Effects of linear density and twist level on the mechanical properties of nylon 6.6 tyre cords

Aytaç, Ayşe; Yilmaz, Berrin; Deniz, Veli

doi:10.1007/s12221-010-0309-0

Cited by 10 publications

(15 citation statements)

References 13 publications

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“…In such composites, fibers are embedded in the rubber matrix serving as a reinforcement component to bear the major part of the structural load and maintain its shape. 1 There are currently five major types of synthetic tire cords used as the reinforcing materials in the rubber matrix. They are produced from regenerated cellulose (rayon), polyester (PET), poly(ethylene naphthalate) (PEN), nylon 6 (PA6) and nylon 6.6 (PA6.6), and aramid fibers.…”

Section: Introductionmentioning

confidence: 99%

“…They are produced from regenerated cellulose (rayon), polyester (PET), poly(ethylene naphthalate) (PEN), nylon 6 (PA6) and nylon 6.6 (PA6.6), and aramid fibers. [1][2][3][4] Poly(ethylene terephthalate) (commonly known as PET) and nylon are so far most commonly used polymers for rubber composites and tires. 2 Because of high modulus, low thermal shrinkage, high strength, and good durability, the consumption of PET as the tire carcass cord has been increasing in recent years.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and characteristics of an advanced polyester tire cord with hybrid effect

Tian

Wei

2019

Journal of Engineered Fibers and Fabrics

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Many efforts have been made to study new reinforced materials to meet the increasing demands of various products. Hybrid cords have attracted a great deal of attention due to low cost and incomparable properties. Nylon and polyester are currently two of the most prevalent materials used as tire cords, while how to incorporate both of their desirable properties into one cord has been a meaningful scientific research. In this study, a new advanced polyester tire cord was developed by adopting the design of experiment. Its stress-strain curve demonstrated a high modulus typical for the standard polyester thus improving tire dimensional stability and handling performance and high breaking elongation up to 21.7% that was a favorable characteristic of nylon cord creating a hybrid effect. H-adhesion experiment showed that this advanced cord had comparable adhesion to rubber as the standard polyester tire cord and could be used for production of tires.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and characteristics of an advanced polyester tire cord with hybrid effect

Tian

Wei

2019

Journal of Engineered Fibers and Fabrics

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“…Representative stress-strain curves are depicted in Figure 5, and data/CV (coefficient of variation) derived from the stress-strain curves along with representative thermal shrinkage are summarized in Table 1. As tire cords were continuously strained to 2%-5%, 15 load at a specified elongation of 5% (LASE-5) was adopted as a way to evaluate the modulus of tire cords 16 Higher values of LASE-5 indicate a higher modulus, which in turn is a desirable characteristic of tire cords. As indicated in Figure 5 and Table 1, the nylon-like polyester tire cord possesses a high modulus typical for the standard polyester cord, thus enhancing tire dimensional stability and handling performance, and a high breaking elongation up to 21.7%.…”

Section: Static Mechanical Propertiesmentioning

confidence: 99%

Study on dynamic mechanical properties of a nylon-like polyester tire cord

Tian

Wang

Wei

2019

Journal of Engineered Fibers and Fabrics

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Tires might be the first technically significant composite out of rubber and play a vital role in the overall performance of a car. The essential functions of a tire rely to a great extent on the properties of tire cords. Polyester and nylon cords make up the majority of synthetic fibers used in tires. A new kind of polyester cord has been developed combining the performance characteristics of both polyester and nylon cords. This article examines the dynamic mechanical properties of this nylon-like polyester tire cord by adopting dynamic mechanical analysis, Instron, and DISC fatigue experiments, as well as its dynamic adhesion property using flex fatigue experiment. It demonstrated that the dynamic complex modulus of the nylon-like polyester cord was higher than that of nylon 6 cord but lower than that of standard polyester cord, which was a favorable characteristic when it came to replacing nylon 6 cord with nylon-like polyester cord in tires. Under cyclic loading, hysteresis loss of nylon 6 cord > nylon 66 cord > nylon-like polyester cord > standard polyester cord was observed. In the DISC experiment, nylon-like polyester had a similar compression resistance property to that of nylon 6 cord. At a temperature below 85°C, nylon-like polyester cord maintained roughly the same level of residual ratio of dynamic adhesion, but beyond this temperature point, nylon 6 exhibited a better performance.

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“…After the precuring of RFL treated cords, the RFL solution is cross‐linked onto cords surface and is converted to an insoluble adhesive system. Resorcinol‐formaldehyde (RF) resin supplies require fatigue and heat resistance via making a three‐dimensional network 11 . Several attempts have been done in the past to replace or to improve the RFL adhesive system for cord‐rubber composites, which is cost and superior effectiveness.…”

Section: Introductionmentioning

confidence: 99%

Improving adhesion between polyester cord and rubber by using glycidyl‐POSS

Doğancı

2020

J of Applied Polymer Sci

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Poly(ethylene terephthalate) (PET) cords are usually coated with epoxy and/or isocyanate solutions (like methylene diphenyl diisocyanate [MDI]) before resorcinol-formaldehyde-latex (RFL) to increase the adhesion efficiency of RFL. In this article, the addition of glycidyl polyhedral oligomeric silsesquioxane (GPOSS) as an adhesion promoter to PET cord was investigated for reinforcing PET cord/rubber interfacial adhesion. Therefore, GPOSS treated PET cords (GPOSS + MDI + RFL) were prepared in different process conditions like different GPOSS ratios and oven curing times and then vulcanized with rubber. RFL, GPOSS + RFL, MDI + RFL, and commercial epoxies treated PET cord samples were also prepared for comparison with GPOSS +MDI + RFL treated PET cord. The thermal, mechanical, and morphological properties of the treated PET yarn and their composites with rubber were investigated. It was seen that in the GPOSS coated PET yarns increased the stiffness and no change was observed in the tensile strength of the PET yarns. It was determined that the utilization of GPOSS in the PET cord improved the adhesion of the cord to rubber when compared with other treated PET cords via H-adhesion and strip peel adhesion tests. Especially, since adhesion values give better results than commercially used epoxies, GPOSS as an adhesion promoter can be recommended in the rubber industry.

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Effects of linear density and twist level on the mechanical properties of nylon 6.6 tyre cords

Cited by 10 publications

References 13 publications

Preparation and characteristics of an advanced polyester tire cord with hybrid effect

Preparation and characteristics of an advanced polyester tire cord with hybrid effect

Study on dynamic mechanical properties of a nylon-like polyester tire cord

Improving adhesion between polyester cord and rubber by using glycidyl‐POSS

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