摘要
为了解析芳纶纤维/浆粕形态与纸张结构和性能之间的相关性,采用光学显微镜、扫描电镜和原子力显微镜对间位芳纶纤维和浆粕的基本形态进行了表征;通过筛分芳纶浆粕,研究了纤维尺寸的分布;利用纤维质量分析仪,测试了纤维的平均长度、卷曲和纽结指数;分析了对芳纶纤维/浆粕的造纸性能,以及浆粕在纸张中添加的比例对纸张性能的影响.结果表明:芳纶短切纤维呈实心、近圆柱状;表面微纤维规则排列,与纤维轴向平行;浆粕形态细小,在水中分散性好,呈薄膜状,细小纤维组分含量为28.59%;单比例抄造纸张应选择芳纶浆粕∶芳纶纤维为1.5∶1,混合比例分层抄造的纸张,建议采用1.5∶1(1/3)+1∶1(2/3)的比例抄造.
In order to reveal the relationship between the morphology of aramid fibre and pulp and the sheet structures and properties,the morphologies of aramid fibre and fibrids（pulp） were characterized using light microscopy（LM）,scanning electrical microscopy（SEM）,and atomic force microscopy（AFM）;the fibre distribution was analyzed by fibre screening technique;and the fibre length,curl and kink index were analyzed by fibre quality analyzer（FQA）.The properties of aramid fibre and pulp for sheet making and the effect of pulp weight proportions in sheet composition were investigated.The results showed that the aramid fibre presented in a solid,nearly cylinder shape,and the fibrills spread regularly on the fibre surface,parallel with the fibre axis.The aramid pulp was in a small,ribbon-like shape,and evenly dispersed in water.The fibril content in the pulps was 28.59%.The optimal furnish ratio of pulp to fibre was 1.5∶1,and a laminating sheet making procedure with various furnish ratios of pulp to fibre at 1.5∶1（1/3） for the top and bottom layers and at 1∶1（2/3） for the medium layer was suggested to be more beneficial to the sheet structure and properties.
出处
《西南交通大学学报》
EI
CSCD
北大核心
2010年第5期805-810,共6页
Journal of Southwest Jiaotong University
基金
国家自然科学基金资助项目(50873057)
教育部博士点基金资助项目(200807080006)
天津市制浆造纸重点实验室开放基金资助(200918)
关键词
芳纶浆粕
纤维
形态
芳纶纸
结构与性能
aramid pulp
fibre
morphology
aramid sheet
structure and properties
