1. 天津科技大学机械工程学院
2. 天津市轻工与食品工程机械装备集成设计与在线监控重点实验室
3. 新疆农垦科学院农业农村部西北绿洲节水农业重点实验室/水肥资源高效利用兵团重点实验室
纸质出版:2024
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杨晓宇, 张治国, 李全胜. BC/CS复合水凝胶的3D打印工艺研究[J]. 传感器与微系统, 2024,(2):52-56.
杨晓宇, 张治国, 李全胜. BC/CS复合水凝胶的3D打印工艺研究[J]. 传感器与微系统, 2024,(2):52-56. DOI: 10.13873/J.1000-9787(2024)02-0052-05.
以细菌纤维素(BC)和壳聚糖(CS)为基质的水凝胶同时具有细菌纤维素的高生物相容性和壳聚糖的抗菌性能,在伤口敷料、组织工程等领域获得了广泛的应用,但其3D打印仍面临困难。本文利用BC和CS的物理特性和其交联机制,制备出可用于3D打印的BC/CS复合水凝胶油墨,同时使用纳米粘土作为流变改性剂,提升水凝胶的自支撑能力。对于交联方法,不再采用传统的浸泡方式,使用喷雾器将戊二醛溶液均匀喷洒在打印样品表面,既不会破坏样品的结构,也可以达到交联的目的。接着,构建了一种适合BC/CS复合水凝胶打印的3D打印系统,并在此基础上研究分析了喷头挤出压力、移动速度、打印高度对水凝胶精度的影响。本文提出的方法有望实现BC/CS复合水凝胶的墨水直写(DIW)打印提供指导。
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