Mechanical, thermal, and conductivity performances of novel thermoplastic natural rubber/graphene nanoplates/polyaniline composites

Abstract

Conventional polymer blending has a shortcoming in conductivity characteristic. This research addresses the preparation of conductive thermoplastic natural rubber (TPNR) blends with graphene nanoplates (GNPs)/polyaniline (PANI) through melt blending using an internal mixer. The effect of PANI content (10, 20, 30, and 40 wt %) on the mechanical and thermal properties, thermal and electrical conductivities, and morphology observation of the TPNR/GNPs/PANI nanocomposites was investigated. The results showed that the tensile and impact properties as well as thermal conductivity of nanocomposite had improved with the incorporation of 3 wt % of GNPs and 20 wt % of PANI as compared to neat TPNR and reduced with further increase of the PANI content. It was observed that the GNPs and PANI acted as a critical component to improve the thermal stability and electrical conductivity of the TPNR/GNPs/PANI nanocomposites. The most improved conductivity of 5.22 E‐5 S/cm was observed at 3 wt % GNPs and 40 wt % PANI. Variable‐pressure scanning electron microscopy micrograph revealed the good interaction and distribution of GNPs and PANI within TPNR matrix at PANI loadings lower than 30 wt %. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48873.

Preparation of p-Phenylenediamine Modified Graphene Foam/Polyaniline@Epoxy Composite with Superior Thermal and EMI Shielding Performance

“…With the in-situ polymerization of PANI, the Er and the hardness of GF/PANI 5:1 @EP and GF/PANI 4:1 @EP shows a liner increase to 3.285 GPa, 0.114 GPa and 3.835 GPa, 0.158 GPa, respectively. The result indicates that the network formed by the PANI connection will strengthen the interaction between the GO sheet and the polymer matrix, leading to the increasing Er and hardness [ 40 ].…”

Gamma irradiation influence on mechanical, thermal and conductivity properties of hybrid carbon nanotubes/montmorillonite nanocomposites

“…The LNR has the same microstructure with NR but with short chain of polyisoprene (different in molecular weight, Mw) at around 50 000 in comparison to NR with Mw of 900 000. It has the functional groups such as –OH and –COOH that resulted from the modification of NR ( Tarawneh et al, 2020 ), which is expected to induce interaction between the rubber and plastic interphase and thereby increasing the homogeneity of the blend. Multi-walled carbon nanotubes (CNTs) produced via catalytic chemical vapor deposition with a purity of >95%, diameter >8 nm and length of 10–30 μm were provided by Arkema (GraphistrengthTM C100).…”

Ultraflexible and Mechanically Strong Polymer/Polyaniline Conductive Interpenetrating Nanocomposite via In Situ Polymerization of Vinyl Monomer

“…), into polymer matrix is a common approach to fabricate stretchable and conductive polymer composite. PANI has obtained increasing attention in recent decades owing to its unique functions such as simple synthesis, having a promising capability in conductivity, photoelectric properties [ 13 ], electrocatalytic activity [ 14 ], thermal stability [ 15 ], remarkable energy storage characteristics [ 16 ] and good environmental stability [ 17 ]. Therefore, it has been widely used in sensors [ 18 ], biosensors [ 19 ], biofuel cells [ 20 ] and electrochromic devices [ 21 ].…”