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Abstract
Nanomaterials have engaged response from the scientific world in recent decades due to their exceptional physical and chemical properties counter to their bulk. They have been widely used in a polymer matrix to improve mechanical, thermal, barrier, electronic and chemical properties. In rubber nanocomposites, nanofillers dispersion and the interfacial adhesion between polymer and fillers influences the composites factual properties. In the present work, a comparison of the hybrid effects of carbon black with two different nanofillers (graphene oxide and nanoclay) was studied. The 70/30 composition of chlorobutyl rubber/natural rubber elastomer blend was taken as per the blend composition optimized from our previous studies. The hybrid effects of graphene oxide and nanoclay in dispersing the nanofillers were studied mainly by analyzing nanocomposite barrier properties. The results confirm that the combined effect of carbon black with graphene oxide and nanoclay could create hybrid effects in decreasing the gas permeability. The prepared nanocomposites which partially replace the expensive chlorobutyl rubber can be used for tyre inner liner application. Additionally, the reduction in the amount of carbon black in the nanocomposite can be an added advantage of considering the environmental and economic factors.
Highlights
Ever since the popularity of nanotechnology has grown in recent decades, nanomaterials have been widely used as a reinforcing agent in a polymer matrix to improve the overall properties of polymer composites [1]
We have studied the effect of nanofiller (NF) dispersion in rubber matrix with various amounts of graphene oxide (GO) and nanoclay
CIIR/natural rubber (NR) blend was prepared at 70/30 composition and the effect of hybrid filler was CIIR/NR blend was prepared at 70/30 composition and the effect of hybrid filler was studied using carbon black (CB)/NC, as well as CB/GO
Summary
Ever since the popularity of nanotechnology has grown in recent decades, nanomaterials have been widely used as a reinforcing agent in a polymer matrix to improve the overall properties of polymer composites [1]. Natural rubber (caoutchouc) is organic latex which is extensively used in many industries due to its unique chemical and mechanical properties. Natural rubber is widely exploited by tyre industries because it improves their excellent mechanical properties upon vulcanizing. Chlorobutyl rubber (CIIR) is an isobutylene-isoprene copolymer which is used to make tyre inner liners and gas masks due to its low gas permeability [5,6]. It has been reported that a blend of chlorobutyl rubber and natural rubber (NR) can significantly
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