Luo Feng, Sun Tao Lin, Nakajima Tasuku, Kurokawa Takayuki, Ihsan Abu Bin, Li Xufeng, Guo Honglei, Gong Jian Ping
Laboratory of Soft and Wet Matter, Faculty of Advanced Life Science, and §Laboratory of Soft and Wet Matter, Graduate School of Life Science, Hokkaido University, Sapporo 060-0810, Japan.
Laboratory of Soft and Wet Matter, Faculty of Advanced Life Science, and Laboratory of Soft and Wet Matter, Graduate School of Life Science, Hokkaido University, Sapporo 060-0810, Japan.
ACS Macro Lett. 2015 Sep 15;4(9):961-964. doi: 10.1021/acsmacrolett.5b00501. Epub 2015 Aug 21.
Tough hydrogels with facile processability to reform into various shapes are required in many practical applications. In this work, we reported that a novel, tough, and self-healing physical hydrogel based on polyion complex (PIC) can be dissolved in 4 M NaCl solution to form a PIC solution. The PIC solution can be easily reprocessed into various shapes, such as thin films, sheets, fibers, and capsules, by using simple methods, such as casting and injection, while maintaining excellent mechanical properties comparable to, or even better than, the original hydrogel. The reprocessability and robust mechanical properties of PIC hydrogels are promising for practical applications in soft materials, especially in 3D/4D printing technology.
许多实际应用都需要具有易于加工成各种形状的坚韧水凝胶。在这项工作中，我们报道了一种基于聚离子复合物（PIC）的新型、坚韧且自愈的物理水凝胶可以溶解在4M NaCl溶液中形成PIC溶液。通过使用诸如浇铸和注射等简单方法，PIC溶液可以很容易地重新加工成各种形状，如薄膜、薄片、纤维和胶囊，同时保持与原始水凝胶相当甚至更好的优异机械性能。PIC水凝胶的可再加工性和强大的机械性能在软材料的实际应用中很有前景，特别是在3D/4D打印技术中。
