Hydrogels are a kind of advanced materials with physical and chemical properties close to soft tissues. Many polymers have been used in the preparation of hydrogels. Silk fibroin has been widely used in biomedical application due to excellent biocompatibility, biodegradability and facility to fabric
硅烯作为一种新兴二维材料,与水化硅酸钙(C-S-H,硅酸盐水泥最主要的水化产物)同为硅质基底材料,将其与水化硅酸钙复合或能有效提高水化硅酸钙的韧性。基于分子动力学模拟技术,探索了单层硅烯在水化硅酸钙表面成核生长的可能性。模拟结果显示,通过与沉积硅原子形成高强度的Si-O-Si键,水化硅酸钙表面的高反应活性非桥接氧原子(NBOs)促进了硅原子团簇的成核,已成核的硅原子团簇在水化硅酸钙表面均匀分布。随着硅原子的进一步沉积,已成核的硅原子团簇进一步生长,通过桥接键的形成和团簇形状的改变,相邻的小团簇发生合并,形成大团簇。最终,一片较为完整的单层硅烯在水化硅酸钙表面生长出来,且表面覆盖率高。在上述过程
Recently, it was proved that tailoring the reinforcement distribution is expected to overcome the contradiction between the strength and toughness of metal matrix composites (MMCs). However, the architectural design includes many factors, i.e. reinforcement size, shape and types as well as structura
The rapid development in the fields of microelectronics and communication technologies has put forward higher requirements for thermal management materials, and there is an urgent need for designing and developing carbon materials with high-oriented thermal conductivity. High-oriented carbon materia