Study of Chemical Composition and Some Material Properties for a Hybrid Resin Based on Dammar

Vlad Alexandru Georgeanu,Anca Alexandra Iordache Sabo,Ion Ciuca,Marius Marinel Stanescu,Dumitru Bolcu,Mihaela Bogdan

doi:10.37358/mp.21.1.5444

Abstract

The chemical composition of a hybrid resin made of natural Dammar resin and epoxy resin (along with the related hardener), in proportion of volume of 60 and 40%, respectively, was studied based on EDS analysis. The results of the study are presented in this paper. The presence of epoxy resin was necessary to generate a rapid polymerization process. The material details of the hybrid resin were investigated using SEM. A high-resolution image of a hybrid resin sample was obtained. The weight loss of the hybrid resin at certain temperature values using thermo gravimetric analysis was measured. In addition, the surface roughness of the hybrid resin was characterized using two methods. By the first method, the classical one, the roughness was measured using two profile parameters and five analysis lines, namely the functional dependence between the roughness height and the gray level of the analyzed surface image. By the second method, the average roughness method, the surface texture of a hybrid resin specimen was measured and the roughness profile was obtained as the difference between the primary profile and the middle line of the filter determined with the Gaussian profile filter. Finally, several possible areas of use of this type of resin have been proposed based on the properties obtained.

Highlights

Natural resins are a mixture of volatile aromatic chemicals and are produced by plants or animals
The roughness profile was obtained as the difference between the primary profile and the middle line of the filter determined with the Gaussian profile filter
From the diagram of the EDS analysis of a hybrid resin sample, it can be seen that oxygen has a significant share in its composition

Summary

Introduction

Natural resins are a mixture of volatile aromatic chemicals and are produced by plants or animals. In combination with certain organic solvents (turpentine, rosin) these resins form solutions that can be used as coating varnishes [1,2,3,4]. One solution to eliminate this drawback is to use hybrid resins obtained by combining several constituents, of which at least one is organic and at least one is synthetic [5]. One of the most used natural resins is Dammar. It is harvested from trees of the Dipterocarpaceae family in India and East Asia. The soil where these trees grow influences the appearance of macro and microelements in the chemical structure of Dammar resin, i.e. additional elements may appear such as: iron, silicon, zirconium, cadmium and so on

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Conclusion