Impact of WS2 Nanoparticles on Nitrile Butadiene Rubber Properties

Self Cite

Nitrile rubber is a widely used rubber, so its basic mechanical properties are very important. In order to improve the mechanical properties of nitrile butadiene rubber (NBR), Mg-Al hydrotalcite was introduced into NBR by mechanical blending and hot pressing, and the mechanical properties of the composites were studied. The results show that, compared with NBR, the maximum M H -M L of 2%LDH/NBR composites reaches 1.795 NÁm, and an is improved by 8.7%. The T 90 of NBR and 2%LDH/NBR composites insignificant changed. In terms of mechanical performance, the optimal performance is achieved when two parts of layered double hydroxide (LDH) are added. Compared with the original NBR, the tensile elongation at break, tear strength, and 100% modulus stress increased by 11.6%, 7.1%, and 29.1%, respectively. The addition of LDH also has a certain influence on the thermal conductivity of the composites. Compared with the original NBR, the peak thermal conductivity of NBR with two parts of LDH increased by 2.4 mW. Under the condition of low filling, the mechanical properties such as elongation at break and tear strength of LDH/NBR composites have been improved, which provides a reference for the development of mechanical properties research of NBR.

Section: Introductionmentioning

confidence: 99%

Study on the effect of layered double hydroxide on the mechanical and thermal properties of nitrile butadiene rubber

Wang

Zhang

et al. 2023

Self Cite

“…However, the use of such lubricants in the rubber compounds can affect the physio-mechanical properties of the final vulcanizates. 8,9 Some solid lubricants such as graphite, 7,10,11 molybdenum disulfide, 12 tungsten disulfide, 13 antimony trioxide, 14 and poly(tetrafluoroethylene) (PTFE) 2,[4][5][6]8,9,[15][16][17] have been considered in rubber composites. The lubricating mechanism of solid lubricants in rubber vulcanizates has been explained by cracking and detachment of lubricating particles from the vulcanizate surface under stress concentrations at the interface.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, because of the layered structure of solid lubricants, these materials have very low coefficient of friction and can contribute to reducing friction and wear of polymers. 5,6,9,10,13,14 PTFE is one of the well-known solid lubricants in the various industries due to its good thermal and chemical stability, as well as its durability and chemical resistance. Cylindrical shape of the PTFE chains and the absence of lateral side groups allow for easy slippage of the molecules under stress.…”

Section: Introductionmentioning

confidence: 99%

Effects of modified poly(tetrafluoroethylene) on the physico‐mechanical and tribological properties of carbon‐black filled nitrile‐butadiene rubber

Jafari

Razzaghi‐Kashani

Hosseini

et al. 2020

In this study the effects of electron beam irradiated poly (tetrafluoroethylene) (IR‐PTFE) on the mechanical and tribological properties as well as thermal and solvent aging behavior of carbon black filled nitrile‐butadiene rubber vulcanizates were studied. Based on the obtained results, addition of 30phr IR‐PTFE reduced mechanical strength about 10%, whereas coefficient of friction desirably reduced up to 60%. It was shown that IR‐PTFE significantly improved tribological properties by affecting the adhesion contribution of the friction mechanism. Moreover, formation of IR‐PTFE transfer films also contributed to the reduction of coefficient of friction in the long term tests. In addition, it was explained that IR‐PTFE enhances the sulfur cross‐linking reaction in the vulcanizates by reducing the intensity of carbon black network. Therefore, augmented chemical cross‐links compensates the loss of physical cross‐links in the carbon black network and keeps the solvent swelling resistance unchanged. Also, IR‐PTFE showed positive effects on the solvent aging of the vulcanizates, whereas the thermal aging of vulcanizates was unaffected.

“…Among them, nanozinc oxide, nanotitanium dioxide, nanomagnesium oxide, and other nanosized metal oxides of the main element of the second cycle and the third cycle of the subgroup elements have a wider application range and greater influence. [19][20][21][22] Rao et al 23 found that the mechanical properties of polyvinyl alcohol composite film with copper oxide nanoparticles as filler were enhanced.…”

Section: Introductionmentioning

confidence: 99%

“…Due to that nanometal oxides have small particle size, high surface energy, attractive particles, great tendency of automatic aggregation, and are prone to agglomeration, they have a good affinity with rubber molecules, therefore, they are very popular in the research of composite materials. Among them, nanozinc oxide, nanotitanium dioxide, nanomagnesium oxide, and other nanosized metal oxides of the main element of the second cycle and the third cycle of the subgroup elements have a wider application range and greater influence 19–22 . Rao et al 23 found that the mechanical properties of polyvinyl alcohol composite film with copper oxide nanoparticles as filler were enhanced.…”

Section: Introductionmentioning

confidence: 99%

Study on the friction properties of nanocopper oxide/fluorosilicone rubber

Yang

Jianfeng

Dong

2020

In order to study the effect of nanocopper oxide (n-CuO) on the friction properties of fluorosilicone rubber (FVMQ), the mechanical blending method was used by adding n-CuO in preparation of FVMQ. Characterization of scanning electron microscopy, X-ray diffraction analysis, energy dispersive spectroscopy, and so on were utilized for studying the mechanism of n-CuO in FVMQ. The experimental test on tensile, tear, and friction performance were performed on n-CuO/FVMQ at both room temperature (RT) and 200 C. In comparison with n-CuO /FVMQ, the wear depth of FVMQ increased by 52.933 and 5.605 μm for RT and 200 C, respectively. Besides, the wear loss of FVMQ increased by 2.9 and 5.3 mg, respectively. The results show that for both at RT or 200 C, the addition of n-CuO changes the friction mechanism of FVMQ. The friction coefficient and wear loss of FVMQ are effectively reduced, so that the friction property of rubber matrix is significantly enhanced. In addition, the tearing property of FVMQ is improved by adding n-CuO to change the crosslinking density of FVMQ.