Effect of nanoclay on the mechanical and damping properties of aramid short fibre‐filled styrene butadiene rubber composites

Praveen, S.; Chattopadhyay, Pijush Kanti; Jayendran, S.; Chakraborty, B.C.; Chattopadhyay, Santanu

doi:10.1002/pi.2706

Cited by 29 publications

(29 citation statements)

References 57 publications

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“…Where, E ′ g and E ′ r are the storage modulus values in the glassy and rubbery regions, respectively . The neat TPU used here is considered as the resin.…”

Section: Resultsmentioning

confidence: 99%

Structurally different short aramid fiber–reinforced thermoplastic polyurethane

Shibulal

Naskar

2013

Polymer Composites

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The reinforcing effect of two structurally different Aramid short fibers, Technora and Twaron on the mechanical, dynamic mechanical, and thermal properties of an ester‐based thermoplastic polyurethane (TPU) was investigated. A fixed fiber length of 6 mm is used by varying the fiber loading ranging from 3 to 10 phr. The Young's modulus and the low strain modulus of Technora–TPU composite was found three times higher than that of Twaron–TPU composite at all ranges of fiber loading. Optical microscopic analysis revealed that a severe processing‐induced fiber breakage of Twaron is the primary reason behind the inferior properties shown by these fiber‐reinforced TPU composite. A brittle kind of failure has been observed during tensile testing in both the composite at a fiber loading of 10 phr. To solve this problem, an economic pretreatment with maleic anhydride‐grafted polybutadine (PB‐g‐MA) has been applied on the Aramid fiber surface before mixing it with the TPU matrix. A good quality of fiber dispersion with significant improvement in mechanical properties could be achieved with the addition of only 5 phr of PB‐g‐MA. Morphological analyses on the tensile‐fractured and cryogenically fractured surfaces of these composites offer strong evidences for the dispersing and coupling action of PB‐g‐MA with these Aramid fibers and the TPU matrix. POLYM. COMPOS., 35:1767–1778, 2014. © 2013 Society of Plastics Engineers

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“…Where, E ′ g and E ′ r are the storage modulus values in the glassy and rubbery regions, respectively . The neat TPU used here is considered as the resin.…”

Section: Resultsmentioning

confidence: 99%

Structurally different short aramid fiber–reinforced thermoplastic polyurethane

Shibulal

Naskar

2013

Polymer Composites

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“…(7). Based on the difference in elastic modulus E′ between rubber and glassy state, the reinforcing effect (denoted as reinforcement coefficient C) of fillers in the polymer matrix can successfully be analyzed (Praveen et al 2010).…”

Section: Reinforcement Coefficient By Dmamentioning

confidence: 99%

Effect of graphene on polar and nonpolar rubber matrices

Mensah

Kang

Wang

et al. 2018

Mech Adv Mater Mod Process

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“…Short cut AFs are produced by cutting long fibers to the desired specific length. They have been widely used in many commercial products, due to their uniform length, light weight, and high modulus . In most cases, the SFRCs have higher mechanical strength than the composites reinforced by particulate fillers such as CB .…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of aramid fiber and carbon black filled hydrogenated nitrile rubber for packer compounds

Shi

Hoch³

et al. 2017

Polymer Composites

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For the use in packer elements for oil exploration, rubber materials are required that can withstand high mechanical loads, high temperatures, and aggressive chemical media. To fulfill these demands, we designed composites of hydrogenated acrylonitrile butadiene rubber filled with both carbon black and short cut aramid fibers. Scanning electron micrographs indicate a strong connection between the resorcinol formaldehyde latex fiber coating and the peroxide-cured rubber matrix. During the preparation of the test specimens, especially care was taken to obtain samples with very well-defined fiber orientations. We studied the effect of fiber anisotropy on the hardness and on the mechanical properties under uniaxial elongation and cyclic compression at room temperature and 1508C. The strongest reinforcing effect is observed when the fibers are oriented along the main direction of deformation. For tensile test, this is the case, as expected, for fibers oriented parallel to elongation. For compression tests on cylindrical specimens, we find that the fiber orientation perpendicular to compression direction is most effective. At 20-40% strain, tensile tests exhibit a pronounced yield stress which is likely the result of the loss of adhesion between the rubber matrix and the fibers. Repeated loading and unloading compression tests reveal a considerable stress softening effect between the first and second cycle for fiber-filled composites. At 1508C, the rubber composites soften considerably, but small amounts of fiber still induce a significant reinforcement. POLYM. COMPOS., 00:000-000, FIG. 9. SEM-Micrographs of a RFL-coated aramid fiber (a), a fiber located at the fracture surface of a tensile test specimen with fibers oriented in L-direction (b), and fracture surfaces of composites with 80 phr CB, 6 phr peroxide, and 6 phr AF with fibers oriented in L-and T-orientation, (c) and (d), respectively.

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Effect of nanoclay on the mechanical and damping properties of aramid short fibre‐filled styrene butadiene rubber composites

Cited by 29 publications

References 57 publications

Structurally different short aramid fiber–reinforced thermoplastic polyurethane

Structurally different short aramid fiber–reinforced thermoplastic polyurethane

Effect of graphene on polar and nonpolar rubber matrices

Mechanical properties of aramid fiber and carbon black filled hydrogenated nitrile rubber for packer compounds

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