Exploring the influence of co-monomer content in the dry crosslinked ethylene octene copolymer based blends

Abstract

This article illustrates the influence of co-monomer content in the ethylene octene copolymer (EOC) on the dry curing process of EOC:PDMS rubber blends. The EOC:PDMS blends were prepared by melt mixing in an internal mixer and crosslinked through electron beam radiation method. During electron beam irradiation both the EOC and PDMS phase gets crosslinked; which is evident from the gel content study. From the rheology analysis, it is understood that the EOC with high octene (comonomer) content has better radiation crosslinkability as compared with the EOC with low co-monomer content. Through radiation crosslinking, the physico-mechanical properties of the EOC:PDMS system was improved significantly. The tensile strength of high co-monomer content EOC:PDMS 70:30 blends were drastically improved by 49.5% on irradiation with a dosage of 75 kGy. Morphology study of the EOC:PDMS system were carried out by scanning electron microscopy (SEM) and correlated with the physico-mechanical properties.

A relative study of the effect of static and dynamic vulcanization upon shape memory nature of thermally actuated peroxide crosslinked polyolefinic blends

“…This is due to the destruction of the crystalline region in the presence of peroxide. [ 22,38 ] As a result melting transition of EPDM changes from 29.1°C for uncrosslinked blend to 24.7°C for statically vulcanized EO 50 EP 50 SV blend and to 20.3°C for dynamically vulcanized EO 50 EP 50 DV blend. Similarly melting transition of EOC becomes lower from 92.6°C for the uncrosslinked Blend to 91.3°C for the statically vulcanized one and to 87.3°C for the dynamically vulcanized blend.…”

Radiation effects on Kevlar fibers through high energy electron beam

“…[16][17][18][19] High-energy electron beams can ionize or excite a material, leading to the formation of free radicals and triggering reactions. [20][21][22][23] In this study, Kevlar fibers were irradiated at up to 2500 kGy using a 10 MeV electron accelerator in an air environment, and the radiation stability of the Kevlar fibers was evaluated by comprehensive analysis. This study offers fundamental data for the application of Kevlar fibers in extreme environments and their modifications.…”

“…Electron beam radiation technology has been widely used in many fields owing to its advantages of stability, energy savings, and lack of pollution 16–19 . High‐energy electron beams can ionize or excite a material, leading to the formation of free radicals and triggering reactions 20–23 . In this study, Kevlar fibers were irradiated at up to 2500 kGy using a 10 MeV electron accelerator in an air environment, and the radiation stability of the Kevlar fibers was evaluated by comprehensive analysis.…”

Using constrained mixture design method for optimizing the properties of organoclay filled ethylene-octene copolymer nanocomposites

“…EOCs show outstanding physical and mechanical properties such as resistance to solvents, high elongation at break, environmental resistance and dielectric properties. Therefore, they can be used in the form of blends and composites in a variety of applications [28].…”