Study of the structure and properties of adhesives and compounds based on epoxy urethane oligomers synthesized from polyesters

IF 2.8 4区工程技术 Q2 POLYMER SCIENCE

Macromolecular Research Pub Date : 2024-06-03 DOI:10.1007/s13233-024-00279-1

Alexey Slobodinyuk, Dmitriy Kiselkov, Maria Cherepanova, Daria Slobodinyuk

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Abstract

The goal of present work is to create a polymer base for compounds, binders for materials with different fillers and adhesives. The article presents the results of studies of the physical and mechanical characteristics of urethane-containing elastomers based on epoxy urethane oligomers. The reaction proceeded in two stages and included the formation of oligodiisocyanate. Based on them, elastomers with urethane-hydroxyl hard segments were synthesized. Methyl nadic anhydride and an oligodiendiol with terminal carboxyl groups were used as hardeners. The deformation-strength properties of elastomers, as well as the strength of the adhesive joints for aluminum and steel, were studied. Using an oligomer with carboxyl groups as a hardener lowers the glass transition temperature of elastomers and improves their deformation characteristics. The glass transition temperature of the samples was determined using a differential scanning calorimeter. The physical and mechanical tensile characteristics of the obtained materials were determined on a universal testing machine. Elastomers cured with an oligomer containing carboxyl groups can be used as a polymer base for compounds and binders for materials with different kinds of fillers due to their low modulus and high deformation properties. Elastomers cured with methyl nadic anhydride may find use as adhesives.

Graphical abstract

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研究基于聚酯合成的环氧聚氨酯低聚物的粘合剂和化合物的结构与性能

当前工作的目标是为化合物、含有不同填料和粘合剂的材料的粘合剂创造一种聚合物基础。文章介绍了基于环氧聚氨酯低聚物的含聚氨酯弹性体的物理和机械特性的研究结果。反应分两个阶段进行，包括形成低聚二异氰酸酯。在此基础上，合成了具有氨基甲酸乙酯羟基硬段的弹性体。甲基纳迪酸酐和带有末端羧基的低聚二元醇被用作固化剂。研究了弹性体的变形强度特性以及铝和钢的粘接强度。使用带有羧基的低聚物作为固化剂可降低弹性体的玻璃化转变温度，并改善其变形特性。使用差示扫描量热仪测定了样品的玻璃化转变温度。在万能试验机上测定了所得材料的物理和机械拉伸特性。用含有羧基的低聚物固化的弹性体由于具有低模量和高变形特性，可用作化合物的聚合物基料和含有不同种类填料的材料的粘合剂。用甲基纳迪酸酐固化的弹性体可用作粘合剂。

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来源期刊

Macromolecular Research 工程技术-高分子科学

CiteScore

4.70

自引率

8.30%

发文量

100

审稿时长

1.3 months

期刊介绍： Original research on all aspects of polymer science, engineering and technology, including nanotechnology Presents original research articles on all aspects of polymer science, engineering and technology Coverage extends to such topics as nanotechnology, biotechnology and information technology The English-language journal of the Polymer Society of Korea Macromolecular Research is a scientific journal published monthly by the Polymer Society of Korea. Macromolecular Research publishes original researches on all aspects of polymer science, engineering, and technology as well as new emerging technologies using polymeric materials including nanotechnology, biotechnology, and information technology in forms of Articles, Communications, Notes, Reviews, and Feature articles.