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- W2365307264 abstract "To improve the interface adhesion of the aramid fiber Ⅲ /epoxy resin composites,acetic anhydride was used to modify aramid fiber Ⅲ at room temperature,50 ℃,75 ℃,100 ℃. The surface properties of untreated and treated aramid fiber Ⅲ were characterized by scanning electron microscope,fourier transform-infrared spectroscopy and X-ray photoelectron spectroscope. The untreated and treated fiber and 24 A polyurethane resin with the ratio of 1∶ 1. 5 were separately weighed. The solution of 24 A polyurethane resin in dimethyltoluene was casted uniformly onto the surface of the modified fibers,then the composites were prepared by laminating. According to the GB /T 1449-2005,the bending strength of all composites was tested. The results show that oxygen-containing groups on the modified fiber surface increase and the surface is rougher; furthermore,the bending strength of the composite with treated fiber and resin is increased by 35. 8%. Acetic anhydride treatment is an effective method for the modifying aramid fiber Ⅲ." @default.
- W2365307264 created "2016-06-24" @default.
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- W2365307264 date "2014-01-01" @default.
- W2365307264 modified "2023-09-25" @default.
- W2365307264 title "Effect of acetic anhydride modification on interface of aramid fiber / epoxy composites" @default.
- W2365307264 hasPublicationYear "2014" @default.
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