DBHP-Functionalized ZnO Nanoparticles with Improved Antioxidant Properties as Lubricant Additives

Langmuir : the ACS Journal of Surfaces and Colloids
Lina HuangPingyu Zhang

Abstract

In this article, 3-(3,5-di- tert-butyl-4-hydroxyphenyl) propionic acid (DBHP)-functionalized ZnO (DBHP-ZnO) nanoparticles were synthesized by decomposing the organometallic precursor Zn(DBHP)2 under alkaline conditions. This in situ surface modification method can induce small-sized ZnO nanoparticles (5 nm) and form strong linkage between DBHP and ZnO nanoparticles. DBHP as an organic compound hindered phenol antioxidant that not only improved the dispersion stability of the prepared DBHP-ZnO nanoparticles in the lubrication oil but also scavenged free radicals produced during the oxidation process of oil. Compared with DBHP, the thermal stability of the prepared composite antioxidant was greatly enhanced by introducing inorganic ZnO nanoparticles, which was proved by the results of the thermogravimetric analysis test. A rotary oxygen bomb test, pressurized differential scanning calorimetry, and free-radical-scavenging method all showed that DBHP-ZnO nanoparticles had better antioxidant properties than DBHP under high temperature in the base oil of di- iso-octylsebacate (DIOS). The activation energy of the oxidation process was used to analyze this result by the model-free methods, including the Flynn-Wall-Ozawa method and the ...Continue Reading

References

Oct 24, 2001·Chemico-biological Interactions·M ReedD C Thompson
Jan 23, 2003·Journal of Agricultural and Food Chemistry·Pascale GoupyOlivier Dangles
Jul 21, 2006·The Journal of Physical Chemistry. B·Tamar AndelmanStephen O'Brien
Sep 28, 2006·Journal of Agricultural and Food Chemistry·Brajendra K SharmaSevim Z Erhan
Aug 22, 2007·Journal of Agricultural and Food Chemistry·Arda SerpenVural Gökmen
Nov 6, 2012·ACS Applied Materials & Interfaces·Yiannis DeligiannakisSotiris E Pratsinis
Jul 31, 2013·Colloids and Surfaces. B, Biointerfaces·Dhaneswar DasSwapan Kumar Dolui
Dec 3, 2014·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·D SureshH Nagabhushana
Oct 28, 2015·Nanoscale·Georgios A SotiriouYiannis Deligiannakis
Dec 2, 2015·Physical Chemistry Chemical Physics : PCCP·Ting GongHao Feng

❮ Previous
Next ❯

Citations

Jan 21, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Michel P de HaanHan Zuilhof

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.