Study on UV-Curable Polyester Acrylate/SiO2 Nanocomposite Resin

2012 ◽  
Vol 151 ◽  
pp. 368-372
Author(s):  
Ming Guang Yu ◽  
Guang Xue Chen ◽  
Qi Feng Chen ◽  
Wen Tao Huang
Keyword(s):  
Silane Coupling Agent ◽  
Composite Resin ◽  
Particle Size Analysis ◽  
Size Analysis ◽  
Vacuum Oven ◽  
Uv Curable ◽  
Application Range ◽  
Reactive Diluents ◽  
Silane Coupling ◽  
Polyester Acrylate

Using the hydrolysis reaction of TEOS and ethanol to prepare nano-SiO2 sol, and grafting with silane coupling agent WD-20 to introduce double bonds to make a surface modification, the nano-SiO2 sol mixed with the light-cured resin PEA, reactive diluents TPGDA and photoinitiators 1171 under ultrasonicto after dried concentration in vacuum oven, then the composite resin gotten was characterized through FTIR, TGA, UV-Vis and particle size analysis. The results showed as follows: the light-cured resin modified by nano-SiO2 with WD-20 was better in dispersion and stability, and durability, abrasion resistance and other performances of the coating improved significantly which broadened the application range of light-cured resin.

A study on UV-curable adhesives for optical pick-up: II. Silane coupling agent effect

2005 ◽  
Vol 25 (6) ◽  
pp. 534-542 ◽  
Author(s):  
Jeong Ho Moon ◽  
Yong Gun Shul ◽  
Sun Yeong Hong ◽  
Yeong Sae Choi ◽  
Hyeng Tae Kim
Keyword(s):  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Uv Curable ◽  
Silane Coupling

scholarly journals Composite resin repairs: What is the most effective protocol?

2017 ◽  
Vol 20 (1) ◽  
pp. 99
Author(s):  
Alessandra Pereira Andrade ◽  
Angela Mayumi Shimaoka ◽  
Rubens Corte Real de Carvalho
Keyword(s):  
Bond Strength ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Composite Resin ◽  
Surface Treatments ◽  
Bonding Agent ◽  
Etch And Rinse ◽  
Silane Coupling ◽  
One Step ◽  
Self Etch

Objective: The objective of this study was to evaluate the combination effect of surface treatments and bonding agents on bond strength of repairs on aged composite resin. Materials and Methods: One hundred twenty microhybrid composite units (Filtek Z250) aged in distilled at 37ºC water for six months were submitted to different surface treatment prior to resin repairs. Ten specimens were randomly divided into 12 groups: non-treated/no bonding agent (negative control), sandblasting /no bonding agent, silane/no bonding agent, non-treated/ etch-and-rinse; non-treated/one-step self-etch; non-treated/ two-step self-etch; sandblasting/etch-and-rinse; sandblasting/one-step self-etch; sandblasting/two-step self-etch; silane coupling agent/etch-and-rinse; silane coupling agent/ one-step self-etch; silane coupling agent/two-step self-etch. Microshear testing was performed to bond strength assessment. Results: Two-way ANOVA and Tukey’s test (α=0.05) demonstrated significant difference between the surface treatments and adhesive systems. Only no treated surface/etch-and-rinse group showed lower bond strength values when compared to other groups. Conclusion: The considered surface treatments were capable to increase the effectiveness of the repair in composite resin when using the adhesive etch-and-rinse.

scholarly journals Acid Etching and Surface Coating of Glass-Fiber Posts: Bond Strength and Interface Analysis

2016 ◽  
Vol 27 (2) ◽  
pp. 228-233 ◽  
Author(s):  
Doglas Cecchin ◽  
Ana Paula Farina ◽  
Rafael Pino Vitti ◽  
Rafael Ratto Moraes ◽  
Ataís Bacchi ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Bond Strength ◽  
Glass Fiber ◽  
Coupling Agent ◽  
Surface Coating ◽  
Silane Coupling Agent ◽  
Failure Modes ◽  
Composite Resin ◽  
Silane Coupling ◽  
Unfilled Resin

