西南林业大学学报Issue(1)：75-81,7.DOI:10.11929/j.issn.2095-1914.2015.01.015
竹柳枝桠材重组木的研制
Research on the Properties of Salix discolor Branch of Its Scrimber
摘要
Abstract
The test chose Salix discolor as material to study the influence of Salix discolors branch pH,density, air shrinkage,surface contact angle and density,sizing use on scrimber physical and mechanical properties.The results showed that pH of Salix discolor branch was in the range of 6. 43-6. 46,being weak acidity.pH buffering capacity was 34. 63 -38. 94 mL.Oven-dry shrinkage of Salix discolor branch material was 1. 86,and air-dried shrinkage was 1. 91.The measurement result of surface tension tester showed that the MUF contact angle of outer surface was 54.52,and the inner surface was 37. 27.The results also show that,when the density was 0. 90 g/cm3, glue consumption wa 14%,hot-pressing temperature 160℃,hot-pressing time 20 min and the moisture content was 6%,elasticity modulus of Salix discolor scrimber was 12948.68 MPa,up to standard of GB/T 4897. 7—2003.Be-sides,the static bending intensity was 105. 08 MPa,the internal bonding strength was 2. 07 MPa and the thickness swelling rate after 2 h water soaking was 3. 49%,which up to industry standard of LY/T 1984—2011.SEMimage showed that the syrinx of scrimber was compressed into ovalization by MUF press,but cytoderm kept a integrity.In-frared spectroscopy test showed that both Salix discolor cellulose and hemicellulose reacted with adhesive,and there were chemical bonds.关键词
竹柳/枝桠材/重组木/密度/施胶量/物理力学性能Key words
Salix discolor/discolor branch/scrimber/density/glue consumption/physical and mechanical properties分类
农业科技引用本文复制引用
陈明及,吴金绒,邓玉和,侯天宇,王新洲,陈骁轶,张健..竹柳枝桠材重组木的研制[J].西南林业大学学报,2015,(1):75-81,7.基金项目
江苏高校优势学科建设工程资助项目的资助；2012年国家级大学生创新创业训练计划立项项目（201310608457）资助。 （）
