Moisture absorption process of epoxy resin an mechanical properties of its fiber composites

被引：4

作者：

Ji, Chunxu ^{[1
,4
]}

He, Hongwei ^{[2
]}

Yang, Yongkang ^{[1
,3
]}

机构：

[1] Taiyuan Univ Technol, Coll Min Engn, Taiyuan, Shanxi, Peoples R China

[2] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan, Shanxi, Peoples R China

[3] Taiyuan Univ Technol, Minist Educ, Key Lab In Situ Property Improving Min, Taiyuan, Shanxi, Peoples R China

[4] China Natl Bldg Mat Grp Co Ltd, Taiyuan, Shanxi, Peoples R China

来源：

MATERIALS TESTING | 2019年 / 61卷 / 01期

基金：

中国博士后科学基金;

关键词：

Epoxy; composites; moisture absorption; mechanical properties; harsh environment;

D O I：

10.3139/120.111276

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Epoxy resins are highly moisture absorbant when exposed to weather and environmental factors, which brings about a deterioration of durability and of mechanical properties in epoxy composites. In this paper, the effect of humidity on the durability and mechanical properties of epoxy resin and its composites was thoroughly studied for various time durations. It was found that moisture absorption increases linearly to the square root of time, following Fick's second law. Due to the resulting moisture absorption, the flexural strength and modulus of epoxy resin are impaired compared to dry samples. However, the strength retention rate of epoxy resin cast at a relative humidity of 60% and 70% are better than those of samples at relative humidity of 100% and 90%, a promising observation for assuring favorable application in high humidity environments. It is believed that this research will be beneficial for a wide and safe application of certain epoxy resin systems in harsh service environments.

引用

页码：23 / 26

页数：4

共 14 条

[1] Effect of water absorption on the mechanical properties of n-SiC filled recycled cellulose fibre reinforced epoxy eco-nanocomposites [J].

Alamri, H. ;

Low, I. M. .

POLYMER TESTING, 2012, 31 (06) :810-818

[2]

Aniskevich A., 1985, MECH CAMPOS MAT, V20, P670

[3] Elastic and sorption characteristics of an epoxy binder in a composite during its moistening [J].

Aniskevich, K. ;

Glaskova, T. ;

Jansons, J. .

MECHANICS OF COMPOSITE MATERIALS, 2005, 41 (04) :341-350

[4] On the durability of FRP composites for aircraft structures in hygrothermal conditioning [J].

Guermazi, Noamen ;

Ben Tarjem, Amira ;

Ksouri, Imen ;

Ayedi, Hassine Ferid .

COMPOSITES PART B-ENGINEERING, 2016, 85 :294-304

[5] Influence of Nano-Calcium Carbonate Particles on the Moisture Absorption and Mechanical Properties of Epoxy Nanocomposite [J].

He, Hongwei ;

Yang, Jingjing ;

Huang, Wei ;

Cheng, Muhua .

ADVANCES IN POLYMER TECHNOLOGY, 2018, 37 (04) :1022-1027

[6] Improvement of the bonding between carbon fibers and an epoxy matrix using a simple sizing process with a novolac resin [J].

He, Hongwei ;

Li, Kaixi ;

Gao, Feng .

CONSTRUCTION AND BUILDING MATERIALS, 2016, 116 :87-92

[7] Compressive properties of nano-calcium carbonate/epoxy and its fibre composites [J].

He, Hongwei ;

Zhang, Zheng ;

Wang, Jianlong ;

Li, Kaixi .

COMPOSITES PART B-ENGINEERING, 2013, 45 (01) :919-924

[8]

Lee H., 1990, NEVILLE HDB EPOXY RE

[9] SWELLING AND GLASS-TRANSITION RELATIONS FOR EPOXY MATRIX MATERIAL IN HUMID ENVIRONMENTS [J].

MCKAGUE, EL ;

REYNOLDS, JD ;

HALKIAS, JE .

JOURNAL OF APPLIED POLYMER SCIENCE, 1978, 22 (06) :1643-1654

[10] THE EFFECT OF HYGROTHERMAL FATIGUE ON PHYSICAL MECHANICAL-PROPERTIES AND MORPHOLOGY OF NEAT EPOXY-RESIN AND GRAPHITE EPOXY COMPOSITE [J].

MIJOVIC, J ;

LIN, KF .

JOURNAL OF APPLIED POLYMER SCIENCE, 1985, 30 (06) :2527-2549

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