EFFECT OF POLYAMIDE AND ETHYLENE DIGLYCIDYL ETHER ON MECHANICALPROPERTIES AND DAMPING PROPERTIES OF EPOXY RESIN SYSTEM

Abstract

Abstract: In order to design an epoxy resin system with certain mechanical strength, good construction performance and high damping internal friction, the effect of content of low molecular weight agent polyamide on the cross-linking degree, mechanical properties and damping property of epoxy resin was studied. Then, by adding ethylene diglycidyl ether, the effects of ethylene diglycidyl ether on the viscosity, mechanical properties and damping properties of epoxy resin were discussed, and the effect of cross-linking degree on the properties of resin was analyzed. The results show that the cross-linking degree decreases, the compression strength and tensile strength decrease, and the elongation at break increases and the T_g transfers to low temperature with the increase of the content of polyamide or active diluent. When the ratio of polyamide to epoxy resin is 1∶1, damping loss factor is the highest.With the increase of the content of active diluent, the loss factor of epoxy system increased firstly and then decreased, and the damping performance was the best when the content was 20%.

Key words: epoxy resin, polyamide, active diluent, mechanical properties, damping performance

CLC Number:

TB332

LI Feng-kai, DENG An-zhong, RONG Xiang, CHEN Ke. EFFECT OF POLYAMIDE AND ETHYLENE DIGLYCIDYL ETHER ON MECHANICALPROPERTIES AND DAMPING PROPERTIES OF EPOXY RESIN SYSTEM[J]. Fiber Reinforced Plastics/Composites, 2017, 0(11): 19-24.

References

[1] Zhang Y, Ma N, Li X, et al. Study on damping capacity of aluminum composite reinforced with in situ TiAl rod[J] . Materials & Design, 2008, 29(5):1057-1059.
[2] Hu J, Liu G, Tang SW. Damping behavior in Al18B4O33w/Al composite containing an interfacial layer with low melting point metal particles[J] .Journal of Alloys & Compounds, 2012, 5(13): 61-67.
[3] Asmatilu R,Claus R O,Mecham J B.Improving the damping properties of composite using ferroelectric inclusion[J] .Journal of intelligent material systems and structures, 2005,16(5): 463-468.
[4] A. Treviso, B. Van Genechten, D. Mundo.Damping in composite materials: Properties and models[J] . Composites Part B Engineering, 2015, 7(8): 144-152.
[5] 张忠明, 刘宏钊. 材料阻尼及阻尼材料的研究进展[J] . 功能材料, 2001, 32(3): 227-230.
[6] 石敏先, 黄志雄, 郦亚铭, 等. 活性稀释剂对环氧树脂阻尼性能的影响[J] . 粘接, 2007, 28(4): 7-9.
[7] 蔡宏洋, 李刚, 刘海洋. 柔性胺T403对环氧树脂体系力学性能及交联密度的影响[J] . 玻璃钢/复合材料, 2009(1): 38-41.
[8] 武渊博, 李鹏, 杨小平, 等. 活性稀释剂含量对环氧树脂体系阻尼性能的影响[J] . 玻璃钢/复合材料, 2011(6): 3-5.
[9] 树脂浇注体性能试验方法: GB/T 2567—2008[S] . 2008.
[10] 环氧树脂粘度测定方法: GB/T 22314—2008[S] . 2008.
[11] 林丽, 张红, 李远, 等. 热固性聚合物的交联密度测试方法研究进展[J] . 热固性树脂, 2012(5): 60-63.
[12] Plastics-determination of dynamic mechanical properties-part 5: flexural vibration-non-resonance method: ISO 6721-5[S] .
[13] Saville B, Watson A A. Structural Characterization of Sulfur-Vulcanized Rubber Networks[J] . Rubber Chemistry & Technology, 1967, 40(1): 100-148.
[14] Hagen R, Salman. L Stenberg. B. Effects of the type of crosslink on viscoelastic properties of natural rubber[J] . J Polym Sci PartB: Polym Phys,1996, 34(12): 1997-2006.
[15] 赵菲, 毕薇娜, 张萍, 等. 用核磁共振法研究促进剂对硫黄硫化天然橡胶结构的影响[J] . 合成橡胶工业, 2008, 31(1): 50-53.