Abstract
One of the main disadvantages of epoxy resins is brittleness and flammability, which is one of the biggest threats and the reason for limiting advanced applications. In this study, Epikote 240 (EP) epoxy resin was plasticized with epoxidized flaxseed oil (ELO) at different concentrations (EP/ELO ratios 95/5; 90/10; 85/15; 80/20; 75/25). Then, nanoclay additives and MWCNTs are simultaneously dispersed into the EP/ELO blend by using ultrasonic vibration. The dispersion of ELO and nanoclay additives (nanoclay and MWCNTs) in epoxy resin is observed by using the scanning electron microscope in combination with the XRD method. The effect of ELO, nanoadditives on mechanical properties, and flame retardants is assessed by tensile strength, flexural strength, compressive strength, impact resistance, UL 94HB method, and limiting oxygen index. Experimental results have shown that the mixing ratio of 90/10 w/w is the ratio for good compatibility, high mechanical properties, and fire retardation compared with other ratios. When adding MWCNTs as well as nanoclay I.30E to Epikote 240 epoxy, the mechanical strength and fire resistance have changed greatly: tensile strength of 85.45 MPa, flexural strength of 116.32 MPa, compressive strength of 189.25 MPa, impact resistance Izod of 24.37 kJ/m2, and fire resistance reached at V1.
Highlights
Epoxy flaxseed oil is one of the biological polymers, and it is more advantageous compared with petroleum-based polymers, due to its eco-friendly nature and biodegradability.erefore, biopolymers are used to replace synthetic polymers derived from petroleum oil. e development of biodegradable polymers using “green materials” is important [1,2,3,4,5]
The flame retardants like antimony trioxide and chlorinated paraffins were combined with epoxy Epikote 240 resin/epoxidised linseed oil cured by diethylenetriamine (DETA) hardeners in order to increase the flammability and maintain the mechanical strength of this material. e combustion resistance and limiting oxygen index (LOI), UL 94 methods with transmission electron microscopy (FESEM), and XRD methods were used
We can conclude that the nano/epoxy/epoxidized flaxseed oil (ELO) composites with different contents of ELO have been successfully modulated by mechanical methods and ultrasonic vibrations
Summary
Epoxy flaxseed oil is one of the biological polymers, and it is more advantageous compared with petroleum-based polymers, due to its eco-friendly nature and biodegradability. Alam et al reported the study on adding ELO into polylactic acid (PLA) with presence of MWCNTs to decrease Tg and improved the mechanical properties of materials In this study, such various amounts of ELO as 5, 10, and 15% by weight were used and the decrease of Tg as well as the increase of the plasticity of PLA were proved. Studies on producing composite materials based on ELO with the presence of ELO are not enough, especially studies on fire-retardant properties and adding MWCNTs and nanoclay at the same time into epoxy resin. The flame retardants like antimony trioxide and chlorinated paraffins were combined with epoxy Epikote 240 resin/epoxidised linseed oil cured by diethylenetriamine (DETA) hardeners in order to increase the flammability and maintain the mechanical strength of this material. The flame retardants like antimony trioxide and chlorinated paraffins were combined with epoxy Epikote 240 resin/epoxidised linseed oil cured by diethylenetriamine (DETA) hardeners in order to increase the flammability and maintain the mechanical strength of this material. e combustion resistance and limiting oxygen index (LOI), UL 94 methods with transmission electron microscopy (FESEM), and XRD methods were used
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
