相关实验视频

Updated: Jun 25, 2025

Synthesis and Characterization of Supramolecular Colloids

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

软硬纳米粒子联合组装成宏观合体复合材料,具有定制的机械性能和可加工性

Yan Cui¹, Yurui Xing², Jingwen Hou³

¹School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China.

Small (Weinheim an der Bergstrasse, Germany)

|May 31, 2024

概括

研究人员开发了一种新的自下而上的方法,用于制造强大的合体复合材料. 该技术集成了软聚合物微粒和硬纳米颗粒,使化玻璃具有可调节的机械性能和可塑性加工.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
聚合物化学聚合物化学

背景情况:

体复合材料在光学,能源和生物医学方面具有先进应用的潜力.
一个重大挑战在于,在从纳米级构建块中获得的宏观复合材料中实现机械强度.
弥合纳米粒子和宏观材料之间的尺寸差距对于实际应用至关重要.

研究的目的:

展示一种自下而上的方法,用于制造具有定制宏观形状的合体复合材料.
研究软聚合物微粒和硬无机纳米粒子的联合组装.
探索由此产生的软硬复合材料的机械性能和加工能力.

主要方法:

使用一个自下而上的联合组装策略,涉及纳米尺寸的软聚合物微粒和硬无机纳米粒子.
设计毛的状冠状和硬纳米颗粒之间的相互作用,以创建一个软硬交替结构.
控制块共聚合物微粒和纳米颗粒的集成,以实现各种微观结构.

主要成果:

已成功制造出具有可调微 (90-270 MPa) 和宏 (压缩7-42 MPa,曲2-24 MPa) 机械强度的宏观合性复合材料.
通过组成部分的软硬交替联系,证明了集体实体的形成.
通过控制块共聚合物微粒和纳米粒子集成,实现了多样化的内部微结构.

结论:

开发的方法可以从纳米级组件中创建机械坚固的合体复合材料.
软聚合物微粒的结合提供了动态可变性和温度依赖性质.
这些复合材料对功能性化玻璃的低温塑料加工等应用具有前途.

关键词:

合性纳米颗粒是什么意思化二氧化玻璃是什么意思宏观的合体复合材料.机械性能机械性能机械性能多尺度自组装自组装机

更多相关视频

Advanced Compositional Analysis of Nanoparticle-polymer Composites Using Direct Fluorescence Imaging

Advanced Compositional Analysis of Nanoparticle-polymer Composites Using Direct Fluorescence Imaging

Published on: July 19, 2016

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles

Published on: February 4, 2013

相关概念视频

Colloids

Colloids

Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...

Coagulation

Coagulation

Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...