Results 1 to 10 of about 1,774 (282)

Viscosity Index Improver for Engine Oils: An Experimental Study [PDF]

open access: yesJournal of Chemical and Petroleum Engineering, 2017
Engine oils are widely used for lubrication purposes in automobile and related industries. Viscosity Index (VI) improver has found its largest commercial applications as additives to engine oils.
Gaurav Rattan, Nitu Singh Parihar
doaj   +5 more sources

Structural and viscosity studies of dendritic hyper branched polymer as viscosity index improvers [PDF]

open access: yesBMC Chemistry
Star-like structural compounds were synthesized from different moles % of either dodecyl acrylate or triethylenetetramine using a one-pot commercial synthesis technique. The polymers that were created had various terminations. Fourier Transform Infrared (
Reham I. El-shazly   +2 more
doaj   +4 more sources

Evaluation of newly copolymers and their montmorillonite nanocomposite as cold flow improver for petroleum lubricating oil [PDF]

open access: yesScientific Reports, 2023
The great demand on the energy makes the attention toward modifying lubricating oil. This work tends to prepare the following copolymers; octadecylmethacrylate-co-dodecene (CP1) and octadecylmethacrylate-co-hexadecene (CP2) by free radical solution ...
Alshaimaa H. El-Bahnasawi   +6 more
doaj   +2 more sources

Efektivitas karet alam termoplastik sebagai peningkat indeks viskositas minyak pelumas kendaraan [PDF]

open access: yesMajalah Kulit, Karet, dan Plastik, 2016
Diversification of rubber goods are highly needed to enhance natural rubber domestic consumption. One of the efforts is by using thermoplastic natural rubber that is synthesized from emulsion graft copolymerization of natural rubber latex with ...
Santi Puspitasari   +2 more
doaj   +3 more sources

"Research summary on hydrogenated styrene-diene copolymer viscosity index improver"

open access: yesHecheng xiangjiao gongye, 2023
The development history, market overview and development status of viscosity index improver for hydrogenated styrene-diene copolymer at home and abroad were systematically summarized with 38 references, and the basic classification, performance ...
LI Wei-tian, WANG Qin-fang, ZHANG Wang, DONG Jing, ZHANG Hua-qiang
doaj   +2 more sources

Effect of Processing Conditions of Enzymatic, Extrusion, and Hybrid Treatment Methods on Composition and Selected Technofunctional Properties of Developed Wheat Flour [PDF]

open access: yesInternational Journal of Food Science
In this study, wheat flour characterized by a high content of nonstarch polysaccharides was fortified with enzymes and then subjected to low temperature (up to 85°C) extrusion cooking treatment.
Piotr Lewko   +2 more
doaj   +2 more sources

The Hydrodynamic Radii of Viscosity Index Improvers for Lubricant Oils

open access: yesTribology Online, 2019
Viscosity index improvers are polymeric additives that are commonly used to control the viscometrics of lubricants. Nevertheless, there have been few studies on the molecular size of these additives, which is the origin of their viscosity-increasing ...
Kazushi Tamura, Taeko Nakano
doaj   +3 more sources

On the Performance of Pivoted Curved Slider Bearings: Rabinowitsch Fluid Model [PDF]

open access: yesTribology in Industry, 2012
The present theoretical analysis is to investigate the effect of nonNewtonian Pseudoplastic & Dilatant lubricants (lubricant blended with viscosity index improver)–Rabinowitsch fluid model on the dynamic stiffness and damping characteristics of pivoted ...
U.P. Singh, R.S. Gupta, V.K. Kapur
doaj   +2 more sources

Prediction of thickening efficiency of olefin copolymers and kinematic viscosities of the blended base oils by determining intrinsic viscosities of the copolymers in cyclohexane

open access: yesEgyptian Journal of Petroleum, 2022
The engine oil contains various performance additives along with polymer-based viscosity index improver, which are made from special types of flexible long chain polymers whose functionality is derived from their thickening efficiency, viscosity ...
M.S. Negi   +4 more
doaj   +1 more source

Influence of Some Additives on the Efficiency of Viscosity Index Improver for Base Lubricating Oils

open access: yesJournal of Engineering, 2023
The effects of three different additives formulations namely Lubrizol 21001, HiTEC 8722B and HiTEC 340 on the efficiency of VII namely OCP of three base lubricating oils namely 40 stock and 60 stock and 150 stock at four temperatures 40, 60, 80 and ...
Talib Bahjat Kashmoula   +1 more
doaj   +1 more source

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