Manipulating the Filler Network Structure and Properties of Polylactide/Carbon Black Nanocomposites with the Aid of Stereocomplex Crystallites

2018 ◽  
Vol 122 (8) ◽  
pp. 4232-4240 ◽  
Author(s):  
Huili Liu ◽  
Dongyu Bai ◽  
Hongwei Bai ◽  
Qin Zhang ◽  
Qiang Fu
Keyword(s):  
Carbon Black ◽  
Network Structure ◽  
Structure And Properties ◽  
Filler Network

Imaging the strain induced carbon black filler network structure breakage with nano X-ray tomography

RSC Advances ◽  
2014 ◽  
Vol 4 (97) ◽  
pp. 54500-54505 ◽  
Author(s):  
Weiming Zhou ◽  
Liang Chen ◽  
Jie Lu ◽  
Zeming Qi ◽  
Ningdong Huang ◽  
...  
Keyword(s):  
Carbon Black ◽  
Natural Rubber ◽  
Network Structure ◽  
Rubber Matrix ◽  
X Ray ◽  
Filler Network

The 3D dispersion and breakage of CB aggregates in the natural rubber matrix are obtained by TXM at stain 3.

CORRELATION OF FILLER NETWORKING WITH REINFORCEMENT AND DYNAMIC PROPERTIES OF SSBR/CARBON BLACK/SILICA COMPOSITES

2015 ◽  
Vol 88 (4) ◽  
pp. 676-689 ◽  
Author(s):  
Wengjiang Feng ◽  
Zhenghai Tang ◽  
Peijin Weng ◽  
Baochun Guo
Keyword(s):  
Carbon Black ◽  
Network Structure ◽  
Dynamic Properties ◽  
Rolling Resistance ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Rubber Composites ◽  
Filler Network ◽  
Improved Performance ◽  
Styrene Butadiene

ABSTRACT The use of silica to partially replace carbon black is a common practice in the fabrication of “green tires.” Although some degree of consensus has been approached concerning the improved performance conferred by silica substitution, such as the improved dispersion of carbon black, a quantitative understanding of the relationship between filler networking and the performance of rubber composites has not been established. Thus, an investigation focusing on filler network structure and the correlation between the network structure and the reinforcement of rubber composites was conducted. We prepared solution-polymerized styrene–butadiene rubber (SSBR) reinforced by carbon black and carbon black/silica in different ratios. To exclude as much of the effect from changed crosslinking, and figure out how filler blending influences filler dispersion and filler network structure, the silane generally used in the tire industry was not adopted. The quantitative predictor, the mass fractal dimension df, was derived from the Kraus model and the Huber–Vilgis model. We found that when the amount of substituted silica increases, the filler cluster branching decreases, accompanied by increased reinforcement efficiency. The depressed filler networking induced by silica substitution at an appropriate proportion leads to improved dynamic properties, including lower rolling resistance and better wet skid. When the silica proportion in the filler is too high, severe filler networking is observed, resulting in decreased reinforcing efficiency and impaired dynamic properties.

scholarly journals EFFECT OF MECHANOCHEMICAL TREATMENT OF INGREDIENTS ON STRUCTURE AND PROPERTIES OF RUBBER MIXTURES AND RUBBERS ON BASIS ОF 1,4-CIS-POLYISOPRENE

2020 ◽  
Vol 63 (5) ◽  
pp. 89-93
Author(s):  
Vladimir M. Makarov ◽  
Elena L. Nikitina ◽  
Olga Yu. Solovyeva
Keyword(s):  
Magnetic Field ◽  
Zinc Oxide ◽  
Carbon Black ◽  
Mechanochemical Activation ◽  
Mechanochemical Treatment ◽  
Structure And Properties ◽  
Electrical Grid ◽  
Magnetic Elements ◽  
The Magnetic Field

The effect of the mechanochemical treatment of components of the sulphurous vulcanizing group on the properties of rubber mixtures and rubbers on the basis of 1,4-cis-polyisopren, filled with carbon black N330, was investigated. The mechanochemical activation of the components was carried out by processing them in a device that is a reactor with magnetic elements and a coil of inductivity. When connecting the inductor to the electrical grid, the working elements are exposed to the magnetic field and began to move intensiocly way with the transfer of energy to powdered particles. The treatment of both individual components: zinc oxide, accelerators, and all components of the sulfur vulcanizing group leads to an increase in the rate and degree of structuring of rubber in the main vulcanization period and a decrease in the tendency of rubber to reverse in the postvulcanization stage. In this case the values of elasticity modules increase and mechanical losses in vulcanizates reduce as the temperature increases. Most of these changes in the properties of mixtures and rubbers are expressed in the processing of individual accelerators and together all components of the vulcanizing group. Storage of activated ingredients for 30 days does not lead to significant changes in the structure and properties of rubber mixtures and vulcanizates.

