Effect of curing agents and hollow glass microspheres on the compression properties of syntactic foams

被引：6

作者：

Pei, Leizhen ^{[1
]}

Ya, Bin ^{[1
]}

Ding, Zhaojun ^{[1
]}

Fan, Zhijian ^{[1
]}

Zhang, Xingguo ^{[1
,2
]}

机构：

[1] Dalian Univ Technol, Dalian 116000, Peoples R China

[2] Dalian Univ Technol, Ningbo Inst, Ningbo 315000, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2023年 / 27卷

关键词：

Syntactic foam; Curing agent; Hollow glass microspheres; Compression properties; Density; MECHANICAL-PROPERTIES; BEHAVIOR; DENSITY; FABRICATION; TENSILE; FILLER;

D O I：

10.1016/j.jmrt.2023.11.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To investigate the compression properties and failure mechanisms of syntactic foams, two different resin matrices and three types of hollow glass microspheres (HGMs) were used to prepare syntactic foams with different properties. Results showed that the compression strength of syntactic foams increases with the increase in the compression strength of HGMs or resin matrix. Low-strength HGMs will be the first to break down as a source of cracks under stress. When the stress value exceeds the compression strength of the matrix, the matrix will deform and break, leading to the overall destruction of syntactic foam. High-strength HGMs not only act as a lightweight filler but also act as a reinforcing phase to improve the strength of the syntactic foam. The matrix located at the interface will experience initial cracking when subjected to stress, becoming the origin of subsequent cracks. Consequently, the weaker part between the HGMs and the matrix will be the initial point of failure, resulting in the formation of a crack source. The failure of the matrix will ultimately result in the complete destruction of the syntactic foam.

引用

页码：5321 / 5331

页数：11

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