Biological And Chemical Properties of Cured Epoxy Resins

Introduction: Launched into production over 50 years ago, epoxy resins aroused enormous interest owing to their valuable properties that distinguish them from other polymeric materials. The investigation of biological and chemical effects of direct exposure to the materials under study on the human body may help in the organization of work when dealing with this type of materials. Objectives: The objective of this study is to investigate selected biological and chemical properties of 3 cured epoxy compounds: Epidian 53 epoxy resin with polyaminoamide C curing agent, Epidian 53 epoxy resin with polyaminoamide C curing agent, and aluminum powder, and Epidian 53 epoxy resin with polyaminoamide C curing agent, and copper powder. Methods: : The experimental part of this paper describes the preparation and fabrication of adhesive compound samples, from a liquid state to cured plates. The study involved a cytotoxicity analysis (with an ELSA reader), pH measurements (with a pH meter), absorbance measurement over an entire reference wavelength range, and sterilization (on a specially designed test bench) along with microscopic examination of its effects. Results: : Cytotoxicity and absorbance analysis results demonstrate that extracts of all tested resin samples do not have cytotoxic effect on the cells of living organisms. The absorbance results over the wavelength range do not indicate the formation of aggregations, which proves that no toxic agents harmful to living organisms are extracted from the resin samples. Conclusion: Results of this study demonstrate that cured epoxy resins are safe materials.