Abstract
Blends of linear low density polyethylene (LLDPE) ethylene-1-octene copolymers (EOC), with different 1-octene (OC) content, and ground rubber tire (GRT) were prepared by melt mixing in a twin screw extruder. Five different compositions of LLDPE/EOC/GRT blends were processed in the extruder to evaluate the effect of EOC addition to the LLDPE/GRT blends. The addition of EOC to LLDPE/GRT blends improves the mechanical properties. Besides, the replacement of 5% of GRT by EOC grades (OC = 20 or 30 wt %) in the 50/50 LLDPE/GRT blend, leads to a significant increase of ultimate tensile properties. The EOC comonomer content affects the properties of LLDPE/EOC and LLDPE/EOC/GRT blends. Dynamical-mechanical analyses showed that, with the addition of EOC to LLDPE/GRT blends, the Tg of GRT and the Tg of EOC are closer. This effect is more pronounced when the EOC with the highest content of comonomer (30 wt %) is added to LLDPE/GRT blend. In this case, only one peak related to the Tg of the rubber phase can be visualized in the amorphous region. These findings indicate that EOC may act as compatibilizer agent for LLDPE/GRT blends.
Highlights
Nowadays, there is a great concern over the matrix
The linear low density polyethylene (LLDPE) α-relaxation peak position shifts about 5 °C downwards and becomes closer to the Tg peak of Ground rubber tire (GRT). These findings suggest that the ENG 8480 and ENG 8003 may act as compatibilizer agents to LLDPE/GRT blends
The addition of 5 wt % of ethylene-1-octene copolymers (EOCs), ENG 8480 or ENG 8003 to the 50/45 LLDPE/GRT blend leads to a significant increasing of the ultimate tensile properties
Summary
There is a great concern over the matrix. Several approaches have been used in order toE environment protection and biodiversity conservation. improve the adhesion between GRT and the thermoplasticnew policies and techniques related to resin[2,4,5].energy conservation, substitution of materials obtainedGround rubber tire has been used for preparing from non-renewable sources and adequate solid waste thermoplastic elastomers (TPEs) and thermoplasticT management have been introduced in most countries. vulcanizates (TPVs). There is a great concern over the matrix. Several approaches have been used in order to. Improve the adhesion between GRT and the thermoplastic. New policies and techniques related to resin[2,4,5]. Ground rubber tire has been used for preparing from non-renewable sources and adequate solid waste thermoplastic elastomers (TPEs) and thermoplastic. There is a big amount of discarded tires every year in formation of thermoplastic elastomers is that the two the world. In order to maintain ecological balance, it is components must be thermodynamically incompatible, necessary to reduce the serious environmental problem but not so dissimilar that intermixing cannot be caused by waste rubber. In order to achieve this condition, one
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.
