Abstract
Abstract Epoxidized natural rubber (ENR) and synthetic non-modified hydrotalcite (HT) compounds were prepared and evaluated. Natural rubber (NR) was epoxidized with 20.6% of epoxy groups from a chemical modification of the latex. A sulfur-based curing system formulation with accelerators was used. The amounts of HT in the ENR-HT compositions was varied between 0, 2, 3 and 5 phr. All compositions were evaluated as to cure parameters, rheological properties, thermal resistance and crosslink density. The results showed that the mineral filler does not have a significant influence on the cure parameters. Different methods of crosslink density determination were used (swelling at equilibrium and elastic modulus). The results turn out to be equivalent and rise as the amount of filler is increased. The best results were found for the 5 phr hydrotalcite compound (ENR-HT5).
Highlights
Layered double hydroxides (LDH), known as anionic 2
High ammonia natural rubber latex (NRL) and 60% of dry hydrotalcite (Mg6Al2(OH)16CO3.4H2O) is an example of rubber content was supplied by Teadit
In this work hydrotalcite was studied in compositions of epoxidized natural rubber synthetized in our laboratory
Summary
Clays, are minerals having positively charged layers interleaved with ions and water molecules, so as to maintain neutrality 2.1 Materials of charge. Properties like lamellar structure, Ultranex 95 (ethoxilatednonylphenol), supplied by ease of synthesis and readily controllable particle size are Oxiteno, was used to stabilize NRL during the epoxidation characteristics that have attracted researchers to study LDH and their applications on polymers, especially elastomers[1]. Chemical modification of natural rubber, especially 95%, anhydrous sodium carbonate, toluene and chloroform, epoxidation reaction, is a versatile route to obtain a polymer all obtained from Sigma. With better properties comparative to unmodified natural rubber like oil and organic solvent resistance, air permeability 2.2 Methods and performance for wet roads (for tire applications)[5]. In this work hydrotalcite was studied in compositions of epoxidized natural rubber synthetized in our laboratory. Epoxidized natural rubber and hydrotalcite compounds: rheological and thermal characterization
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
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.
