Elastomer-based nanocomposites(EcNs) were prepared with a novel mixing method to determine the deformation properties under constant amplitude dynamic operating conditions. The fillers of EcNs consists of functionalized(M-FCNTs) and nonfunctionalized carbon-nanotubes(M-NCNTs), graphite(GF) and carbon black(CB). In this study, six different mixtures were prepared using M-FCNT, and M-NCNT fillers in 1, 2, 3 phr ratios, except for a CB-filled reference mixture(C00). Graphite, which has exfoliation and excellent lubricating properties1, was added to six mixtures at the rate of 1 phr to prevent agglomeration of M-CNTs in the mixtures. SEM images show that M-CNTs are homogeneously distributed, interacting strongly with GF, and M-FCNTs have a better interface interaction than M-NCNTs. During crosslinking of M-NCNT filled EcNs, due to the resistance in the direction of the polymer chain's movement, the difference between minimum torque and maximum torque increased by approximately 10% compared to M-FCNTs. The lost energy (ΔW) between the loading and unloading curves of M-NCNT filled EcNs increased compared to the M-FCNT filled mixtures and C00. The resistance properties depending on the samples' strain value showed a more stable and repetitive behavior in M-FCNT filled EcNs with a ratio of 1 and 2 phr, called F-C01 and F-C02, respectively. The semiconductor F-C01 sample showed the most stable behavior due to preserving the conductive filler network's structural order during the fatigue test, although the average resistance change was highest with 1.51E + 07 Ω. We discuss ways to use conductive elastomer composites as an effective deformation detection sensor in dynamic applications based on the results.
LeeJYKumarVTangXW, et al. Mechanical and electrical behavior of rubber nanocomposites under static and cyclic strain. Compos Sci Technol2017; 142: 1–9.
2.
GiffneyTBejaninEKurianAS, et al. Highly stretchable printed strain sensors using multi-walled carbon nanotube/silicone rubber composites. Sensors Actuators A: Phys2017; 259: 44–49.
3.
BokobzaLBelinC.Effect of strain on the properties of a styrene–butadiene rubber filled with multiwall carbon nanotubes. J Appl Polym Sci2007; 105: 2054–2061.
DasAStöckelhuberKWJurkR, et al. Modified and unmodified multiwalled carbon nanotubes in high performance solution-styrene–butadiene and butadiene rubber blends. Polymer2008; 49: 5276–5283.
10.
NingDChengDYangJ, et al. New insight on the interfacial interaction between multiwalled carbon nanotubes and elastomers. Compos Sci Technol2017; 142: 214–220.
11.
GeorgeNJulie ChandraCSMathiazhaganA, et al. High performance natural rubber composites with conductive segregated network of multiwalled carbon nanotubes. Compos Sci Technol2015; 116: 33–40.
12.
KuesengPSae-OuiPSirisinhaC, et al. Anisotropic studies of multi-wall carbon nanotube (MWCNT)-filled natural rubber (NR) and nitrile rubber (NBR) blends. Polymer Testing2013; 32: 1229–1236.
13.
DongBLiuCLuY, et al. Effects of hybrid filler networks of carbon nanotubes and carbon black on fracture resistance of styrene‐butadiene rubber composites. Polym Eng Sci2016; 56: 1425–1431.
14.
RochAGreifzuMTalensER, et al. Ambient effects on the electrical conductivity of carbon nanotubes. Carbon2015; 95: 347–353.
15.
LiFLuYLiuL, et al. Relations between carbon nanotubes' length and their composites' mechanical and functional performance. Polymer2013; 54: 2158–2165.
16.
PerezLDZuluagaMAKyuT, et al. Preparation, characterization, and physical properties of multiwall carbon nanotube/elastomer composites. Polym Eng Sci2009; 49: 866–874.
CooperCAYoungRJHalsallM.Investigation into the deformation of carbon nanotubes and their composites through the use of Raman spectroscopy. Compos Part A: Appl Sci Manuf2001; 32: 401–411.
19.
19. BokobzaL.Vibrational spectroscopic and mechanical investigation of carbon nanotube-reinforced styrene-butadiene rubbers. Macromol Symp2011; 305: 1–9.
20.
BokobzaL.Multiwall carbon nanotube elastomeric composites: a review. Polymer2007; 48: 4907–4920.
21.
JoseTMoniGSaliniS, et al. Multifunctional multi-walled carbon nanotube reinforced natural rubber nanocomposites.. Ind Crops Products2017; 105: 63–73.
