摘要
原纤化超细纤维的应用潜力巨大,对其特性进行准确表征具有重要意义。本文采用筛分的方式将一种原纤化超细纤维分为5个不同级别的超细纤维,对其纤维长度、打浆度、比表面积以及扫描电镜照片进行了分析,同时探讨上述几种表征方法对于原纤化超细纤维的适用性。结果表明,长度和比表面积测试结果符合随着筛网目数的增加,纤维长度逐渐降低,比表面积逐渐升高的规律。而由于越细小的纤维越容易穿过打浆度仪的筛网,因此打浆度的测试不适合表征原纤化程度较高的原纤化超细纤维。本文建议综合纤维长度、比表面积和电镜照片观察结果对原纤化超细纤维进行表征。
The application of fibrillated uhrafine fiber has great potential. So it is significant to study its character accurately. In this paper, a kind of fibrillated ultrafine fiber was classified into five different fractions. The fiber length, beating degree, specific surface area and SEM photos of different fractions were analyzed. The applicability of above characterization was discussed at the same time. The results indicated that the test results of fiber length and specific surface area conform to the law of the gradually decreasing fiber length and the gradually increasing surface area along with the increase of screen mesh. The beating degree test is not suitable for fibrillated uhrafine fiber with high degree of fibyillation since the tinier the fiber is easier to pass the screen of the beating degree instrument. Finally, the viewpoint that the fiber length, specific surface area and SEM photos should be comprehensive to characterize fibrillated uhrafine fiber is suggested.
出处
《造纸科学与技术》
北大核心
2011年第6期113-117,共5页
Paper Science & Technology
基金
科技部科技人员服务企业行动项目(2009GJE00D50)
关键词
原纤化超细纤维
表征
比表面积
长度
电镜照片
fibrillated ultrafine fiber
characterization methods
fiber length
specific surface area
SEM photos
