Synthesis and Characterization of trans-1,4-Poly(butadiene-co-isoprene) Rubbers (TBIR) with Different Fraction and Chain Sequence Distribution and Its Influence on the Properties of Natural Rubber/TBIR/Carbon Black Composites

2019 ◽  
Vol 58 (24) ◽  
pp. 10609-10617 ◽  
Author(s):  
Weitian Li ◽  
Wei Peng ◽  
Shuting Ren ◽  
Aihua He
Keyword(s):  
Carbon Black ◽  
Natural Rubber ◽  
Synthesis And Characterization ◽  
Sequence Distribution ◽  
Chain Sequence

Microwave properties of natural rubber based composites containing carbon black-magnetite hybrid fillers

2018 ◽  
Vol 25 (3) ◽  
pp. 611-620 ◽  
Author(s):  
Ahmed A. Al-Ghamdi ◽  
Omar A. Al-Hartomy ◽  
Falleh Al-Solamy ◽  
Nikolay Dishovsky ◽  
Petrunka Malinova ◽  
...  
Keyword(s):  
Carbon Black ◽  
Natural Rubber ◽  
Microwave Properties ◽  
Synthesis And Characterization ◽  
Hybrid Filler ◽  
Hybrid Fillers ◽  
True Hybrid ◽  
Magnetite Phase ◽  
Microwave Characteristics

Abstract The paper presents the synthesis and characterization of a carbon black-magnetite hybrid filler. The complex study on the structure of the filler has shown the magnetite phase to be distributed both over the surface (inter-aggregately) and inside (intra-aggregately) the carbon black particles, thus forming a true hybrid material. The results from the investigations on the mechanical and microwave properties of natural rubber-based composites filled with the new hybrid filler have been also reported. They have been compared to those of a composite comprising the physical mixture of carbon black and magnetite (at the same ratio as in the hybrid filler). The determined microwave characteristics of the composite comprising the hybrid filler obtained reveal the possibility for its use in manufacturing elastomer-based microwave absorbers.

scholarly journals Effects of added carbon black on synthesis and characterization of calcium aluminate electride

2020 ◽  
Author(s):  
U. Khopongpaiboon ◽  
W. Jarernboon ◽  
V. Amornkitbamrung ◽  
B. Na Lampang ◽  
S. Sinthupinyo ◽  
...  
Keyword(s):  
Carbon Black ◽  
Calcium Aluminate ◽  
Synthesis And Characterization

Characterization of Snap-On Calf Nipple Product and Development of its Compound Formulation Based on Natural Rubber

2017 ◽  
Vol 744 ◽  
pp. 282-287
Author(s):  
Sarawut Prasertsri ◽  
Sansanee Srichan
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Calcium Carbonate ◽  
Carbon Black ◽  
Natural Rubber ◽  
Soxhlet Extraction ◽  
Rubber Compound ◽  
Rubber Compounds ◽  
Rubber Component

This research aimed to develop the formulation of natural rubber filled with carbon black, silica and calcium carbonate for rubber calf nipple application. The reverse engineering was performed on the calf nipple product to analyze the rubber type and component by using Soxhlet extraction, thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR) techniques. Furthermore, mechanical properties were examined to act as benchmark for the rubber compound design. The results showed that rubber component in the nipple product was natural rubber, whereas two filler types revealed as carbon black and calcium carbonate with 10 and 35 of the total weight. In addition, rubber nipple showed the hardness of 46±1 Shore A and tensile strength of 5.3±0.60 MPa. From the investigation of the properties of developed rubber compounds in this work, it was found that the mechanical properties depended on type and content of filler. The required mechanical properties of vulcanizates were achieved at 20 phr of carbon black (N330), 20 phr of silica and 120 phr of calcium carbonate.

Preparation and Characterization of Natural Rubber Composites Comprising Conductive Carbon Black/Magnetite Hybrid Fillers Obtained by Impregnation Technology

2016 ◽  
Vol 55 (13) ◽  
pp. 1344-1356
Author(s):  
Ahmed A. Al-Ghamdi ◽  
Omar A. Al-Hartomy ◽  
Falleh R. Al-Solamy ◽  
Nikolay Dishovsky ◽  
Diana Zaimova ◽  
...  
Keyword(s):  
Carbon Black ◽  
Natural Rubber ◽  
Rubber Composites ◽  
Conductive Carbon Black ◽  
Hybrid Fillers ◽  
Natural Rubber Composites

Synthesis and Characterization of Nano-Silver Incorporated Natural Rubber Latex Foam

2012 ◽  
Vol 51 (6) ◽  
pp. 605-611 ◽  
Author(s):  
Indrajith Rathnayake ◽  
Hanafi Ismail ◽  
Baharin Azahari ◽  
Nalin Dammika Darsanasiri ◽  
Sanath Rajapakse
Keyword(s):  
Natural Rubber ◽  
Natural Rubber Latex ◽  
Synthesis And Characterization ◽  
Rubber Latex ◽  
Nano Silver

Structural Characterization of Filled Vulcanizates Part 1. Determination of the Concentration of Chemical Crosslinks in Natural Rubber Vulcanizates Containing High Abrasion Furnace Black

1967 ◽  
Vol 40 (3) ◽  
pp. 866-882 ◽  
Author(s):  
M. Porter
Keyword(s):  
Carbon Black ◽  
Natural Rubber ◽  
Volume Fraction ◽  
Exponential Relationship ◽  
Furnace Black ◽  
Simple Linear Relationship ◽  
Chemical Crosslinks ◽  
Natural Rubber Vulcanizates

Abstract The degree to which HAF black restricts the swelling of natural rubber vulcanizates in n-decane has been determined using a vulcanizing system in which the stoichiometry of crosslinking is unaffected by the carbon black. The dependence of the degree of restriction, as measured by the ratio of the volume fractions of rubber in the filled and unfilled vulcanizates swollen to equilibrium, on the concentration of carbon black follows an exponential relationship previously proposed by Lorenz and Parks. This is found to be equivalent to a simple linear relationship between the apparent and actual crosslink concentrations: napparent/nactual=1+Kϕ, where K is a constant characteristic of the filler and φ is its volume fraction in the vulcanizate. The relation has been used to determine actual crosslink concentrations in filled natural rubber vulcanizates. HAF black is found to cause increases of up to 25 per cent in the yield of polymer to polymer crosslinks in conventional sulfur vulcanizing systems, accompanied by changes in rate of cure and of crosslink reversion. All these are small compared with the effect of the filler on many physical properties.

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