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| Effects of Surfactant Type on the Structure and Properties of Quartz Fiber Foam Forming Paper Sheets |
| Received:January 23, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.06.014 |
| Key Words:foam forming quartz fiber surfactant silica sol |
| Fund Project:纸基复合材料水基泡沫成型机理研究（2021A1515010406）。 |
| Author Name | Affiliation | Postcode | | XIA Liqi* | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | HOU Fuqing | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | HUANG Mengle | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | ZHANG Chunhui* | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 |
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| Abstract:In this study， quartz fiber was used as the raw material， and foam forming technology was adopted to investigate the effects of changing the type and mass concentration of surfactants on the properties of quartz fibre foam slurry system， the properties of quartz fiber paper， and the wettability of silica sol to quartz fiber paper. The results showed that the sodium dodecylbenzene sulfonate （LAS） system at mass concentration of 3.0 g/L had the best foam properties with air content of 76%， bubble size of 107.0 μm， and half-life of 319 s. The surface homogeneity index of quartz fiber paper under the dodecyldimethylamine oxide （OB-2）-carboxylated cellulose nanofibers （CNF）-quartz fiber system at mass concentration of 3.0 g/L was the best at 122. The tensile strength of quartz fiber paper under the poly（vinyl alcohol） （PVA）-quartz fiber system at mass concentration of 5.0 g/L was the highest at 0.99 kN/m. The amount of surfactant residue inside the quartz fiber paper was mainly affected by the mass concentration of the surfactant in the foaming initial liquid， and the higher the initial mass concentration， the greater the adsorption of surfactant on the surface of the quartz fiber paper. At the same time， increasing the dosage of surfactant was conducive to reducing the contact angle between quartz fiber and silica sol， which in turn helped to improve the bonding between silica sol and paper. |
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