CF/ABS的3D打印与TPU注射复合成型技术  

Overmolding Made by 3D Printing of CF/ABS and Injection Molding of TPU

作　　者：林建铭 王嘉硕 肖建华 尹志强 宋仕强 王锦成[1] LIN Jianming;WANG Jiashuo;XIAO Jianhua;YIN Zhiqiang;SONG Shiqiang;WANG Jincheng(School of Chemistry and Chemical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China;School of Material Science and Engineering,Nanchang Hangkong University,Nanchang,Jiangxi 330063,China)

机构地区：[1]上海工程技术大学化学化工学院化学实验中心,上海201620 [2]南昌航空大学材料科学与工程学院,江西南昌330063

出　　处：《塑料》2023年第5期173-176,共4页Plastics

基　　金：国家自然科学基金(52063021)。

摘　　要：采用3D打印制备CF/ABS试样,置于在模具内进行TPU注塑成型,形成注塑层全包裹或半包裹3D打印层的复合结构。结果表明,与全包裹的芯壳结构相比,半包裹的上下叠层结构更稳定,成型过程更容易控制,成型质量更高。其拉伸强度和断裂伸长率分别为16.47 MPa和464%,与全包裹式相比,分别提高了18%和40%。3D打印与注塑复合成型的上下叠层制件表面平整,3D打印层与注塑层层间粘接效果较好,拉伸前未出现分层现象。Injection molding was ideal for mass production,while 3D printing was ideal for producing products with a complicated geometry.CF/ABS samples were prepared by 3D printing and placed in the injection mold.TPU was molten through injection molding on the top of 3D printer.Two double layer materials were formed,one layer was made by 3D printing of CF/ABS,the other layer was made by injection molding of TPU.Compared with the fully wrapped core-shell structure,the upper and lower laminated structure named semi wrapped was more stable,the forming process was easier to control and the forming quality was higher.The tensile strength and elongation at break were 16.47 MPa and 464%respectively,which were 18%and 40%higher than that of fully wrapped type.In addition,the surface of the upper and lower laminated parts formed by 3D printing and injection molding was flat,the interface adhesion between 3D printing layer and injection molding layer was high,and there was no delamination before stretching.

关 键 词：3D打印 注塑成型 复合成型 芯壳结构 上下叠层结构 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]