Methods for Calculating Structural Silicone Sealant Joint Dimensions

2008 ◽  
pp. 46-46-12 ◽  
Author(s):  
MH Haugsby ◽  
WJ Schoenherr ◽  
LD Carbary ◽  
CM Schmidt
Keyword(s):  
Silicone Sealant ◽  
Structural Silicone

Structural Silicone Sealant Curtain Walls: Field or Factory Glazing?

2008 ◽  
pp. 58-58-8
Author(s):  
MS Takish ◽  
MH Haugsby ◽  
CM Schmidt ◽  
WJ Schoenherr
Keyword(s):  
Silicone Sealant ◽  
Structural Silicone

Safe and Sustainable for the Structural Silicone Sealant in Ultra High-Rise Building Curtains

2012 ◽  
Vol 238 ◽  
pp. 83-86
Author(s):  
Hai Long Zhang ◽  
Ling Quan
Keyword(s):  
Failure Time ◽  
Standard Condition ◽  
High Rise ◽  
High Rise Building ◽  
Silicone Sealant ◽  
Structural Silicone ◽  
Good Ability ◽  
Long Time ◽  
Aging Conditions ◽  
Aging Factors

The properties of the structural silicone sealant under standard condition and after aging conditions were characterized. The results showed that the structural silicone sealant had very good ability to resist the ultraviolet in the long time. In the other aging environment conditions, the different failure time for the structural silicone sealant were appeared. The value of the maximum strength under the different mechanical aging factors obviously existed in the structural silicone sealant with different compositions. The residual strength that the attenuation ratio is more than 75% standard strength would keep the ultra high-rise building curtains safe and sustainable.

Reverse torque values of abutment screws after dynamic loading: The effects of sealant agents and the taper of conical connections

2020 ◽  
Author(s):  
Arda Ozdiler ◽  
suleyman dayan ◽  
Burc Gencel ◽  
Gulbahar Isık-Ozkol
Keyword(s):  
Dynamic Loading ◽  
Antibacterial Agent ◽  
In Vitro Study ◽  
Control Group ◽  
Silicone Sealant ◽  
Reverse Torque ◽  
The Stability ◽  
Torque Values ◽  
Chlorhexidine Gel

This in vitro study evaluated the influence of taper angles on the internal conical connections of implant systems and of the application of chlorhexidine gel as an antibacterial agent or a polyvinyl siloxane (PVS) sealant on the reverse torque values of abutment screws after dynamic loading. The current study tested four implant systems with different taper angles (5.4°, 12°, 45°, and 60°). Specimens were divided into three groups: control (neither chlorhexidine gel filled nor silicone sealed), 2% chlorhexidine gel-filled or silicone-sealed group, and group subjected to a dynamic load of 50 N at 1 Hz for 500,000 cycles prior to reverse torque measurements. Quantitative positive correlation was observed between the taper angle degree and the percentage of tightening torque loss. However, this correlation was significant only for the 60° connection groups except in the group in which a sealant was applied ( p = 0.013 for the control group, p = 0.007 for the chlorhexidine group). Percentages of decrease in the torque values of the specimens with silicone sealant application were significantly higher compared with both the control and chlorhexidine groups ( p = 0.001, p = 0.002, p = 0.001, and p = 0.002, respectively, according to the increasing taper angles); the percentage of decrease in torque values due to chlorhexidine application was statistically insignificant when compared with the control group. The application of gel-form chlorhexidine as an antibacterial agent does not significantly affect the stability of the implant–abutment connection under dynamic loads. PVS sealants may cause screw loosening under functional loads.

Radiation induces grafting of styrene onto silicone sealant films

2013 ◽  
Vol 298 (3) ◽  
pp. 1785-1790
Author(s):  
Giovanni González-Pérez ◽  
Guillermina Burillo
Keyword(s):  
Silicone Sealant
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