Wetting mechanism and interfacial bonding performance of bamboo fiber reinforced epoxy resin composites

被引：69
作者：
Bai, Tian [1 ]
Wang, Dong [1 ]
Yan, Jie [1 ]
Cheng, Wanli [1 ]
Cheng, Haitao
Shi, Sheldon Q. [2 ,3 ]
Wang, Ge [2 ]
Han, Guangping [1 ]
机构：
[1] Northeast Forestry Univ, Minist Educ, Key Lab Biobased Mat Sci & Technol, Harbin 150040, Peoples R China
[2] Int Ctr Bamboo & Rattan, Beijing 100102, Peoples R China
[3] Univ North Texas, Dept Mech Engn, UNT Discovery Pk,3940 North Elm St,Suite F101P, Denton, TX 76207 USA
来源：
COMPOSITES SCIENCE AND TECHNOLOGY | 2021年 / 213卷
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
Bamboo fiber; Epoxy resin; Interface; Wetting mechanism; Interfacial strength; TENSILE-STRENGTH;
D O I：
10.1016/j.compscitech.2021.108951
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
A polyacrylate-based wetting agent, BYK-358N, was used to improve the interfacial bonding between the bamboo fibers and epoxy matrix. Fourier transform infrared spectrometer and differential scanning calorimetry were used to study the curing process of epoxy resin. The wettability of the treated bamboo fiber, which by the untreated and wetting agent treated epoxy, was studied using the surface tension of epoxy and bamboo fiber. The analysis of dynamic contact angle and interfacial shear stress confirmed that the composite interface was improved. Finally, Vacuum-assisted resin transfer molding was used to prepare bamboo fiber reinforced epoxy resin (BF/EP) composites, and the tensile properties were measured. The results showed that the addition of the wetting agent could effectively improve the interface compatibility of BF/EP composites. The interfacial shear stress of BF/EP composites treated with 1% wetting agent was 24.36 MPa, tensile strength was 111.54 MPa, and Young's modulus was 3.90 GPa, which was 165.7%, 99.7%, and 66.7% higher than that of untreated BF/EP composites.
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页数：8
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