Fe、Zn粉末强化木陶瓷的制备  

Preparation of Strengthened Woodceramics with Fe or Zn Powder

作　　者：李淑君[1] 陶毓博[1] 孟黎鹏[1] 刘一星[1] 李坚[1] 

机构地区：[1]生物质材料科学与技术教育部重点实验室(东北林业大学),哈尔滨150040

出　　处：《东北林业大学学报》2009年第2期35-37,共3页Journal of Northeast Forestry University

基　　金：霍英东教育基金项目(91027);国家自然科学基金项目(30500385);教育部"新世纪优秀人才支持计划"

摘　　要：以木纤维为原料,对其进行酚醛树脂浸渍处理,与强化材料Fe或Zn粉末复合,然后高温烧结,制造强化木陶瓷。强化材料的添加使产品保留率增加。添加木纤维质量18%的Fe金属粉末,产品的硬度由8.45MPa提高到了13.60MPa。采用Zn金属粉末时,产品的硬度提高到9.80MPa。耐磨性及电磁屏蔽性能均有明显提高,而抗拉强度、抗压强度提高不明显,甚至有些下降。采用不同金属粉末复合有不同的效果。微观结构分析表明,添加的Fe元素大部分以较大的颗粒状存在于样品中,未能均匀分布。Strengthened woodceramics were prepared with raw material of wood fiber, which was impregnated with phenol-formal-dehyde resin and mixed with Fe or Zn powder, and then sintered. Yield was improved due to the addition of metal materials. The hardness of the products increased from 8.45 MPa to 13.60 MPa as the Fe content was 18% of the wood fiber weight, and the hardness reached 9.80 MPa using Zn instead of Fe. Abradability and electromagnetic shielding properties of the products were clearly improved as well. Tensile strength and compressive strength were not always getting better. The strengthening effects of Fe powder and Zn powder were different. Microstructure analysis showed that most of Fe element in the products existed in the form of big particles and was not uniformly distributed.

关 键 词：木陶瓷 强化 FE ZN 

分 类 号：TB332[一般工业技术—材料科学与工程]