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Fabrication of TiO2/ANF Composite Based on Mechanochemical Effect and Its Effect on the UV-resistance of Aramid Nanopaper |
Received:August 06, 2022 |
DOI:10.11980/j.issn.0254-508X.2022.11.005 |
Key Words:aramid nanofiber nano-TiO2 mechanochemistry UV-resistance paper strength |
Fund Project:陕西省重点研发计划项目(2022GY-275,2021ZDLGY14-05);国家自然科学基金(22008146);天津市制浆造纸重点实验室(天津科技大学)开放基金(202005)。 |
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Abstract:Aramid nanofiber/nano-TiO2 composite paper with excellent mechanical strength and UV-resistance ability was fabricated by ultrasound blending or ball milling to mix aramid nanofiber and nano-TiO2 based on mechanochemical mechanism. The effects of preparation method and nano-TiO2 dosage on the strength and UV-resistance of the composite paper were investigated. The results showed that compared with traditional method of ultra-sound blending, ball milling could enhance the interface bonding between ANF and nano-TiO2. When nano-TiO2 dosage was 6%, the strength of paper fabricated by ball milling was 70.13 MPa, which was increased by 12% compared with that of paper made by ultra-sound blending. In addition, the strength retention rate of the composite paper made by ball milling was 81.5%, which was increased by 15.8 percentage points compared with the sample made by ultra-sound blending. The UV-resistance of the composite paper made by ball milling was also enhanced with increasing the dosage of nano-TiO2. |
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