三维编织光固化3D打印复合材料的制备及力学性能

Preparation and mechanical properties of photocuring 3D Printing composite by three-dimensional weaving

光敏树脂固化后的低强力一直是阻碍光固化3D打印技术发展的主要因素,利用三维编织织物的结构特点弥补光固化3D打印构件强力弱的缺点,文章重点研究了在光固化3D打印技术的基础上,结合三维编织技术制备3D打印复合材料的方式方法及对该种复合材料的力学性能进行测试分析。结果表明:三维编织光固化3D打印复合材料相对于纯光敏树脂材料,其弹性模量和拉伸断裂强度显著增加;高强聚乙烯纱线的增强效果最好,玻璃纤维纱线增强效果次之,碳纤维纱线增强效果最差。

The low strength of the cured photosensitive resin has been a major obstacle to the development of stereolithography. The three-dimensional braided fabric is used to make up the shortcomings of the light-cured 3D printing component. This paper focuses on the study of stereomicro lithography technology which was combined with three-dimensional braiding technology to produce stereolithography composite materials and its basic mechanical properties. The results show that the elastic modulus and tensile fracture strength of the three-dimensional braided composites are significantly higher than that of the pure;The reinforcing effect of the high strength polyethylene yarn was the best, followed by the glass fiber yarn, and the carbon fiber yarn was the worst.