Effect of Fiber Reinforcement on Thermal Stability and Swelling Behavior of Cr/NBR Blends

Botros, S. H.; Younan, A. F.; Essa, Mohamed M.

doi:10.1081/ppt-100100037

Cited by 9 publications

(5 citation statements)

References 8 publications

(6 reference statements)

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“…The fiber loading at which the composite strength is minimum is referred to as minimum loading, and the fiber loading at which the composite strength is equal to the matrix value is referred to as critical loading. 11 The minimum and critical fiber loading are function of fiber type, orientation, and adhesion between the rubber matrix, and so forth. With low fiber content, strength of composites ( c ) was dominated by the rubber and reinforcing fibers that acted as material defects due to significant differences in their moduli.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Waste newsprint fibers for reinforcement of radiation-cured styrene butadiene rubber-based composites - Part I: Mechanical and physical properties

Ali

El‐Nemr

Hassan

2011

Journal of Reinforced Plastics and Composites

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In this study, waste newsprint paper fiber was treated by polystyrene emulsion and included as a filler in styrene butadiene rubber. Then, the composites were subjected to electron beam irradiation at different irradiation doses, and follow-up was done on the effect of irradiation dose and fiber concentration on mechanical and physical properties of prepared composites. The results indicated that the mechanical properties like tensile strength, elongation at break, stiffness, and toughness were enhanced by the increase of radiation and fiber content. Also, the physical properties like soluble fraction, swelling ratio, and volume fraction of rubber in swollen gel were enhanced by the increase of radiation and fiber content. On the other hand, scanning electron microscope (SEM) results confirmed that adhesion was situated between fiber and rubber matrix.

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Section: Mechanical Propertiesmentioning

confidence: 99%

Waste newsprint fibers for reinforcement of radiation-cured styrene butadiene rubber-based composites - Part I: Mechanical and physical properties

Ali

El‐Nemr

Hassan

2011

Journal of Reinforced Plastics and Composites

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“…The anomaly in tensile strength for 2 and 4 phr was observed in case of SBR filled with fibers . The authors explain these phenomena as at low filler concentration, the filler acts as defects due to the difference in moduli, as a result the tensile strength decreases up to a critical concentration is reached.…”

Section: Resultsmentioning

confidence: 92%

Effect of gamma irradiation on the properties of natural rubber latex and styrene‐butadiene rubber latex nanocomposites

2016

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Natural rubber (NR)/clay and styrene-butadiene rubber (SBR)/clay nanocomposites were prepared by mixing with aqueous sodium montmorillonite (Na 1 -MMT) clay dispersion by different concentrations of Na 1 -MMT ranging from 2 to 10 phr. These nanocomposites were irradiated with gamma radiation at doses from 10 to 100 kGy. X-ray diffraction (XRD) results indicated well dispersion of rubber latex into clay stacked layers and the platelets have a preferential orientation forming exfoliated NR/Na 1 -MMT nanocomposites while SBR/ Na 1 -MMT form intercalated nanocomposites. Irradiation overall irradiation dose range together with clay loading improve the mechanical properties of rubber/ Na 1 -MMT nanocomposites. However, SBR nanocomposite attains its higher value at 50 kGy, then decrease. Also, the thermal stability at 50 kGy is higher than 100 kGy. POLYM. COMPOS., 38:E189-E198, 2017.

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“…However, NBR exhibits a poor tensile strength and low resistance without vulcanization and reinforcing fillers. Consequently, fillers, such as polymers, metals, and ceramics, are often used to improve the mechanical properties of NBR [1][2][3][4][5]. For example, carbon blacks are excellent reinforcers due to their strong interaction with NBR but these materials have limitations associated with the decreased ability to process the rubber composition when high volume loadings are used.…”

Section: Introductionmentioning

confidence: 99%

Nanocomposites prepared from acrylonitrile–butadiene rubber and organically modified montmorillonite with vinyl groups

Han¹,

Kim²,

Kim³

2005

Nanotechnology

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Nanocomposites were prepared from acrylonitrile–butadiene rubber (NBR), vinyl groups containing organically modified montmorillonite and additives, such as zinc oxide, stearic acid, and sulfur. The organically modified montmorillonites used in these nanocomposites were prepared by ion exchange reactions of N,N′-dimethylalkyl-(p-vinylbenzyl)-ammonium chlorides (DAVBAs, alkyl = octyl, dodecyl, and octadecyl) with sodium montmorillonite (Na+-MMT). NBR nanocomposites were obtained by controlling both the mixing and vulcanization conditions, by using a Brabender mixer and hot-press process. X-ray diffraction (XRD) analysis shows that, depending on the amount of montmorillonite that is added, both exfoliated and intercalated nanocomposite structures are formed. The NBR/DAVBA-MMT nanocomposites exhibit much higher mechanical properties (e.g., tensile strength, Young’s modulus, 300% modulus, and hardness) as well as gas barrier properties as compared to NBR Na+-MMT or NBR composites generated from modified montmorillonites without vinyl groups. Consistent with the results of XRD, transmission electron microscopy (TEM) reveals that the intercalation and exfoliation structures of the nanocomposites coexist and that the DAVBA-MMT layers are well dispersed in NBR.

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Effect of Fiber Reinforcement on Thermal Stability and Swelling Behavior of Cr/NBR Blends

Cited by 9 publications

References 8 publications

Waste newsprint fibers for reinforcement of radiation-cured styrene butadiene rubber-based composites - Part I: Mechanical and physical properties

Waste newsprint fibers for reinforcement of radiation-cured styrene butadiene rubber-based composites - Part I: Mechanical and physical properties

Effect of gamma irradiation on the properties of natural rubber latex and styrene‐butadiene rubber latex nanocomposites

Nanocomposites prepared from acrylonitrile–butadiene rubber and organically modified montmorillonite with vinyl groups

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