Mattson S M
Glass Research and Analytical Services, Owens-Corning Fiberglas, Granville, Ohio.
Environ Health Perspect. 1994 Oct;102 Suppl 5(Suppl 5):87-90. doi: 10.1289/ehp.94102s587.
The dissolution of a range of glass fibers including commercial glass and mineral wools has been studied using a modification of Gamble's solution in a flow system at pH 7.4 and 37 degrees C. Dissolution has been followed by weight loss, effluent analysis, and morphology change of fibers and bulk glass. Flow per glass surface area can strongly affect both dissolution rate and morphology due to the effect of the dissolution process on the fluid. Effluent pH is shown to be a guide for choice of optimum flow/area conditions. These conditions provide measurable concentrations of dissolved glass in the effluent while maintaining their concentrations below the point at which they significantly affect the dissolution process. SiO2 and Al2O3 vary widely in the extent to which they are involved in the leaching process, which removes alkalis, alkaline earths, and B2O3. This makes analysis of a single component in the effluent unsuitable as a means of comparing the dissolution rates of a wide range of compositions.
利用在pH值为7.4、温度为37摄氏度的流动体系中对甘布尔溶液进行改进后的方法，研究了包括商用玻璃和矿棉在内的一系列玻璃纤维的溶解情况。通过重量损失、流出物分析以及纤维和块状玻璃的形态变化来跟踪溶解过程。由于溶解过程对流体的影响，每单位玻璃表面积的流量会强烈影响溶解速率和形态。结果表明，流出物的pH值可作为选择最佳流量/面积条件的指导。这些条件能在流出物中提供可测量的溶解玻璃浓度，同时将其浓度保持在不会显著影响溶解过程的水平以下。在参与去除碱、碱土金属和B2O3的浸出过程中，SiO2和Al2O3的参与程度差异很大。这使得分析流出物中的单一成分不适用于比较多种成分的溶解速率。
