微纤化纤维素纤维形态的几种测量方法  

Several Methods of Measurement of Microfibrillated Cellulose

作　　者：李国栋[1,2,3] 葛成雷 牛司鹏 梁轲轲 

机构地区：[1]齐鲁工业大学制浆造纸科学与技术教育部重点实验室,山东济南250353 [2]英属哥伦比亚大学制浆造纸中心,加拿大温哥华V6TIZ4 [3]浙江省废弃生物质循环利用与生态处理技术重点实验室,浙江杭州310023 [4]山东工业技师学院,山东潍坊261053

出　　处：《纸和造纸》2016年第9期5-9,共5页Paper and Paper Making

基　　金：国家级大学生创新创业训练计划项目(201410431023);“浙江省废弃生物质循环利用与生态处理技术重点实验室”开放基金(2016REWB17);齐鲁工业大学制浆造纸科学与技术教育部重点实验室主任基金

摘　　要：首先采用机械磨浆法制备了一系列不同尺寸的微纤化纤维素(MFC),然后通过不同的测试手段(包括Pulpeye纤维分析仪、FQA纸浆质量分析仪和沉淀法)对其纤维形态进行了测定,并对所得结果进行了对比分析。结果表明:随着磨浆比能耗的增加,MFC的长度、宽度和长宽比明显减小,细小纤维含量明显增加,卷曲指数(率)变化不大;Pulpeye与FQA测得的结果较为接近,前者的测量精度相对更高;沉淀法成本较低、操作简便,其测得的MFC长宽比相对两种仪器所测得的值较高,但与两者之间均存在一定的相关性。MicrofibriHated cellulose （MFC） with different dimensions were prepared by mechanical refining and characterized with Pulpeye, Fiber Quality Analyzer （FQ_A） and Sedimentation, respectively. With the increasing of specific energy consumption, the length, width and aspect ratio of MFC is reduced significantly, while the content of fines is increased, and the curl index （rate） almost has no change at all. The result of Pulpeye is similar with that of FQ_A, and the measurement accuracy of the former is relatively higher. Sedimentation is a low-cost and easy-to-use method to measure the aspect ratio of MFC, although the obtained aspect ratio is higher than that of the instruments, there is a linear relationship between the sedimentation and the instruments.

关 键 词：微纤化纤维素 Pulpeye FQA 沉淀法 长宽比 

分 类 号：TS71[轻工技术与工程—制浆造纸工程]