Preparation and Studies of Nitrile Rubber nanocomposites with MMT nanoparticles By Ankit Yadav (1318987505)Under the supervision OfMr. R. M. Mishra Dr. K. N. Pandey (Deputy Director) (R & D Co-ordinator)

CENTRAL INSTITUTE OF PLASTICS ENGINEERING &TECHNOLOGY, LUCKNOW (UTTAR PRADESH)Affiliated toUttar Pradesh Technical UniversityLUCKNOW

Outline1-Introduction

2-Objectives

3-Work Plan/Methodology

4-Literature Survey

5-Experimental

6-References

Introduction

Polymer nanocomposites are materials with polymers as the matrix phase with a small addition of nanoparticles acting as reinforcement. These materials have drawn a great deal of interest in recent years because they possess high potential of achieving great property improvement. These are lightweight materials and have been widely used in various applications such as defence, high performance engineering plastics, and automotive.

Objective To develop the Nitrile rubber/MMT nanocomposite and to study the thermal stability, Flammability and mechanical properties of developed nanocomposites.

The nitrile rubber /MMT clay nanocomposites were prepared by latex blending method followed by melt mixing of compounding ingredients by using two-roll mill.

The rubber was cross-linked by means of dicumyl peroxide (DCP) in the presence of zinc oxide (Zno).

Work Plan In the present work, Nitrile rubber take and mixed MMT nanoclay with different wt. ratio will be taken for developing nano composite material industrial application.

Table-Sample codes and compounding formulation. [1]

Sample codesNitrile rubberMMT(phr)DCP A 100 1 4 B 100 3 4 C 100 5 4 D 100 7 4

Literature Survey1. Thermal properties and ammability of nanocomposites based on nitrile rubbers And activated halloysite nanotubes and carbon nanofibers.Article history:Received 21 March 2012, in revised from 13 August 2012Accepted 8 September 2012Available online 18 September 2012.

In this paper a study has been done directed to explore the advantages of Nitrile rubber MMT nanocomposites for electrical insulation applications. Mechanical properties such as tensile strength and elongation at break were tested. Thermo gravimetric analysis was carried out to analyse the thermal stability of the nanocomposites. Thermal stability, fire hazard, volume and surface resistivity of the nanocomposites were also measured.

Cont.2. Preparation and properties of nitrile rubber/montmorillonitenanocomposites via latex blending Received: 10 March 2005 / Accepted: 2 December 2005 / Published online: 19 September 2006 In this paper a study has been done directed to explore the advantages of Nitrile rubber OMMT nanocomposites for outstanding mechanical applications. The development of polymeric nanocomposites is an interesting area in advanced research.The properties of polymers like chemical and fluid resistance, flame retardency, high mechanical strength to weight ratio make them suitable for mechanical industries. Nitrile rubber is the lead polymer currently used automobile industry. The results obtained for various properties indicate that the Nitrile rubber nanocomposites have improved mechanical, thermal and dielectric properties.

Experimental

S.No.MATERIAL USED IN PROJECT WORK1MATERIAL SUPPLIERGRADEDENSITY (gm./cm3)Specific gravityNitrile rubber Petrochemical Korea2255V-0.94

2DCPSigma Aldrich, USAC18H22021.56-

3MATERIAL SUPPLIERGRADEBULK DENSITY (Kg/m3)SIZEMontmorillonite (MMT), NanoclaySigma Aldrich , USANanomer 1.31 PS200-500>20 micronSurface modified with aminopropyl triethoxy silane as coupling agent

Preparation of nanocomposites

Rubber compounds were prepared in an open two-rollmill. The compounding ingredients (zinc oxide 5 phr;stearic acid 3 phr; sulfur 2 phr; and accelerator (NS),1 phr) were added to the elastomer after the incorporationof the clay and the accelerator was added at theend of mixing. The compounds are denoted NBR-Mand NBR-OM for MMT- and OMMT-lled compounds,respectively. The loading of ller is also indicatedin the compound notation. The compoundswere cured at 160 C in a heated press (Carver, Wabash,IN) under a pressure of 5 MPa for the optimumcure time, which was determined from a curemeter(ODR-2000, Alpha Technology, Akron, OH), to make arubber sheet for mechanical testing.

Properties EvaluationThe sample will characterize by the techniques

Mechanical Tensile , Hardness

Differential Scanning Calorimeter (DSC)

Thermo gravimetric Analysis (TGA)

Scanning Electron Microscopy (SEM)

X-Ray Diffraction (XRD)

Refrences1. Lopattananon N., Jitkalong D. and Seadan M., Hybridized Reinforcement of Natural Rubber with Silane-Modified Short Cellulose Fibers and Silica Journal of Applied Polymer Science, 120, 32423254 (2011).2. P. Verge, S. Peeterbroeck, L. Bonnaud, and P. Dubois, Investigation on the dispersion of carbon nanotubes in nitrile butadiene rubber: Role of polymer-to-filler grafting reaction, Compos. Sci. Technol., vol. 70, pp. 1453-1459, 2010. 3. M. Ali Raza, A. Westwood, C. Stirling, R. Brydson, and N. Hondow, Effect of nanosized carbon black on the morphology, transport, and mechanical properties of rubbery epoxy and silicone composites, J Appl Polym Sci, vol. 126, pp. 641-652, 2012. 4. P. S. Thomas, A. A. Abdullateef, M. A. Al-Harthi, A. A. Basfar, S. Bandyopadhyay, M. A. Atieh, and S. K. De, Effect of phenol functionalization of carbon nanotubes on properties of nitrile rubber nanocomposites, J Appl Polym Sci, vol. 124, pp. 2370-2376, 2011.

5. S. Sagar, N. Iqbal, A. Maqsood, and U. Javaid, Thermogravimetric, differential scanning calorimetric and experimental thermal transport study of MWCNT/NBR nanocomposites, J. Therm. Anal. Calorim., pp. 1-7, 2013.6. R. Rajasekar, K. Pal, G. Heinrich, A. Das, and C. Das, Development of nitrile butadiene rubber-nanoclay composites with epoxidized natural rubber as compatibilizer, Mater Design, vol. 30, pp. 3839- 3845, 2009.

Thank you!