大连工业大学学报2026，Vol.45Issue(1)：69-78,10.DOI:10.19670/j.cnki.dlgydxxb.2026.0108
3D打印石墨基复合材料及有机涂层浸渍
3D-printed graphite-based composites and organic coating impregnation
摘要
Abstract
The rheological performance of graphite-based composite(HxBy,where x and y denote the mass contents of sodium-based bentonite H and graphite B,respectively)inks were improved using ammonium chloride(NH4Cl)aqueous solution.HxBy composites were fabricated via direct ink writing(DIW)3D printing combined with a sintering process.By impregnating with epoxy resin(EP)and then calcining,HxBy composites with high flexural strength were prepared.The ink rheology was analyzed using a rheometer,while the material structure was characterized by Fourier transform infrared spectroscopy(FT-IR)and wide-angle X ray diffraction(XRD).Thermal stability,thermal,and electrothermal properties were evaluated via thermogravimetric analysis(TG),scanning electron microscopy(SEM),infrared thermal imaging,and other techniques.The results showed that the bending strength of the H3B7 composites after impregnation and calcination(H3B7/EP/S)was increased by 89.0 times.The H3B7/EP/S composite reached a stable temperature of 266.8 ℃ within 400 s on a 300 ℃(350 W)hot stage.When powered at 3,5,7 and 9 V,the H3B7/EP/S composite achieved temperatures of 42.2,67.8,104.3 and 165.9 ℃ at 600 s,respectively,and exhibited excellent cyclic stability.关键词
石墨/膨润土/3D打印/电热/浸渍Key words
graphite/bentonite/3D printing/electrothermal/impregnation分类
通用工业技术引用本文复制引用
王伟,段玉洁,贾吉,拖晓航,宫玉梅..3D打印石墨基复合材料及有机涂层浸渍[J].大连工业大学学报,2026,45(1):69-78,10.基金项目
辽宁省科学计划工业重大专项(2019JH1/10100010) （2019JH1/10100010）
大连市科技创新基金项目(2022JJ12GX030). （2022JJ12GX030）
