Functionalisation of ethylene–propylene copolymer by melt grafting of maleic anhydride using a high shear internal mixer

Mohamad, Noraiham; Mahamood, Mazlin Aida; Juliana, Y.; Jeefferie, Abd Razak; Muchtar, Andanastuti; Shueb, M. I.; Kassim, Mohd Shahir; Azam, Mohd Asyadi; Yuhazri, Yaakob Mohd; Mustafa, N.; Toibah, A.R.; Sahroni, Taufik Roni; Ahsan, Q.

doi:10.1179/1432891714z.000000000928

Cited by 1 publication

(2 citation statements)

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“…In fact, there is an immense potential to develop rubber nanocomposites with ideal vibration damping capacity with incorporation of GNPs. Previously, we had optimized the process parameters for melt compounding of NR/EPDM filled GNPs nanocomposites as well as investigated the effect of chemical functionalization on GNPs [8][9]13,25]. In this present study, chitosanfunctionalized and unfunctionalized GNPs at different loadings were characterized for damping behavior in terms of their log decrement and damping ratio values in free vibration test.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, rubber blends are widely utilized in automobile parts such as springs and snubbers, hoses and belting, seals and bearings, engine mounts, gear gaskets, pneumatic tires and tubes. For the past few years, many researchers have integrated NR and EPDM synthetic rubber for the preparation of elastomeric blends as stated by Mohamad et al [8]. NR/EPDM has exciting potential in outdoor applications because of its excellent thermal, chemical and ozone resistance, as well as attractive dynamic properties.…”

Section: Introductionmentioning

confidence: 99%

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Vibrational damping behaviors of graphene nanoplatelets reinforced NR/EPDM nanocomposites

Mohamad¹,

Yaakub²,

Maulod³

et al. 2017

J. MECH. ENG. SCI.

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Vibrational damping behaviors of graphene nanoplatelets (GNPs) reinforced natural rubber/ethylene-propylene-diene rubber (NR/EPDM) were investigated. The nanocomposites were prepared through melt compounding using a Haake internal mixer. In this study, GNPs reinforced NR/EPDM nanocomposites were characterized for damping properties towards the effect of GNPs loading (1, 3 and 5 wt%) and chitosanfunctionalization. The results indicate the addition of GNPs have significantly improved both log decrement and damping ratio values correlated to the enhanced damping property of the nanocomposites. Chitosan-functionalized GNPs seem to slightly hamper the increase of damping properties contributed by incorporation of GNPs in NR/EPDM blends. These findings were further supported by thermal and morphological studies through dynamic mechanical analysis (DMA) and transmission electron microscopy (TEM) analysis. The storage modulus, loss modulus and tan δ showed good agreement with the vibrational damping test. Meanwhile, TEM analysis revealed the existence of intercalated and exfoliated structure of GNPs in NR/EPDM matrix which resulted in improved vibration damping properties of the nanocomposites for the potential used as vibration insulator.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%