Journal of Zhejiang University-SCIENCE A

, Volume 20, Issue 9, pp 660–674 | Cite as

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

  • Anna Dilfi K. F.
  • Zi-jin Che
  • Gui-jun XianEmail author


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 

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


目 的

通过在苎麻纤维表面接枝纳米二氧化硅颗粒,改 善苎麻纤维与环氧树脂的界面粘结性能,从而提 升苎麻纤维增强环氧树脂复合材料的力学性能。


将纳米二氧化硅颗粒接枝到苎麻纤维表面,从而 大幅提升苎麻纤维与环氧树脂的界面粘结性能 与复合材料的力学性能。

方 法

利用十二烷基硫酸钠均匀分散二氧化硅纳米粒 子,并在硅烷偶联剂作用下,将二氧化硅纳米粒 子接枝到苎麻纤维表面。

结 论

纳米二氧化硅接枝到苎麻纤维表面大幅提升了纤 维表面粗糙度,降低了纤维亲水性能,升高了纤 维与环氧树脂的界面粘度,从而改善了复合材料 的力学性能。


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 

CLC number



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Copyright information

© Zhejiang University and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Key Lab of Structures Dynamic Behavior and Control of the Ministry of EducationHarbin Institute of TechnologyHarbinChina
  2. 2.Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information TechnologyHarbin Institute of TechnologyHarbinChina
  3. 3.School of Civil EngineeringHarbin Institute of TechnologyHarbinChina

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