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Naturally occurring halloysite nanotubes for enhanced durability of natural rubber/ethylene propylene diene monomer rubber vulcanizate

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1002/vnl.21856
AuthorSearch for: ; Search for: 1ORCID identifier: https://orcid.org/0000-0002-0611-4717; Search for: ; Search for: ; Search for: ORCID identifier: https://orcid.org/0000-0001-9055-6202; Search for:
Affiliation
  1. National Research Council Canada. Construction
FormatText, Article
Subjectdurability; dynamic properties; halloysite nanotubes; microstructure; ozone resistance; rubber nanocomposites
Abstract
A facile approach of using halloysite nanotubes (HNTs) was proposed to address the durability performance demands of natural rubber (NR)/ethylene propylene diene monomer rubber (EPDM) blends and to protect them from the deleterious effects of the service environment including ozone, chemicals, abrasion, and cyclic loading. The introduction of HNTs substantially improved the stability of NR/EPDM when exposed to ozone (over fourfold enhancement with the addition of 5 phr HNTs). Moreover, the HNT-filled NR/EPDM vulcanizates offered approximately 66% reduction in the solvent-mediated swelling in comparison to the unfilled sample. Fatigue life studies showed that the HNT-reinforced NR/EPDM composite could withstand 30% more cycles to failure than the un-reinforced NR/EPDM blend. The effect of various HNT loading on the morphological, mechanical, physical, and rheological properties of nanocomposite vulcanizates based on NR/EPDM was also investigated. The morphological investigations revealed that the introduction of HNT into the NR/EPDM rubber matrix caused a rough morphology in fracture surface and a well-dispersed structure was obtained with the addition of up to 5 phr of HNTs. These findings were further supported by rheological, mechanical, and thermodynamical results.
Publication date
PublisherWiley
Society of Plastics Engineers
In
  • Journal of Vinyl and Additive Technology 27, no. 4 (November 2021): 855–867.
LanguageEnglish
Peer reviewedYes
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Record identifier05fcad31-46b3-4dfe-a2fe-96abfc5793cc
Record created2023-01-27
Record modified2023-01-27
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