秸秆处理方式对玉米秸秆无胶人造板性能的影响  

Effect of straw treatment methods on the performance of corn straw adhesive free artificial board

作　　者：肖力光[1] 张旭[1] 彭诗淇 XIAO Li-guang;ZHANG Xu;PENG Shi-qi(School of materials science and engineering,Jilin Jianzhu university,Changchun 130118,China;Jilin agnicultural inrestment group Co.,Ltd.,Changchun 130017,China)

机构地区：[1]吉林建筑大学材料科学与工程学院,长春130118 [2]吉林省农业投资集团有限公司,长春130017

出　　处：《吉林建筑大学学报》2023年第6期23-27,共5页Journal of Jilin Jianzhu University

基　　金：“十三五”国家重点研发计划项目(2016YFC0701002)。

摘　　要：使用NaOH溶液、FeCl3溶液和NaNO3溶液对玉米秸秆进行预处理,在180℃,6 MPa,10 min的热压工艺下,制备无胶玉米秸秆人造板,对玉米秸秆的表面微观形貌、硅元素分布、纤维素结晶度进行表征,并使用万能材料试验机测试纤维状秸秆板和粉末状秸秆板的物理性能.结果表明:预处理后玉米秸秆表面变得粗糙不平,Si元素质量分数大幅下降,纤维素结晶度明显增加,NaOH处理改善效果最佳,去除杂质最多;3种预处理方法均能够提升秸秆板的物理性能,经NaOH处理后的秸秆板的物理性能改善效果最明显;粉末状秸秆板比纤维状秸秆板物理性能更好.The corn straw was pretreated with NaOH solution,FeCl 3 solution and NaNO 3 solution.Under the hot pressing process of 180℃,6 MPa and 10 min,the non adhesive corn straw engineered wood was prepared.The results showed that after pretreatment,the surface of corn straw became rough and uneven,the mass fraction of Si element significantly decreased,and the crystallinity of cellulose significantly increased.NaOH treatment had the best improvement effect and removed the most impurities;All three pre-treatment methods can improve the physical properties of straw boards,and the physical properties of straw boards treated with NaOH have the most significant improvement effect;Powder straw board has better physical properties than fiber straw board.

关 键 词：玉米秸秆 无胶秸秆人造板 预处理 物理性能 

分 类 号：TQ437.1[化学工程]