Structure-property relationship of melt intercalated maleated polyethylene nanocomposites

M. M. Reddy; Rahul K. Gupta; S. N. Bhattacharya; R. Parthasarathy

Korea-Australia Rheology Journal, Vol.19, No.3, 133-139, November, 2007

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Structure-property relationship of melt intercalated maleated polyethylene nanocomposites

M. M. Reddy, Rahul K. Gupta, S. N. Bhattacharya, and R. Parthasarathy^†

Rheology and Materials Processing Centre, School of Civil, Environmental and Chemical Engineering, RMIT University, Melbourne, Victoria 3001, Australia

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Low density polyethylene nanocomposites were prepared by melt intercalating maleic anhydride grafted polyethylene and montmorillonite clay. It has been found that maleic anhydride has promoted strong interactions between polyethylene and montmorillonite, leading to the homogeneous dispersion of clay layers. Rheological experiments revealed that prepared nanocomposites exhibited shear thinning behaviour. Polyethylene nanocomposites exhibited an increase in steady shear viscosities compared to virgin polyethylene owing to strong polymer clay interactions. The tensile strength of nanocomposites was improved but elongation at break decreased considerably. Also, barrier properties improved significantly with montmorillonite content.

Keywords:Polyethylene (PE);nanocomposoites;melt intercalation;morphology;shear viscosity

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[1] Alexandre M, Dubois P, Mater. Sci. Eng., 28(1-2), 1 (2000)

[2] Alexandre M, Dubois P, Sun T, Garces JM, Jerome R, Polymer, 43(8), 2123 (2002)

[3] Chodak I, Krupa I, J. Mater. Sci. Lett., 18(18), 1457 (1999)

[4] Gilman JW, Kashiwagi T, Brown JET, Lomakin S, Giannelis EP, Manias E, Materials and process affordability-Keys to the future, 1, 1053 (1998)

[5] Gopakumar TG, Lee JA, Kontopoulou M, Parent JS, Polymer, 43(20), 5483 (2002)

[6] Gupta RK, Pasanovic-Zujo V, Bhattacharya SN, J. Non-Newton. Fluid Mech., 128, 116 (2006)

[7] Hotta S, Paul DR, Polymer, 45(22), 7639 (2004)

[8] Jacquelot E, Espuche E, Gerard JF, Duchet J, Mazabraud P, J. Polym. Sci. B: Polym. Phys., 44(2), 431 (2006)

[9] Ji XL, Jing JK, Jiang W, Jiang BZ, Polym. Eng. Sci., 42(5), 983 (2002)

[10] Liang G, Xu J, Bao S, Xu W, J. Appl. Polym. Sci., 91(6), 3974 (2004)

[11] Morgan AB, Gilman JW, J. Appl. Polym. Sci., 87(8), 1329 (2003)

[12] Osman MA, Rupp JEP, Macromol. Rapid Commun., 26(11), 880 (2005)

[13] Pasanovic-Zujo V, Gupta RK, Bhattacharya SN, Rheol. Acta, 43(2), 99 (2004)

[14] Sinha Ray S, Okamoto M, Prog. Polym. Sci, 28(11), 1539 (2003)

[15] Sinha Ray S, Yamada K, Okamoto M, Ogami A, Ueda K, Chem. Mater., 15, 1456 (2003)

[16] Tidjani A, Wilkie CA, Polym. Degrad. Stabil., 74, 33 (2001)

[17] Wang KH, Choi MH, Koo CM, Choi YS, Chung IJ, Polymer, 42(24), 9819 (2001)

[18] Wang KH, Choi MH, Koo CM, Xu MZ, Chung IJ, Jang MC, Choi SW, Song HH, J. Polym. Sci. B: Polym. Phys., 40(14), 1454 (2002)

[19] Xie YC, Yu DM, Kong J, Fan XD, Qiao WQ, J. Appl. Polym. Sci., 100(5), 4004 (2006)