聚酰胺与乙二醇二缩水甘油醚对环氧树脂体系力学性能和阻尼性能的影响

玻璃钢/复合材料 ›› 2017, Vol. 0 ›› Issue (11): 19-24.

聚酰胺与乙二醇二缩水甘油醚对环氧树脂体系力学性能和阻尼性能的影响

李丰恺¹,邓安仲²,戎翔¹,陈科¹

1.陆军勤务学院军事设施系,重庆401331;
2.陆军勤务学院工程技术研究中心,重庆401331

收稿日期:2017-07-21 出版日期:2017-11-28 发布日期:2017-11-28
通讯作者: 邓安仲(1974-),男,博士,教授,主要从事工程管理、复合材料方面的研究,denglin929@126.com。
作者简介:李丰恺(1993-),男,硕士研究生,主要从事复合材料阻尼方面的研究。
基金资助:
国家自然科学基金(11372355);军队后勤重点科研计划(BY215J009)

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

LI Feng-kai¹, DENG An-zhong², RONG Xiang¹, CHEN Ke¹

1.Department of Military Facilities, Army Logistics University of PLA, Chongqing 401331, China;
2.Engineering Technology Research Center, Army Logistics University of PLA, Chongqing 401331, China

Received:2017-07-21 Online:2017-11-28 Published:2017-11-28

摘要/Abstract

摘要： 为了设计出具备一定力学强度,施工性能良好、阻尼内耗较高的环氧树脂体系,首先研究了低分子固化剂聚酰胺含量对环氧树脂交联密度,力学性能以及阻尼性能的影响,然后添加活性稀释剂乙二醇二缩水甘油醚,探讨了乙二醇二缩水甘油醚对环氧树脂体系粘度、力学和阻尼性能的影响,并分析了交联密度对树脂性能的影响规律。研究表明,随着聚酰胺和活性稀释剂含量的增加,树脂固化物交联度减小,抗压强度和拉伸强度下降,断裂伸长率升高,T_g向低温转移。聚酰胺与环氧树脂配比在1∶1时,阻尼损耗峰值最大。随着活性稀释剂含量的增加,环氧体系损耗峰先升高后降低,在含量为20%时,阻尼性能达到最佳。

关键词: 环氧树脂, 聚酰胺, 活性稀释剂, 力学性能, 阻尼性能

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

中图分类号:

TB332

李丰恺,邓安仲,戎翔,陈科. 聚酰胺与乙二醇二缩水甘油醚对环氧树脂体系力学性能和阻尼性能的影响[J]. 玻璃钢/复合材料, 2017, 0(11): 19-24.

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.

参考文献

[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.