The Effects of Epoxidised Natural Rubber (ENR-50) on Cure Characteristics and Tensile Properties of Recycled Natural Rubber Catheter Filled Ethylene Propylene Diene Monomer (EPDM) Vulcanizates

The effect of epoxidised natural rubber (ENR-50) on cure characteristics and tensile properties (tensile strength, modulus at 100% elongation and elongation at break) of recycled natural rubber catheter filled ethylene propylene diene monomer (EPDM) vulcanizates were studied. The scorch time, t2 of...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2020-10, Vol.957 (1), p.12007
Main Authors: Zakaria, Muhammad Salihin, Zulkepli, Nik Noriman, Nordin, Razif Muhammed, Halim, Khairul Anwar Abdul, Hanafi, Hafizuddin
Format: Article
Language:English
Subjects:
Catheters
Compatibility
Elongation
Ethylene
Mixtures
Modulus of elasticity
Monomers
Natural rubber
Propylene
Rubber
Tensile properties
Tensile strength
Torque
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Summary:The effect of epoxidised natural rubber (ENR-50) on cure characteristics and tensile properties (tensile strength, modulus at 100% elongation and elongation at break) of recycled natural rubber catheter filled ethylene propylene diene monomer (EPDM) vulcanizates were studied. The scorch time, t2 of EPDM/NRr blends with and without ENR-50 increased as NRr content increased while the cure time, t90 is decreased. However, with the presence of ENR-50 in EPDM/NRr blends, the t2 was longer and t90 was shorter than the uncompatibilized EPDM/NRr blends. The minimum torque, ML, of EPDM/NRr blend with and without ENR-50 relatively increased while maximum torque, MH, decreased with increasing NRr content. With the presence of ENR-50, the compatibilized EPDM/NRr blends exhibit a lower value of ML and MH compared with uncompatibilized blends. The incorporation of ENR-50 in EPDM/NRr blends enhanced the tensile strength and tensile modulus of compatibilized EPDM/NRr blends compared to uncompatibilized EPDM/NRr blends. The elongation at break (Eb) of compatibilized EPDM/NRr blends is lower than the uncompatibilized EPDM/NRr blends at all blend ratios. This indicated that ENR 50 improved the curing characteristics and tensile properties of the compound.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/957/1/012007