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

Han, Deshang; Wang, Kongshuo; Bian, Huiguang; Yan, Gang; Wang, Chuansheng

doi:10.1002/pc.26206

Cited by 14 publications

(7 citation statements)

References 34 publications

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“…In this experiment, the single variable was strictly controlled to ensure the consistency of the process. [22][23][24][25][26][27][28][29] In order to reduce the aggregation of silica after silanization, fine silica was selected in this experiment, and the particle size was up to 10-20 nm, which could reduce the aggregation of silica. At the same time, ensure the mixing at 145-155 C for 1 min, which could maximize the promotion of silane reaction, reduce the aggregation of silica.…”

Section: Test Methodsmentioning

confidence: 99%

Effect of adding different silane coupling agents on metal friction and wear in mixing process

Han

Xue

et al. 2021

J of Applied Polymer Sci

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The function of silane coupling agent in rubber mixing field is to combine inorganic matrix with rubber organic matrix. Silica is commonly used in the rubber mixing field to strengthen rubber. The size and amount of silica aggregates in the mixing process are important factors affecting the wear of the mixing chamber. The wear of the mixing chamber would lead to a increasing gap between the mixer chamber and the rotor, which caused the mixing efficiency reducing. It also affected the dispersion effect, then affected the mechanical and physical properties of the vulcanized rubber. In this paper, the effects of rubber compound on metal friction and wear were studied by using four silane coupling agents commonly used in rubber mixing field. The experiment was carried out at 15 C, and the attention should be paid to drying during sample preparation to avoid the deviation of the experiment caused by hydrolysis of silane coupling agent. The results showed that silanization reaction occured between silica and silane coupling agent in the mixing process.The mixing temperature was usually maintained at 145 to 155 C for 1 min in the mixer, and the silanization reaction rate was the fastest during this time.We took this rubber compound as the research object and studied the friction and wear of the rubber compound on the mixing chamber in the mixing process. The products of the silylation reaction are alcohol and water. This paper studies the corrosion and abrasion of the mixing chamber by water at high temperatures. In the mixing process, abrasive wear was the main wear form, but the corrosion wear caused by high temperature steam still occupied a large proportion.

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Section: Test Methodsmentioning

confidence: 99%

Effect of adding different silane coupling agents on metal friction and wear in mixing process

Han

Xue

et al. 2021

J of Applied Polymer Sci

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“…Accordingly, this two-stage reaction can be considered condensation between adjacent TESPTs chemically bonded to the silica surface. The silanization reaction can be expressed as follows (Figure 4): (4) Three-dimensional shape observation: In the present study, a 3D laser measuring microscope was used to observe the surface morphology of the metal and measure the metal wear based on the volume reduction in the metal grinding head [39][40][41][42][43][44][45]. (5) Dispersion test: A dispersion meter was used to test the degree of dispersion and obtain the dispersion value according to the ASTM D7723 standard.…”

Section: Silanizationreaction Mechanismmentioning

confidence: 99%

The Effect of Different Dosages of TESPT on Metal Friction and Metal Wear in the Mixing Process

Han

Wang

et al. 2022

Polymers

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Studies show that the dispersion of silica in the mixing process is an important factor affecting the wear of the mixing chamber. As the most important mixing equipment, the long operational life of the internal mixer will cause wear in the rotor and chamber of the internal mixer. This wear increases the gap between the rotor and chamber of the internal mixer, reduces the mixing performance, weakens the dispersion of packing, and adversely affects the quality of the rubber produced. Therefore, it is important to investigate the metal wear in the mixing process. This article examines the effect of the addition of different amounts of silane coupling agents on metal friction and wear during the mixing process. The silane coupling agent has two functions. The first is to make the surface of the silica hydrophobic, enabling it to combine the inorganic matrix of the silica with the organic matrix of the rubber; the second is to inhibit the aggregation of the silica in the rubber. In the present study, we examine (1) the influence of different formulations on the friction and wear of the metal in the mixing chamber from the perspective of formulation technology, and (2) the correlation between corrosion wear and abrasive wear. It is found that a rubber compound with 6 phr of TESPT has the lowest metal wear and that adding more TESPT does not affect the degree of metal wear. As the amount of TESPT increases, the proportion of abrasive wear decreases, while the proportion of corrosive wear increases, reaching a maximum of 20.7%. In our study we found that abrasive wear is the predominant wear mechanism of a rubber compound on metal. In contrast, the corrosive wear caused by high-temperature water vapor still occupies a large proportion of the total wear. Therefore, improving silica dispersion and reducing abrasive wear are extremely important methods to protect the mixing chamber. However, the corrosion of metals by high-temperature water vapor should also be considered when preparing for the mixing process.

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“…(1) SiO 2 particles have the characteristics of extremely easy agglomeration, while SiO 2 particles are complex and irregular surfaces, so SiO 2 particle aggregates are the leading cause of abrasive metal wear [ 38 , 39 , 40 , 41 , 42 , 43 , 44 ].…”

Section: Mechanistic Studymentioning

confidence: 99%

Research on Friction and Wear Properties of Rubber Composites by Adding Glass Fiber during Mixing

et al. 2022

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GF/rubber composites have sound insulation characteristics, heat resistance, good corrosion resistance, and high mechanical strength. The compounding machine’s long working hours will inevitably wear the metal on the end face of the compounding machine. The wear of the end face metal will increase the gap between the chamber and the end face, which will lead to material leakage, reduce the mixing effect, and eventually affect the performance of GF/rubber composites. To ensure the implementation of GF/rubber composites, it is necessary to study the frictional wear behavior of GF/rubber composites on metals. In this paper, the effect of blending rubber with different amounts of GF on the frictional wear of metal on the end face was analyzed from the perspective of the formulation process, and the ratio of corrosion wear and abrasive wear was calculated for the first time.

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

Cited by 14 publications

References 34 publications

Effect of adding different silane coupling agents on metal friction and wear in mixing process

Effect of adding different silane coupling agents on metal friction and wear in mixing process

The Effect of Different Dosages of TESPT on Metal Friction and Metal Wear in the Mixing Process

Research on Friction and Wear Properties of Rubber Composites by Adding Glass Fiber during Mixing

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