of magnesium oxychloride cement[J]. J Chin Ceram Soc,2013,41(11):1465(in Chinese). 李颖,余红发,董金美,等.氯氧镁水泥的水化产物、相转变规律和抗水性评价方法的研究进展[J].硅酸盐学报,2013,41(11):1465. 15 Qin Linqing, Zhang Lianmeng, Huang Zhixiong. Analysis of activity and hydration product of magnesium oxide by X-ray diffractometry[J]. Analytical Instrumentation,2011,5(4):49(in Chinese). 秦麟卿,张联盟,黄志雄.X射线衍射法测定氧化镁的活性及其水化产物[J].分析仪器,2011,5(4):49. 16 Runcevski T, Dinnebier R E, Freyer D. Dehydration of the sorel cement phase 3Mg(OH)2·MgCl2·8H2O studied by in situ synchrotron X-ray powder diffraction and thermal analyses[J]. Zeitschrift Fur Anorganische Und Allgemeine Chemie,2014,640(1):100. 17 Fu Bin, Li Xingong, Pan Yage, et al. The preparation and properties of inorganic wheat straw particleboard [J]. J Funct Mater,2015,46(1):0112(in Chinese). 符彬,李新功,潘亚鸽,等.无机麦秸碎料板制备及性能[J].功能材料,2015,46(1):0112. 18 Qiao J Z, Wang A J, Li X G. Preparation and performance of wheat-straw composite board with inorganic adhesive[J]. BioResources,2016,11(1):819.
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2017, Vol. 31 
