Use of epoxidized cotton seed il for obtaining ecological thermosetting resins

Autores UPV
Año
CONGRESO Use of epoxidized cotton seed il for obtaining ecological thermosetting resins

Abstract

The rise in prices and oil shortage is an aspect of great importance in the plastics industry. Epoxidized vegetable oils can be the solution to the continuous rise in oil prices. The epoxides can be used, for example, as plasticizers for PVC, as stabilizers for plastics and coatings, or as thermosetting resins for composites. The base vegetable oil used for epoxidation in this study was cotton seed oil (CSO). Epoxidized cotton seed oil (ECSO) has been successfully obtained using a conventional epoxidation process with hydrogen peroxide. The epoxidized oil has been cross-linked with mixtures of two cyclic anhydrides: dodecenylsuccinic anhydride (DDSA) and methyl nadic anhydride (MNA). The influence of the hardener mixture on the thermosetting resins with different DDSA-MNA mixtures and the same curing cycle has been followed by flexural test and scanning electron microscopy (SEM) of fractured surfaces from impact tests. By selecting the appropriate hardener ratio, it is possible to obtain materials with mechanical properties varying between 151.19 and 38.95 MPa for MNA and DDSA, respectively.