稻草碎料板热压工艺研究  

Study on hot-pressing process of straw particle board

作　　者：严永林[1] 李新功[1] 刘晓荣[1] 

机构地区：[1]中南林业科技大学机电工程学院,湖南长沙410004

出　　处：《中南林业科技大学学报》2012年第1期126-129,共4页Journal of Central South University of Forestry & Technology

基　　金：国家"十二五"科技计划课题(2012BAD24B03);国家林业公益性行业科研重大专项(201204704);湖南省科技重大专项(2011FJ1006);湖南省科技厅科技计划项目(2010NK3034);中南林业科技大学木材科学与技术国家重点学科资助项目

摘　　要：采用异氰酸酯和脲醛树脂混合胶粘剂通过热压工艺制备了低成本稻草碎料板。研究了热压温度、热压时间、板材密度以及异氰酸酯胶黏剂用量对稻草碎料板力学性能的影响。研究表明,在一定范围内,随着热压温度、热压时间、板材密度以及异氰酸酯胶黏剂用量的增大,稻草碎料板物理学性能得到改善。合理的低成本稻草碎料板热压工艺是:热压时间为40 s/mm,MDI施加量为3%,密度为0.7 g/cm3,热压温度为180℃。The mixture of isocyanate and urea-formaldehyde adhesive resin was used to manufacture low-cost straw particle board by hot-pressing process. The influences of hot-pressing temperature, hot-pressing time, board density and the amount of isocyanate adhesive on the mechanical properties of straw particle board were studied. The results show that in certain extent, the straw particle board＇sphysics performance was improved with the increase of hot-pressing temperature, hot-pressing time, board density and the amount of isocyanate adhesive. The proper hot-pressing process of cost-straw particle board is： hot-pressing time for 40 s/mm, MDI applied amountof 3% density of O.7 g/cm^3 hot-pressing temperature of 180 ℃.

关 键 词：稻草碎料板 热压工艺 力学性能 

分 类 号：S784[农业科学—林学]