大豆与木片共磨制备无胶纤维板的工艺研究  

Process of Preparing Glueless Fiberboard by Co-milling of Soybean and Wood Chips

作　　者：王凯文 杨蕊 叶芃 贾翀 张洋 WANG Kai-wen;YANG Rui;YE Peng;JIA Chong;ZHANG Yang(College of Materials Science and Engineering,Nanjing Forestry University,Nanjing 210037,China)

机构地区：[1]南京林业大学材料科学与工程学院,南京210037

出　　处：《包装工程》2019年第7期81-87,共7页Packaging Engineering

基　　金：南京林业大学青年教师创新基金(CX2016019);苏北专项(SZ-SQ2018017)

摘　　要：目的为了解决纤维板中游离甲醛释放的问题,基于大豆与木片共磨技术开展无胶纤维板研究。方法利用一定比例大豆和木片原料共磨并制备无胶纤维板,通过对板坯密度、板坯含水率、预处理时间、热压时间、热压温度等几个变量的研究,分析其对无胶纤维板力学性能的影响。结果在单因素试验范围内,随着密度和板坯含水率的增加,板材物理力学性能均有所提升。方差分析表明,热压温度对板材物理力学性能的影响最大,在最优条件下压制出来的板材静曲强度为10.12MPa、弹性模量为1653.94 MPa、吸水厚度膨胀率为19.7%、内结合强度为0.476 MPa。结论当板材密度为0.8 g/cm3,预处理时间为3 d,热压时间为30 min,热压温度为180℃时,压制出的无胶纤维板综合性能最佳。The paper aims to research glueless fiberboard based on the co-milling technology of soybean and wood chips to solve the problem of free formaldehyde release in fiberboard.A certain proportion of soybean and wood chips were used to co-mill and prepare glueless fiberboard.The effects of slab density,slab moisture content,pretreatment time,hot pressing time and hot pressing temperature on the physical and mechanical properties of the glueless fiberboard were analyzed.In the single factor test range,the physical and mechanical properties of the slab increased with the increase of the density and slab moisture content.The analysis of variance showed that the hot pressing temperature had the greatest influence on the physical and mechanical properties of the slab.Under the optimal conditions,the fiberboard had a modulus of rupture (MOR) of 10.12 MPa,an elastic modulus (MOE) of 1653.94 MPa,a water absorption thickness swelling (TS) ratio of 19.7% and an internal bonding (IB) strength of 0.476 MPa.When the density of the sheet is 0.8 g/cm^3,the pretreatment time is 3 d,the hot pressing time is 30 min,and the hot pressing temperature is 180 ℃,the pressed glueless fiberboard has the best comprehensive performance.

关 键 词：大豆 共磨技术 无胶 纤维板 

分 类 号：TS653.6[轻工技术与工程]