Water Soluble Thickeners for Industrial and Ecofriendly …
PAM chemistry was highly effective in both thickening water to ISO 46 and 460 with high VI despite low wt% polymer. The very high MW (1-10M) raises shear stability concerns which …
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Novethix HC220S polymer
It is suitable for thickening mild surfactant systems, dilutable concentrate systems as well as disinfectant cleaners containing cationic biocides. Novethix™ HC220S polymer is not compatible with lipase. Features and Benefits. Compatible with broad surfactant systems; Provides crystal clear systems; Synergistic thickening with electrolytes
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How Polymers Behave as Viscosity Index Improvers in …
Viscosity-boosting effects of polymer additives in automotive lubricants; Polymer Bulletin, 2023 [11] Temperature Dependence of Viscoelasticity of Lubricating Oil with Adsorptive Polymer Additives Sheared in Nanogaps ... Prediction of thickening efficiency of olefin copolymers and kinematic viscosities of the blended base oils by determining ...
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Review of Viscosity Modifier Lubricant Additives
Thickening efficiency describes the amount of polymer that has to be used in a given lubricant formulation and is quantified as the polymer treat rate required to reach a desired viscosity. Here we use the definition of thickening efficiency as the polymer treat rate to achieve a given kinematic viscosity at 100 C [3].
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Solid Polymers
Solid Polymers. Lubricant Additives; Additives; Environ Speciality Chemicals Pvt. Ltd. Solid Polymers; Solid Polymers. Bale Form OCP Based Polymers. SSI Value. Thickening Efficiency. Remarks. 24-25. 1100 ± 200 cSt @ 12%. Low Ethylene Content Polymer having Excellent Cold Flow Properties. 24-25. 1400 cSt @ 13%.
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New lubricant additives save fuel
These specialty polymers exhibit outstanding properties as temperature-sensitive thickening agents in lubricants. By forming coil like structures in the lubricant, comb polymers are able to influence lubricant viscosity: the polymeric coils expand considerably at elevated temperatures, thus thickening the lubricant more than traditional ...
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Viscosity & Viscosity Modifiers
• Viscosity modifiers in crankcase lubricants are polymers • VM's are used in most engine oils and many transmission fluids ... – Cost to achieve required thickening (Cost vs. TE) – Shear Thinning Properties – Low Temperature Properties • Other performance harms/credits
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Novethix HC220 polymer
It is suitable for thickening mild surfactant systems, dilutable concentrate systems as well as disinfectant cleaners containing cationic biocides. Novethix™ HC220 polymer is not compatible with lipase. Features and Benefits. Compatible with broad surfactant systems; Provides crystal clear systems; Synergistic thickening with electrolytes
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Thickeners & quenching polymers
Thickeners & quenching polymers Clariant is one of the world's leading suppliers of water-soluble polyalkylene glycols used as thickening agents for fire-resistant hydraulic fluids (HFC, HFC-E) and polymer quenchants.
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Thermoresponsive Polymers as Viscosity …
VMs are high molecular weight polymer-based additives able to enhance the lubricant's ability to maintain optimal viscosity, shear resistance and shear thickening behavior across a wide temperature range. VMs can be …
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Type of the Paper (Article
Thickening Efficiency, and Traction Coefficient of Lubricants Pawan Panwar 1, Emily Schweissinger 2, Stefan Maier 2, Stefan Hilf 2, Sofia Sirak 2, and Ashlie Martini ... Polymers in lubricants are used to serve range of purposes and perform their function through a variety of .
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Effect of polymer structure and chemistry on viscosity index
The chemistry and structure of base oil and polymer additive molecules in lubricants directly affect key performance metrics such as viscosity index, thickening efficiency, and …
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CRUSHER SPIDER BUSHING LUBRICANT
High viscosity lubricant designed with superior mobility allowing the lubricant to effectively coat the shaft and bushing, extending component life while reducing consumption ... Does not use polymer thickening agents ; Environmentally friendly formulation does not contain chlorinated solvents or lead and is free of all known carcinogens;
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Thickening Agents
Ambergum™ 3021 water-soluble polymer by Ashland Specialty Chemical is a pigment dispersant, binder, solubilizer, liquid thickener, wetting & flow-control agent and protective colloid. ... I by Baerlocher is a medium bulk density, high quality grade of lithium stearate. Acts as a medium density gellant, thickening agent, lubricant and ...