The network structure and properties of multifunctional epoxy/anhydride systems

2016 ◽  
Vol 28 (7) ◽  
pp. 854-860 ◽  
Author(s):  
Tao Yang ◽  
Chongfeng Zhang ◽  
Xuqi Hou ◽  
Jue Cheng ◽  
Junying Zhang
Keyword(s):  
Network Structure ◽  
Structure And Properties

New, Highly Structured Carbon Black of the OMCARB Series for Reducing the Hysteresis in Rubber. Part 1. Features of the Structure and Properties of Carbon Black

2016 ◽  
Vol 43 (12) ◽  
pp. 17-22
Author(s):  
G.V. Moiseevskaya ◽  
G.I. Razd'yakonova ◽  
A.A. Petin ◽  
E.A. Strizhak
Keyword(s):  
Carbon Black ◽  
Chemical Properties ◽  
Morphological Characteristics ◽  
Structural Data ◽  
Structure And Properties ◽  
Elastomeric Materials ◽  
Rubber Part ◽  
Average Size ◽  
Branched Structure ◽  
And Chemical Properties

The aim of this work was to study the properties of carbon black CH85 of the OMCARB series and to compare them with the properties of standard carbon blacks N339 and N234. The morphological characteristics, the size distribution of the globules and aggregates, the surface area, the proportion of micropore area, the degree of branching of aggregates, and also the mechanical and chemical properties were measured and calculated. The average size of the aggregates of CH85 is greater than that of N339 and N234, and the aggregates have a more open and branched structure. The iodine adsorption by CH85 is practically the same as that by N339 and lower than that by N234. The low-hysteresis index calculated on the basis of structural data is much better for CH85. This opens up the possibility of using this type of carbon black for the development of elastomeric materials with low hysteresis.

Structure and Properties of Loaded Rubber Mixtures. X. Alteration of Carbon Black Structures by Heat Treatment

1953 ◽  
Vol 26 (4) ◽  
pp. 821-831 ◽  
Author(s):  
B. A. Dogadkin ◽  
K. Pechkovskaya ◽  
Ts Mil'man
Keyword(s):  
Heat Treatment ◽  
Carbon Black ◽  
Electric Resistivity ◽  
Structure And Properties ◽  
Prolonged Heating ◽  
Carbon Blacks ◽  
Exponential Law ◽  
Carbon Structures ◽  
Carbon Carbon Bonds ◽  
Carbon Bonds

Abstract 1. Raising the temperature of vulcanizates containing carbon black causes changes in the carbon structures, which can be estimated by the value of specific electric resistivity ρ and the index n in the equation: I=cVn, relating the strength of the current I with the voltage V. 2. These changes are nearly independent of the type of rubber and are governed chiefly by the type of carbon black. 3. The change of electric resistivity of vulcanizates with temperature follows an exponential law, and can be expressed by the equation : ρt=ρ0 eαt. 4. The sign of the coefficient α is negative for vulcanizates containing channel carbon black, and positive for those containing nozzle black or lamp black. 5. Heating of vulcanizates (up to 100°) for 30 minutes causes destruction of the nozzle black and lamp black particles, but causes little apparent destruction of channel black structures. 6. Prolonged heating (10 hours or more) at temperatures above 60° C causes destruction of the particles of all the carbon blacks studied. This detruction is more extensive in the case of nozzle and lamp blacks than in the case of channel black. 7. During heat treatment of mixtures containing channel black, it is chiefly the carbon-rubber bonds that are destroyed (the index n decreases); whereas in mixtures containing nozzle, furnace and lamp blacks, it is chiefly the carbon-carbon bonds that are destroyed (the index n increases). 8. The higher the temperature during deformation and relaxation, the greater is the degree of restoration of the carbon structures which are destroyed during deformation. 9. The degree of restoration of the carbon structures under identical conditions of deformation and relaxation of vulcanizates containing nozzle black is greater than that of corresponding vulcanizates containing channel black.

Protein network structure and properties of wheat gluten extrudates using a novel solvent-free approach with urea as a combined denaturant and plasticiser

Soft Matter ◽  
2011 ◽  
Vol 7 (19) ◽  
pp. 9416 ◽  
Author(s):  
Hasan Türe ◽  
Mikael Gällstedt ◽  
Ramune Kuktaite ◽  
Eva Johansson ◽  
Mikael S. Hedenqvist
Keyword(s):  
Network Structure ◽  
Wheat Gluten ◽  
Solvent Free ◽  
Protein Network ◽  
Structure And Properties
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