竹纤维造纸污泥制造mdf工艺研究 毕业论文

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1、毕业论文（设计）中国·合肥二〇一〇年六月-13-目录前言·········································································1．1木材供需现状与解决方案··················································1.2以竹代木的应用··························································1．3造纸行业的污泥························································

2、···二、造纸污泥制造MDF工艺研究···············································2.1研究目的······························································2．2实验材料与方法·························································2.2.1材料化学成分分析···········································2.2.2材料纤维形态分析·····························

3、··················2.2.3实验仪器与方法·················································2．3产品物理性能测试······················································2．4试-13-验结果······························································2.5结果讨论····························································三、参考文献·········

4、··························································四、英文摘要···································································五、致谢······································································竹纤维造纸污泥制造MDF工艺研究-13-摘要：以竹纤维造纸污泥为原料制造MDF，通过对污泥进行化学成分的分析以及相关的性能测试与分析，干燥与分离污泥，制定压板方案并测试其产品性能，分析密度

5、、温度、时间等因素对MDF力学性能的影响，从而最终得出最优的制造MDF的工艺条件。关键词：竹纤维造纸污泥、MDF、力学性能前言1.1木材供需现状与解决方案木材是“四大传统”材料（钢铁、水泥、塑料、木材）中唯一的天然可再生资源，具有其他不可再生材料无法比拟的优越性。据不完全统计，全世界年消耗木材约36亿立方米，按体积计算为各种材料之首。在不可再生资源日渐枯竭的情况下，木材的不可替代性日益显见。改革开放30年来，我国木材工业持续高速增长，已经成为世界木材及其制品生产和消费大国。特别是人造板工业，企业已达6000多家，统计数据表明，2000—2008年，我国人造板产量已从2001.66万立方米增至

6、9409.45万立方米。随着木材工业的发展，木材消耗量剧增。以前，我国每年木材缺口2亿立方米，预计今年将达到3亿立方米，木材原料的国际化依存度进一步加大。然而，我国森林覆盖率不足17%，仅为世界平均水平的61%；全国人均森林面积仅有0.128平方公里，为世界人均0.611平方公里的21.3%；人均森林蓄积量9.048立方米，只有世界人均72立方米的12.6%，森林资源禀赋的不足，加之近几十年来的过量采伐，可采资源几近枯竭。木材进出口贸易壁垒的进一步限制，造成在缓解木材供需矛盾方面急需解决方案。急需开展木材高效加工利用技术、非木质资源利用和废弃木材的循环再利用技术研发，以提高木材和非木质资源的

7、综合利用水平，保证有限的木材资源满足日益增长。木材人造板业的兴起与壮大业曾是解决我国木材供需矛盾的重要途径，寻找木材替代材料是解决木材危机的又一途径，目前用以替代木材的生物质材料主要是竹材、麦秸、稻草等农作物秸秆和沙生灌木以及其他无机或有机材料等。采用废弃木材、木材加工剩余物、麦秸和稻草非木质植物和工业废料等作为替代品生产木基复合材料是节约木材、保护环境的有效途径之一，是当今木制品行业的一个发展趋势。1.2以