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| Effects of Modified Nano-SiO2 Fillers on Mechanical Properties of Aramid Paper |
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| DOI：10.11980/j.issn.0254-508X.2015.12.007 |
| Key Words:aramid paper silane coupling agent nano- SiO2 performance |
| Author Name | Affiliation | | 张素风 | 陕西科技大学轻工与能源学院,陕西省造纸技术及特种纸品开发重点实验室,陕西西安，710021 | | 张美娟* | 陕西科技大学轻工与能源学院,陕西省造纸技术及特种纸品开发重点实验室,陕西西安，710021 | | 豆莞莞 | 陕西科技大学轻工与能源学院,陕西省造纸技术及特种纸品开发重点实验室,陕西西安，710021 | | 李鹏辉 | 陕西科技大学轻工与能源学院,陕西省造纸技术及特种纸品开发重点实验室,陕西西安，710021 | | 刘 媛 | 陕西科技大学轻工与能源学院,陕西省造纸技术及特种纸品开发重点实验室,陕西西安，710021 | | 雷 丹 | 陕西科技大学轻工与能源学院,陕西省造纸技术及特种纸品开发重点实验室,陕西西安，710021 |
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| Abstract:Nano-SiO2 particles were modified with silane coupling agent KH-550 in four different amount and the modified nano- SiO2 particle size was determined. At the same time, the effects of addition of modified nano- SiO2 on mechanical properties of aramid paper were studied, and the apparent morphology of aramid paper adding modified nano- SiO2 was observed by scanning electron microscopy (SEM). The tensile and dielectric strength of the aramid papers with and without adding nano- SiO2 were compared. The results showed that the modified nano- SiO2 particle size was decreasing with the coupling agent amount increasing. When the ratio of nano- SiO2 and silane coupling agent KH-550 was 5 g∶20 mL, the adding dosage of modified nano-SiO2 was 5%, the tensile strength of the paper was increased by 66.2%. Modified nano- SiO2 particles filled the gap in the paper was favorable for enhancing the performance of paper. Increasing the amount of the silane coupling agent had a certain influence on the elongation of the paper, but not changed significantly tightness. The tensile and dielectric strength of aramid paper adding modified nano- SiO2 were improved compared to the aramid paper without SiO2 and adding unmodified nano- SiO2. |
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