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Hydrogenated Nitrile Rubber for Improved Durability of Automotive Rubber Parts
SAE Technical Paper Series, 1987<div class="htmlview paragraph">Rubber articles with improved heat resistance and better performance characteristics are becoming of increasing importance for the automotive industry. A new type of elastomer has therefore been developed based on saturated hydrocarbon backbone - for improved heat resistance - with nitrile side groups providing ...
Jean Mirza +2 more
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Hydrogenation of nitrile-butadiene rubber latex with diimide
Applied Catalysis A: General, 2004Hydrogenation of nitrile-butadiene rubber latex via utilization of diimide was investigated by examining hydrogenation efficiency and hydrogenation degree. It has been found that the hydrogenation efficiency, which is defined as the ratio of the amount of hydrogen peroxide consumed for the hydrogenation to the total amount of hydrogen peroxide reacted,
Xinwang Lin, Qinmin Pan, Garry L. Rempel
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Determination of the Degree of Hydrogenation in Hydrogenated Nitrile-Butadiene Rubber (HNBR)
Rubber Chemistry and Technology, 1990Abstract A number of analytical techniques are available for the measurement of the residual unsaturation in HNBR polymers. However, to insure that high-quality HNBR products are produced, it is necessary to use a standard procedure throughout the industry which is quick, accurate, and precise.
A. J. Marshall +3 more
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Structure and Properties of Hydrogenated Nitrile Rubber/Organo-Montmorillonite Nanocomposites
Clays and Clay Minerals, 2010AbstractThe aim of the work was to study the effect of organo-montmorillonite (OMt) on the properties of hydrogenated nitrile rubber (HNBR)/OMt nanocomposites. The nanocomposites were prepared by a melt intercalation method. The structure of the composites was studied by transmission electron microscopy (TEM) and X-ray diffraction (XRD).
Gu, Zheng +4 more
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Homogeneous catalytic hydrogenation of liquid carboxylated nitrile rubber
Journal of Polymer Science Part A: Polymer Chemistry, 1992AbstractHomogeneous catalytic hydrogenation of olefinic bonds in liquid carboxylated nitrile rubber (L‐XNBR) has been carried out selectively in the presence of nitrile and carboxyl functionality using a six‐membered cyclopalladate complex of 2‐benzoyl pyridine as catalyst.
Susmita Bhattacharjee +2 more
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High-pressure hydrogenation of nitrile rubber: thermodynamics and kinetics
Industrial & Engineering Chemistry Research, 1991Homogeneous catalytic hydrogenation of nitrile rubber (NBR) having various acrylonitrile contents was carried out with tris(triphenylphosphine) chlororhodium(I) under high pressure. Optimum reaction conditions were developed by varying the reaction parameters ― temperature, time, pressure, catalyst concentration, and ...
Susmita Bhattacharjee +2 more
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Homogeneous Hydrogenation Art of Nitrile Butadiene Rubber: A Review
Polymer Reviews, 2013Hydrogenation of nitrile butadiene rubber (NBR) is an important research topic in the field of chemical modification of unsaturated polymers. This review provides an overview of the fundamental data, challenges, and recent advances in the research area of homogeneous hydrogenation of NBR.
Hui Wang, Lijuan Yang, Garry L. Rempel
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Vulcanization and properties of hydrogenated nitrile rubber/nitrile rubber blends
The HNBR/NBR blends were prepared at ratios of 100/0, 90/10, 80/20 and 70/30 (wt%). The compounds by using a two-roll mixing mill at various ratios filled with two types of carbon black loading, GPF N-660 and SRF N-774 (fixed at 50 phr) were cured by three vulcanization systems: conventional vulcanization, efficient vulcanization and peroxide ...openaire +1 more source
A New Method to Hydrogenate Nitrile Rubber in the Latex Form
Rubber Chemistry and Technology, 1995Abstract A water soluble analog of Wilkinson catalyst — chloro-tris-(sodium diphenylphosphino-benzene-m-sulfonate) rhodium(I), CAS 67178-14-7, i.e. RhCl(DPM)3— has been found to hydrogenate NBR latex. More than 60 mol% hydrogenation can be achieved at 75°C and 1 atmosphere hydrogen pressure.
SINGHA, NK, SIVARAM, S, TALWAR, SS
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Improvements in the Hydrogenation of Nitrile Rubber Using Wilkinson's Catalyst
Rubber Chemistry and Technology, 2008Abstract RhCl(PPh3)3 is an efficient catalyst precursor for the selective hydrogenation of C=C in acrylonitrile butadiene rubber(“nitrile rubber”, NBR). The established technology for the process using RhCl(PPh3)3 is to carry out reaction in the presence of a large excess of triphenylphosphine (PPh3), with monochlorobenzene (MCB) as solvent. In
N. T. McManus, G. L. Rempel
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