Melt miscibility and solid-state properties of metallocene LLDPE blends with HDPE: Influence of MM of LLDPE

Tayyab Hameed; Ibnelwaleed A. Hussein

doi:10.1007/s11771-007-0241-7

Journal of Central South University ›› 2007, Vol. 14 ›› Issue (Suppl 1) : 183 -187. DOI: 10.1007/s11771-007-0241-7

Article

Melt miscibility and solid-state properties of metallocene LLDPE blends with HDPE: Influence of MM of LLDPE

Tayyab Hameed ¹
, Ibnelwaleed A. Hussein ²

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Abstract

The influence of relative molecular mass (MM) of LLDPE on the rheological, thermal and mechanical properties of two sets of m-LLDPE/HDPE blends of low and high branch content (BC) was studied. Blends of m-LLDPE with linear HDPE reveal no influence of MM (60–100 kg/mol) on melt miscibility at low BC (about 20 branches/1 000 C). However, at high BC levels (about 40 branches/1 000 C), MM affects the melt miscibility of m-LLDPE/HDPE blends. The DSC results suggest that compatibility in the solid state is independent of MM and BC. For all blends studied, the HDPE-rich blends are found to contain single crystal populations, suggesting high degree of cocrystallization, whereas, m-LLDPE rich phase shows separate crystallization. Mechanical properties of these blends are found to be a strong function of blend compatibility and the specific properties of the blend components. In general, the high BC pairs show poor mechanical properties.

Keywords

molecular mass / metallocene LLDPE / miscibility / rheological property

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Tayyab Hameed, Ibnelwaleed A. Hussein. Melt miscibility and solid-state properties of metallocene LLDPE blends with HDPE: Influence of MM of LLDPE. Journal of Central South University, 2007, 14(Suppl 1): 183-187 DOI:10.1007/s11771-007-0241-7

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References

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[1]	UtrackiL. A.Polymer Alloys and Blends; Thermodynamics and Rheology[M], 1989, New York, Hanser

[2]	HussseinI. A., WilliamsM. C.Polym Eng Sci, 2001, 41: 696

[3]	La MantiaF. P., ValenzaA., AciernoD.Eur Polym J, 1986, 22(8): 647

[4]	HillM. J., MorganR. L., BarhamP.J Polymer, 1997, 38: 3003

[5]	AlamoR. G., GraessleyW. W., KrishnamoortiR., et al.Macromolecules, 1997, 30: 561

[6]	TanemB. S., StoriA.Polymer, 2001, 42: 5389

[7]	HusseinI. A.Macromolecules, 2003, 36: 2024

[8]	HusseinI. A.Polym Int, 2004, 53: 1327

[9]	HUSSEIN I A. Proceedings of the 20th Meeting of the Polymer Processing Society, Akron, OH, June 20–24, 2004.

[10]	ChuangC. I., HanC. D.J Appl Polym Sci, 1994, 29: 2205

[11]	BinghamE. C.Fluidity and Elasticity[M], 1922, New York, McGraw-Hill: 86

[12]	LinC. C.Polym J (Tokyo), 1979, 11: 185-192

[13]	BOUSMINA M, PALIERNE J F, UTRACKI L A. Polym Eng Sci, 19.

[14]	Abu-sharkhB. F., HusseinI. A.Polymer, 2002, 43: 6333

[15]	ArnalM.L, SánchezJ.J, MüllerA.J. Miscibility of linear and branched polyethylene blends by thermal fractionation: use of the successive self-nucleation and annealing (SSA) technique. Polymer, 2001, 42(16): 6877-6890