摘要： 纤维板因化学胶黏剂的使用，对环境造成了严重的污染。同时，因纤维板需求量的持续增加，给森林资源也带来了巨大的压力。因此，研究绿色无污染的纤维板成为当下的研究热点。本文主要围绕杂色云芝预处理高粱秸秆对无胶纤维板强度的影响，探讨其可行性，并对预处理过程中代谢产物进行分析，以期为绿色纤维板的研究提供理论依据。本实验选取高粱秸秆，添加杂色云芝分别进不同天数的静止培养并热压成板。结果表明该预处理使无胶纤维板的弯曲强度由对照组的5。83MPa提高至10。63MPa，证实了该方法具有可行性。并且，通过对不同发酵天数的样品进行成分分析，发现多糖含量、纤维素酶、MnP、Lip、Lac呈现一定的变化趋势，推测预处理过程中代谢产物与无胶纤维板的胶黏有关联性。最后，经过红外分析，证实该预处理过程中秸秆的结构发生了一定程度的变化。本文的研究结果显示杂色云芝预处理具有发展潜力，为进一步研究无胶纤维板的制作工艺提供了理论依据。94762
毕业论文关键词：白腐菌，高粱秸秆，预处理，纤维板，弯曲强度
Abstract:Due to the use of chemical adhesives, fiber board leads to the serious environmental pollution。 Meanwhile, the need for fiber board growth has been increasing forest resources pressures for a long time。 Therefore the research on green pollution-free fiber board has become the research hot spot。 This paper is mainly to explore the effect of bio-pretreatment by white-rot fungus to the fiber board which has no chemical adhesives, in order to provide theoretical basis for the study of green pollution-free fiber board。 We add white-rot fungus to the sorghum straw which is selected and keep the solid - liquid ratio at 1:1。25。The static culture of sorghum straw in a condition of 28℃ and a nature pH range last for 0d,7d,14d,21d,28d,35d。 Then we hot press it as fiber board in a temperature of 170℃。Result shows that the bending strength of the board is strengthen——raised from 5。83MPa to 10。63MPa and prove the feasibility of this method。 Because of this, we do the further analysis to the sample which is bio-pretreated for different period so that we can figure out the relationship of the content of different composition with the bending strength of fiber board。 This paper shows that the bio-pretreatment which uses the white-rot fungus has a developing potential and provide theoretical basis for the further study of the process of non-chemical adhesives fiber board。
Keywords: White-rot Fungus, Sorghum straw, Bio-pretreatment, Fiber board, Bending strength
目录
1 前言 4
1。1纤维板生产工艺 4
1。2发展非木材无胶纤维板的可行性分析 5
1。2。1 秸秆储量及利用现状 5
1。2。2木材成分与农作物秸秆成分对比分析 6
1。2。3无胶制板原理 6
1。3无胶纤维板优势及存在的问题 6
1。4杂色云芝简介 7
1。5研究思路 7
2材料与方法 8
2。1材料与仪器 8
2。1。1 原料 8
2。1。2菌株 8
2。1。3 试剂 8
2。1。4 溶液与培养基 8
2。1。5 仪器设备 杂色云芝预处理高粱秸秆制备无胶纤维板初步研究:http://www.youerw.com/shengwu/lunwen_202875.html