用动态过滤法研究填料在纤维上的吸附特性

采用动态过滤分析技术测定高岭土填料在纤维上的吸附特性,并研究了细小纤维含量、浆料温度、剪切力、助留剂、混合时间和浆料pH对高岭土在纤维上吸附的影响。结果表明:动态过滤分析法可以正确地评价填料在纤维上的吸附特性;吸附是填料助留的重要机理之一;纤维的比表面积对填料在纤维上的吸附率有很大的影响;助留剂的使用及其添加顺序明显影响填料的吸附率。此外,温度和搅拌速度对填料在纤维上的吸附也有一定影响。

Absorption characteristics of filler on fibers by dynamic drainage method

A new dynamic drainage method was established to study the absorption characteristics of clay on fibers.Effects of the fine content,shearing,mixing time,retention aids,furnish temperature and pH on the clay dynamic drainage absorption ability on the fiber were investigated.The results showed that the new dynamic drainage analysis method could evaluate the filler absorption ability on the fiber well.The absorption was one of the most important mechanisms on filler retention.The specific surface area of the fiber had great effect on the filler absorption rate on the fiber.The retention additives usage and their adding order had obvious effect on it,as well in addition,the temperature and stirring speed were closely related to the absorption.