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Journal of Zhejiang University SCIENCE A

ISSN 1673-565X(Print), 1862-1775(Online), Monthly

Grafting of nano-silica onto ramie fiber for enhanced mechanical and interfacial properties of ramie/epoxy composite

Abstract: To enhance the bonding properties between ramie fiber and epoxy resin, the ramie fiber was modified using nano-silica grafting. Hydrophilic nano-silica treated with water-soluble sodium dodecyl sulfate (SDS) and organic silane coupling agents was grafted onto the surface of ramie fiber. The surface roughness of the fibers was considerably increased after grafting. The nano-silica particles on the fiber surface enhanced the mechanical and thermal properties of the fiber-epoxy composite plates. Based on an analysis of contact angle measurements and a water absorption study, it was determined that the hydrophilicity of the treated fiber was weakened.

Key words: Nano-silica; Sodium dodecyl sulfate (SDS); Silane coupling agent; Ramie fiber; Mechanical properties; Interfacial properties

Chinese Summary  <41> 苎麻表面接枝改性及其对苎麻纤维增强环氧复合材料力学性能与界面性能的影响研究

关键词组:纳米二氧化硅; 十二烷基硫酸; 硅烷偶联剂; 苎麻纤维; 力学性能; 界面性能


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DOI:

10.1631/jzus.A1900186

CLC number:

TQ31

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On-line Access:

2024-08-27

Received:

2023-10-17

Revision Accepted:

2024-05-08

Crosschecked:

2019-08-06

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