Surface analytical studies of no-rinse paint pretreatments based on partially reduced chromic acid and colloidal silica

Treverton, J. A.; Bosland, A.

doi:10.1016/0010-938x(95)80005-0

Cited by 6 publications

(4 citation statements)

References 26 publications

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“…Hydrated silica can be easily dehydrated; therefore, silica gel has been widely used as a desiccant. It has also been actively used in the industrial production of paints, varnishes, beer, and flame retardants. − Hydrated silica is a common element found in personal care products such as cosmetics and toothpaste. The main advantage of hydrated silica in toothpaste is its abrasiveness.…”

Section: Nps For Tooth Whiteningmentioning

confidence: 99%

Nanoparticles as Next-Generation Tooth-Whitening Agents: Progress and Perspectives

et al. 2022

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Whitening agents, such as hydrogen peroxide and carbamide peroxide, are currently used in clinical applications for dental esthetic and dental care. However, the free radicals generated by whitening agents cause pathological damage; therefore, their safety issues remain controversial. Furthermore, whitening agents are known to be unstable and short-lived. Since 2001, nanoparticles (NPs) have been researched for use in tooth whitening. Importantly, nanoparticles not only function as abrasives but also release reactive oxygen species and help remineralization. This review outlines the historical development of several NPs based on their whitening effects and side effects. NPs can be categorized into metals or metal oxides, ceramic particles, graphene oxide, and piezoelectric particles. Moreover, the status quo and future prospects are discussed, and recent progress in the development of NPs and their applications in various fields requiring tooth whitening is examined. This review promotes the research and development of next-generation NPs for use in tooth whitening.

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Section: Nps For Tooth Whiteningmentioning

confidence: 99%

Nanoparticles as Next-Generation Tooth-Whitening Agents: Progress and Perspectives

et al. 2022

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“…However, chemical pretreatments are necessary as they provide for a clean surface devoid of oils and greases which the sheets pick up during manufacturing process. It also provides for good paint adhesion and gives good wetting properties 13,14,15,16…”

Section: Pretreatments Used For Metalsmentioning

confidence: 99%

“…Quantum mechanically subatomic particles (protons, neutrons and electrons) have spin. In some atoms (eg 12 C, 16 O, 32 S) these spins are paired and cancel each other out so that the nucleus of the atom has no overall spin. However, in many atoms ( 1 H, 13 C, 31 • An intense, homogeneous and stable magnetic field.…”

Section: Nuclear Magnetic Resonance Spectroscopymentioning

confidence: 99%

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Integral Epoxy Resin–Silane Primer System For Hot-Dip Galvanized Steel

Suryanarayanan

Silanes and Other Coupling Agents, Volume 4

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This work deals with the development of a non-chromate, one-step finishing system for corrosion protection of hot-dip galvanized steel. Environmental regulations demand that chromate pretreatments and chromate pigments used in primers be replaced. Previously the Silane Research Group has reported on the effectiveness of silane pretreatments and suggested silane formulations for replacing chromate pretreatments. In this project a pretreatment-free, chromate-free one-step finishing system was needed for hot-dip galvanized steel used in automotive coils in cars. Pretreatments act as adhesionpromoters and bind coatings to metals and since silanes, especially systems using bisamino silane and bis-sulfur silane, have been shown as excellent adhesion-promoters by this lab, the idea of incorporating silanes in primers for obtaining adhesion to metals emerged. Whether this also meant increased corrosion protection was investigated. The coating formulation exhibiting the best corrosion resistance is a mixture of hydrolyzed and non-hydrolyzed silanes incorporated into a commercial epoxy resincuring agent system. Salt spray analysis indicated that the coating exhibits good corrosion resistance. Impedance values were significantly higher for the integral resin-silane coating, as compared to the commercial resin. Impedance values of the integral primer coatings increased with time, as secondary curing reactions imparted by the presence of the non-hydrolyzed silane proceed. Due to the presence of the hydrolyzed silanes, the investigated coatings exhibited good adhesion to both the hot-dipped galvanized steel substrate and a polyester coating. Coating characterization was carried out using liquid and solid-state NMR and infra-red spectroscopy. It was found that bis-sulfur silane did not react during curing, it

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Effect of silica nano-particles on the performance of manganese-based conversion treatments

et al. 2008

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Surface analytical studies of no-rinse paint pretreatments based on partially reduced chromic acid and colloidal silica

Cited by 6 publications

References 26 publications

Nanoparticles as Next-Generation Tooth-Whitening Agents: Progress and Perspectives

Nanoparticles as Next-Generation Tooth-Whitening Agents: Progress and Perspectives

Integral Epoxy Resin–Silane Primer System For Hot-Dip Galvanized Steel

Effect of silica nano-particles on the performance of manganese-based conversion treatments

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