Comparative study of silica‐, nanoclay‐ and carbon black‐filled EPDM rubbers

Tan, Huifeng; Isayev, A. I.

doi:10.1002/app.28130

Cited by 47 publications

(28 citation statements)

References 34 publications

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“…It is well known that silica has a vulcanization-retarding effect because it absorbs the curing activators and accelerators during processing. [25][26][27] However, in this study, it is obvious that WE compounds have shorter vulcanization times than do DE compounds. Table II gives the vulcanization parameters of WE and DE with or without ENR.…”

Section: Vulcanization Propertiesmentioning

confidence: 65%

The behavior of natural rubber–epoxidized natural rubber–silica composites based on wet masterbatch technique

Wang

Liao

Zhong

et al. 2016

J of Applied Polymer Sci

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Natural rubber-epoxidized natural rubber-silica composites were prepared by the wet masterbatch technique and the traditional dry mixing method. Performances of the composites based on different preparation methods were investigated with a moving die rheometer, an electronic universal testing machine, a dynamic mechanical analyzer, a nuclear magnetic resonance crosslink density analyzer, a rubber processing analyzer (RPA), a scanning electron microscope (SEM), and a transmission electron microscope (TEM). The RPA, SEM, and TEM analyses indicated that silica has better dispersion, lower filler-filler interaction, and better filler-rubber interaction in compounds based on the wet masterbatch technique, leading to improvements in mechanical strength and the dynamic mechanical and compression properties of the composites. It also indicates that composites prepared by the wet masterbatch technique have shorter scorch time, faster curing velocity, and higher crosslink density. The composites prepared by the wet materbatch technique also have lower rolling resistance, which is an important property for their use as a green material for the tire industry.

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Section: Vulcanization Propertiesmentioning

confidence: 65%

The behavior of natural rubber–epoxidized natural rubber–silica composites based on wet masterbatch technique

Wang

Liao

Zhong

et al. 2016

J of Applied Polymer Sci

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“…Rheological behavior of different filled polymer systems with carbon black and nanofillers was investigated by different researchers. 10,11 In one of our recent publications, we have reported a comparative study of dynamic and capillary rheology of pristine nanosilica-filled LDPE-EVA-based TPE system with variations in sequence of silica addition, their loading, and with the use of coupling agent. 12 We have also demonstrated the details of the dynamic rheological properties and capillary rheology of such system and have derived the correlation between them.…”

Section: Introductionmentioning

confidence: 99%

Effect of controlled electron beam irradiation on the rheological properties of nanosilica‐filled LDPE‐EVA based thermoplastic elastomer

Hui

Mushtaq

Chaki

et al. 2010

J of Applied Polymer Sci

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The effect of controlled electron beam irradiation on the rheological properties of a model LDPE-EVA thermoplastic elastomer (TPE) system filled with silica nanoparticles is explored in this article. The pristine silica particles were mixed with LDPE-EVA system in molten condition by varying the sequence of addition and amount of nanosilica. In one composition, Si69 was used to improve the state of dispersion of nanosilica. The rheological behavior of irradiated TPE systems is influenced remarkably by irradiation dose, loadings of silica, variation of sequence, and addition of Si69. All filled TPE systems register an increase in elastic response with increasing frequency and with increase in irradiation dose. Upon irradiation, melt viscosity increases when compared with the unirradiated samples because of the crosslinking effect and improvements in interfacial bonding. The viscoelastic response varies markedly with the temperature. The radiation sensitizing effect of silica is reflected from the rheological data. The dynamic and steady shear rheological properties do not follow a simple correlation. Finally, the rheological behavior is correlated with the morphology of the irradiated systems processed at various shear rates.

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“…In recent years, silica has been introduced as a reinforcing filler for rubbers from economic factors and its ability to offer major functional benefits, such as low thermal expansion, chemical resistance, hard surface, high dielectric strength, etc., [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]. In fact, many studies have shown that the technical properties of silica reinforced compounds are better than those of carbon black filled ones [31][32][33][34][35][36][37]. Especially, silica is more often included in the compositions of vibration-damping and vibration-isolating rubber products.…”

Section: Introductionmentioning

confidence: 99%

Vinyl Functional Group Effects on Mechanical and Thermal Properties of Silica-Filled Silicone Rubber/Natural Rubber Blends

Dang

Kim

Lee

2011

Composite Interfaces

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The silane (TESPD) treated silica-filled silicone rubber (SR)/natural rubber (NR) blends are studied with regard to their mechanical, thermal, and optical properties. Two grades of SR, with and without vinyl group are used and the results are compared. The effects of a vinyl functional group in SR with respect to vibration isolation property, and mechanical properties are investigated to find maximum torque, tensile strength, tensile modulus, elongation at break, hardness and tan δ. The compounds are cured with sulfur, peroxide and peroxide/sulfur combination. The results show that the presence of the vinyl group in SR helps improve the mechanical and thermal properties of the SR/NR blend. Scanning electron microscopy (SEM) photographs show that the silica particles are well dispersed in the rubber matrix. Thermal properties including thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and heat resistance are also studied. It shows the presence of the vinyl group in the SR/NR blend curing with the peroxide/sulfur combination improves both mechanical properties and the vibration properties.

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Comparative study of silica‐, nanoclay‐ and carbon black‐filled EPDM rubbers

Cited by 47 publications

References 34 publications

The behavior of natural rubber–epoxidized natural rubber–silica composites based on wet masterbatch technique

The behavior of natural rubber–epoxidized natural rubber–silica composites based on wet masterbatch technique

Effect of controlled electron beam irradiation on the rheological properties of nanosilica‐filled LDPE‐EVA based thermoplastic elastomer

Vinyl Functional Group Effects on Mechanical and Thermal Properties of Silica-Filled Silicone Rubber/Natural Rubber Blends

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