Effects of alternative natural silicates on the kinetics of batch-to-melt conversion for E-Glass fiber

IF 2.1 3区材料科学 Q2 MATERIALS SCIENCE, CERAMICS International Journal of Applied Glass Science Pub Date : 2024-09-20 DOI:10.1111/ijag.16690

Hong Li, Gülin Demirok, Perla Ibarra-Munoz, Yingcheng Zhang, Ilkay Sökmen, Banu Arslan, Ann Jose, Ashutosh Goel

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Abstract

For the fiberglass industry making E-Glass fiber products predominantly, reduction in glass batch melting energy can be achieved by using alternative raw materials that improve the kinetics of the batch-to-melt (BtM) conversion process. The present study evaluates the effects of the following five types of natural silicate minerals: kaolin (comprising low [<5 wt%] and high [>50 wt%] “free” quartz), pyrophyllite, anorthosite, and wollastonite, on the BtM conversion process using a reference commercial E-Glass composition. The study used isothermal heat treatment of individual silicate minerals and batch samples containing them, infrared spectroscopy, powder x-ray diffraction, and differential scanning calorimetry (DSC) to characterize the stages of the BtM conversion process in detail. Based on the results of this study, a simplified reaction scheme or mechanism is proposed to account for the effect of batch chemistry on the BtM kinetics, namely, “free SiO₂” + “free CaO” → CaSiO₃ controls the kinetics of the batch melting. Relative to the E-Glass control batch made using kaolin, sand, and limestone, the DSC tests showed the benefits of using pyrophyllite (replacing kaolin and sand), anorthosite (replacing kaolin and some limestone), and wollastonite (replacing limestone) in lowering the BtM conversion energy (from room temperature [RT] to 1200°C) between 20% and 50%.

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替代天然硅酸盐对E-Glass纤维批熔转化动力学的影响

对于主要生产E-Glass纤维产品的玻璃纤维行业，可以通过使用替代原料来降低玻璃批次熔化能量，从而改善批次到熔体（BtM）转化过程的动力学。本研究评估了以下五种天然硅酸盐矿物的影响：高岭土（含低[>； 5wt %]和高[>； 50wt %]“游离”石英）、叶蜡石、斜长岩和硅灰石，使用参考商业E-Glass成分对BtM转化过程的影响。本研究采用等温热处理方法对单个硅酸盐矿物和含硅酸盐矿物的批量样品进行热处理，并用红外光谱、粉末x射线衍射和差示扫描量热法（DSC）对BtM转化过程的各个阶段进行了详细表征。基于本研究结果，提出了一种简化的反应方案或机理来解释间歇化学对BtM动力学的影响，即“游离SiO2”+“游离CaO”→CaSiO3控制间歇熔融动力学。相对于用高岭土、沙子和石灰石制成的E-Glass对照料，DSC测试表明，使用叶蜡石（取代高岭土和沙子）、斜长岩（取代高岭土和部分石灰石）和硅灰石（取代石灰石）在降低BtM转换能量（从室温[RT]到1200℃）方面的优势在20%到50%之间。

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来源期刊

International Journal of Applied Glass Science MATERIALS SCIENCE, CERAMICS-

CiteScore

4.50

自引率

9.50%

发文量

审稿时长

>12 weeks

期刊介绍： The International Journal of Applied Glass Science (IJAGS) endeavors to be an indispensable source of information dealing with the application of glass science and engineering across the entire materials spectrum. Through the solicitation, editing, and publishing of cutting-edge peer-reviewed papers, IJAGS will be a highly respected and enduring chronicle of major advances in applied glass science throughout this century. It will be of critical value to the work of scientists, engineers, educators, students, and organizations involved in the research, manufacture and utilization of the material glass. Guided by an International Advisory Board, IJAGS will focus on topical issue themes that broadly encompass the advanced description, application, modeling, manufacture, and experimental investigation of glass.