Results 221 to 230 of about 32,026 (313)

Gas check prevention during calendering of poly(vinyl chloride) films using poly(caprolactone)‐based additives

open access: yesJournal of Vinyl and Additive Technology, Volume 31, Issue 2, Page 441-452, March 2025.
Three poly(caprolactone) (PCL)‐based additives of differing molecular weights were used as a secondary plasticizer to prevent gas checks in PVC films produced through calendering. Results showed that chemical and physicochemical properties influence the prevention or reduction of gas checks, unlike rheological properties including complex viscosity and
Luis F. Alvarez   +4 more
wiley   +1 more source

Thickness Calculation of Pigment Layers and Gold Leaves Using XRF and MA‐XRF Data

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT In this work, XRF and MA‐XRF data were used to estimate the thickness of Chromium Oxide (Cr₂O₃) pigment and gold leaf applied over Lead White (2PbCO3.Pb(OH)2). The thickness determination was based on the differential attenuation of the Pb‐Lα and Pb‐Lβ characteristic X‐rays, which allows correlating the overlying material layer with the Pb(Lα ...
Renato Pereira de Freitas   +9 more
wiley   +1 more source

Identifying Clinical Variations Across NSW Public Dental Service: An Essential Step to Develop a Roadmap for Value‐Based Oral Healthcare

open access: yesAustralian Dental Journal, EarlyView.
ABSTRACT Objective This research examines the extent of clinical variation across the NSW public dental service, the largest in Australia. Findings may assist policy makers in reducing variation of care and inequity towards value‐based oral healthcare. Methods Four years of demographic and treatment data, for 741,450 patients between 1 July 2019 and 30
Albert Yaacoub, Tony Skapetis
wiley   +1 more source

Chemical Stability and Bond Strength of Endodontic Sealers Exposed to Acidic, Alkaline and Protein‐Rich Environments: An In Vitro Investigation

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT The sealing performance of endodontic sealers may be influenced by environmental factors such as pH and blood‐derived proteins. This in vitro study evaluated the effects of pH variation and protein contamination on calcium ion (Ca2+) release and push‐out bond strength (BS) of a calcium silicate‐based sealer (Bio‐C Sealer) and an epoxy resin ...
Walter Raucci‐Neto   +6 more
wiley   +1 more source

Thermosetting acrylic resin

open access: yesJournal of the Japan Society of Colour Material, 1964
openaire   +2 more sources

Influence of Drying Protocol on the Setting and Crystalline Phase Formation of Calcium Silicate‐Based Sealers

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT The objective of this study was to assess the hydration, crystalline structure, and setting of bioceramic ready‐to‐use and powder/liquid sealers in dry and wet root canal dentine. Thirty‐two single‐rooted human teeth were embedded in acrylic resin and sectioned into 2‐mm segments.
Thiago Bessa Marconato Antunes   +8 more
wiley   +1 more source

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