Results 101 to 110 of about 18,640 (151)

Imidazolium-based ionic liquids used as additives in the nanolubrication of silicon surfaces. [PDF]

Beilstein J Nanotechnol, 2017
Amorim PM, Ferraria AM, Colaço R, Branco LC, Saramago B.   +4 more
europepmc   +1 more source

Microcapsule Techniques to Emphasize Functional Plant Oil Quality and Their Applications in the Food Industry: A Review. [PDF]

Foods
Zhang Z, Li F, Zhang Z, Muhmood A, Li S, Liu M, Zhou S, Du Z, Ruan C, Sun J.   +9 more
europepmc   +1 more source

Fouling of Reverse Osmosis (RO) and Nanofiltration (NF) Membranes by Low Molecular Weight Organic Compounds (LMWOCs), Part 1: Fundamentals and Mechanism. [PDF]

Membranes (Basel)
Maeda Y.
europepmc   +1 more source

Recent Research Progress on Polyurethane Solid-Solid Phase Change Materials. [PDF]

Polymers (Basel)
Wang Z, Xiao J, Yao T, Wang M.
europepmc   +1 more source

Enhancement of polyurea grease performance through graphene oxide-functionalized polyurea thickeners: A novel hydrogen-bond network approach

Tribology International
In conventional grease formulations, thickeners and additives are added as distinct components. This study introduces a method that integrates graphene oxide (GO) functionalized polyurea thickeners, creating a unified structure of polyurea and GO. The impact of GO functionalized polyurea on the rheological and lubrication performance of polyurea grease
Xiaoqiang Fan, Martin Dienwiebel, Changjiang Zhou   +2 more
exaly   +5 more sources

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Impact of polyurea structure on grease properties

Lubrication Science, 2010
AbstractThe thickener structure of polyurea grease has a crucial effect on its properties. Therefore, it is very important to study the relationship between a thickener structure and physical and performance properties. In this study, polyurea greases were synthesised, having a different number of urea groups in per polyurea thickener molecule ...
Lei Liu
exaly   +2 more sources

The effect of preparation and characterisation of polyurea grease

Materials Research Innovations, 2015
AbstractThere are many factors that affect the performance of polyurea grease, such as gelatiniser, base oil, additives, material production process and the formulations. In this study, the preparation of polyurea grease is mainly investigated by changing the production process, which include the refining temperature, the mode of adding of cooling oil,
X. Z. Dai, P. Guo, D. M. Hong, J. D. Hui, Z. M. Hui, F. Geng   +5 more
exaly   +2 more sources

High temperature greases based on polyurea gellants: A review

Journal of Synthetic Lubrication: Research, Development and Application of Synthetic Lubricants and Functional Fluids, 1987
AbstractThere is increasing demand for high temperature greases capable of operating in the range of 175–235°C. In this paper, one type of grease, polyurea, is described, and its preparation given, in terms of raw materials, temperature, solvents, base fluids including synthetics, catalysts, additives and thickeners.
P S Venkataramani
exaly   +2 more sources

The effect of additives on tribological behaviours in polyurea grease

Materials Research Innovations, 2015
AbstractGraphite, fluorography polymer, polytetrafluoroethylene, molybdenum disulphide and hexagonal boron nitride were used as additives for making polyurea grease. The effects of different additives and combinations of additives on the properties of polyurea grease were investigated.
M. Y. Wen, P. Guo, J. D. Hui, Z. M. Hui, F. Geng   +4 more
exaly   +2 more sources

Synthetic polyurea extreme-pressure greases

Journal of Synthetic Lubrication: Research, Development and Application of Synthetic Lubricants and Functional Fluids, 2004
AbstractThis paper describes the preparation of synthetic polyurea greases and evaluates their performance. The polyurea greases were prepared in situ by reacting diisocyanate with monoamines and ethylene diamine in the presence of a synthetic base oil (polyalphaolefin).
T Singh
exaly   +2 more sources