Results 11 to 20 of about 249,354 (368)

PLA/WOOD BIOCOMPOSITES: IMPROVING COMPOSITE STRENGTH BY CHEMICAL TREATMENT OF THE FIBERS [PDF]

open access: yes, 2013
A resol type phenolic resin was prepared for the impregnation of wood particles used for the reinforcement of PLA. A preliminary study showed that the resin penetrates wood with rates depending on the concentration of the solution and on temperature ...
Acha   +44 more
core   +1 more source

Comparison of shear bond strength of etch and rinse, self-etch adhesive system followed by flowable composite resin, and self-adherent composite resin

open access: yesPadjadjaran Journal of Dentistry, 2020
Introduction: The adhesive system strongly influences the bond strength of resin composite to the tooth surface. Aside from the commonly used etch and rinse, and self-etch adhesive system and a new approach called self-adherent composite resin to combine
Myrna Nurlatifah Zakaria   +4 more
doaj   +1 more source

Preparation and Characterizations of Composite Material Based on Carbon Fiber and Two Thermoset Resins

open access: yesMATEC Web of Conferences, 2017
In the present investigation, we used two types of thermoset resins (epoxy resin and phenol formaldehyde resin) with carbon fiber (CF) to produce composite materials.
Fouda Hany, Guo Lin, Elsharkawy Karim
doaj   +1 more source

Improving the surface insulating performance of epoxy resin/Al(2)O(3) composite materials by extending chain of liquid epoxy resin with Me-THPA

open access: yesHigh Voltage, 2019
Basin-type insulators are made by epoxy resin composite materials. Curing defects are easily formed in basin-type insulators, and degrade their insulating performances.
Yushun Zhao   +6 more
doaj   +1 more source

Temperature rise beneath a light–cured materials using two types of curing machines [PDF]

open access: yesAl-Rafidain Dental Journal, 2006
Aim: To measure the temperature rise induced by a light emitting diode (LED) curing unit and by quartz tungsten halogen (QTH) curing unit using two types of composite resin XRV Herculite and Venus.
Sabah A Ismail, Abdul–Haq A Suliman
doaj   +1 more source

Fracture resistance and flexural strength of endodontically treated teeth restored by different short fiber resin composites: a preclinical study

open access: yesBulletin of the National Research Centre, 2022
Aim To evaluate the effect of using different short fiber-reinforced resin composites on fracture resistance and flexural strength of endodontically treated tooth and compare it with nano-filled resin composite.
Wael Gamal, Ahmed Abdou, Ghada A. Salem
doaj   +1 more source

Development of Novel Antimicrobial Dental Composite Resin with Nano Cerium Oxide Fillers

open access: yesInternational Journal of Biomaterials, 2022
Objectives. To assess the antibacterial efficacy of experimental dental composite resin with cerium oxide nanoparticles as fillers. Methods. The cerium oxide nanoparticles were prepared by the coprecipitation procedure.
Eldho Jijy Varghese   +2 more
doaj   +1 more source

Erosion of Composite Resins [PDF]

open access: yesJournal of Dental Research, 1980
The surface degradation of composite resins caused by accelerated aging was studied. Accelerated aging for 900 hours caused erosion of the resin matrices and exposure of filler particles. Differences in surface profiles after aging suggest that the materials eroded at different rates. Accelerated aging may model erosive wear of composites.
Powers, John M., Fan, P. L.
openaire   +3 more sources

PENYERAPAN AIR DAN KELARUTAN RESIN KOMPOSIT TIPE MICROHYBRID, NANOHYBRID, PACKABLE DALAM CAIRAN ASAM

open access: yesODONTO: Dental Journal, 2018
Background: Composite resin is the most widely used restoration material. This material is composed of several materials such as polymer matrix, fller particles and silane coupling agents.
Arlina Nurhapsari   +1 more
doaj   +1 more source

Resin composite restorative materials [PDF]

open access: yesAustralian Dental Journal, 2011
AbstractThis paper surveys the most important developments in resin‐based dental composites and focuses on the deficits (e.g. polymerization shrinkage) and strengths of the materials and their clinical implications. Moreover, differences between composite categories, such as hybrid, nanohybrid, microfilled, packable, ormocer‐based, silorane‐based ...
N, Ilie, R, Hickel
openaire   +2 more sources

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