22.
WangDFujinamiSNakajimaK, et al. Production of a cellular structure in carbon nanotube/natural rubber composites revealed by nanomechanical mapping. Carbon2010; 48: 3708–3714.
23.
SalaehSThitithammawongASalaeA.Highly enhanced electrical and mechanical properties of methyl methacrylate modified natural rubber filled with multiwalled carbon nanotubes. Polym Test2020; 85: 106417.
24.
PeddiniSKBosnyakCPHendersonNM, et al. Nanocomposites from styreneebutadiene rubber (SBR) and multiwall carbon nanotubes (MWCNT) part 2: mechanical properties. Polymer2015; 56: 443–451.
25.
AhmadiMShojaeiA.Reinforcing mechanisms of carbon nanotubes and high structure carbon black in natural rubber/styrene-butadiene rubber blend prepared by mechanicalmixing – effect of bound rubber. Polym Int2015; 64: 1627–1638.
26.
HemkaewKDechwayukulCAiyarakP, et al. Batching method and effects formulation and mechanical loading on electrical conductivity of natural rubber composites filled with multi-wall carbon nanotube and carbon black. Digest J Nanomater Biostruct2015; 10: 883–893.
27.
XieXLMaiYWZhouXP.Dispersion and alignment of carbon nanotubes in polymer matrix: a review. Mater Sci Eng Rep2005; 49: 89–112.
28.
CuiLJWangYBXiuWJ, et al. Effect of functionalization of multi-walled carbon nanotube on the curing behavior and mechanical property of multi-walled carbon nanotube/epoxy composites. Mater Des2013; 49: 279–284.
29.
KatihabwaAWangWJiangY, et al. Multi-walled carbon nanotubes/silicone rubber nanocomposites prepared by high shear mechanical mixing. J Reinf Plast Compos2011; 30: 1007–1014.
30.
ChuayjuljitSMungmeechaiPBoonmahitthisudA.Mechanical properties, thermal behaviors and oil resistance of epoxidized natural rubber/multiwalled carbon nanotube nanocomposites prepared via in situ epoxidation. J Elastomer Plast2017; 49: 99–119.
31.
KuesengPSae-OuiPRattanasomN.Mechanical and electrical properties of natural rubber and nitrile rubber blends filled with multi-wall carbon nanotube: effect of preparation methods. Polym Test2013; 32: 731–738.
32.
Oliva-AvilesAIAvilesFSosaV.Electrical and piezoresistive properties of multi-walled carbon nanotube/polymer composite films aligned by an electric field. Carbon2011; 49: 2989–2997.
33.
AyatollahiMRShadlouSShokriehMM, et al. Effect of multi-walled carbon nanotube aspect ratio on mechanical and electrical properties of epoxy-based nanocomposites. Polym Test2011; 30: 548–556.
34.
Ivanoska-DacikjABogoeva-GacevaGValicS, et al. Benefits of hybrid nano-filler networking between organically modified montmorillonite and carbon nanotubes in natural rubber: Experiments and theoretical interpretations. Appl Clay Sci2017; 136: 192–198.
35.
İsmailHRamlyFOthmanN.Multiwall carbon nanotube-filled natural rubber: the effects of filler loading and mixing method. Polym-Plast Technol Eng2010; 49: 260–266.
36.
ShanmugharajABaeJLeeK, et al. Physical and chemical characteristics of multiwalled carbon nanotubes functionalized with aminosilane and its influence on the properties of natural rubber composites. Compos Sci Technol2007; 67: 1813–1822.
37.
FalcoADMarzoccaAJCorcueraMA, et al. Accelerator adsorption onto carbon nanotubes surface affects the vulcanization process of styrene_butadiene rubber composites. J Appl Polym Sci2009; 113: 2851–2857.
38.
Fakhru’l-RaziAAtiehMAGirunN, et al. Effect of multi-wall carbon nanotubes on the mechanical properties of natural rubber. Compos Struct2006; 75: 496–500.
39.
KasimHAldeenANYücelC, et al. Investigation of the crack propagation behavior of the multiwalled carbon nanotube/graphite/natural rubber hybrid nanocomposites using digital image correlation technique. J Nanoelectron Optoelectron2019; 14: 1766–1770.
40.
PiersonOH.Handbook of carbon, graphite, diamond and fullerenes, porperties, processing and applications. Norwich, NY: William Andrew Publishing, 1993, pp.43–69.
