Nanocomposites of natural rubber and polyaniline-modified cellulose nanofibrils

Silva, Michael J.; Sanches, Adhemar; Medeiros, Eliton S.; Mattoso, Luiz H. C.; McMahan, Colleen; Malmonge, José Antônio

doi:10.1007/s10973-014-3719-1

Cited by 48 publications

(31 citation statements)

References 33 publications

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“…For example, natural rubber (NR) with 10 wt% polyaniline-coated cellulose nanofibrils could meet the demands for antistatic applications. In addition, the coating of polyaniline onto the fibrils enhanced the compatibility of the cellulose nanofibrils with the rubber matrix, leading to significant improvements in the overall performance of the nanocomposite [65].…”

Section: 1 Theoretical Considerations For Electrically Conductive mentioning

confidence: 99%

Transport performance in novel elastomer nanocomposites: Mechanism, design and control

Guo

Tang

Zhang

2016

Progress in Polymer Science

138

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Section: 1 Theoretical Considerations For Electrically Conductive mentioning

confidence: 99%

Transport performance in novel elastomer nanocomposites: Mechanism, design and control

Guo

Tang

Zhang

2016

Progress in Polymer Science

138

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“…A potential reinforcing agent for the latex rubbers is the derivatives of natural cellulose polymers [14][15][16][17][18][19]. These polymers are called carboxycellulose and have been widely used for biomedical applications such as surgical sutures [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Reinforcement of Natural Rubber Latex Using Jute Carboxycellulose Nanofibers Extracted Using Nitro-Oxidation Method

Sharma

Lin

et al. 2020

Nanomaterials

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Synthetic rubber produced from nonrenewable fossil fuel requires high energy costs and is dependent on the presumed unstable petroleum price. Natural rubber latex (NRL) is one of the major alternative sustainable rubber sources since it is derived from the plant ‘Hevea brasiliensis’. Our study focuses on integrating sustainably processed carboxycellulose nanofibers from untreated jute biomass into NRL to enhance the mechanical strength of the material for various applications. The carboxycellulose nanofibers (NOCNF) having carboxyl content of 0.94 mmol/g was prepared and integrated into its nonionic form (–COONa) for its higher dispersion in water to increase the interfacial interaction between NRL and NOCNF. Transmission electron microscopy (TEM) and atomic force microscopy (AFM) analyses of NOCNF showed the average dimensions of nanofibers were length (L) = 524 ± 203 nm, diameter (D) 7 ± 2 nm and thickness 2.9 nm. Furthermore, fourier transform infra-red spectrometry (FTIR) analysis of NOCNF depicted the presence of carboxyl group. However, the dynamic light scattering (DLS) measurement of NRL demonstrated an effective diameter in the range of 643 nm with polydispersity of 0.005. Tensile mechanical strengths were tested to observe the enhancement effects at various concentrations of NOCNF in the NRL. Mechanical properties of NRL/NOCNF films were determined by tensile testing, where the results showed an increasing trend of enhancement. With the increasing NOCNF concentration, the film modulus was found to increase quite substantially, but the elongation-to-break ratio decreased drastically. The presence of NOCNF changed the NRL film from elastic to brittle. However, at the NOCNF overlap concentration (0.2 wt. %), the film modulus seemed to be the highest.

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“…Typically, CPCs are prepared by adding conductive fillers, such as carbon black 1 , graphene 2 , carbon nanotube 3 , metal nanoparticles 4 and intrinsically conductive polymers [5][6][7][8][9][10][11] , to polymer matrices. The widely used fabrication methods of CPCs are based on melt-blending 1 , solution mixing 4 and in-situ polymerization 12 .…”

Section: Introductionmentioning

confidence: 99%

Biotemplate Synthesis of Polyaniline@Cellulose Nanowhiskers/Natural Rubber Nanocomposites with 3D Hierarchical Multiscale Structure and Improved Electrical Conductivity

et al. 2014

ACS Appl. Mater. Interfaces

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Development of novel and versatile strategies to construct conductive polymer composites with low percolation thresholds and high mechanical properties is of great importance. In this work, we report a facile and effective strategy to prepare polyaniline@cellulose nanowhiskers (PANI@CNs)/natural rubber (NR) nanocomposites with 3D hierarchical multiscale structure. Specifically, PANI was synthesized in situ on the surface of CNs biotemplate to form PANI@CNs nanohybrids with high aspect ratio and good dispersity. Then NR latex was introduced into PANI@CNs nanohybrids suspension to enable the self-assembly of PANI@CNs nanohybrids onto NR latex microspheres. During cocoagulation process, PANI@CNs nanohybrids selectively located in the interstitial space between NR microspheres and organized into a 3D hierarchical multiscale conductive network structure in NR matrix. The combination of the biotemplate synthesis of PANI and latex cocoagulation method significantly enhanced the electrical conductivity and mechanical properties of the NR-based nanocomposites simultaneously. The electrical conductivity of PANI@CNs/NR nanocomposites containing 5 phr PANI showed 11 orders of magnitude higher than that of the PANI/NR composites at the same loading fraction,; meanwhile, the percolation threshold was drastically decreased from 8.0 to 3.6 vol %.

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Nanocomposites of natural rubber and polyaniline-modified cellulose nanofibrils

Cited by 48 publications

References 33 publications

Transport performance in novel elastomer nanocomposites: Mechanism, design and control

Transport performance in novel elastomer nanocomposites: Mechanism, design and control

Reinforcement of Natural Rubber Latex Using Jute Carboxycellulose Nanofibers Extracted Using Nitro-Oxidation Method

Biotemplate Synthesis of Polyaniline@Cellulose Nanowhiskers/Natural Rubber Nanocomposites with 3D Hierarchical Multiscale Structure and Improved Electrical Conductivity

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