Results 171 to 180 of about 7,414 (245)

Homogeneous catalytic hydrogenation of liquid carboxylated nitrile rubber

Journal of Polymer Science Part A: Polymer Chemistry, 1992
AbstractHomogeneous 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, Anil K. Bhowmick, B. N. Avasthi   +2 more
openaire   +1 more source

Comparative Study on the Application of Hydrogenated Nitrile Rubber (HNBR) and Ethylene Propylene Diene Monomers (EPDM) in the Sealing Materials of Lithium Batteries

Electrical Materials and Applications
The effects of the dosage of calcined kaolin on the processing performance, vulcanisation characteristics and basic mechanical properties of hydrogenated nitrile butadiene rubber (HNBR) and ethylene propylene diene monomer (EPDM) were preliminarily ...
Fangzheng Mu, Hang Yin, Xiaosheng Liu, Jingkai Nie, Jiayong Xu, J. Kadlcak, Guangyong Liu   +6 more
semanticscholar   +1 more source

Hydrogenated butadiene-nitrile rubber elastomers: research of functional properties

Voprosy Materialovedeniya, 2021
The subject of the study were rubbers based on partially and fully hydrogenated nitrile-butadiene rubbers (HNBR) Therban АТ 5065 VP and Therban АТ 5005 VP, taken individually and in the ratios 80:20, 70:30, 60:40, 50:50 accordingly. The purpose of the work was to study the functional properties of rubbers based on HNBR of various degrees of ...
E. A. Khorova, E. N. Eremin, E. A. Strizhak   +2 more
openaire   +1 more source

Strain-induced crystallization ability of hydrogenated nitrile butadiene rubber

, 2017
International audienceStrain-Induced Crystallization (SIC) phenomenon in elastomers is widely investigated, especially for natural rubber. It is considered as a major reinforcement mechanism explaining the very good mechanical properties of natural ...
K. Narynbek Ulu, M. Dragičević, P.-A. Albouy, B. Huneau, A.-S. Béranger, P. Heuillet   +5 more
openaire   +2 more sources

High-pressure hydrogenation of nitrile rubber: thermodynamics and kinetics

Industrial & Engineering Chemistry Research, 1991
Homogeneous 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, Anil K. Bhowmick, B. N. Avasthi   +2 more
openaire   +1 more source

Homogeneous Hydrogenation Art of Nitrile Butadiene Rubber: A Review

Polymer Reviews, 2013
Hydrogenation 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
openaire   +1 more source

Modification of hydrogenated nitrile rubber with N,N′‐bismaleimide‐4,4′‐diphenylmethane to improve its resistance to heat aging and reduce its compression set

Journal of Applied Polymer Science
This paper delves to improve the upper‐limit temperature of hydrogenated nitrile rubber (HNBR) through regulation of the vulcanization process, filler system and cross‐linking additive. The tensile test and scanning electron microscope images showed that
Mingjie Yao, Ping Tao, Liangyan Wang, Chunming Wang, Jiarui Hou, Yongliang Zhu, Dengchao Jiang, Yiwu Quan   +7 more
semanticscholar   +1 more source

A hyper-viscoelastic constitutive model for elastomers: A case study of hydrogenated nitrile butadiene rubber and polychloroprene rubber

Journal of Elastomers & Plastics, 2023
Elastomer materials are widely used as shock absorbers in a variety of practical applications including the automotive, aerospace, marine industries and structures.
Romi Dhakad, Dattatraya R Hipparkar, Anil Kumar, S. Chandel   +3 more
semanticscholar   +1 more source

Polyvinylidene Fluoride/Hydrogenated Nitrile Rubber-Based Flexible Electroactive Polymer Blend and Its Nanocomposites with Improved Actuated Strain: Characterization and Analysis of Electrostrictive Behavior

, 2020
A polyvinylidene fluoride (PVDF)/hydrogenated nitrile rubber (HNBR)-based flexible electroactive polymer blend was developed by generating a suitable morphology that showed a judicious combination of strength and flexibility.
Subhabrata Saha, A. Bhowmick, Ajeet Kumar, K. Patra, P. Cottinet, K. Thetpraphi   +5 more
semanticscholar   +1 more source

Improvements in the Hydrogenation of Nitrile Rubber Using Wilkinson's Catalyst

Rubber Chemistry and Technology, 2008
Abstract 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
openaire   +1 more source