Halloysite nanotubes (HNTs) have been used as a new type of filler for acrylonitrile–butadiene rubber (NBR) matrix. The NBR/HNT nanocomposites were prepared using a two-roll mill by adding 0–7 parts per hundred rubber (phr) HNTs, and the effect of the loading of HNTs on the curing behavior, mechanical, and microstructural properties were also investigated in this study. The cure characteristics showed that the cure time (t90) and scorch time (ts2) decreased, whereas the maximum torque (MH) exhibited an increasing trend from 0 to 7 phr. The tensile properties improved until optimum loading of HNTs (5 phr) and thermal stability increased with increasing HNT loading. The morphological study revealed the HNTs homogeneously dispersed inside the NBR matrix and good interaction occurred between HNTs and NBR.
RoojSDasAThakurVMahalingRNBhowmickAKHeinrichG. Preparation and properties of natural nanocomposites based on natural rubber and naturally occurring halloysite nanotubes. Mater Des2010; 31: 2151–2156.
5.
KimJTOhTSLeeDH. Preparation and characteristics of nitrile rubber (NBR) nanocomposites based on organophilic layered clay. Polym Int2003; 52: 1053–1063.
6.
RajasekarRPalKHeinrichGDasADasCK. Development of nitrile butadiene rubber–nanoclay composites with epoxidized natural rubber as compatibilizer. Mater Des2009; 30: 3839–3845.
7.
HanMKimHKimE. Nanocomposites prepared from acrylonitrile–butadiene rubber and organically modified montmorillonite with vinyl groups. Nanotechnology2006; 17: 403–409.
8.
SadhuSBhowmickAK. Preparation and properties of nanocomposites based on acrylonitrile–butadiene rubber, styrene–butadiene rubber, polybutadiene rubber. Polym Phys2004; 42: 1573–1585.
9.
HwangWWeiKWuC. Mechanical, thermal, and barrier properties of NBR/organosilicate nanocomposites. Polym Eng Sci2004; 44(11): 2117–2124.
10.
WuYPJiaQXYuDSZhangLQ. Structure and properties of nitrile rubber (NBR)–clay nanocomposites by co-coagulating NBR latex and clay aqueous suspension. J Appl Polym Sci2003; 89: 3855–3858.
11.
AlexandreMDuboisP. Polymer-layered silicate nanocomposites: preparation, properties and uses of a new class of materials. Mater Sci Eng2000; 28: 1–63.
YeYChenHWuJYeL. High impact strength epoxy nanocomposites with natural nanotubes. Polymer2007; 48: 6426–6433.
14.
FischerJE.Carbon nanotubes: structure and properties. In: Nanotubes and nanofibers volume 2 of advanced materials series. New York, NY: CRC Taylor & Francis, 2006, pp. 1–35.
15.
GozdiffM.Specialty elastomers: acrylonitrile butadiene rubber. In: Rubber technology: compounding and testing for performance. Munich, German: Hanser Publisher, 2001, pp. 193–203.
IsmailHPasbakhshPAhmad FauziMNAbu BakarA. The effect of halloysite nanotubes as a novel nanofiller on curing behaviour, mechanical and microstructural properties of ethylene propylene diene monomer (EPDM) nanocomposites. Polym Plast Technol Eng2009; 48: 313–323.
19.
Berthier P. Analayse de I'halloysite. Annalese de chimie et Physique 1826;32: 332–335.
20.
PasbakhshPIsmailHAhmad FauziMNAbu BakarA. The partial replacement of silica or calcium carbonate by halloysite nanotubes as fillers in ethylene propylene diene monomer composites. J Appl Polym Sci2009; 113: 3910–3919.
LeiYTangZZhuLGuoBJiaD. Functional thiol ionic liquids as novel interfacial modifiers in SBR/HNTs composites. Polymer2011; 52: 1337–1344.
23.
KimJTOhTSLeeDYLeeDH. Characteristics of nitrile–butadiene rubber layered silicate nanocomposites with silane coupling agent. J Appl Polym Sci2003b; 89: 2633–2640.
24.
ZulkepliNNIsmailHRashidA. Effects of different particle sizes of recycled acrylonitrile–butadiene rubber and its blend ratios on mechanical and morphological properties and curing characteristics of SBR/NBRr blends. Iran Polym J2009; 18(2): 139–148.
25.
LikozarBMajorZ. Morphology, mechanical, cross-linking, thermal, and tribological properties of nitrile and hydrogenated nitrile rubber/multi-walled carbon nanotubes composites prepared by melt compounding: the effect of acrylonitrile content and hydrogenation. Appl Surf Sci2010; 257: 565–573.
26.
YueDLiuYShenZ. Study on preparation and properties of carbon nanotubes/rubber composites. J Mater Sci2006; 41: 2541–2544.
27.
FaghihiMShojaeiA. Properties of alumina nanoparticle-filled nitrile–butadiene-rubber/phenolic-resin blend prepared by melt mixing. Polym Compos2009; 30: 1290–1298.
28.
DuMGuoBJiaD. Newly emerging applications of halloysite nanotubes: a review. Polym Int2010; 59: 574–582.
29.
IsmailHShaariSM. Curing characteristics, tensile properties and morphology of palm ash/halloysite nanotubes/ethylene–propylene–diene monomer (EPDM) hybrid composites. Polym Test2010; 29: 872–878.
30.
DuMGuoBJiaD. Thermal stability and flame retardant effects of halloysite nanotubes on poly(propylene). Eur Polym J2006; 42: 1362–1369.
31.
VergePPeeterbroeckSBonnaudLDuboisP. Investigation on the dispersion of carbon nanotubes in nitrile butadiene rubber: role of polymer-to-filler grafting reaction. Compos Sci Technol2010; 70: 1453–1459.
