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Research on Surface Modification and Dispersion Properties of Quartz Fiber |
Received:September 22, 2022 |
DOI:10.11980/j.issn.0254-508X.2023.06.008 |
Key Words:quartz fiber pretreatment dispersity wet forming formation of sheet |
Fund Project:广东省自然科学基金(2021A1515010406)。 |
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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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