Surface modification of quartz fibres for dental composites through a sol-gel process

Wang, Yazi; Wang, Renlin; Habib, Eric; Wang, Ruili; Zhang, Qinghong; Sun, Bin; Zhu, Meifang

doi:10.1016/j.msec.2016.12.124

Cited by 26 publications

(30 citation statements)

References 19 publications

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“…However, the hydrolytic instability of the silicate glass fibers 3) , hydrolysis of the silane coupling agent and plasticisation of the polymer matrix in presence of moisture, compromise the interfacial adhesion between fibers and the polymer matrix deemed to cause the mechanical deterioration of these posts 4) . Numerous surface treatments have been attempted to overcome the problems associated with fiber-matrix debonding on hydration, for example glass fibers co-coated with polymethyl methacrylate (PMMA)/polydopamine (PDA) 5) and quartz fibers surface modified with a sol-gel method 6) yielded improvement in mechanical properties, however moisture sensitivity is reported over 4 weeks and no data on fatigue behavior. In a clinical situation, although the intracanal posts are entombed by other restorative materials, which prevent or reduce their direct contact with fluids, their structure may still be affected on cyclic loading and the induced stresses.…”

Section: Introductionmentioning

confidence: 99%

Semi-interpenetrating network composites reinforced with Kevlar fibers for dental post fabrication

et al. 2019

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This study evaluates the reinforcement of semi-interpenetrating network composites of 2,2-bis[4-(2-hydroxy-3-methacryloyloxypropyl)phenyl] propane (Bis-GMA)/ triethyleneglycol dimethacrylate (TEGDMA)/polymethyl methacrylate (PMMA) and 25% titanium dioxide (TiO2) nanofiller with surface treated Kevlar fibers for potential application as dental posts. The post material was subjected to thermo-cycling and flexural strength determined, characterised by dynamic mechanical analysis, water sorption, radiopacity and cytotoxicity tests. The results were compared with everStick ® POST. Kevlar pre-treatment with acetic acid and silane coupling agent demonstrated a clear effect on the flexural strength of the composites with a significant increase compared to composites with fibers without surface treatment. The inclusion of TiO2 into the final formulation provided the desired radiopacity and improved both aesthetics and flexural strength, which exhibits a higher resistance on thermocycling. The ratios of fatigue limit to static flexural strength were about 0.73 for Kevlar and 0.58 for everStick ® POST; MTT assay confirmed the absence of any toxic eluents, indicating its feasibility as new intracanal post material.

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Section: Introductionmentioning

confidence: 99%

Semi-interpenetrating network composites reinforced with Kevlar fibers for dental post fabrication

et al. 2019

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“…In our previous work, γ‐MPS was also used to modify quartz fibers (QF) with different mass fractions (0–24 wt%), and the obtained fibers were introduced as reinforcements for dental fiber posts . The results showed that the use of 12 wt% γ‐MPS provided the best flexural strength and flexural modulus of the fiber posts ( Figure ) . This also indicated that adding the appropriate amount of γ‐MPS improved the filler/matrix interfacial bonding and helped ensure the uniform coverage of fillers, both of which play a significant role in improving the mechanical performance of dental fiber posts ( Figure ) …”

Section: Modification Technologies To Improve the Matrix/filler Intermentioning

confidence: 91%

Section: Modification Technologies To Improve the Matrix/filler Intermentioning

confidence: 99%

Section: Modification Technologies To Improve the Matrix/filler Intermentioning

confidence: 99%

Section: Modification Technologies To Improve the Matrix/filler Intermentioning

confidence: 99%

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Dental Restorative Resin Composites: Modification Technologies for the Matrix/Filler Interface

Chen

Wang

et al. 2018

Macro Materials & Eng

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Dental restorative resin composites are a pivotal class of organic/inorganic hybrid materials. The main reasons for their failure are secondary caries and dental composite fractures, which prevent their long‐term service in posterior restorations. A remedy to these problems is improving the interfacial adhesion between the resin matrix and the fillers. Surface‐modified inorganic fillers show strong potential as more than just a bond between these two phases and can therefore be considered a medium to compensate for the deficits of dental composites. This paper mainly discusses strategies to improve the interfacial adhesion of dental composites, including surface treatments of fillers with coupling agents, polymers, and tetraethyl orthosilicate (TEOS) coatings, as well as the selection of porous fillers capable of micromechanical resin matrix/filler interlocking. Additionally, the existing deficiencies of these strategies and the prospects for dental composites are discussed.

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On the Influence of Li₃InCl₆−PEDOT:PSS Hybrids in Solid‐State Batteries Prepared via an Aqueous One‐Pot Approach

Nazmutdinova,

Rosenbach,

Schmidt

et al. 2024

Batteries & Supercaps

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Solid‐state batteries (SSBs) utilizing halide solid electrolytes (SE) have garnered attention due to their enhanced stability when paired with oxide‐based cathode active materials. However, the dynamic interparticle contact during cycling in SSBs poses challenges to their stability and performance. To mitigate this problem, in this study, we present a one‐pot, aqueous synthesis of composites that integrate ion conductivity, electron conductivity, and mechanical stability into a single material. The developed composites consist of a halide SE, lithium indium chloride (Li3InCl6), and a conductive polymer (CP), poly(3,4‐ethylendioxythiophene)/poly(styrene sulfonate) (PEDOT:PSS). The successful synthesis was verified using spectroscopic, thermal, scattering, and microscopy methods, with Kelvin Probe Force Microscopy (KPFM) demonstrating the distribution of PEDOT:PSS at the grain boundaries between Li3InCl6 particles. Upon incorporating our composite material with lithium nickel manganese cobalt oxide (NMC) cathode active material (CAM) as catholyte, an increase in the partial electronic transport was observed with increasing CP content. A direct correlation between the partial electronic transport of the catholytes and the initial discharge capacities was demonstrated. This study lays the groundwork for the preparation of multi‐functional catholytes under more sustainable conditions, without the need for organic solvents, extremely high temperatures, or special environments.

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Surface modification of quartz fibres for dental composites through a sol-gel process

Cited by 26 publications

References 19 publications

Semi-interpenetrating network composites reinforced with Kevlar fibers for dental post fabrication

Semi-interpenetrating network composites reinforced with Kevlar fibers for dental post fabrication

Dental Restorative Resin Composites: Modification Technologies for the Matrix/Filler Interface

On the Influence of Li₃InCl₆−PEDOT:PSS Hybrids in Solid‐State Batteries Prepared via an Aqueous One‐Pot Approach

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Surface modification of quartz fibres for dental composites through a sol-gel process

Cited by 26 publications

References 19 publications

Semi-interpenetrating network composites reinforced with Kevlar fibers for dental post fabrication

Semi-interpenetrating network composites reinforced with Kevlar fibers for dental post fabrication

Dental Restorative Resin Composites: Modification Technologies for the Matrix/Filler Interface

On the Influence of Li3InCl6−PEDOT:PSS Hybrids in Solid‐State Batteries Prepared via an Aqueous One‐Pot Approach

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Product

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On the Influence of Li₃InCl₆−PEDOT:PSS Hybrids in Solid‐State Batteries Prepared via an Aqueous One‐Pot Approach