發(fā)布時(shí)間：2018-04-06 07:20

  本文選題：多壁碳納米管　切入點(diǎn)：玻璃纖維織物　出處：《材料工程》2017年09期

【摘要】：通過物理沉積法和靜電吸附法在玻璃纖維織物(GF)表面包覆多壁碳納米管(MWCNTs),制備GF-d-CNTs和GF-a-CNTs兩種多尺度增強(qiáng)體,采用真空灌注工藝制備MWCNTs-GF增強(qiáng)環(huán)氧復(fù)合材料。采用靜態(tài)、動態(tài)力學(xué)法、掃描電鏡、紅外光譜等分析手段,對復(fù)合材料的拉伸、彎曲、層間剪切、黏彈性和微觀組成結(jié)構(gòu)表征。結(jié)果表明:MWCNTs包覆于GF表面形成"倒刺"結(jié)構(gòu),并通過嚙合作用增強(qiáng)了復(fù)合材料界面的強(qiáng)度和樹脂韌性,提高了復(fù)合材料的玻璃化溫度(Tg)等;與純GF復(fù)合材料相比,GF-d-CNTs復(fù)合材料的拉伸強(qiáng)度和模量分別提高14.5%和37.9%,彎曲強(qiáng)度和模量分別提高26.2%和36.6%,層間剪切強(qiáng)度提高31.5%;GF-a-CNTs復(fù)合材料的Tg提高了8.9℃。
[Abstract]:Two kinds of multi-scale reinforcements of GF-d-CNTs and GF-a-CNTs were prepared by coating multi-wall carbon nanotubes (MWCNTs) on the surface of glass fiber fabric by physical deposition and electrostatic adsorption. MWCNTs-GF reinforced epoxy composites were prepared by vacuum perfusion process.The tensile, bending, interlaminar shear, viscoelasticity and microstructure of the composites were characterized by static and dynamic mechanical methods, scanning electron microscopy and infrared spectroscopy.The results show that the "barbed" structure is formed in the surface of GF coated with w / MWCNTs, and the interfacial strength and resin toughness of the composites are enhanced by meshing, and the glass transition temperature (Tg) of the composites is increased.Compared with pure GF composites, the tensile strength and modulus of GF-d-CNTs composites were increased by 14.5% and 37.9%, respectively, the flexural strength and modulus were increased by 26.2% and 36.6%, and the interlaminar shear strength of GF-a-CNTs composites increased by 31.5% and 8.9 鈩，

本文編號：1718539