Halloysite nanotube (HNT) is an economically viable two-layered aluminosilicate with a predominantly hollow tubular structure in the submicron range. The size of halloysite particles varies within 1-1.5 μm in length and 10-15 nm of inner diameter. Due to its high aspect ratio (L/D ~ 30), it gives a large amount of filler-polymer interactions compared to spherical nanoparticles improving mechanical and thermal properties of the polymeric composites. Loading these tube lumens with antioxidant and doping them at 30-50 % into rubber allows for controlled sustained release halloysite nanotube openings, increasing the amount of antioxidant used in the rubber composite. The sustained release of antioxidant can avoid the blooming caused by the high antioxidant content in rubber.