Surfactant-Based Photorheological Fluids: Effect of the Surfactant Structure

Langmuir ◽  
2009 ◽  
Vol 25 (10) ◽  
pp. 5467-5475 ◽  
Author(s):  
Piero Baglioni ◽  
Elena Braccalenti ◽  
Emiliano Carretti ◽  
Raimondo Germani ◽  
Laura Goracci ◽  
...  
Keyword(s):  
Photorheological Fluids

Nonaqueous Photorheological Fluids Based on Light-Responsive Reverse Wormlike Micelles

Langmuir ◽  
2010 ◽  
Vol 26 (8) ◽  
pp. 5405-5411 ◽  
Author(s):  
Rakesh Kumar ◽  
Aimee M. Ketner ◽  
Srinivasa R. Raghavan
Keyword(s):  
Wormlike Micelles ◽  
Photorheological Fluids

scholarly journals A Simple Class of Photorheological Fluids:  Surfactant Solutions with Viscosity Tunable by Light

2007 ◽  
Vol 129 (6) ◽  
pp. 1553-1559 ◽  
Author(s):  
Aimee M. Ketner ◽  
Rakesh Kumar ◽  
Tanner S. Davies ◽  
Patrick W. Elder ◽  
Srinivasa R. Raghavan
Keyword(s):  
Surfactant Solutions ◽  
Simple Class ◽  
Photorheological Fluids

Reversible Photorheological Fluids Based on Spiropyran-Doped Reverse Micelles

2011 ◽  
Vol 133 (22) ◽  
pp. 8461-8463 ◽  
Author(s):  
Hee-Young Lee ◽  
Kevin K. Diehn ◽  
Kunshan Sun ◽  
Tianhong Chen ◽  
Srinivasa R. Raghavan
Keyword(s):  
Reverse Micelles ◽  
Photorheological Fluids

Ultraviolet light-responsive photorheological fluids: as a new class of smart fluids

2017 ◽  
Vol 26 (5) ◽  
pp. 054007 ◽  
Author(s):  
Min-Young Cho ◽  
Ji-Sik Kim ◽  
Hyoung Jin Choi ◽  
Seung-Bok Choi ◽  
Gi-Woo Kim
Keyword(s):  
Ultraviolet Light ◽  
New Class ◽  
Smart Fluids ◽  
Photorheological Fluids

Phosphatidylcholine-based nonaqueous photorheological fluids: effect of geometry and solvent

2014 ◽  
Vol 292 (7) ◽  
pp. 1599-1609 ◽  
Author(s):  
Rekha Goswami Shrestha ◽  
Naoko Agari ◽  
Koji Tsuchiya ◽  
Kazutami Sakamoto ◽  
Kenichi Sakai ◽  
...  
Keyword(s):  
Photorheological Fluids

scholarly journals Photorheological fluids of azobenzene polymers for lubrication regulation

Friction ◽  
2021 ◽  
Author(s):  
Shuangxi Tang ◽  
Shayu Li ◽  
Liran Ma ◽  
Yu Tian
Keyword(s):  
Ultraviolet Light ◽  
Near Infrared ◽  
Practical Importance ◽  
Structural Difference ◽  
Molecular Structures ◽  
Infrared Light ◽  
Fluid Viscosity ◽  
Light Radiation ◽  
Near Infrared Light ◽  
Photorheological Fluids

AbstractFluid viscosity is ubiquitous property and is of practical importance in intelligent fluids, industrial lubrication, and pipeline fluid transportation. Recently, there has been a surging interest in viscosity regulation. Here, we have developed a group of photorheological fluids by utilizing azobenzene polymers with a light-induced microstructure transformation. In this work, a photosensitive polymer with 4,4′-bis-hydroxyazobenzene as the main chain was designed and synthesized as a pivotal functional material. The sufficiently large structural difference under ultraviolet and near-infrared light makes it possible to regulate the viscosity of a polyethylene glycol solution. The viscosity of the photosensitive rheological fluids under ultraviolet light radiation is found to be up to 45.1% higher than that under near-infrared light radiation. To explore this intelligent lubricating technology, the friction regulation of ceramic sliding bearings was investigated utilizing photosensitive rheological fluids. Reversible friction regulation with a ratio of up to 3.77 has been achieved by the alternative irradiation of near-infrared and ultraviolet light, which can be attributed to the differences in mechanical properties and molecular structures under ultraviolet and near-infrared light according to both simulations and experiments. Such photorheological fluids will have promising applications in controllable lubrication, intelligent rheological fluids, and photosensitive dampers.

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