相关实验视频
Updated: Mar 3, 2026

Ligand Nano-cluster Arrays in a Supported Lipid Bilayer
Published on: April 23, 2017
分子集群的动态共价网络,用于硬性和抗冲击玻璃,具有可行的可加工性
Haiyan Xiao1, Jia-Fu Yin2, Linjie Lan1
1State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou, P. R. China.
本研究介绍了一种无聚合物方法,用于制造先进的玻璃材料. 通过与动态键交联亚纳米级的聚二氧化 (POSS) 颗粒,新材料实现了高强度,硬度和透明度,具有出色的抗冲击性和粘合性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 纳米技术纳米技术
背景情况:
- 聚合物有机玻璃由于机械性能,硬度和抗冲击性之间的权衡而面临限制.
- 现有的材料努力平衡强度,性和可加工性.
研究的目的:
- 开发一种无聚合物方法,用于制造具有增强机械性能和功能的玻璃.
- 克服传统聚合物有机玻璃固有的局限性.
主要方法:
- 使用无聚合物方法制造玻璃,通过交叉连接亚纳米级的聚二氧化 (POSS) 颗粒.
- 使用动态共价键,特别是与1,4-乙二酸形成的乙键.
- 机械性能,透明度,抗冲击性,可加工性和粘合强度的表征.
主要成果:
- 达到高弹性模量 (1.79 ± 0.43 GPa) 和硬度 (0.36 ± 0.03 GPa) 的高透明度 (>89.5%的传导率).
- 由于动态网络的高能耗散射能力,表现出优异的抗冲击能力 (258.14 J cm−3).
- 在玻璃基板上获得高粘合强度 (8.20 ± 0.98 MPa),并可通过热压加工进行可行加工.
结论:
- 开发的无聚合物方法可以创建玻璃,其硬度,粘性,可加工性和抗冲击性均为平衡的组合.
- 这种新的化学系统为设计具有卓越综合性能的先进玻璃材料提供了一个有前途的途径.
- 动态共价网络为下一代功能材料提供了一个多功能平台.
相关概念视频
Network Covalent Solids
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
Molecular and Ionic Solids
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
Polymer Classification: Crystallinity
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
Bonding and Strength of Aggregate
Intermolecular Forces and Physical Properties
Crystal Growth: Principles of Crystallization
Initiating crystallization involves manipulating the concentration of the solute and the temperature of the solution. Since crystal growth occurs when the ratio of concentration and solubility of the solute in the solvent...

