玄武岩纤维的分散及其对纸基材料性能的影响.

As a type of high performance inorganic fiber, basalt fiber exhibits excellent strength properties? high/low temperature resistance and chemical stability，which can be widely used in the field of construction and building materials, heat insulation and filtration. However,the poor dispersibility and paper strength of paper made of basalt fiber limit its ap­plication in paper industry. In this work，iltrafine basalt fiber was employed as material to in­vestigate the effect of pH of fiber suspension on fiber dispersion. In addition,the influence of the ratio of basalt fiber and unbleached electric insulation pulp on paper properties was also investigated. Results showed that the optimal fiber dispersion can be obtained when fiber suspension pH was 4. 38. And paper physical testing showed that the apparent density, tensile index and breakdown strength of basalt fiber/cellulosic fiber composite paper decreased with increasing basaltfibercontent.Whenbasaltfibercontentwaslower than 50 % ,the tensile strength of paper can satisfy the requirement of manufacturing. Therefore, the addition a­mount of basalt fiber depends on the requirement of paper properties and its application. [ABSTRACT FROM AUTHOR]