基于FDM的PP/GF3D打印材料性能研究
Research on Properties of PP/GF 3D Printing Materials Based on FDM
李攀 1陈荣 2王浩然 2刘娟 2王晓 3张永超3
作者信息
- 1. 中国重汽集团济南动力有限公司,山东 济南,250102;西安增材制造国家研究院有限公司,陕西 西安,710117
- 2. 中国重汽集团济南动力有限公司,山东 济南,250102
- 3. 西安增材制造国家研究院有限公司,陕西 西安,710117
- 折叠
摘要
以玻璃纤维(GF)、聚丙烯(PP)、尼龙 6(PA6)等为原料,制备了PP/GF复合材料,采用自主开发的工业级熔融沉积成型(FDM)设备制备了PP/GF复合材料打印件(PP/GF打印件),研究了GF种类、PA6 和乙撑双硬脂酸酰胺(EBS)用量、打印件形状特征对PP/GF打印件拉伸性能和弯曲性能的影响.结果表明:与连续 GF 相比,加入短切 GF 的 PP/GF 打印件力学性能更好.当PA6 的质量分数为 10.0%时,PP/GF打印件的拉伸强度和弯曲强度比未加入PA6 的PP/GF打印件分别提高了 32.76%和 24.32%.加入EBS可以改善PP/GF复合材料的表面粗糙度以及打印过程中挤出量的稳定性,但对 PP/GF打印件的力学性能不利.当PP/GF 打印件的截面边长和打印速率不变时,其拉伸强度和弯曲强度均随截面边数增多而降低.
Abstract
Glass fiber(GF),polypropylene(PP),nylon 6(PA6)were used to prepare the PP/GF composite.PP/GF composite printout(PP/GF printout)was prepared by self-developed industrial fused deposition modeling(FDM)equipment.The effects of GF type,PA6 and ethylene bis stearamide(EBS)content,printed shape characteristics on tensile properties and bending properties of PP/GF printouts were studied.The results show that PP/GF printouts with truncated GF have better mechanical properties than those with continuous GF.When the mass fraction of PA6 is 10.0%,the tensile strength and bending strength of PP/GF printouts are increased by 32.76%and 24.32%respectively compared with those of PP/GF printouts without PA6.The addition of EBS can improve the surface roughness of the composite and the stability of the extrusion amount during the printing process,but it is disadvantageous to mechanical properties of PP/GF printout.The tensile strength and bending strength of PP/GF printout decrease with the increase of the number of cross-section edges when the cross-section edge length and printing rate remain constant.
关键词
熔融沉积成型/玻璃纤维/聚丙烯/拉伸强度/弯曲强度Key words
fused deposition molding/glass fiber/polypropylene/tensile strength/flexural strength引用本文复制引用
出版年
2024
NETL
NSTL
万方数据