Influence of Maleinized Polybutadiene on Adhesive Strength and Toughness of Epoxy Resins

IF 3.4 4区化学 Q2 POLYMER SCIENCE

International Journal of Polymer Science Pub Date : 2022-12-28 DOI:10.1155/2022/9517467

Mohammed Panthakkal Abdul Muthalif, Youngson Choe

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Abstract

This study explored the effect of maleinized polybutadiene (MPB) on the mechanical properties of epoxy resins. Diglycidyl ether of bisphenol-A, an epoxy resin, was modified by incorporating MPB having different molecular weights in order to improve the fracture toughness and peel strength. MPB was mixed with epoxy resin at several concentrations (5, 10, and 15 phr), with the epoxy resin as the major phase and MPB as the minor phase. A comparative study was performed to investigate the influence of MPB on epoxy resins based on their molecular weight difference. Lap shear test results showed that the shear strength of the MPB-modified epoxy resins was superior to that of the neat epoxy resin. At 10 wt% MPB loading, the modified epoxy resin exhibited an 87% enhancement in T-peel strength relative to that of the neat epoxy resin. Moreover, the fracture energy of the modified epoxy system increased proportionally with the amount of MPB in the epoxy matrix. These results indicate that MPB incorporation is a simple and effective method for designing multifunctional epoxy resins, thus facilitating their industrial application in various spheres.

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马来化聚丁二烯对环氧树脂粘接强度和韧性的影响

本研究探讨了马来化聚丁二烯（MPB）对环氧树脂力学性能的影响。通过引入不同分子量的MPB对环氧树脂双酚A的二缩水甘油醚进行改性，以提高断裂韧性和剥离强度。将MPB与环氧树脂以几种浓度（5、10和15）混合 phr），其中环氧树脂作为主相并且MPB作为次相。基于分子量差异，对MPB对环氧树脂的影响进行了比较研究。搭接剪切试验结果表明，MPB改性环氧树脂的剪切强度优于纯环氧树脂。在10 相对于纯环氧树脂，改性环氧树脂的T-剥离强度提高了87%。此外，改性环氧树脂体系的断裂能随环氧树脂基体中MPB的含量成比例增加。这些结果表明，MPB掺入是设计多功能环氧树脂的一种简单有效的方法，从而促进了其在各种领域的工业应用。

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来源期刊

International Journal of Polymer Science POLYMER SCIENCE-

CiteScore

6.10

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The International Journal of Polymer Science is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles on the chemistry and physics of macromolecules.