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强度-性协同作用的环氧纳米复合材料合一个分层的石墨烯框架和纳米修饰接口

Dongfang Guo¹, Xingkai Huang¹, Zhengzhi Mu^1,2

¹Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China.

|March 9, 2026

概括

这项研究介绍了一种新的多层次层次强化策略,用于环氧纳米复合材料. 该方法通过防止纳米填充剂聚合和改善界面相互作用,显著提高了强度和性.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
纳米技术纳米技术

背景情况:

环氧纳米复合材料提供优越的机械强度,但由于纳米填充器问题,与同时的性改善作斗争.
大自然中的等级结构激发了克服材料设计局限性的策略.
纳米填充剂聚合和差的界面粘附阻碍了传统环氧纳米复合材料的性能.

研究的目的:

开发一个多层次的等级增强策略,以协同增强环氧纳米复合材料的强度和性.
调查改造的石墨烯支架在防止重新堆积和促进裂纹偏移方面的作用.
使用二氧化纳米粒子 (SiO2 NPs) 和碳纳米管 (CNTs) 改进接口相互作用.

主要方法:

使用SiO2 NPs和CNTs修改的分层石墨烯支架制造环氧纳米复合材料.
描述多层次层次结构及其对裂传播的影响.
机械性能的评估,包括强度,断裂性 (KIC) 和稳定状态断裂性 (KJC).

主要成果:

拟议的战略有效地防止了石墨烯的重新堆积,并促进了裂的偏移.
用SiO2NP和CNT修改的石墨烯表面显著增强了界面相互作用.
在0.625重量%的石墨烯中,RGO-SiO2-CNTs/EP纳米复合材料的强度增加了14.85%,骨折性提高了155%以上.
观察到51.9%的稳定状态骨折性得到改善.

结论:

多级阶层增强策略为设计高性能环氧纳米复合材料提供了一种新的方法.
通过控制的纳米填充器组织和接口工程,可以实现强度和性的协同改进.
这种方法为开发具有卓越机械性能的先进材料提供了新的范式.

关键词:

生物启发的多层次层次结构结构.环氧纳米复合材料的使用.有层的石墨烯脚手架.纳米改造的接口强度 - 性协同作用.

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