Abstract The aim of this study was to evaluate the bond strength of a composite resin to glass-fiber post (GFP) treated or not with phosphoric acid, silane coupling agent, and unfilled resin. GFPs were etched or not with 37% phosphoric acid and different surface coating applied: silane coupling agent, unfilled resin, or both. Composite resin blocks were built around a 4-mm height on the GFP. Unfilled resin (20 s) and composite resin (40 s) were light activated by a light-emitting diode unit. The specimens were stored in distilled water at 37 °C for 24 h. Microtensile bond test was performed using a mechanical testing machine until failure (n=10). The data were analyzed using two-way ANOVA followed by Student-Newman-Keuls' test (p<0.05). Failure modes were classified as adhesive, mixed, or cohesive failures. Additional specimens (n=3) were made to analyze the bonded interfaces by scanning electron microscopy. The statistical analysis showed the factor 'surface coating' was significant (p<0.05), whereas the factor 'HP etching' (p=0.131) and interaction between the factors (p=0.171) were not significant. The highest bond strength was found for the silane and unfilled resin group (p<0.05). A predominance of adhesive and cohesive failures was found. Differences regarding the homogeneity and thickness of the unfilled resin layer formed by different GFP surface treatments were observed. The application of silane and unfilled resin can improve the bond strength between GFP and resin composite.

Comparison of Coupling Effectiveness among Amino-, Chloro-, and Mercapto Silanes in Chloroprene Rubber

2013 ◽  
Vol 747 ◽  
pp. 530-533 ◽  
Author(s):  
Chomsri Siriwong ◽  
Pongdhorn Sea-Oui ◽  
Chakrit Sirisinha
Keyword(s):  
Mechanical Properties ◽  
Particle Size Analysis ◽  
Coupling Agents ◽  
Size Analysis ◽  
Silane Coupling Agents ◽  
Precipitated Silica ◽  
Silane Coupling ◽  
Chloroprene Rubber ◽  
Bet Technique ◽  
Surface Modified

The present work focuses mainly on the uses of silane coupling agents in chloroprene rubber (CR) reinforced with precipitated silica (PSi). Grafting of organoalkoxysilane onto surfaces of PSi was conducted, and the characteristics of surface-modified PSi were determined by BET technique, light-scattering particle size analysis, DRIFT and 29Si NMR spectroscopy. The 3 types of silane coupling agents used in this work were as follows: 3-aminopropyl triethoxysilane (APTES), 3-chloropropyl triethoxysilane (CPTES) and bis (3-triethoxysilylpropyl) tetrasulfide (TESPT). Processability of compounds and mechanical properties of vulcanizates were then investigated, and compared for the effectiveness of silane coupling agents used in property enhancement. The results reveal that the silane type affects not only the compound processability, but also the vulcanizate mechanical properties. Among 3 silanes, the CPTES and TESPT are capable of reducing the filler-filler interaction to greater extent than the APTES, leading to superior compound processability. Moreover, the amino and mercapto groups of APTES and TESPT, respectively, significantly enhance the mechanical properties of CR vulcanizate more effectively than the chloro groups of CPTES. This might be ascribed to the combined effects of enhanced rubber-filler interaction and improved filler dispersion.

