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石英纤维的表面改性及分散特性研究
Research on Surface Modification and Dispersion Properties of Quartz Fiber
收稿日期：2022-09-22  
DOI：10.11980/j.issn.0254-508X.2023.06.008
关键词:  石英纤维  预处理  分散性  湿法成形  纸张匀度
Key Words:quartz fiber  pretreatment  dispersity  wet forming  formation of sheet
基金项目:广东省自然科学基金（2021A1515010406）。
作者单位邮编
丁能鑫 华南理工大学轻工科学与工程学院，广东广州，510640 510640
侯夫庆 华南理工大学轻工科学与工程学院，广东广州，510640 510640
杨会康 华南理工大学轻工科学与工程学院，广东广州，510640 510640
张春辉* 华南理工大学轻工科学与工程学院，广东广州，510640 510640
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摘要:本研究通过对石英纤维进行酸/碱溶液和表面活性剂结合的预处理方式，改善其在水中的分散性，重点研究了酸溶液、碱溶液、表面活性剂的种类及浓度对石英纤维分散特性的影响。结果表明，预处理后的石英纤维具有良好的分散特性，其湿法成形的纸张（石英纸）表面平整、无明显纤维絮聚成团。通过H2SO4和聚氧化乙烯（PEO）2种预处理方式的结合，石英纤维在水中的分散性较佳。当H2SO4的pH值为3、PEO的质量浓度为0.1 g/L时，预处理后的石英纤维在水中的分散性最佳，石英纸的匀度指数可达89.1，较未处理原纤维抄造的石英纸匀度指数（222.6）降低了60%。
Abstract:In this study， quartz fibers were pretreated with combination of acid/alkali solution and surfactant to improve the dispersion properties in water， and the effects of the type and concentration of acid solution， alkali solution， and surfactant on the dispersion properties of quartz fibers were accentuated. The results showed that the pretreated quartz fibers had good dispersion properties， and the surfaces of the wet-formed papers （quartz papers） were smooth without obvious fiber flocculation. Through the combination of H2SO4 and PEO pretreatments， the dispersity of quartz fiber in water improved. When the pH value of H2SO4 was 3 and concentration of PEO 0.1 g/L， the dispersity of quartz fiber after pretreatment in water was the best， and the formation index of quartz paper reached 89.1， which was 60% lower than that of quartz paper made from untreated fiber （222.6）.
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