Publication: Dynamic viscoelastic properties of experimental silicone soft lining materials
Issued Date
2010-12-01
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ISSN
02874547
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2-s2.0-79951497412
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Mahidol University
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SCOPUS
Bibliographic Citation
Dental Materials Journal. Vol.29, No.4 (2010), 454-460
Suggested Citation
Wallapat Santawisuk, Widchaya Kanchanavasita, Chakrit Sirisinha, Choltacha Harnirattisai Dynamic viscoelastic properties of experimental silicone soft lining materials. Dental Materials Journal. Vol.29, No.4 (2010), 454-460. doi:10.4012/dmj.2009-126 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/29031
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Title
Dynamic viscoelastic properties of experimental silicone soft lining materials
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Abstract
The purpose of this study was to evaluate the dynamic viscoelastic properties of experimental silicone soft lining materials, Silastic® 4-4210 reinforced with silica fillers. Storage modulus (E'), loss modulus (E") and damping factor (tan δ) were determined using mechanical analyzer under a deformation strain level of 0.27% at test frequency and a temperature range of 1 Hz and 0 to respectively. The degree of silica dispersion was also studied using a field emission scanning electron microscopy (FE-SEM). ANOVA and Tukey's HSD test results indicated that the prepared silicone elastomers provided a significantly greater factor, but less storage modulus than GC Reline Soft and Tokuyama Sofreliner Tough (p<0.001). The storage moduli, loss and damping factor of the experimental silicone elastomers increased with increasing amounts of fumed silica. In conclusion, experimental silicone elastomers revealed acceptable dynamic viscoelastic properties to be used as denture soft lining materials.