中国造纸2017，Vol.36Issue(12)：14-20,7.DOI:10.11980/j.issn.0254-508X.2017.12.003
机械木浆纤维形变性表征及其对纤维间结合性能的影响
The Characterization of Deformation Behavior of Mechanical Lignocellulosic Fibers and Its Effect on Interfiber Bonding Properties
摘要
Abstract
In this study,the pine TMP was delignified with sodium chlorite under acidic conditions,to obtain pulp fibers with different lignin contents.The deformation properties of these fibers were characterized by different methods,including flexibility of fiber(F),aspect ratio of fiber cross section(AR) and deformation index of fiber(CI).Finally,the effects of fiber deformation behavior on the interfiber bonding properties and physical strength of handsheets were discussed in details.The results showed that the F,AR and CI could characterize the fiber deformation,when the lignin content decreased from 24.28％ to 2.67％,the change of relative deformation characterized by F was 956.5％,which was several times greater than that characterized by the others,therefore,F was the most comprehensive characterization index among them;the increase of F from 0.516 x 1012 N-1 · m-2 to 5.454 × 1012 N-1 · m-2 contributed to the increase of the relative bonding area (RBA) and shear bond strength (b) of the fibers,which led to the linear increase of the Page bonding strength index from 3.60 N· m/ g to 84.07 N· m/g.During the paper sheet forming process,the contradiction relationship between physical strength and bulk properties of the paper sheets could be alleviated by adjusting the deformation properties of fiber materials.关键词
木浆纤维/形变性/结合性能/柔软性Key words
lignocellulosic fiber/deformation property/bonding property/flexibility分类
轻工纺织引用本文复制引用
王欣,李志强,张红杰,钱学君,程洪顺,张凤山,李晓亮..机械木浆纤维形变性表征及其对纤维间结合性能的影响[J].中国造纸,2017,36(12):14-20,7.基金项目
国家自然科学基金面上项目(31670588) （31670588）
中国博士后科学基金项目(2016M600516). （2016M600516）
