Maleic-Anhydride grafted EPM as compatibilising agent in NR./BR/EPDM blends

Hongmei Zhang; Rabin Datta; Auke Talma; Jacobus W.M. Noordermeer

doi:10.1016/j.eurpolymj.2009.12.020

Maleic-Anhydride grafted EPM as compatibilising agent in NR./BR/EPDM blends

Hongmei Zhang, Rabin Datta, Auke Talma, Jacobus W.M. Noordermeer

Research output: Contribution to journal › Article › Academic › peer-review

23 Citations (Scopus)

Abstract

Incorporation of approximately 30 phr Ethylene–Propylene–Diene rubber (EPDM) into natural rubber (NR)/butadiene rubber (BR) is a means to achieve non-staining ozone resistance for tire sidewall applications. However, due to incompatibility of the elastomers and heterogeneous filler distribution in each of the rubber phases, the mechanical properties deteriorate. In the present work, maleic-anhydride modified EPM (MAH-EPM) is added as a compatibilising agent between NR/BR and EPDM. The addition of 5 phr of MAH-EPM results in significantly improved tensile and tear strength when compared to a straight NR/BR/EPDM blend. These improvements can mainly be attributed to a compatibilising effect of MAH-EPM, resulting in a more homogeneous phase distribution, but in particular a much better homogeneous carbon black distribution over the different rubber phases. In addition, ionic crosslinks are introduced into the blends by interaction of MAH-EPM with zinc oxide.

Original language	English
Pages (from-to)	754-766
Journal	European polymer journal
Volume	46
Issue number	4
DOIs	https://doi.org/10.1016/j.eurpolymj.2009.12.020
Publication status	Published - 2010

Keywords

Tire sidewall
IR-86679
Compatibilisation
Maleic-anhydride grafted EPM
NR/BR/EPDM
Rubber blends
METIS-261598

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@article{d581649db5d844d89065bc531a83260e,

title = "Maleic-Anhydride grafted EPM as compatibilising agent in NR./BR/EPDM blends",

abstract = "Incorporation of approximately 30 phr Ethylene–Propylene–Diene rubber (EPDM) into natural rubber (NR)/butadiene rubber (BR) is a means to achieve non-staining ozone resistance for tire sidewall applications. However, due to incompatibility of the elastomers and heterogeneous filler distribution in each of the rubber phases, the mechanical properties deteriorate. In the present work, maleic-anhydride modified EPM (MAH-EPM) is added as a compatibilising agent between NR/BR and EPDM. The addition of 5 phr of MAH-EPM results in significantly improved tensile and tear strength when compared to a straight NR/BR/EPDM blend. These improvements can mainly be attributed to a compatibilising effect of MAH-EPM, resulting in a more homogeneous phase distribution, but in particular a much better homogeneous carbon black distribution over the different rubber phases. In addition, ionic crosslinks are introduced into the blends by interaction of MAH-EPM with zinc oxide.",

keywords = "Tire sidewall, IR-86679, Compatibilisation, Maleic-anhydride grafted EPM, NR/BR/EPDM, Rubber blends, METIS-261598",

author = "Hongmei Zhang and Rabin Datta and Auke Talma and Noordermeer, {Jacobus W.M.}",

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TY - JOUR

T1 - Maleic-Anhydride grafted EPM as compatibilising agent in NR./BR/EPDM blends

AU - Zhang, Hongmei

AU - Datta, Rabin

AU - Talma, Auke

AU - Noordermeer, Jacobus W.M.

N1 - Accepted and Uploaded: 16 December 2009

PY - 2010

Y1 - 2010

N2 - Incorporation of approximately 30 phr Ethylene–Propylene–Diene rubber (EPDM) into natural rubber (NR)/butadiene rubber (BR) is a means to achieve non-staining ozone resistance for tire sidewall applications. However, due to incompatibility of the elastomers and heterogeneous filler distribution in each of the rubber phases, the mechanical properties deteriorate. In the present work, maleic-anhydride modified EPM (MAH-EPM) is added as a compatibilising agent between NR/BR and EPDM. The addition of 5 phr of MAH-EPM results in significantly improved tensile and tear strength when compared to a straight NR/BR/EPDM blend. These improvements can mainly be attributed to a compatibilising effect of MAH-EPM, resulting in a more homogeneous phase distribution, but in particular a much better homogeneous carbon black distribution over the different rubber phases. In addition, ionic crosslinks are introduced into the blends by interaction of MAH-EPM with zinc oxide.

AB - Incorporation of approximately 30 phr Ethylene–Propylene–Diene rubber (EPDM) into natural rubber (NR)/butadiene rubber (BR) is a means to achieve non-staining ozone resistance for tire sidewall applications. However, due to incompatibility of the elastomers and heterogeneous filler distribution in each of the rubber phases, the mechanical properties deteriorate. In the present work, maleic-anhydride modified EPM (MAH-EPM) is added as a compatibilising agent between NR/BR and EPDM. The addition of 5 phr of MAH-EPM results in significantly improved tensile and tear strength when compared to a straight NR/BR/EPDM blend. These improvements can mainly be attributed to a compatibilising effect of MAH-EPM, resulting in a more homogeneous phase distribution, but in particular a much better homogeneous carbon black distribution over the different rubber phases. In addition, ionic crosslinks are introduced into the blends by interaction of MAH-EPM with zinc oxide.

KW - Tire sidewall

KW - IR-86679

KW - Compatibilisation

KW - Maleic-anhydride grafted EPM

KW - NR/BR/EPDM

KW - Rubber blends

KW - METIS-261598

U2 - 10.1016/j.eurpolymj.2009.12.020

DO - 10.1016/j.eurpolymj.2009.12.020

M3 - Article

VL - 46

SP - 754

EP - 766

JO - European polymer journal

JF - European polymer journal

SN - 0014-3057

IS - 4

ER -