3D打印碳纤维/聚酯复合材料的制备与研究  

Preparation and Research of CF/Polyester Composites for 3D Printing

作　　者：王晨蕾 胡浩[1] 乔雯钰[1] 杨飏 顾哲明[1] WANG Chen-lei;HU Hao;QIAO Wen-yu;YANG Yang;GU Zhe-ming(Shanghai Engineering Research of Center of 3D Printing Materials,Shanghai Research Institute of Materials,Shanghai 200437,China)

机构地区：[1]上海3D打印材料工程技术研究中心,上海材料研究所,上海200437

出　　处：《塑料工业》2021年第10期42-46,125,共6页China Plastics Industry

基　　金：上海3D打印材料工程技术研究中心(11DZ2251100);上海材料研究所技术创新项目(21SG-14)。

摘　　要：选用碳纤维粉对聚酯材料进行改性,制备出适用于熔融堆积成型技术用碳纤维复合高分子丝材。通过研究不同长径比和不同含量的碳纤维粉对聚酯基材的增强效果,对其打印样条的力学性能及摩擦磨损性能展开分析。结果表明,当碳纤维添加5份时,长径比短的碳纤维对复合材料拉伸强度增强效果最好,为27.2 MPa;碳纤维含量从5份增至15份,材料的拉伸强度降低。碳纤维/聚酯复合材料的摩擦系数随碳纤维长径比增大表现出先降低后升高趋势,磨痕宽度随碳纤维长径比的增大而减小;碳纤维/聚酯复合材料的摩擦系数随碳纤维含量增大表现出先增大后减小趋势,磨痕宽度随碳纤维添加量增大而增大,碳纤维的添加份数为15份时磨痕宽度最大,达到14.97 mm。Carbon fiber powder was used to modify polyester material to prepare carbon fiber composite polymer wire suitable for fused deposition modeling.The reinforcing effect of carbon fiber with different particle aspect ratios and different contents on polyester substrate was studied.The mechanical properties and friction and wear properties of printing spline were discussed.The results show when the carbon fiber content is 5 phr,the tensile strength of the composite reinforced by carbon fiber with short aspect ratio is the best,which is 27.2 MPa.The tensile strength decreases with the increase of carbon fiber content from 5 phr to 15 phr.The friction coefficient of carbon fiber/polyester composites first decreases and then increases with the increase of aspect ratio,and the wear scar width decreases with the increase of aspect ratio.The friction coefficient of carbon fiber/polyester composites first increases and then decreases with the increase of carbon fiber contents.The wear scar width increases with the increase of carbon fiber content.When the carbon fiber content is 15 phr,the wear scar width could achieve 14.97 mm.

关 键 词：碳纤维 聚酯 力学性能 摩擦磨损 三维(3D)打印 

分 类 号：TQ320.4[化学工程—合成树脂塑料工业]