Effect of polymers on the abrasive dispersion of carbon steel

Gorokhovskii, G. A.; Chernenko, P. A.; Смирнов, В. А.

doi:10.1007/bf00723162

Cited by 19 publications

(7 citation statements)

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“…Before plasticizing, the mixer was washed to reduce the influence of roller impurities on the rubber performance. [8][9][10][11][12] NR passes through the smelting machine and is plasticized.…”

Section: Natural Rubber Plasticizingmentioning

confidence: 99%

Study on mechanical properties and antifriction of calcium powder filled rubber

Han

Yan

et al. 2021

Polymer Composites

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Studies show that long-term operation of the rubber mixer results in wear at the end face of the mixer. End face wear increases the gap between the mixing chamber and the end face, which results in leakage and reduces the mixing performance, thereby affecting the quality of the final product. Therefore, it is of significant importance to investigate the wear of metal face during the mixing process. In the present study, calcium powder was added to the rubber compound using a mechanical blender to obtain a composite material. Then the influence of the calcium powder on metal friction and wear of the end face of the mixer was analyzed. The obtained results show that the calcium powder has anti-friction properties, which can greatly reduce the compound wear on the metal. The lowest corrosion and wear of the compound on the metal was achieved with 5 phr of calcium powder. Meanwhile, it is found that the tensile and tear-resistance properties of the compound with 5 phr of calcium powder are slightly lower than those without calcium powder. However, the compound with 5 phr of calcium powder has higher friction, cold resistance, wet slip resistance, and lower rolling resistance.

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Section: Natural Rubber Plasticizingmentioning

confidence: 99%

Study on mechanical properties and antifriction of calcium powder filled rubber

Han

Yan

et al. 2021

Polymer Composites

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“…To ensure the smoothness of rubber samples, samples pressurized by the doubleroller mill were put into the grinding tool to obtain a smooth surface and reduce the influence of surface roughness on the friction coefficient. [12][13][14][15][16][17][18][19] 2.4 | Test methods 1. Panye effect: Panye effect [20][21][22][23][24][25] refers to the phenomenon that the dynamic modulus of filled rubber decreases sharply with the increase of strain.…”

Section: Mixing Processmentioning

confidence: 99%

Effect of different amounts of graphene on metal friction and wear during the mixing process

et al. 2021

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Internal mixer is one the most commonly used rubber-mixing equipment, which has been applied for decades. This device can operate continuously for a long time. Accordingly, it is quite probable to have wear of the end face of the mixer. Studies show that the end face wear increases the gap between the mixing chamber and the end face, resulting in material leakage, reducing the mixing effect and ultimately affecting the properties of the compound. Therefore, it is of significant importance to study the friction and wear of the mixing compound to the metal in the mixing process. Considering the superior characteristics of graphene (GE), it is considered a revolutionary material and has been widely applied in numerous applications. In the present study, the influence of the mixing compound with different amounts of GE on the friction and wear of the metal end face was analyzed and the ratio of the corrosion wear to abrasive wear was calculated for the first time. It was found that as the amount of GE increases, the proportion of abrasive wear on the metal increases, the proportion of corrosive wear on the metal decreases, and the metal wear decreases first and then increases. Moreover, the lowest metal wear can be achieved when the amount of GE is 3 phr.

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“…They concluded that in at least one case increasing readiness of polymer oxidation reduced the wear rate against steel. Gorokhovskii etaL [2][3][4] also reported modifications to the structure of steel chips ground together with polymethyl methacrylate (PMMA) associated with progressive mechanical degradation of the polymer. Gorokhovskii etal.…”

Section: Introductionmentioning

confidence: 98%

On the lubrication and wear of metal by rubber

Ab-Malek

Stevenson

1984

J Mater Sci

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A puncture test has been used to investigate the lubrication and wear of metal by rubber. Cylindrical metal indenters are used to puncture a rubber surface under controlled conditions. Several mechanisms are investigated which affect both the lubrication and wear of the metal. A self-lubrication effect is reported whereby there is a drop in puncture load over successive punctures, which correlates with a strong increase in the contact angle of water against the metal surface and is associated with a reduction in metal wear rate. It is suggested that this is due to the formation of a rubbery layer on the metal surface. The wear rates of several different metals are studied and at least one metal showed an enhanced wear rate for its hardness, suggesting some mechanism of polymer radical attack. In most cases, however, metal and rubber hardnesses were the dominant factors in determining wear rates. 1, IntroductionWear of one material by another is usually considered in terms of the wear of a softer material by a harder one. However, hard materials can be worn by softer materials, as illustrated by the wear of a diamond stylus by repeated use on a gramophone record or the wear of stone steps by pedestrian traffic.Some recent work has suggested that polymer radicals formed by the rupture or degradation of the polymer surface can react chemically with metal oxide layers and act either to decrease or increase rates of wear in different circumstances. Thus Vinogradov etal. [1] found in the course of investigating the sliding of polymer discs against metal surfaces that modification of the contacting surfaces could occur both due to polymer degradation (associated with local frictional heating) and to metallization of the polymer surface. They concluded that in at least one case increasing readiness of polymer oxidation reduced the wear rate against steel. Gorokhovskii etaL [2-4] also reported modifications to the structure of steel chips ground together with polymethyl methacrylate (PMMA) associated with progressive mechanical degradation of the polymer. Gorokhovskii etal. also found that the addition of a small amount of polymer (~5%) to abrasive particles could increase the rate of wear of metals 0022-2461/84 $03.00 + .12 by a factor of two to three. The phenomenon was however reversed when larger amounts (> 10%) of polymer were present, when some reductions in wear rate were observed. Gent and Pulford [5,6] have also reported chemical effects. The wear rate of steel razor blades held against rotating solid rubber wheels was, for example, reported to be almost 70 times greater for polyisobutylene-coisoprene than for ethylene propylene rubber of similar hardness. The authors attributed this effect to the direct attack upon metals of free radical species generated by the mechanical rupture of elastomer molecules.In the present study surface effects associated with the wear and lubrication of cylindrical metal indentors were studied by using the indentors to puncture the surfaces of solid rubber blocks. In such a case, si...

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Effect of polymers on the abrasive dispersion of carbon steel

Cited by 19 publications

References 0 publications

Study on mechanical properties and antifriction of calcium powder filled rubber

Study on mechanical properties and antifriction of calcium powder filled rubber

Effect of different amounts of graphene on metal friction and wear during the mixing process

On the lubrication and wear of metal by rubber

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