Publication: Investigation of aging and weathering on self-healing performance of natural rubber based on zinc thiolate ionic network
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Date
2024-08-01
Authors
Nurul Asyikin Binti Zainuddin
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Abstract
In this study, the effect of aging and weathering were investigated in the
presence of multi walled carbon nanotubes (MWCNT) content on the self-healing
rubber. In earlier research, the natural rubber (NR) added with zinc thiolate to form
self-healing rubber compound then these masterbatch then is mixed with other
ingredients. To investigate the aging and weathering behaviour on the self-healing
natural rubber, several tests would conduct under three different aging conditions
which is physical aging (creep test and fatigue test), heat aging test and accelerated
weathering test. In term of physical aging test, the result for the creep and fatigue test,
the result showed the strain and fatigue life for the self-healing rubber sample with
MWCNT content is higher compared to the strain of the self-healing sample without
MWCNT. In term of heat aging test where the sample placed into oven with different
temperature at different days. From the tensile test, the result showed the tensile
strength of the self-healing with MWCNT content higher compared to the tensile
strength of the self-healing without MWCNT before and after heat aging. In term of
accelerated weathering test, the self-healing was placed into the QUV machine at
different hours. From the tensile test, the result showed the tensile strength of the
self-healing with MWCNT content higher before and after accelerated weathering
compared to the tensile strength of the self-healing without MWCNT.