光固化3D打印用光敏树脂材料改性研究进展

Research Progress in Modification of Photosensitive Resin Materials for Photocuring 3D Printing

光固化3D打印技术凭借其高精度、可快速成型、可成型复杂制件的特点成为制造行业的一项新兴技术。光敏树脂作为光固化3D打印技术的主要耗材,其力学性能、耐热性、精度和强度等性能都不够理想,无法满足工业化生产需求。为获得具有高机械强度和功能性的光敏树脂,必须对其进行改性处理。文章主要介绍用于光固化3D打印的光敏树脂的改性研究现状。从SLA光固化快速成型技术原理入手,介绍光敏树脂的各个组成部分,从反应型和添加型两方面展示光敏树脂的改性研究,最后对光敏树脂的发展趋势进行展望。文章指出未来在完善现有光敏树脂材料的基础上,应开发更多用于3D打印的新型材料,拓展树脂配方,对光敏树脂改性进行更深入的研究,从而开发出更高性能、更高强度、更绿色环保的树脂体系。

Light curing 3D printing technology has become an emerging technology in the manufacturing industry because of its high precision,rapid prototyping,and complex parts can be formed.Photosensitive resin is the main consumable of light curing 3D printing technology,and its mechanical properties,heat resistance,precision and strength are not ideal enough to meet the needs of industrial production.In order to obtain the photosensitive resin with high mechanical strength and function,it must be modified.In this paper,the modification of photosensitive resin for photocuring 3D printing is introduced.Starting with the principle of SLA photocuring rapid prototyping technology,the various components of photosensitive resin are introduced,and the modification of photosensitive resin is shown from the two aspects of reaction type and addition type.Finally,the development trend of photosensitive resin is prospected.It is pointed out that in the future,on the basis of perfecting the existing photosensitive resin materials,more new materials for 3D printing will be developed,resin formula will be expanded,and more in-depth research will be carried out on the modification of photosensitive resins,so as to develop more high-performance,higher-strength,and greener resin systems.