Mechanical characterization of different epoxy resins enhanced with carbon nanofibers

被引：13

作者：

Santos, P. ^{[1
]}

Maceiras, A. ^{[1
]}

Valvez, S. ^{[1
]}

Reis, P. N. B. ^{[1
]}

机构：

[1] Univ Beira Interior, Ctr Mech & Aerosp Sci & Technol C MAST UBI, Dept Electromech Engn, P-6201100 Covilha, Portugal

来源：

FRATTURA ED INTEGRITA STRUTTURALE | 2021年 / 15卷 / 55期

关键词：

Composites; Epoxy resins; Carbon nanofibers; Mechanical properties; STRAIN-RATE; NANOCOMPOSITES; NANOPARTICLES; PERFORMANCE; COMPOSITES; POLARITY; POLYPROPYLENE; DISPERSION; KINETICS; FILLERS;

D O I：

10.3221/IGF-ESIS.55.15

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Epoxy with carbon nanofibers (CNFs) are effective nano enhanced materials that can be prepared by easy and low-cost method. The present paper compares the improvements, in terms of flexural and viscoelastic properties, of two epoxy resins reinforced with different weight percentages (wt.%) of CNFs. These epoxy resins have different viscosities, and weight contents between 0% and 1% of CNFs were used to achieve the maximum mechanical properties. Subsequently, for the best configurations obtained, the sensitivity to the strain rate and the viscoelastic behaviour (stress relaxation and creep) were analysed based on international standards. It was possible to conclude that, for both resins, carbon CNFs promote significant improvements in all the studied mechanical properties, even for different contents by weight.

引用

页码：198 / 212

页数：15

共 47 条

[1] Influence of amine-terminated additives on thermal and mechanical properties of diglycidyl ether of bisphenol A (DGEBA) cured epoxy [J].