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Viscosity Index Improvers and Thickeners
Viscosity index improvers, VIIs, are comprised of five main classes of polymers: polymethylmethacrylates (PMAs), olefin copolymers (OCPs), hydrogenated poly (styrene-co-butadiene or isoprene) (HSD/SIP/HRIs), …
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Carbopol 676 polymer
Carbopol® 676 polymer. Carbopol® 676 polymer is a highly crosslinked polyacrylic acid polymer. It has short flow characteristics and relatively high viscosity performance. It is recommended for use in automatic dish care, hard surface cleaners, home care cleaning systems, and other common industrial systems.
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Exploring the roles of roughness, friction and adhesion in
Understanding shear thickening in colloidal suspensions is of great practical importance. Hsu et al. create responsive polymer-coated silica particles whose rheology can be tuned in situ ...
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Composition, Properties, and Structure of Low-Temperature …
It is known that the disperse phase for polymer lubricants can cover a wide range of polymers, copolymers, ... At the first stage of the investigation the thickening power of the polypropylene in various dispersion media was investigated with a mass ratio of low- and high-molecular polymers of 60:40. Increase of the concentration of polymeric ...
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Core-Crosslinked Star Copolymers as Viscosity Index …
As polymer additives are one of the most expensive components of a lubricant formulation, it is highly desirable to develop additives with high thickening efficiency. Moreover, polymeric additives undergo mechanical shear-induced chain breaking reactions, which determine a decrease of the lubricant viscosity.
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Effect of polymer structure and chemistry on viscosity index
The chemistry and structure of base oil and polymer additive molecules in lubricants directly affect key performance metrics such as viscosity index, thickening efficiency, and traction coefficient.
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Effect of polymer structure and chemistry on viscosity index
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Multiscale study on the solid-liquid synergistic lubrication …
Polymer based self-lubricating materials are widely used in aerospace, mechanical engineering, as well as other major industrial fields due to their excellent properties such as lightweight, low friction, low wear and good formability and processibility [[1], [2], [3]].A polymer self-lubricating material, usually used as a matrix, should possess good mechanical properties …
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Effect of polymer structure and chemistry on viscosity index
Another important metric is thickening efficiency (TE) that describes the amount of polymer (that is, polymer treat rate) required in a lubricant formulation to reach either a desired kinematic viscosity or dynamic viscosity at a temperature of 100 °C [7].
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Carbopol EZ-4 polymer
Carbopol® EZ-4 polymer. Carbopol® EZ-4 polymer is a self-wetting hydrophobically-modified moderately crosslinked acrylic acid copolymer designed to impart thickening, stabilizing and suspension properties to a wide range of applications.
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Lubrication by charged polymers
Figure 3: Variation of the effective friction coefficient µ eff with volume fraction φ of confined polymer for different polymer lubricants. Similar content being viewed by others.
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Effect of Polymer Structure and Chemistry on Viscosity …
Thickening Efficiency, and Traction Coefficient of Lubricants Pawan Panwar 1, Emily Schweissinger 2, Stefan Maier 2, Stefan Hilf 2, Sofia Sirak 2, and Ashlie Martini ... These studies demonstrate that there is a wide range of functionality and behavior of polymers in lubricant formula-tions. The structure and chemistry of the polymers vary ...
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Lowering the Temperature of Gear Oils with …
What is a Performance Polymer? PPs are a versatile class of polymers . with unique architecture that offer supe-rior thickening efficiencies, low trac-tion coefficients and high shear stabil-ity. Depending on the end use applica-tions, PPs can be used both as viscosity . Lowering the Temperature of Gear Oils . with Performance Polymer Technology
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The Role Of Polymers As Viscosity Index Improvers In …
Polymers serve as essential viscosity index (VI) improvers, enhancing the performance of lubricants by stabilizing their viscosity across varying temperatures.
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Asteric Viscosity Modifiers
Asteric VMs provide much greater Viscosity Index increase per unit treat rate and thickening. Asteric VMs can more easily achieve very high finished fluid VI compared to conventional …
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Shear Stability and Thickening Properties of Homo and …
taken as the extent of interaction of the polymer with the base stock, greater the thickening property; greater is the extent of interaction[1]. Fuel economy may also be predicted by the thickening power of a lube oil additive. All the polymers were synthesized by following the method as reported earlier[2] and characterized on the basis
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