Results 61 to 70 of about 138,734 (308)

Tribological Properties of Polypropylene Adipate Base Oil Containing In Situ Catalytically Dispersed Spherical Nano-MoS2/Sericite

open access: yesTribology Online
Polyester base oil has good lubricating properties and biodegradability, which meets the requirements of green and sustainable development. In this work, polypropylene adipate (PPA) was synthesized with spherical nano-MoS2/sericite (SMS) as catalyst. SMS
Yating Xia   +3 more
doaj   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz   +3 more
wiley   +1 more source

Analyzing Pentaerythritol Stearate Homologs with NMR Spectroscopy

open access: yesChinese Journal of Magnetic Resonance, 2018
A pentaerythritol stearate sample with unknown composition was analyzed by nuclear magnetic resonance (NMR) spectroscopy (i.e., 1H NMR, quantitative 13C NMR, DEPT135, 1H-1H COSY, 1H-1H NOESY, 1H-13C HSQC and 1H-13C HMBC).
LI Chun-fa   +3 more
doaj   +1 more source

A new solid lubricant [PDF]

open access: yes, 1969
Friction and wear life studies on burnished films of the compound graphite fluoride have demonstrated its potential as a solid lubricant material. It is effective in moist air, dry air, or in dry argon at temperatures up to approximately 400 degrees ...
Fusaro, R. L., Sliney, H. E.
core   +1 more source

The measurement of lubricant-film thickness using ultrasound [PDF]

open access: yes, 2003
Ultrasound is reflected from a liquid layer between two solid bodies. This reflection depends on the ultrasonic frequency, the acoustic properties of the liquid and solid, and the layer thickness.
Astridge D. G.   +6 more
core   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

open access: yesAdvanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

Tribological Performance Comparison of Lubricating Greases for Electric Vehicle Bearings

open access: yesLubricants
EV motors and machine elements operate at higher speeds, generate significant heat and noise (vibration), and subject lubricants (bearings) to multiple degrading factors, requiring thermal stability, wear protection, mitigating wear mechanisms like ...
Deepika Shekhawat   +4 more
doaj   +1 more source

Fluid lubricant system Patent [PDF]

open access: yes, 1968
Lubrication for bearings by capillary action from oil reservoir of porous ...
Belanger, R. J., Heindl, J. C.
core   +1 more source

In Situ 3D Bioprinting: Impact of Cross‐Linking on the Adhesive Properties of Hydrogels

open access: yesAdvanced Functional Materials, EarlyView.
In situ 3D bioprinting enables the direct deposition of cell‐laden, adhesive biomaterials for on‐site tissue regeneration. This review provides a comprehensive overview of how cross‐linking influences the bioadhesive properties of hydrogels used in 3D bioprinting, highlighting cross‐linking triggers, bioadhesion mechanisms, polymer interpenetration ...
Odile Romero Fernandez   +4 more
wiley   +1 more source

Development and Verification of a Vapor–liquid Equilibrium Experimental System for Refrigerants/Lubricants

open access: yesZhileng xuebao, 2020
To measure the vapor-liquid equilibrium (VLE) of refrigerants/lubricants, a refrigerants/lubricants VLE experimental system with high precision was developed based on the cycle method. The circulation system was equipped with a detachable sample tank. It
Zhang Chaoshi   +3 more
doaj  

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