Influence of silane coupling agent on the properties of UV curable SiO2-PMMA hybrid nanocomposite

2018 ◽  
Vol 89 (3) ◽  
pp. 796-806 ◽  
Author(s):  
Marion Provost ◽  
Katarzyna Raulin ◽  
Tony Maindron ◽  
Vincent Gaud
Keyword(s):  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Hybrid Nanocomposite ◽  
Uv Curable ◽  
Silane Coupling

Adhesion improvement of UV-curable ink using silane coupling agent onto glass substrate

2013 ◽  
Vol 27 (13) ◽  
pp. 1499-1510 ◽  
Author(s):  
Kairui Zhang ◽  
Tao Li ◽  
Tao Zhang ◽  
Chaoxia Wang ◽  
Chunying Wang ◽  
...  
Keyword(s):  
Coupling Agent ◽  
Glass Substrate ◽  
Silane Coupling Agent ◽  
Uv Curable ◽  
Silane Coupling

scholarly journals Effect of Silane Type and Air-Drying Temperature on Bonding Fiber Post to Composite Core and Resin Cement

2014 ◽  
Vol 25 (3) ◽  
pp. 217-224 ◽  
Author(s):  
Camila Maria Peres de Rosatto ◽  
Marina Guimarães Roscoe ◽  
Veridiana Resende Novais ◽  
Murilo de Sousa Menezes ◽  
Carlos José Soares
Keyword(s):  
Bond Strength ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Room Temperature ◽  
Composite Resin ◽  
Resin Cement ◽  
Air Drying ◽  
Drying Temperature ◽  
Silane Coupling ◽  
Push Out

This study evaluated the influence of silane type and temperature of silane application on push-out bond strength between fiberglass posts with composite resin core and resin cement. One hundred and sixty fiberglass posts (Exacto, Angelus) had the surface treated with hydrogen peroxide 24%. Posts were divided in 8 groups according to two study factors: air-drying temperature after silane application (room temperature and 60 ºC) and silane type: three pre-hydrolyzed - Silano (Angelus), Prosil (FGM), RelyX Ceramic Primer (3M ESPE) and one two-component silane - Silane Coupling Agent (Dentsply). The posts (n=10) for testing the bond strength between post and composite core were centered on a cylindrical plastic matrix and composite resin (Filtek Z250 XT, 3M ESPE) that was incrementally inserted and photoactivated. Eighty bovine incisor roots (n=10) were prepared for testing the bond strength between post and resin cement (RelyX U100, 3M ESPE) and received the fiberglass posts. Push-out test was used to measure the bond strength. Data were analyzed by two-way ANOVA followed by Tukey's test (a=0.05). ANOVA revealed that temperature and silane had no influence on bond strength between composite core and post. However, for bond strength between post and resin cement, the temperature increase resulted in a better performance for Silane Coupling Agent, Silano and RelyX Ceramic Primer. At room temperature Silane Coupling Agent showed the lowest bond strength. Effect of the warm air-drying is dependent on the silane composition. In conclusion, the use of silane is influenced by wettability of resinous materials and pre-hydrolyzed silanes are more stable compared with the two-bottle silane.

Preparation and Properties of Organosilicon-Modified Epoxy Esters Resin

2014 ◽  
Vol 960-961 ◽  
pp. 148-151
Author(s):  
Xiao Jun Hu ◽  
Ya Nan Chen ◽  
Qing Bian ◽  
Ming Chen ◽  
Wen Qin ◽  
...  
Keyword(s):  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Composite Resin ◽  
Silica Sol ◽  
Solution Polymerization ◽  
Pure Epoxy ◽  
Polymerization Mechanism ◽  
Silane Coupling ◽  
Comprehensive Performance ◽  
Modified Epoxy

Organosilicon-modified epoxy esters resin was successfully prepared by solution polymerization and the effect of content of silica sol and silane coupling agent (KH560) on the resistance to water, acid, alkali and film dry, the polymerization mechanism, structure were studied, respectively. The results showed that: compared with the properties of resistance to water, acid, alkali and film dry of pure epoxy esters resin, to some extent, those of organosilicon-modified epoxy esters resin had been improved a lot. The properties of resistance to water, acid, alkali and aging increased at first and then changed little with the increase of the content of organosilicon. Especially, the comprehensive performance of composite resin was relatively excellent when the content of silica sol and KH560 was 10%, respectively. Keywords: Organosilicon; epoxy esters resin; silane coupling agent; solution polymerization

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