Practical Technology of Toughening Epoxy Resin: Influence of Toughening Agents on Mechanical and Heat Properties
International Journal of Industrial and Manufacturing Systems Engineering
Volume 4, Issue 2, March 2019, Pages: 19-23
Received: Aug. 19, 2019; Accepted: Oct. 14, 2019; Published: Oct. 24, 2019
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Zhou Jianwen, China Bluestar Chengrand Chemical Co., Ltd., Chengdu, China
Huang Yizhou, China Bluestar Chengrand Chemical Co., Ltd., Chengdu, China
Wang Hong, China Bluestar Chengrand Chemical Co., Ltd., Chengdu, China
Huang Yi, Chengdu Suyuan Advanced Material Co., Ltd., Chengdu, China
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This research studies the effect of several toughening agents, such as carboxyl-terminated polyether (CTPE), carboxyl-terminated polytetrahydrofuran (CTPF), carboxyl-terminated liquid nitrile rubber (CTBN), random-base liquid nitrile-butadiene rubber (RBNR) and core-shell polymer (CSP) containing polybutadiene, on epoxy resin. These epoxy resin systems containing various toughening agents showed different viscosity, in which the viscosity of CTPE and CTPF systems nearly unchanged and the viscosity of CTBN, RNBR and CSP systems increased significantly. The impact resistance of modified epoxy systems had been improved significantly, especially the CTPF system raised by 257.2%. Meanwhile, the heat resistance of epoxy systems containing different toughening agents showed different results. Compared with the pure sample, the hardness of all toughened systems decreased. CTPE and CTBN systems decreased significantly, while CTPF and CSP remained fundamentally unchanged. Toughness modification resulted in reduction of tensile strength and the retention ratio was CSP > RNBR > CTPF > CTBN > CTPE. Toughness modification resulted in reduction of compression strength and the retention ratio was RNBR > CSP > CTPF > CTBN > CTPE. All of the toughening systems kept the shear strength basically unchanged. The shear strength of the CSP system was even improved. In terms of peel strength, all of toughening systems had improved.
Epoxy Resin, Toughening, CTPE, CTPF, CTBN, RBNR, CSP
To cite this article
Zhou Jianwen, Huang Yizhou, Wang Hong, Huang Yi, Practical Technology of Toughening Epoxy Resin: Influence of Toughening Agents on Mechanical and Heat Properties, International Journal of Industrial and Manufacturing Systems Engineering. Special Issue: Manufacturing Strategy for Competitiveness. Vol. 4, No. 2, 2019, pp. 19-23. doi: 10.11648/j.ijimse.20190402.11
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This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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