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Abstract

The aim of this article is to study the effect of antioxidants on cure properties and aging behaviour of ethylene propylene diene rubber (EPDM) and EPDM/low density polyethylene (LDPE) blends. Dicumyl peroxide cured EPDM and EPDM/LDPE blends are prepared with three categories of antioxidants, including: amine, N-isopropyl-N′-phenyl-ρ-phenylenedia mine (antioxidant 4010NA) and 2,2,4-trimethyl-1,2-dihydroquinoline (antioxidant RD); phenol, n-Otadecyl-β-(4-hydroxy-3,5-ditert-butyl-phenyl)-propionate (antioxidant 1076) and sulphur containing antioxidant, 2-mercapto benzimidazole (antioxidant MB). The damp heat aging was carried out at a relative humidity of 93% and a temperature of 40°C. The thermal aging was performed at 120°C. The two types of aging have been taken for eight weeks respectively. The combined antioxidant RD/MB is a favourable additive. The cure characteristics of EPDM with antioxidant RD/MB are notable compared with those of EPDM without antioxidants. Additionally, antioxidant RD/MB has the sound aging performance for the EPDM and EPDM/LDPE blend. Antioxidant 4010NA performs poorer than others during aging, due to the remarkable retardation for the peroxide vulcanisation process.

Keywords

EPDM LDPE ANTIOXIDANT CURE KINETICS THERMAL AGING DAMP HEAT AGING

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References

Baldwin

F. P.

: Rubber Chem. Technot , 1972, 45, 709–881.

Barlow

F. W.

: ‘Rubber compounding: principles, materials, and techniques’, 325; 1988, New York, Marcel Dekker, Inc.

Machado

A. V.

and van Duin

: Polymer , 2005, 46, 6575–6586.

Spenadel

: Rubber Chem. TechnoL , 1983, 56, 113–134.

Allen

R. D.

: J. Elastomers Plast ., 1983, 15, 19–32.

Ghosh

, Chattopadhyay

and Sen

A. K.

: Eur. Polym. J ., 1996, 32, 1015–1021.

‘Ethylene-propylene rubbers and elastomers’, 2006, Houston, TX, International institute of synthetic rubber producers, available at www.iisrp.com/WebPolymers/10EPDMSep11.pdf.

Bhowmick

A. K.

and Stephens

H. L.

: ‘Handbook of elastomers: new developments and technology’: 1988, New York, Marcel Dekker, Inc.

Leblanc

J. L.

: Prog. Polym. Sci., 2002, 27, 627–687.

10.

Y. T.

, Mark

J. E.

, Pham

L. H.

and Engelhardt

: J. Appl. Polym. Sci., 2001, 82, 1391-1403.

11.

Younan

A. F.

, Ismail

M. N.

and Yehia

A. A.

: J. Appl. Polym. Set , 1992, 45, 1967–1971.

12.

Bielinski

D. M.

and Kaczmarek

: J. Appl. Polym. Sci., 2006, 100, 625–633.

13.

Ohm

, Annicelli

, Jablonowski

, Lahiri

and Mazzeo

: Rubber Chem. Technot , 2001, 74, 176.

14.

Larson

R. A.

: ‘Naturally occurring antioxidants’: 1997, New York, Lewis Publishers.

15.

Lutz

J. T. J.

: ‘Thermoplastic polymer additives — theory and practice’, 544; 1989, New York, Marcel Dekker.

16.

Basfar

A. A.

, Mosnacek

, Shukri

T. M.

, Bahattab

M. A.

, Noireaux

and Courdreuse

: J. Appl. Polym. Sci., 2008, 107, 642–649.

17.

Stepek

and Daout

: ‘Additives for plastics’: 1983, New York, Springer-Verlag.

18.

Naskar

, Kokot

and Noordermeer

J. W. M.

: Polymer Degrad. Stab ., 2004, 85, 831–839.

19.

Dluzneski

P. R.

: Rubber Chem. TechnoL , 2000, 74, 451–492.

20.

Poh

B. T.

and Te

C. S.

: J. Appl. Polym. Sci., 1999, 74, 2940-2946.

21.

Poh

B. T.

and Te

C. S.

: J. Appl. Polym. Sci., 2000, 77, 3234-3238.

22.

Keller

R. C.

: Rubber Chem. Technol , 1988, 61, 238–254.

23.

Ohm

, Annicelli

, Jablonowski

and Mazzeo

: Rubber World , 2002, 226, 33–37.

24.

Eirich

F. R.

: ‘Science and technology of rubber’, 670; 1978, New York, Academic Press.

25.

Brandrup

, Immergut

E. H.

and Grulke

E. A.

: ‘Polymer handbook ’; 1999, New York, Wiley.

26.

Baba

, Gardette

J.-L.

and Lacoste

: Polym. Degrad. Stab ., 1999, 63, 121–126.

27.

Palmas

, Le Campion

, Bourgeoisat

and Martel

: Polymer , 2001, 42, 7675–7683.

28.

Lutz

J. T.

Jr (ed.): ‘Thermoplastic polymer additives — theory and practice’, 544; 1989, New York, Marcel Dekker.

Influence of different antioxidants on cure kinetics and aging behaviours of ethylene propylene diene rubber/low density polyethylene blends

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